African Development Bank Group · PDF fileAfrican Development Bank's Field Office in Abuja,...

African Development Bank's Field Office in Abuja,

Nigeria

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LOT 2: VOL 2-2 - SPECIFICATIONS FOR THE

INSTALLATION OF PIPE SERVICES.

African Development Bank Group

Document Verification

Project Title AFRICAN DEVELOPMENT BANK NIGERIA FIELD

OFFICE, ABUJA Project Number

K.1036 Document title PIPED SERVICES SPECIFICATION File reference

K1036 Revision Date Filename PIPED SERVICES SYSTEM SPECIFICATION

0 SEPT 2012

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Prepared by Checked by Approved by

Name SSY MAO ABS Filename

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Prepared by Checked by Approved by

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AFDB SPECS – PIPED SERVICES 3

Contents R10 RAINWATER PIPEWORK/GUTTERS ...............................................................................17

PART 1 SYSTEM OBJECTIVES ...........................................................................................17 PART 3 SPECIFICATION CLAUSES SPECIFIC TO R10 ......................................................18 BS APPENDIX ......................................................................................................................22

R11 FOUL DRAINAGE ABOVE GROUND ...............................................................................23 PART 1 SYSTEM OBJECTIVES ...........................................................................................23 PART 2 SELECTION SCHEDULES FOR REFERENCE SPECIFICATIONS .........................24

210.000 PIPELINES ..........................................................................................................24 211.000 PIPELINE ANCILLARIES .....................................................................................27 220.000 PUMPS ................................................................................................................29 225.000 CLEANING AND CHEMICAL TREATMENT.........................................................30 251.000 TESTING AND COMMISSIONING OF MECHANICAL SERVICES ......................31 254.000 IDENTIFICATION - MECHANICAL ......................................................................32 290.000 FIXING TO BUILDING FABRIC ...........................................................................33 291.000 OFF-SITE PAINTING AND ANTI-CORROSION TREATMENT ............................34

PART 3 SPECIFICATION CLAUSES SPECIFIC TO R11 ......................................................35 BS APPENDIX ......................................................................................................................38

R12 DRAINAGE BELOW GROUND .........................................................................................40 PART 1 SYSTEM OBJECTIVES ...........................................................................................40 PART 3 SPECIFICATION CLAUSES SPECIFIC TO R12 ......................................................41 BS APPENDIX ......................................................................................................................57

R20 SEWAGE PUMPING .........................................................................................................60 PART 1 SYSTEM OBJECTIVES ..........................................................................................60 PART 3 SPECIFICATION CLAUSES SPECIFIC TO R20 ......................................................61 BS APPENDIX ......................................................................................................................63

R21 SEWAGE TREATMENT/STERILISATION .........................................................................64 PART 1 SYSTEM OBJECTIVES ...........................................................................................64 PART 3 SPECIFICATION CLAUSES SPECIFIC TO R21 ......................................................65 BS APPENDIX ......................................................................................................................69

S10 COLD WATER ...................................................................................................................70 PART 1 SYSTEM OBJECTIVES ..........................................................................................70 PART 2 SELECTION SCHEDULES FOR REFERENCE SPECIFICATIONS .........................71

210.000 PIPELINES ..........................................................................................................71 211.000 PIPELINE ANCILLARIES .....................................................................................76 220.000 PUMPS ................................................................................................................81 221.000 WATER TANKS/CISTERNS ................................................................................84 225.000 CLEANING AND CHEMICAL TREATMENT.........................................................85 250.000 THERMAL INSULATION ......................................................................................87 251.000 TESTING AND COMMISSIONING OF MECHANICAL SERVICES ......................88 252.000 VIBRATION ISOLATION MOUNTINGS ...............................................................90 254.000 IDENTIFICATION - MECHANICAL ......................................................................92 290.000 FIXING TO BUILDING FABRIC ...........................................................................93 291.000 OFF-SITE PAINTING AND ANTI-CORROSION TREATMENT ............................94

PART 3 SPECIFICATION CLAUSES SPECIFIC TO S10 ......................................................95 BS APPENDIX ......................................................................................................................97

S11 HOT WATER ................................................................................................................... 101 PART 1 SYSTEM OBJECTIVES ........................................................................................ 101

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PART 3 SPECIFICATION CLAUSES SPECIFIC TO S11 .................................................... 101 BS APPENDIX .................................................................................................................... 103

S40 PETROL/DIESEL STORAGE/DISTRIBUTION ................................................................ 104 PART 1 SYSTEM OBJECTIVES ........................................................................................ 104 PART 3 SPECIFICATION CLAUSES SPECIFIC TO S40 .................................................... 105 BS APPENDIX .................................................................................................................... 106

S60 FIRE HOSE REELS ......................................................................................................... 107 PART 1 SYSTEM OBJECTIVES ........................................................................................ 107 PART 3 SPECIFICATION CLAUSES SPECIFIC TO S60 .................................................... 108 BS APPENDIX .................................................................................................................... 111

S61 DRY RISERS ................................................................................................................... 112 PART 1 SYSTEM OBJECTIVES ......................................................................................... 112 PART 3 SPECIFICATION CLAUSES SPECIFIC TO S61 .................................................... 113 BS APPENDIX .................................................................................................................... 115

S65 FIRE HYDRANTS ............................................................................................................ 116 PART 1 SYSTEM OBJECTIVES ........................................................................................ 116 PART 3 SPECIFICATION CLAUSES SPECIFIC TO S65 .................................................... 117 BS APPENDIX .................................................................................................................... 118

Y10 PIPELINES ...................................................................................................................... 119 Y10.1000 GENERAL .................................................................................................... 120 Y10.2010A HEAVY BLACK STEEL PIPES TO BS EN 10255: ..................................... 120 Y10.2010B MEDIUM BLACK STEEL PIPES TO BS EN 10255: ................................... 120 Y10.2010C MEDIUM GALVANISED STEEL PIPES TO BS EN 10255: ........................ 120 Y10.2010D HEAVY GALVANISED STEEL PIPES TO BS EN 10255: .......................... 120 Y10.2010H MEDIUM GALVANISED STEEL PIPES TO BS EN 10255 - GROOVED ENDS: .......................................................................................................................... 120 Y10.2020A STEEL FITTINGS - SCREWED BENDS AND SPRINGS TO BS EN 10255: ..................................................................................................................................... 121 Y10.2060A HEAVY WEIGHT CARBON STEEL FITTINGS, BUTT WELDED TO BS EN 10253: .......................................................................................................................... 121 Y10.2060B MEDIUM WEIGHT CARBON STEEL FITTINGS, BUTT WELDED TO BS EN 10253: .......................................................................................................................... 121 Y10.2070A MALLEABLE CAST IRON FITTINGS, SCREWED: .................................... 121 Y10.2070B GALVANISED MALLEABLE CAST IRON FITTINGS, SCREWED: ............ 121 Y10.2080F PAINTED STEEL FITTINGS, GROOVED FOR MECHANICAL JOINTS: ... 121 Y10.2200# CARBON & STAINLESS STEEL COMPRESSION COUPLINGS TO BS 4368-1: ......................................................................................................................... 121 Y10.2250A AUSTENITIC STAINLESS STEEL TO BS EN 10216-5: ............................. 122 Y10.2250B AUSTENITIC STAINLESS STEEL TO BS EN 10217-1: ............................. 122 Y10.2255A STAINLESS STEEL FITTINGS, GROOVED MECHANICAL JOINTS: ....... 122 Y10.2270A COPPER HALF HARD: .............................................................................. 122 Y10.2270B CHROMIUM PLATED COPPER, HALF HARD: ......................................... 122 Y10.2270C POLYETHYLENE SHEATHED COPPER, HALF HARD: ........................... 123 Y10.2290# COPPER, HARD: ....................................................................................... 123 Y10.2290A COPPER, HARD: ....................................................................................... 123 Y10.2310A CAPILLARY FITTINGS FOR COPPER TUBING, GENERAL POTABLE RANGE: ....................................................................................................................... 123 Y10.2310B CAPILLARY FITTINGS FOR CHROME PLATED COPPER TUBING, POTABLE RANGE: ...................................................................................................... 123 Y10.2310C CAPILLARY FITTINGS FOR COPPER TUBING, HIGH DUTY RANGE: ... 123 Y10.2315A COPPER PRESS FITTINGS FOR COPPER TUBING: .............................. 124

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Y10.2315B GUNMETAL PRESS FITTINGS FOR COPPER TUBING: ......................... 124 Y10.2320A TYPE A COMPRESSION FITTINGS FOR COPPER TUBING: .................. 124 Y10.2320B TYPE A COMPRESSION FITTINGS FOR CHROME PLATED COPPER TUBING: ....................................................................................................................... 124 Y10.2321A COPPER TABLE X FITTINGS, GROOVED MECHANICAL JOINTS: ........ 124 Y10.2322 CAPILLARY FITTINGS, SHORT, FOR BRAZING TO COPPER TUBING: ... 124 Y10.2350A CAST IRON PIPES AND FITTINGS TO BS 416-1: .................................... 125 Y10.2370A CAST IRON PIPES TO BS 437 FOR FLEXIBLE JOINTS: ......................... 125 Y10.2380A CAST IRON FITTINGS TO BS 437 FOR FLEXIBLE JOINTS: ................... 125 Y10.2390A RED CAST IRON PIPES AND FITTINGS TO BS EN 877: ......................... 125 Y10.2390B GREY CAST IRON PIPES AND FITTINGS TO BS EN 877: ...................... 125 Y10.2410A FLANGED DUCTILE IRON PIPES AND FITTINGS TO BS EN 545: .......... 125 Y10.2410B DUCTILE IRON PIPES AND FITTINGS TO BS EN 545: ........................... 125 Y10.2420A FLANGED DUCTILE IRON PIPES AND FITTINGS TO BS EN 598: .......... 126 Y10.2420B DUCTILE IRON PIPE AND FITTINGS TO BS EN 598: .............................. 126 Y10.2430 LAYERED PIPE AND FITTINGS FOR HOT AND COLD WATER TO BS EN ISO 21003: ................................................................................................................... 126 Y10.2440 MULTILAYERED PLASTICS PIPE SYSTEMS FOR INDOOR GAS INSTALLATIONS TO BS ISO 17484-1: ........................................................................ 126 Y10.2442 PLASTIC PIPING SYSTEMS TO BS EN 15014: .......................................... 126 Y10.2455A PLASTICS PIPING SYSTEMS FOR WATER SUPPLY - PIPES TO BS EN 1452: ............................................................................................................................ 126 Y10.2475A PLASTICS PIPING SYSTEMS FOR WATER SUPPLY - FITTINGS TO BS EN 1452: ...................................................................................................................... 126 Y10.2480A UNPLASTICIZED PVC TO BS 4514: ......................................................... 127 Y10.2490A UNPLASTICIZED PVC FITTINGS, SOLVENT WELDING TO BS 4514: .... 127 Y10.2491A ORIENTED UNPLASTICISED PVC TO BS ISO 16422: ............................. 127 Y10.2495A PLASTICS PIPING SYSTEMS TO BS EN 1453: ....................................... 127 Y10.2510A COMPRESSION FITTINGS FOR POLYETHYLENE PIPES: ..................... 127 Y10.2520 POLYETHYLENE TO BGC/PS/PL2 AND BS 3412: ..................................... 127 Y10.2525A BURIED POLYETHYLENE PIPES FOR GASEOUS FUELS TO BS ISO 4437: ............................................................................................................................ 127 Y10.2525B BURIED POLYETHYLENE PIPES FOR GASEOUS FUELS TO BS ISO 4437: ............................................................................................................................ 128 Y10.2525C BURIED POLYETHYLENE PIPES FOR GASEOUS FUELS TO BS ISO 4437: ............................................................................................................................ 128 Y10.2528 POLYETHYLENE PIPES TO BS EN 1555: .................................................. 128 Y10.2530 POLYETHYLENE FITTINGS, FUSION TO BGC/PS/PL2 PART 2: ............... 128 Y10.2538 POLYETHYLENE FUSION FITTINGS TO BS EN 1555: .............................. 128 Y10.2545A PLASTICS PIPING SYSTEMS TO BS EN 1451-1 - PIPES: ....................... 128 Y10.2552A POLYPROPYLENE PIPING SYSTEMS FOR UNDERGROUND DRAINAGE AND SEWERAGE TO BS EN 14758: ........................................................................... 129 Y10.2553A PIPES AND FITTINGS WITH SMOOTH INTERNAL AND EXTERNAL SURFACE, TYPE A, TO BS EN 13476-2: .................................................................... 129 Y10.2553B PIPES AND FITTINGS WITH SMOOTH INTERNAL AND PROFILED EXTERNAL SURFACE, TYPE B, TO BS EN 13476-3: ................................................. 129 Y10.2555A PLASTICS PIPING SYSTEMS TO BS EN 1451-1 - FITTINGS: ................. 129 Y10.2580A PVC-U PIPING SYSTEMS - PIPES: .......................................................... 129 Y10.2585A PVC-U PIPING SYSTEMS TO BS EN 1329-1 - FITTINGS: ....................... 129 Y10.2710# VULCATHENE: .......................................................................................... 130 Y10.2720# VULCATHENE FITTINGS: ......................................................................... 130

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Y10.2730# FULLY PLASTICIZED NYLON TO BS 5409-1: ........................................... 130 Y10.2760# GLASS FIBRE REINFORCED PLASTICS TO BS 5480: ............................ 130 Y10.2772# GLASS REINFORCED PLASTICS (UNSATURATED POLYESTER RESIN) TO BS EN 1796 AND BS EN 14364: ............................................................................ 131 Y10.2810# VITRIFIED CLAY TO BS EN 295: .............................................................. 131 Y10.3010A CIRCULAR FLANGES FOR PIPES, PN DESIGNATED - WELDED FLANGE: ..................................................................................................................................... 132 Y10.3010B CIRCULAR FLANGES FOR PIPES, PN DESIGNATED - THREADED FLANGE: ...................................................................................................................... 132 Y10.3010C CIRCULAR FLANGES FOR PIPES, PN DESIGNATED - CAST IRON FLANGE: ...................................................................................................................... 132 Y10.3020A JOINTING RINGS - NON-METALLIC FLAT GASKETS: ............................ 132 Y10.3020B JOINTING RINGS - METALLIC GASKETS: ............................................... 132 Y10.3020C JOINTING RINGS FOR CAST IRON: ........................................................ 132 Y10.3030A SCREWED JOINTS TO BS 21 AND BS EN 10226-1: ................................ 132 Y10.3030B SCREWED JOINTS TO BS 21 AND BS EN 10226-1 WITH PTFE TAPE: . 132 Y10.3030C SCREWED JOINTS TO BS 21 AND BS EN 10226-1 WITH CHEMICAL CLEANING: .................................................................................................................. 132 Y10.3050A WELDED JOINTS, WELDING RODS FOR STEEL PIPES: ....................... 132 Y10.3060# BRAZED JOINTS: ...................................................................................... 132 Y10.3070A CAPILLARY JOINTS FOR COPPER: ........................................................ 132 Y10.3070B CAPILLARY JOINTS FOR POTABLE WATER: ......................................... 133 Y10.3095B JOINTING MATERIALS FOR PLASTICS PIPES TO BS 7291 - PUSHFIT: 133 Y10.3095C JOINTING MATERIALS FOR PLASTICS PIPES TO BS 7291 - SOLVENT CEMENT: ..................................................................................................................... 133 Y10.3097# JOINTING EQUIPMENT FOR POLYBUTYLENE (PB) PIPES: ................... 133 Y10.3102 JOINTING EQUIPMENT FOR PUSH-FIT SYSTEM: .................................... 133 Y10.3105A STAINLESS STEEL COUPLINGS FOR CAST IRON PIPES TO BS EN 877: ..................................................................................................................................... 133 Y10.3105B RED DUCTILE IRON COUPLINGS FOR CAST IRON PIPES TO BS EN 877: ..................................................................................................................................... 133 Y10.3105C GREY DUCTILE IRON COUPLINGS FOR CAST IRON PIPES TO BS EN 877: .............................................................................................................................. 133 Y10.3105D BLACK DUCTILE IRON COUPLINGS FOR CAST IRON PIPES TO BS EN 877: .............................................................................................................................. 133 Y10.3110A SPIGOT/SOCKET CAULKED JOINTS:...................................................... 133 Y10.3170A FLEXIBLE COUPLINGS, SLEEVE TYPE: ................................................. 133 Y10.3180A FLEXIBLE FLANGE ADAPTERS, SLEEVE TYPE: .................................... 134 Y10.3190A WALL, FLOOR AND CEILING CHROMIUM PLATED MASKING PLATES: ..................................................................................................................................... 134 Y10.3190B WALL, FLOOR AND CEILING PLASTIC MASKING PLATES: ................... 134 Y10.4010 APPEARANCE: ............................................................................................ 134 Y10.4020 SPACING: .................................................................................................... 134 Y10.4030 GRADIENTS: ............................................................................................... 134 Y10.4040A AIR BOTTLES:........................................................................................... 134 Y10.4040B AUTOMATIC AIR VENTS: ......................................................................... 135 Y10.4050 DRAIN REQUIREMENTS: ........................................................................... 135 Y10.4060 EXPANSION AND CONTRACTION: ............................................................ 135 Y10.4070A PIPE FITTINGS, BENDS/SWEPT TEES: ................................................... 135 Y10.4070B PIPE FITTINGS, ELBOWS/SQUARE TEES: ............................................. 135 Y10.4090 FABRICATED FITTINGS - FERROUS: ........................................................ 135

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Y10.4100 FABRICATED FITTINGS - NON-FERROUS: ............................................... 135 Y10.4110 PIPES THROUGH WALLS AND FLOORS: .................................................. 135 Y10.4120A PIPE SLEEVES: ........................................................................................ 136 Y10.4120B PIPE SLEEVES WITH INSULATION CARRIED THROUGH: ..................... 136 Y10.4125 PIPE SLEEVES THROUGH FIRE BARRIERS: ............................................ 136 Y10.4150A TEMPORARY PLUGS, CAPS AND FLANGES: ......................................... 136 Y10.4160 FLANGED JOINTS GENERAL: .................................................................... 136 Y10.4170 DISSIMILAR METALS: ................................................................................. 136 Y10.4180 PIPE RINGS AND CLIPS: ............................................................................ 136 Y10.4190 ANCHORS: .................................................................................................. 136 Y10.4200 SLIDE GUIDES: ........................................................................................... 136 Y10.4205 PIPE SUPPORTS: ....................................................................................... 137 Y10.4210 SUPPORT SYSTEM - WIRE ROPE: ............................................................ 137 Y10.4220 SUPPORT SPACING: .................................................................................. 139 Y10.4230A ISOLATION AND REGULATION: .............................................................. 139 Y10.4240 MAINTENANCE AND RENEWAL: ............................................................... 139 Y10.5010A WELDING GENERAL, CLASS 1: ............................................................... 140 Y10.5010B WELDING GENERAL, CLASS 2: ............................................................... 140 Y10.5020 WELDED JOINTS, STEEL PIPES: ............................................................... 140 Y10.5030 PAINTING WELDED JOINTS, STEEL PIPES: ............................................. 140 Y10.5040 FLANGED JOINTS, STEEL PIPES: ............................................................. 140 Y10.5050 SCREWED JOINTS, STEEL PIPES: ............................................................ 140 Y10.5070A ANCHORS, STEEL PIPES, U-BOLTS: ...................................................... 140 Y10.5070B ANCHORS, STEEL PIPES, SLIP-ON FLANGES: ...................................... 140 Y10.5090 STEEL PIPEWORK PAINTING: ................................................................... 141 Y10.5100 COMPRESSION JOINTS, STAINLESS STEEL PIPES: ............................... 141 Y10.5120 BRAZED JOINTS, STAINLESS STEEL JOINTS: ......................................... 141 Y10.6010 WELDING GENERAL:.................................................................................. 141 Y10.6030 COMPRESSION JOINTS, COPPER PIPES, LIGHT GAUGE: ...................... 141 Y10.6040 CAPILLARY JOINTS, COPPER PIPES, LIGHT GAUGE: ............................. 141 Y10.6050 BRAZED JOINTS, COPPER/COPPER ALLOY PIPES: ................................ 141 Y10.6060A ANCHORS, COPPER PIPES, SADDLE CLAMPS: .................................... 141 Y10.6060B ANCHORS, COPPER PIPES, SADDLE CLAMPS: .................................... 141 Y10.6080 PRESS FITTING SYSTEM: .......................................................................... 142 Y10.6090 PUSH-FITTING SYSTEM: ............................................................................ 142 Y10.7010 FLANGED JOINTS, CAST IRON/DUCTILE IRON PIPES: ........................... 142 Y10.7020 CAULKED JOINTS, CAST IRON/SPUN CAST IRON PIPES: ...................... 142 Y10.7030 FLEXIBLE JOINTS, CAST IRON PIPES: ..................................................... 142 Y10.8010 SOLVENT WELDED JOINTS, PVC PIPES: ................................................. 142 Y10.8020 FUSION JOINTS, POLYETHYLENE PIPES: ................................................ 142 Y10.8030 MECHANICAL FITTINGS FOR POLYETHYLENE PIPE: ............................. 142 Y10.8040 ANCHORS - PVC PIPES: ............................................................................ 142 Y10.8050 JOINTING POLYBUTYLENE PIPES AND FITTINGS:.................................. 143 Y10.8060 COMPRESSION FITTINGS ON MULTI-LAYER PIPES: .............................. 143 Y10.9020A STEAM AND CONDENSE MAINS: ............................................................ 143 Y10.9020B STEAM AND CONDENSE MAINS: ............................................................ 143 Y10.9030 PROTECTION OF UNDERGROUND PIPEWORK: ...................................... 143 Y10.9040A PROTECTION OF BURIED PIPES, UNMARKED: ..................................... 143 Y10.9040B PROTECTION OF BURIED PIPES, MARKED: .......................................... 143 Y10.9060A INSTALLATION OF THERMALLY INSULATED UNDERGROUND PIPELINES TO BS EN 253: ......................................................................................... 143

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Y10.9060B INSTALLATION OF THERMALLY INSULATED UNDERGROUND PIPELINES TO BS 4508-1: .......................................................................................... 143 Y10.9060C INSTALLATION OF THERMALLY INSULATED UNDERGROUND PIPELINES WITH PLASTIC SERVICE PIPES: ............................................................ 144 Y10.9100 CORROSION PROTECTIVE TAPE: ............................................................ 144 Y10.9110 MECHANICAL PROTECTIVE TAPE: ........................................................... 144 Y10.9120A STEELWORK GALVANIZED AFTER MANUFACTURE: ........................... 144

Y11 PIPELINE ANCILLARIES ................................................................................................ 145 Y11.1000 GENERAL .................................................................................................... 145 Y11.2015A STOP VALVES TO BS EN 1213 FOR POTABLE WATER SUPPLIES - COMPRESSION ENDS FOR COPPER: ...................................................................... 145 Y11.2015B STOP VALVES TO BS EN 1213 FOR POTABLE WATER SUPPLIES - COMPRESSION ENDS FOR PLASTICS: .................................................................... 145 Y11.2015C STOP VALVES TO BS EN 1213 FOR POTABLE WATER SUPPLIES - CAPILLARY: ................................................................................................................ 145 Y11.2015D STOP VALVES TO BS EN 1213 FOR POTABLE WATER SUPPLIES - THREADED: ................................................................................................................ 145 Y11.2020A THREADED ENDS GATE VALVES TO BS EN 12288: .............................. 145 Y11.2020B COMPRESSION ENDS GATE VALVES TO BS EN 12288: ....................... 145 Y11.2020C FLANGED ENDS GATE VALVES TO BS EN 12288: ................................ 146 Y11.2020D LOOSE NUT/UNION ENDS GATE VALVES TO BS EN 12288: ................ 146 Y11.2030A FLANGED GATE VALVES TO BS EN 1171: ............................................. 146 Y11.2040A THREADED END GLOBE VALVES TO BS 5154: ..................................... 146 Y11.2040B FLANGED GLOBE VALVES TO BS 5154: ................................................. 146 Y11.2040C COMPRESSION GLOBE VALVES TO BS 5154: ....................................... 146 Y11.2040D COMPRESSION GLOBE VALVES TO BS 5154 FOR PLASTIC PIPE: ..... 146 Y11.2050A FLANGED GLOBE VALVES TO BS EN 13789: ......................................... 147 Y11.2060A PARALLEL SLIDE VALVES TO BS EN 1171:............................................ 147 Y11.2070A FLANGED STOP VALVES - GATE TYPE TO BS EN 1984: ...................... 147 Y11.2070B BUTT-WELDED BODY ENDS STOP VALVES - GATE TYPE TO BS EN 1984: ............................................................................................................................ 147 Y11.2070C SOCKET WELDED STOP VALVES - GATE TYPE TO BS EN 1984: ........ 147 Y11.2070D THREADED STOP VALVES - GATE TYPE TO BS EN 1984: ................... 147 Y11.2080A THREADED END BALL TYPE VALVES - SCREW DRIVER/KEY OPERATED: ................................................................................................................ 147 Y11.2080B COMPRESSION END BALL TYPE VALVES - SCREW DRIVER/KEY OPERATED: ................................................................................................................ 147 Y11.2080C THREADED END BALL TYPE VALVES - LEVER OPERATED: ................ 148 Y11.2080D COMPRESSION END BALL TYPE VALVES - LEVER OPERATED: ......... 148 Y11.2080E THREADED END BALL TYPE VALVES - LOCKSHIELD: .......................... 148 Y11.2080F COMPRESSION BALL TYPE VALVES - LOCKSHIELD: ........................... 148 Y11.2085A SCREWED END SERVICING VALVES - HANDWHEEL OPERATED: ...... 148 Y11.2085B COMPRESSION END SERVICING VALVES - HANDWHEEL OPERATED: ..................................................................................................................................... 148 Y11.2085C CAPILLARY END SERVICING VALVES - HANDWHEEL OPERATED: .... 148 Y11.2085D SCREWED END SERVICING VALVES - LEVER OPERATED: ................. 148 Y11.2085E COMPRESSION END SERVICING VALVES - LEVER OPERATED: ........ 148 Y11.2085F CAPILLARY END SERVICING VALVES - LEVER OPERATED: ................ 149 Y11.2085G SCREWED END SERVICING VALVES - SCREW DRIVER OPERATED: . 149 Y11.2085H COMPRESSION END SERVICING VALVES - SCREW DRIVER OPERATED: ................................................................................................................ 149

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Y11.2085I CAPILLARY END SERVICING VALVES - SCREW DRIVER OPERATED: . 149 Y11.2090A LEVER OPERATED BUTTERFLY VALVES TO BS EN 593 BETWEEN FLANGES: ................................................................................................................... 149 Y11.2090B GEAR OPERATED BUTTERFLY VALVES TO BS EN 593 BETWEEN FLANGES: ................................................................................................................... 149 Y11.2090C LEVER OPERATED BUTTERFLY VALVES BETWEEN MECHANICAL JOINTS: ....................................................................................................................... 149 Y11.2090D GEAR OPERATED BUTTERFLY VALVES BETWEEN MECHANICAL JOINTS: ....................................................................................................................... 149 Y11.2110A STOP VALVES - KEY OPERATED SLUICE TYPE A TO BS 5163-1 AND BS 5163-2: ......................................................................................................................... 150 Y11.2125# POLYETHYLENE VALVES TO BS EN 13244-5: ........................................ 150 Y11.2180# REGULATING/FLOW MEASUREMENT VALVES - GLOBE TYPE TO BS EN 13789: .......................................................................................................................... 150 Y11.2190# REGULATING/FLOW MEASUREMENT VALVES - GLOBE TYPE TO BS 5154: ............................................................................................................................ 151 Y11.2200# REGULATING/FLOW MEASUREMENT VALVES - GLOBE TYPE TO BS EN 13709: .......................................................................................................................... 151 Y11.2210A LEVER OPERATED REGULATING BUTTERFLY VALVES TO BS EN 593 BETWEEN FLANGES: ................................................................................................. 152 Y11.2210B GEAR OPERATED REGULATING BUTTERFLY VALVES TO BS EN 593 BETWEEN FLANGES: ................................................................................................. 152 Y11.2210C LEVER OPERATED REGULATING BUTTERFLY VALVES TO BS EN 593 BETWEEN MECHANICAL JOINTS: ............................................................................. 152 Y11.2210D GEAR OPERATED REGULATING BUTTERFLY VALVES TO BS EN 593 BETWEEN MECHANICAL JOINTS: ............................................................................. 152 Y11.2220A THREADED END DOUBLE REGULATING VALVES TO BS 7350, COPPER ALLOY:......................................................................................................................... 152 Y11.2220B FLANGED DOUBLE REGULATING VALVES TO BS 7350, COPPER ALLOY:......................................................................................................................... 152 Y11.2220C FLANGED DOUBLE REGULATING VALVES TO BS 7350, CAST IRON: . 153 Y11.2230A THREADED ENDS FLOW MEASUREMENT DEVICES TO BS 7350, COPPER ALLOY: ......................................................................................................... 153 Y11.2230B FLANGED ENDS FLOW MEASUREMENT DEVICES TO BS 7350 TYPE 3, COPPER ALLOY: ......................................................................................................... 153 Y11.2230C FLANGED FLOW MEASUREMENT DEVICE TO BS 7350 CAST IRON, TYPE 3: ........................................................................................................................ 153 Y11.2230E THREADED ENDS FLOW MEASUREMENT DEVICES TO BS 7350 TYPE 4, COPPER ALLOY: ......................................................................................................... 153 Y11.2230F FLANGED FLOW MEASUREMENT DEVICES TO BS 7350 TYPE 4, COPPER ALLOY: ......................................................................................................... 153 Y11.2230G FLOW MEASUREMENT DEVICES TO BS 7350 TYPE 4, CAST IRON: ... 153 Y11.2250# FLOW REGULATOR: ................................................................................. 153 Y11.2260A RADIATOR VALVES TO BS 2767 (TYPE 4): ............................................. 154 Y11.2270A THERMOSTATIC RADIATOR VALVES TO BS EN 215 TABLE A.1: ......... 155 Y11.2270B THERMOSTATIC RADIATOR VALVES TO BS EN 215 TABLE A.2: ......... 155 Y11.2270C THERMOSTATIC RADIATOR VALVES TO BS EN 215 TABLE A.3: ......... 155 Y11.2270D THERMOSTATIC RADIATOR VALVES TO BS EN 215 TABLE A.4: ......... 155 Y11.2270E TAMPER PROOF THERMOSTATIC RADIATOR VALVES TO BS EN 215 TABLE A.1: .................................................................................................................. 155 Y11.2270F TAMPER PROOF THERMOSTATIC RADIATOR VALVES TO BS EN 215

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TABLE A.2: .................................................................................................................. 155 Y11.2270G TAMPER PROOF THERMOSTATIC RADIATOR VALVES TO BS EN 215 TABLE A.3: .................................................................................................................. 156 Y11.2270H TAMPER PROOF THERMOSTATIC RADIATOR VALVES TO BS EN 215 TABLE A.4: .................................................................................................................. 156 Y11.2280A FLOAT OPERATED VALVES TO BS 1212-1, COPPER FLOAT: .............. 156 Y11.2280B FLOAT OPERATED VALVES TO BS 1212-1, PLASTIC FLOAT:............... 156 Y11.2290A THREADED END FLOAT OPERATED VALVES, BALANCED EQUILIBRIUM: ............................................................................................................. 156 Y11.2290B FLANGED FLOAT OPERATED VALVES, BALANCED EQUILIBRIUM:..... 156 Y11.2310# THERMOSTATIC CONTROL VALVES: ..................................................... 157 Y11.2315A OPEN/CLOSE CONTROL BALL VALVES: ................................................ 157 Y11.2315B TWO WAY CONTROL BALL VALVES: ...................................................... 157 Y11.2315C THREE WAY CONTROL BALL VALVES: .................................................. 157 Y11.2320A THREADED ENDS SWING CHECK VALVES TO BS 5154: ...................... 158 Y11.2320B FLANGED SWING CHECK VALVES TO BS 5154: ................................... 158 Y11.2330A FLANGED SWING CHECK VALVES TO BS EN 12334 ............................. 158 Y11.2330B WAFER BODY SWING CHECK VALVES TO BS EN 12334: ..................... 158 Y11.2330C FLANGED LIFT CHECK VALVES TO BS EN 12334: ................................ 158 Y11.2330D WAFER BODY LIFT CHECK VALVES TO BS EN 12334: ......................... 158 Y11.2340A FLANGED SWING CHECK VALVES TO BS EN 12334: ............................ 158 Y11.2385A COMBINED CHECK AND ANTI-VACUUM DEVICE TO PREVENT CONTAMINATION OF WATER BY BACKFLOW TO BS EN 14451: ............................ 158 Y11.2390A COMBINED CHECK AND ANTI-VACUUM TYPE ANTI BACK SYPHONAGE VALVES: ...................................................................................................................... 159 Y11.2391A HOSE UNION ANTI-VACUUM TYPE ANTI BACK SYPHONAGE VALVES: ..................................................................................................................................... 159 Y11.2395A VERIFIABLE BACKFLOW PREVENTER WITH REDUCED PRESSURE ZONE (RPZ) VALVE - GENERAL REQUIREMENTS: .................................................. 159 Y11.2395B VERIFIABLE BACKFLOW PREVENTER WITH REDUCED PRESSURE ZONE (RPZ) VALVE - INSTALLATION: ....................................................................... 159 Y11.2395C VERIFIABLE BACKFLOW PREVENTER WITH REDUCED PRESSURE ZONE (RPZ) VALVE - ON SITE INSPECTION AND TESTING: ................................... 160 Y11.2395D VERIFIABLE BACKFLOW PREVENTER WITH REDUCED PRESSURE ZONE (RPZ) VALVE - RECORD OF INSTALLATION AND TEST DATA: .................... 160 Y11.2400# PRESSURE REDUCING VALVES - INTEGRAL SENSOR TYPE: ............. 160 Y11.2410# PRESSURE REDUCING VALVES - PILOT OPERATED TYPE: ................ 160 Y11.2420# PRESSURE CONTROL VALVES - DIRECT ACTING TYPE: ..................... 161 Y11.2422# IN LINE DIFFERENTIAL PRESSURE CONTROL VALVES - DIRECT ACTING TYPE: ............................................................................................................ 161 Y11.2424# BYPASS DIFFERENTIAL PRESSURE CONTROL VALVES - DIRECT ACTING TYPE: ............................................................................................................ 161 Y11.2430A SAFETY VALVES TO BS EN ISO 4126-1, COPPER ALLOY, SINGLE SPRING: ...................................................................................................................... 162 Y11.2430B SAFETY VALVES TO BS EN ISO 4126-1, COPPER ALLOY, DOUBLE SPRING: ...................................................................................................................... 162 Y11.2440A DRAIN COCKS, THROUGHWAY GLAND COCK: ..................................... 162 Y11.2450 DRAIN COCKS - SCREWDOWN TO BS 2879, TYPE 1: ............................. 162 Y11.2460 DRAIN COCKS - BALL TYPE: ..................................................................... 162 Y11.2470 VENT COCKS - TWO WAY GLAND COCK TYPE: ...................................... 162 Y11.2480 VENT COCKS - BALL TYPE: ....................................................................... 162

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Y11.2490 VENT COCKS - THREE WAY GLAND COCK TYPE: .................................. 162 Y11.2500A THREE WAY PLUG VALVE VENT COCKS - WRENCH OPERATED: ...... 162 Y11.2500B THREE WAY PLUG VALVE VENT COCKS - GEAR OPERATED: ............ 163 Y11.2510A AUTOMATIC AIR VENTS, FLOAT TYPE: .................................................. 163 Y11.2515A MICROBUBBLE TEMPERATURE DIFFERENTIAL DEAERATORS: ......... 163 Y11.2520A LTHW PRESSURE DIFFERENTIAL DEAERATORS: ................................ 163 Y11.2520B CHILLED WATER PRESSURE DIFFERENTIAL DEAERATORS: ............. 163 Y11.2521A CENTRIFUGAL AIR SEPARATORS: ......................................................... 163 Y11.2522A GRAVITATION DIRT SEPARATORS: ....................................................... 163 Y11.2524A MICROBUBBLE AIR AND DIRT SEPARATORS: ...................................... 163 Y11.2530# STEAM TRAPS AND ACCESSORIES: ...................................................... 164 Y11.2540# STEAM TRAPS - THERMOSTATIC TYPE, BALANCED PRESSURE: ...... 164 Y11.2550 STEAM TRAPS - THERMOSTATIC TYPE, BI-METALLIC: .......................... 164 Y11.2560# STEAM TRAPS - FLOAT TYPE: ................................................................ 164 Y11.2570# STEAM TRAPS - THERMODYNAMIC TYPE: ............................................ 164 Y11.2580 STEAM TRAPS - INVERTED BUCKET TYPE:............................................. 165 Y11.2590# STEAM TRAP FAILURE INDICATORS: ..................................................... 165 Y11.2600# SIGHT GLASSES: ...................................................................................... 165 Y11.2610A STEEL EXPANSION LOOPS: .................................................................... 165 Y11.2620 EXPANSION LOOPS - COPPER: ................................................................ 165 Y11.2630A THREADED END EXPANSION COMPENSATORS, AXIAL BELLOWS: ... 165 Y11.2630B FLANGED EXPANSION COMPENSATORS, AXIAL BELLOWS: .............. 165 Y11.2630D THREADED ENDS EXPANSION COMPENSATORS, ARTICULATED BELLOWS: ................................................................................................................... 165 Y11.2630E FLANGED EXPANSION COMPENSATORS, ARTICULATED BELLOWS: 166 Y11.2640A THREADED END HOSE COMPENSATORS: ............................................ 166 Y11.2640B FLANGED HOSE COMPENSATORS: ....................................................... 166 Y11.2650A FLANGED EPDM RUBBER FLEXIBLE CONNECTIONS UP TO 10 BAR AND 100 DEGREE C: .................................................................................................. 166 Y11.2650B THREADED END EPDM RUBBER FLEXIBLE CONNECTIONS UP TO 10 BAR AND 100 DEGREE C: .......................................................................................... 166 Y11.2650C FLEXIBLE CONNECTIONS ABOVE 100 DEGREE C: .............................. 166 Y11.2650H FLANGED CHLOROBUTYL RUBBER FLEXIBLE CONNECTIONS UP TO 10 BAR AND 60 DEGREE C: ....................................................................................... 167 Y11.2660A TERMINAL UNIT CONNECTIONS FOR HEATING SERVICES - STAINLESS STEEL: ......................................................................................................................... 167 Y11.2660B TERMINAL UNIT CONNECTIONS WITH QUICK RELEASE COUPLINGS FOR HEATING SERVICES - STAINLESS STEEL: ...................................................... 167 Y11.2660D TERMINAL UNIT CONNECTIONS FOR CHILLED WATER SERVICES - STAINLESS STEEL: .................................................................................................... 167 Y11.2660E TERMINAL UNIT CONNECTIONS WITH QUICK RELEASE COUPLINGS FOR CHILLED WATER SERVICES - STAINLESS STEEL: ......................................... 167 Y11.2660F TERMINAL UNIT CONNECTIONS FOR CHILLED WATER SERVICES - RUBBER: ..................................................................................................................... 167 Y11.2670A TEST PLUGS, SELF SEALING: ................................................................ 168 Y11.2670B TEST PLUGS, VALVE CONTROLLED: ..................................................... 168 Y11.2680A THREADED PIPELINE STRAINERS, BRONZE: ....................................... 168 Y11.2680B FLANGED PIPELINE STRAINERS, BRONZE: .......................................... 168 Y11.2680C COMPRESSION PIPELINE STRAINERS, BRONZE: ................................ 168 Y11.2680D PIPELINE STRAINERS, CAST IRON: ....................................................... 168 Y11.2690A TUNDISHES, COPPER: ............................................................................ 169

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Y11.2690B TUNDISHES, MILD STEEL, GALVANIZED: .............................................. 169 Y11.2700A GAUGES, GENERAL: ................................................................................ 169 Y11.2700B GAUGES, 150MM DIAMETER, FLUSH PANEL: ....................................... 170 Y11.2700C GAUGES, 150MM DIAMETER, DIRECT MOUNTING: .............................. 170 Y11.2710A TEMPERATURE GAUGES, GENERAL: .................................................... 170 Y11.2710B TEMPERATURE GAUGES, MERCURY IN STEEL: .................................. 171 Y11.2710C TEMPERATURE GAUGES, VAPOUR PRESSURE TO BS 5235 FOR DIRECT MOUNTING: ................................................................................................... 171 Y11.2720 PRESSURE AND ALTITUDE GAUGES: ...................................................... 171 Y11.2730 VACUUM GAUGES: .................................................................................... 171 Y11.2750A GAUGE MOUNTING BOARDS, HARDWOOD: ......................................... 171 Y11.3010A LOOSE ITEMS, KEYS FOR SPINDLE SHANK VALVES: .......................... 171 Y11.3010B LOOSE ITEMS, FOR DRAIN COCKS: ....................................................... 171 Y11.4010 INSTALLATION: ........................................................................................... 171 Y11.4020 LOCATION: .................................................................................................. 171 Y11.4025 LOCATION OF THERMOSTATIC RADIATOR VALVES: ............................. 171 Y11.4030 POSITIONING OF COMPONENTS: ............................................................. 171 Y11.4040 POSITIONING OF DOUBLE REGULATING VARIABLE ORIFICE VALVE: .. 172 Y11.4050# POSITIONING OF CONTROL COMPONENTS: ........................................ 172 Y11.4070 VALVE STUFFING BOXES: ......................................................................... 172 Y11.4080A DISCHARGE CONNECTIONS, SAFETY VALVES: ................................... 172 Y11.4080B DISCHARGE CONNECTIONS, VENT COCKS: ......................................... 172 Y11.4080C DISCHARGE CONNECTIONS, AIR BOTTLES: ........................................ 172 Y11.4080D DISCHARGE CONNECTIONS, AUTOMATIC AIR VENTS: ....................... 172 Y11.4090 EXPANSION DEVICES: ............................................................................... 172 Y11.4100 EXPANSION COMPENSATORS INSTALLATION: ...................................... 172 Y11.4110 FLEXIBLE CONNECTIONS INSTALLATION: .............................................. 172

Y20 PUMPS ............................................................................................................................ 173 Y20.1000 GENERAL .................................................................................................... 173 Y20.2010A CENTRIFUGAL PUMP - HORIZONTALLY MOUNTED BELT DRIVEN: .... 173 Y20.2010C CENTRIFUGAL PUMP - CLOSE COUPLED: ............................................ 173 Y20.2010D CENTRIFUGAL PUMP - DIRECT DRIVE IN-LINE: .................................... 174 Y20.2020A POSITIVE DISPLACEMENT PUMP - HELICAL: ........................................ 174 Y20.3020# MATCHING FLANGES: .............................................................................. 174 Y20.4010 GENERAL: ................................................................................................... 174 Y20.4020 PIPELINE CONNECTIONS: ......................................................................... 175 Y20.4040 ALIGNMENT: ............................................................................................... 175 Y20.4050 ACCESS: ..................................................................................................... 175 Y20.4060 MAINTENANCE REQUIREMENTS FOR SEWAGE PUMPS: ...................... 175

Y21 WATER TANKS/CISTERNS ............................................................................................ 176 Y21.1000 GENERAL .................................................................................................... 176 Y21.2020A SECTIONAL A1 GLASS FIBRE REINFORCED SECTIONAL TANK TO BS EN 13280: .................................................................................................................... 176 Y21.2020B SECTIONAL A2 GLASS FIBRE REINFORCED SECTIONAL TANK TO BS EN 13280: .................................................................................................................... 176 Y21.2020D SECTIONAL B WITH COVER GLASS FIBRE REINFORCED SECTIONAL TANK TO BS EN 13280: .............................................................................................. 176 Y21.2030A PREFABRICATED STEEL TANKS TO BS 417 GRADE A: ........................ 176 Y21.2030B PREFABRICATED TANKS TO BS 417 GRADE B: .................................... 176 Y21.3010# CONTENTS GAUGES: .............................................................................. 176 Y21.3020# EQUIPMENT: ............................................................................................. 176

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Y21.4010 GENERAL: ................................................................................................... 176 Y21.4020 PROTECTION AND CLEANING: ................................................................. 177 Y21.4030 INSPECTION AND ACCESS: ...................................................................... 177

Y25 CLEANING AND CHEMICAL TREATMENT .................................................................... 178 Y25.1000 GENERAL .................................................................................................... 178 Y25.2010 CLEANING AND CHEMICAL TREATMENT SPECIALIST: .......................... 178 Y25.2020A MAINS WATER ANALYSIS: ...................................................................... 178 Y25.2030A PRELIMINARY CHECKS: .......................................................................... 178 Y25.2040A PROCEDURAL PRECAUTIONS FOR CLEANING AND CHEMICAL TREATMENT: .............................................................................................................. 179 Y25.2040B PROCEDURAL PRECAUTIONS FOR CLEANING AND CHEMICAL TREATMENT INCLUDING TAKING SAMPLES: .......................................................... 179 Y25.2060A CHEMICAL INJECTION AND DOSING METHODS FOR CLOSED SYSTEMS: ................................................................................................................... 179 Y25.2060B CHEMICAL CLEANING AND DOSING METHODS FOR OPEN RECIRCULATING SYSTEMS: ..................................................................................... 179 Y25.2060C PACKAGED CHEMICAL INJECTION AND DOSING PLANT: ................... 179 Y25.2060D DOSING - CLOSED SYSTEMS: ................................................................ 179 Y25.2060E DOSING - OPEN SYSTEMS: ..................................................................... 180 Y25.2065 CHEMICALS - DOSING: .............................................................................. 180 Y25.2070A MONITORING:........................................................................................... 180 Y25.2070B SAMPLING: ............................................................................................... 180 Y25.2070C SAMPLING KITS: ...................................................................................... 180 Y25.2080A CHEMICAL PROVISION, STANDARD ARRANGEMENT: ......................... 181 Y25.2090 AVOIDANCE OF STAGNANT WATER IN PRESSURISATION UNIT EXPANSION VESSELS: .............................................................................................. 181 Y25.3010A FLUSHING: ................................................................................................ 181 Y25.3010B FLUSHING: ................................................................................................ 181 Y25.3020A TESTING AND PURGING GAS PIPEWORK - INDUSTRIAL AND COMMERCIAL INSTALLATIONS: ................................................................................ 181 Y25.3020B TESTING AND PURGING GAS PIPEWORK - SMALL LOW PRESSURE INDUSTRIAL AND COMMERCIAL INSTALLATIONS: ................................................. 181 Y25.3020C TESTING GAS PIPEWORK TO BS EN 12327: ......................................... 182 Y25.3030A CHEMICAL CLEANING AND SOLIDS REMOVAL - INHIBITED ACID: ...... 182 Y25.3030B CHEMICAL CLEANING AND SOLIDS REMOVAL - FORMULATED PRODUCTS: ................................................................................................................ 182 Y25.3035# CLEANING AND CHEMICAL TREATMENT REGIME: ............................... 182 Y25.3040 STERILIZATION - GENERAL: ...................................................................... 183 Y25.3050 STERILIZATION - MAINS WATER SYSTEM: .............................................. 183 Y25.3060 STERILIZATION - WATER STORAGE SYSTEMS: ...................................... 183 Y25.3070 WATER TREATMENT FOR STEAM BOILERS: ........................................... 183 Y25.3080 SERVICE VISITS: ........................................................................................ 183 Y25.3090 DOCUMENTATION: ..................................................................................... 184

Y51 TESTING AND COMMISSIONING .................................................................................. 185 Y51.1000 GENERAL .................................................................................................... 185 Y51.2010 PRESSURE TESTING - GENERAL: ............................................................ 185 Y51.2020 PRESSURE TESTING - WATER CIRCULATING AND SUPPLY SYSTEMS AND STEAM AND CONDENSE LINES: ....................................................................... 185 Y51.2040 PRESSURE TESTING - WATER MAINS: .................................................... 185 Y51.2050 PRESSURE TESTING - FIRE RISERS: ....................................................... 185 Y51.2055A PRESSURE TESTING - REFRIGERANT PIPEWORK, STRENGTH

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PRESSURE TEST: ...................................................................................................... 185 Y51.2055B PRESSURE TESTING - REFRIGERANT PIPEWORK, LEAK TEST: ........ 185 Y51.2055C PRESSURE TESTING - REFRIGERANT PIPEWORK, DEEP VACUUM TEST: ........................................................................................................................... 185 Y51.2065 PRESSURE TESTING - OIL PIPEWORK TO BS 5410: ............................... 185 Y51.2080 PRESSURE TESTING - SOIL, WASTE, VENTILATION, ANTI-SYPHON AND RAINWATER PIPEWORK: ........................................................................................... 185 Y51.2090 PRESSURE TESTING - UNDERSLAB DRAINAGE: .................................... 185 Y51.2100 VACUUM TESTING: .................................................................................... 186 Y51.3020 COMMISSIONING CODES: ......................................................................... 186 Y51.3030A COMMISSIONING WATER DISTRIBUTION SYSTEMS INCLUDING BSRIA PRE-COMMISSIONING CHECKLIST: ......................................................................... 186 Y51.3040A COMMISSIONING AIR DISTRIBUTION SYSTEMS INCLUDING BSRIA PRE-COMMISSIONING CHECKLIST: ......................................................................... 186 Y51.3040B COMMISSIONING VAV AIR DISTRIBUTION SYSTEMS INCLUDING BSRIA PRE-COMMISSIONING CHECKLIST: ......................................................................... 186 Y51.3060 COMMISSIONING REFRIGERATING SYSTEMS: ....................................... 187 Y51.3070 COMMISSIONING AUTOMATIC CONTROL SYSTEMS: ............................. 187 Y51.3090A INSTRUMENTS AND GAUGES: ............................................................... 187 Y51.3100A AIR SYSTEMS COMMISSIONING RECORDS TO BSRIA AG 3/89.3: ...... 187 Y51.3100B WATER SYSTEMS COMMISSIONING RECORDS TO BSRIA AG 2/89.3: 187 Y51.3110 BMS COMMISSIONING - CONTROL SYSTEM SPECIFICATION DETAILS REQUIRED FOR COMMISSIONING: .......................................................................... 187 Y51.3120 BMS COMMISSIONING - PRE-COMMISSIONING: ..................................... 188 Y51.3130A BMS COMMISSIONING - PLANT READY FOR CONTROL SYSTEM COMMISSIONING:....................................................................................................... 189 Y51.3140 BMS COMMISSIONING - CONTROL SYSTEM REQUIREMENTS FOR PLANT COMMISSIONING: .......................................................................................... 190 Y51.3150 BMS COMMISSIONING: .............................................................................. 190 Y51.3160 COMMISSIONING MANAGEMENT ............................................................ 190 Y51.3170 COMMISSIONING PLAN ............................................................................. 190 Y51.3180 TRAINING .................................................................................................... 191 Y51.4010 SYSTEM PERFORMANCE TESTING: ......................................................... 191 Y51.4015 TESTING OF RESIDENTIAL VENTILATION SYSTEMS: ............................. 191 Y51.4020A ENVIRONMENTAL TESTS, ARTIFICIAL LOADS: ..................................... 191 Y51.4020B ENVIRONMENTAL TESTS, AMBIENT AIR QUALITY ............................... 191 Y51.4030 RECORDERS: ............................................................................................. 191 Y51.4040 COMMISSIONING TERMINOLOGY: ........................................................... 191

Y52 VIBRATION ISOLATION MOUNTINGS ........................................................................... 192 Y52.1000 GENERAL .................................................................................................... 192 Y52.1040 LOCKING FACILITY: ................................................................................... 192 Y52.2010A SYNTHETIC MATERIAL CONFIGURED MAT MOUNTINGS: ................... 192 Y52.2010B NATURAL RUBBER CONFIGURED MAT MOUNTINGS: .......................... 192 Y52.2010C HIGH TEMPERATURE CONFIGURED MAT MOUNTINGS: ..................... 192 Y52.2010D RESILIENT MAT MOUNTINGS: ................................................................ 192 Y52.2010E PAD MOUNTINGS: .................................................................................... 192 Y52.2020A SYNTHETIC RUBBER TURRET COMPRESSION MOUNTINGS: ............. 192 Y52.2020B NEOPRENE TURRET COMPRESSION MOUNTINGS: ............................ 192 Y52.2030 SPRING COMPRESSION MOUNTINGS: .................................................... 193 Y52.2040 CAPTIVE SPRING MOUNTINGS: ................................................................ 193 Y52.2050A SYNTHETIC RUBBER HANGERS, TURRET COMPRESSION: ................ 193

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Y52.2050B NEOPRENE HANGERS, TURRET COMPRESSION: ................................ 193 Y52.2060 SPRING COMPRESSION HANGERS: ........................................................ 193 Y52.2070A SYNTHETIC RUBBER HANGERS, COMBINED TURRET/SPRING COMPRESSION: ......................................................................................................... 193 Y52.2070B NEOPRENE HANGERS, COMBINED TURRET/SPRING COMPRESSION: ..................................................................................................................................... 193 Y52.2080 HORIZONTALLY RESTRAINED SPRING MOUNTINGS: ............................ 194 Y52.2090# INERTIA BASES: ....................................................................................... 194 Y52.2090A CONCRETE/STEEL FORMWORK INERTIA BASES: ................................ 194 Y52.2090B WELDED STEEL FRAME INERTIA BASES: ............................................. 194 Y52.2100 VIBRATION ISOLATION HOSES: ................................................................ 194 Y52.2110A NATURAL CORKWOOD PIPEWORK NOISE VIBRATION ISOLATION: ... 194 Y52.2110B RECONSTITUTED CORKWOOD PIPEWORK NOISE VIBRATION ISOLATION: ................................................................................................................. 194 Y52.2110C RUBBER MATTING PIPEWORK NOISE VIBRATION ISOLATION: .......... 194 Y52.2120A SPONGE FOAM PIPE WALL AND RISER SEALS: ................................... 194 Y52.2120B MINERAL FIBRE PACKING PIPE WALL AND RISER SEALS: ................. 194 Y52.3040 HORIZONTALLY RESTRAINED SPRING MOUNTINGS: ............................ 194

Y54 IDENTIFICATION - MECHANICAL .................................................................................. 196 Y54.1000 GENERAL .................................................................................................... 196 Y54.2010 PIPEWORK IDENTIFICATION: .................................................................... 196 Y54.2020 DUCTWORK IDENTIFICATION: .................................................................. 196 Y54.2030B PLANT AND EQUIPMENT IDENTIFICATION, LAMINATED PLATES: ...... 197 Y54.2035 GRAPHICAL SYMBOLS FOR USE ON EQUIPMENT IN ACCORDANCE WITH BS EN 80416:..................................................................................................... 197 Y54.2040 VALVE AND COCK IDENTIFICATION: ........................................................ 197 Y54.2070 AIR VOLUME REGULATING AND CONTROL DAMPER IDENTIFICATION: ..................................................................................................................................... 197 Y54.2080 INSTRUMENT IDENTIFICATION: ................................................................ 197 Y54.2090 DANGER AND WARNING NOTICES: .......................................................... 197 Y54.2100A SYSTEM IDENTIFICATION INSTALLATION CHARTS, PERSPEX GLAZED FRAME: ........................................................................................................................ 198 Y54.2100B SYSTEM IDENTIFICATION INSTALLATION CHARTS, ACRYLIC GLAZED HARDWOOD FRAME: ................................................................................................. 198

Y72 CONTACTORS AND STARTERS ................................................................................... 199 Y72.1000 GENERAL .................................................................................................... 199 Y72.1010A 3 PHASE SUPPLY: .................................................................................... 199 Y72.1010B SINGLE PHASE ELECTRICAL SUPPLY: .................................................. 199 Y72.2130A MOTOR STARTERS - MOTORS BELOW 0.37 KW: .................................. 199 Y72.2130B MOTOR STARTERS - MOTORS OF 0.37KW AND ABOVE: ..................... 199 Y72.2150 DIRECT-ON-LINE MOTOR STARTERS: ..................................................... 199 Y72.2160 STAR DELTA MOTOR STARTERS: ............................................................ 199 Y72.2190A CONTROL PANEL INVERTOR MOTOR STARTERS: ............................... 199 Y72.2200 AUTOMATIC CHANGEOVER FOR RUN/STANDBY DUTY - SINGLE POWER SUPPLY: ...................................................................................................................... 200 Y72.2210 AUTOMATIC CHANGEOVER FOR RUN/STANDBY DUTY - DUAL POWER SUPPLY: ...................................................................................................................... 200 Y72.3010 INSTALLATION: ........................................................................................... 200

Y90 FIXING TO BUILDING FABRIC ....................................................................................... 201 Y90.1000 GENERAL .................................................................................................... 201 Y90.2010 STANDARDS: .............................................................................................. 201

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Y90.2020 PLUGS: ........................................................................................................ 201 Y90.2030 SCREWS: .................................................................................................... 201 Y90.2080 NON-PENETRATIVE SUPPORT SYSTEMS FOR ROOF MOUNTED EQUIPMENT: ............................................................................................................... 201 Y90.3010 DRILLING: .................................................................................................... 201 Y90.3050 FIXING TO TIMBER RAILS: ......................................................................... 201 Y90.3060A FIXING TO HOLLOW STUD/TILE/BLOCK WALLS: ................................... 201 Y90.3070A FIXING TO CONCRETE, BRICKWORK OR BLOCKWORK: ..................... 202 Y90.3080A FIXING TO METALWORK: ........................................................................ 202 Y90.3090A FIXING TO STRUCTURAL STEELWORK AND CONCRETE STRUCTURES: ..................................................................................................................................... 202 Y90.3100# NON-PENETRATIVE SUPPORT SYSTEMS FOR ROOF MOUNTED EQUIPMENT: ............................................................................................................... 202

Y91 PAINTING AND ANTI-CORROSION TREATMENTS ...................................................... 203 Y91.1000 GENERAL: ................................................................................................... 203 Y91.2010A PAINT MATERIALS: .................................................................................. 203 Y91.2020 PAINT QUALITY: ......................................................................................... 203

Y92 MOTOR DRIVES - ELECTRIC ........................................................................................ 204 1000 GENERAL ........................................................................................................... 204 1040A MANUFACTURER FITTED SURGE SUPPRESSORS: .................................... 204 1050A MANUFACTURER FITTED TRANSIENT SUPPRESSORS: ............................. 204 2010A STANDARD OPERATING CONDITIONS: ........................................................ 204 2020 MOTORS - GENERAL: ........................................................................................ 204 2025A CLASS 1 MOTOR EFFICIENCY: ...................................................................... 205 2030 SLIDE RAILS: ...................................................................................................... 205 2040 PLINTHS: ............................................................................................................ 205 2050A MOTOR RATINGS - UP TO AND INCLUDING 0.75KW: ................................... 205 2050B MOTOR RATINGS - ABOVE 0.75KW UP TO AND INCLUDING 4KW: ............. 205 2050C MOTOR RATINGS - ABOVE 4KW SQUIRREL CAGE, DRIP-PROOF: ............. 205 2050D MOTOR RATINGS - ABOVE 4KW WOUND ROTOR, DRIP PROOF: ............... 205 2050E MOTOR RATINGS - ABOVE 4KW SQUIRREL CAGE, TOTALLY ENCLOSED: ..................................................................................................................................... 205 2050F MOTOR RATINGS - ABOVE 4KW WOUND ROTOR, TOTALLY ENCLOSED: . 205 2050G MOTOR RATINGS - ABOVE 4KW SQUIRREL CAGE, SMOKESPILL: ............ 206 2050H ABOVE 4KW SQUIRREL CAGE, ENERGY EFFICIENT DESIGN: ................... 206 2060A MOTORS - OVER TEMPERATURE PROTECTION, THERMISTORS: ............. 206 2070A INDIRECT DRIVES WITH TOOTHED BELTS: .................................................. 206 2070B INDIRECT DRIVES WITH FLAT BELTS: .......................................................... 206 2080A DIRECT COUPLED DRIVES: ........................................................................... 206 2085 VARIABLE SPEED DRIVE: ................................................................................. 206 2090A GUARDS: .......................................................................................................... 206 BS EN 60034-2-1:2007 ................................................................................................ 207

R10 - RAINWATER PIPEWORK/GUTTERS


R10 RAINWATER PIPEWORK/GUTTERS THIS WORK SECTION SHALL BE READ IN CONJUNCTION WITH WORK SECTION R11 – FOUL DRAINAGE ABOVE GROUND. CLAUSES COMMON TO THE WORK SECTIONS ARE NOT NECESSARILY REPEATED HERE. PART 1 SYSTEM OBJECTIVES 100.010 PERFORMANCE OBJECTIVES 1. Rainfall run-off on the roof of the building shall be collected and drained through

fulbora outlets and down pipes to the nearest street drain channel. 2. As much as possible, vertical rainwater pipes shall not be embedded in any of the

structural members. 100.020 DESIGN PARAMETERS The system is designed for a rainfall intensity of 220mm/hr 100.030 SYSTEM DESCRIPTION 1. In coordination with the Bank, the rainwater disposal has been scheduled as follows:

• On the upper roof, the runoff shall be channelled through gutters and outlets. Rainwater down pipes shall be installed

• The rainwater pipes shall discharge into the perimeter drains.

2. Where pipes have to run horizontal in occupied spaces drip trays shall be provided

over the entire length of the pipe run.



PART 3 SPECIFICATION CLAUSES SPECIFIC TO R10 300.000 PRODUCTS/MATERIALS • 300.090 ROOF OUTLETS: • Manufacturer and reference Fulbora • Or approved equivalent. • Material • Plastic. • Gratings • Domical. • Shape of gratings • Circular. • Square.

• 300.110 BALCONY OUTLETS: • Manufacturer and reference Fulbora • Or approved equivalent.

• Standard • BS EN 1253-1 • Material • Plastics.

310.000 WORKMANSHIP 310.010 INSTALLATION GENERALLY: Install in accordance with BS 8000-13 and manufacturer's recommendations to ensure complete discharge of rainwater from building without leaking. • Handle, store and securely fix all products and accessories in accordance with manufacturer's recommendations. Inspect components before fixing and reject any which are defective. Ensure cut ends are clean and square with burrs removed. • Where not indicated otherwise use plated, sherardized, galvanized or non-ferrous fastenings, suitable for purpose and background, and compatible with material being fixed. Allow for thermal and building movement when fixing and jointing. 310.020 BEFORE COMMENCING WORK: Before commencing work ensure that below ground drainage is ready to receive rainwater or that the discharge can be dispersed by approved means to prevent damage or disfigurement of the building fabric. Ensure any specific painting of surfaces which will be concealed or otherwise inaccessible, is completed. 310.030 GUTTERS: Set out to a true line and even gradient to ensure no ponding or backfall. Position high points of gutters as close as practical to roof and low points not more than 50mm below roof. Position outlets to align with connections to below ground drainage, unless otherwise indicated on drawings. Overlap joints in direction of fall and seal as specified to make watertight. Ensure that roofing underlay is dressed into gutter.



310.040 GUTTER BRACKETS: Fix securely at specified centres and at all joints in gutters, with additional brackets near angles and outlets. 310.050 SEALING JOINTS IN GUTTERS: Spread jointing compound evenly over surface of socket. Tighten fixings to squeeze out some compound, but do not over-compress. Remove surplus squeezed out compound and neatly clean off. 310.060 RAINWATER HEADS AND OUTLET PIPES FROM GUTTERS: Fix suitable domical cages. 310.070 CONNECTION TO EXISTING GUTTERS: Provide and fix all necessary and proper fittings for the purpose of connecting to existing gutters. Make good and leave the work in a watertight condition. 310.080 GUTTER TEST: Block all outlets, fill gutters to overflow level and closely inspect for leakage. 310.090 STORAGE - PIPES, GUTTERS AND FITTINGS: Store pipes, gutters and fittings under cover and clear of the ground. 310.100 STACKING PIPES AND GUTTERS: Stack pipes and gutters on level surface. Do not rest pipes on their sockets. Securely stake end pipes in bottom row to prevent collapse of stack. Comply with manufacturer's recommendations. 310.110 STORAGE - ELASTOMERIC JOINTING RINGS: Store elastomeric jointing rings in their delivery bags or protective containers. Do not expose to sunlight. 310.120 MAKING GOOD: Make good damage to coatings or recoat. 310.130 ACCESS POINTS: Provide rodding and access points at all changes of direction to enable whole system to be maintained. Provide square door type access points as indicated on drawings at foot of all rainwater stacks, and at other locations on the stacks as indicated on the drawings.. Fit covers, caps, etc. as work proceeds to prevent ingress of dirt and building materials. 310.140 RAINWATER OUTLETS: Fix a grating or cage to restrict entry of solids to system. 310.150 ROOF AND BALCONY OUTLETS: Ensure that outlets are securely fixed before connecting pipework. Ensure junctions between outlets and pipework can accommodate all movement in roof decking and pipework.



310.180 CONNECTIONS BETWEEN PIPES OF DIFFERENT MATERIALS: • Plastic • Connect plastics pipework to pipework of other materials using approved connectors and methods in accordance with manufacturer's recommendations, to form a watertight joint. • Cast iron

• Galvanized steel • Connect galvanized steel pipework to cast iron sockets with bitumenised yarn and molten lead, lead wool or an approved cold caulking compound, and as indicated by the galvanized steel manufacturer's recommendations. • Connect galvanized steel pipework to clay/concrete sockets with bitumenised yarn and 1:3 cement: sand mortar, neatly finished, to form a watertight joint, and as indicated by the galvanized steel manufacturer's recommendations.

320.040 DOWNPIPE TERMINATION: • Terminate downpipes at finished floor level. • Terminate downpipes at first manhole. • 320.070 PIPEWORK: • Material • Black high performance polyethylene (PE100) pipe to DIN 8075 and DIN 19535, PN 5. • Galvanised steel to BS EN 10255.

• 320.080 RAINWATER OUTLETS: • Manufacturer and reference Fulbora • Or approved equivalent. • Material • Plastic • Gutter material • Concrete

• Provide all outlets with leaf guards. 320.100 WORKMANSHIP: Fittings

Install eccentric reducers in horizontal flows so that the crown of the pipe is retained. Use T pieces with branches at 45o in direction of flow.

Joints • Ensure joints are capable of resisting longitudinal forces without sliding apart. • Ensure joints are restrained to prevent relative movement. Jointing

Make joints in accordance with manufacturer's recommendations Outlets

Ensure that outlets are fixed before connecting pipework. Position outlets to align with high level collection pipes. Connect the outlet spigot to the pipework in accordance with manufacturer's instructions using a proprietary connection.

320.110 PIPEWORK INSTALLATION: Fix high level collector pipes and downpipes in accordance with manufacturer's recommendations. • Install polyethylene pipework using rail system to constrain thermal movement. Support horizontal or near-horizontal sections of rainwater outlet tail pipe greater than 1.5 metres long. Use additional supports on pipe collars, particularly at changes in direction. Do not make changes in direction in pipe runs unless they are shown on the drawing or



otherwise approved. Provide rodding eyes as indicated. Ensure all pipe hangers, beam clamps, bolts, nuts and fittings used in the pipe support system are either hot dip galvanised or bright zinc phosphate finish. Fit an isolation strip within all supports to separate dissimilar metals. 320.120 TESTING: Inform CA in advance to give a reasonable opportunity to observe tests. Check all sections of installation are free from obstruction and debris before testing. Provide assistance and apparatus for testing. • Carry out tests in accordance with BS EN 12056. • Air test

• Water test Remedy all defects without delay and re-test as instructed.



BS APPENDIX BS 8000-13:1989 Workmanship on building sites. Part 13 Code of practice for above ground drainage and sanitary appliances BS EN 10255:2004 Non-alloy steel tubes suitable for welding or threading. Technical delivery conditions BS EN 1253-1:2003 Gullies for buildings. Part 1 Requirements

R11 - FOUL DRAINAGE ABOVE GROUND


R11 FOUL DRAINAGE ABOVE GROUND PART 1 SYSTEM OBJECTIVES 100.010 PERFORMANCE OBJECTIVES A complete system of soil, waste and vent pipe shall be provided to receive discharge from all the sanitary wares, the kitchen and all ablutionary fittings and connect to the underground drainage system 100.020 DESIGN PARAMETERS The system is designed in accordance with the following:

• BS 8000 Part 13: Code of practice for Above Ground Drainage and Sanitary Wares • The Plumbing Guide of the Institute of Plumbing

100.030 SYSTEM DESCRIPTION 1. A system of soil and waste collection from all sanitary fittings and ablutionary units shall

be provided to connect to the sewerage system. The installation shall be adequately vented. Where plastic pipework passes through fire compartment floors and walls, intumescing fire sleeves to BS 476 'Fire tests on building materials and structures' shall be fitted.

2. Where possible, access shall be provided at the foot of all stacks and change in direction

to enable all sections to be rodded to clear obstructions. 3. Drainage disposal shall be by means of a sewage treatment plant. The sewer shall be

pumped to municipal sewer line for the treatment. 4. Alternative private sewage treatment plant shall provided in the absence of municipal

sewer line at the proposed site. 5. The waste from the kitchens shall be taken through grease interceptors. 6. Where pipes have to run horizontal in occupied spaces drip trays shall be provided over

the entire length of the pipe run. 7. Adequate ventilation shall be provided for the system.



PART 2 SELECTION SCHEDULES FOR REFERENCE SPECIFICATIONS 210.000 PIPELINES 210.010 GENERAL: • Comply with work section general clauses reference Y10.1000 and those detailed below.

210.015 SANITARY FITTINGS: • Comply with work section general clauses reference Y10.1000 and those detailed below. • Supply pipes and fittings as schedule reference N13-Sanitary appliances and fittings • As schedule reference

• 210.020 STEEL PIPES AND FITTINGS: • Fluid conveyed rainwater • Carbon steel pipes to BS EN 10255 • Medium, galvanized - reference Y10.2010C

• Carbon steel fittings to BS EN 10255 • Reference Y10.2020A • Carbon steel fittings to BS EN 10253-1 or BS EN 10253-2. • Medium weight - reference Y10.2060B • Carbon & stainless steel compression couplings to BS 4368-1- reference Y10.2200# • Jointing materials

• Screwed joints to BS 21 and BS EN 10226-1. • Paste and hemp and PTFE tape - reference Y10.3030A • PTFE tape - reference Y10.3030B • Where chemical cleaning is required - reference Y10.3030C

• 210.050 PLASTICS PIPES AND FITTINGS: • Application - Soil and waste • Manufacturer - Durapipe • Or approved equivalent

• Plastic piping systems, buried and above ground for water and other fluids (not potable water) • Pipes, fittings and joints to BS EN 15014 - reference Y10.2442

• PVC-U to BS 4514 • Reference Y10.2480A

• PVC-U fittings to BS 4514 • Reference Y10.2490A

• Plastics piping systems with structured-wall pipes for soil and waste discharge within the building structure • Pipes to BS EN 1453 - reference Y10.2495A

• Polyethylene piping systems for underground drainage and sewerage to BS EN 12666-1 • Reference Y10.2500A

• Compression fittings for polyethylene • Reference Y10.2510A

• Polypropylene piping systems for underground drainage and sewerage to BS EN 14758 • Reference Y10.2552A

• Plastics piping systems for non-pressure underground drainage and sewerage - structured wall piping systems of PVC-U, PP and PE, to BS EN 13476 • Pipes and fittings with smooth internal and external surface, Type A, to BS EN 13476-2 - reference Y10.2553A



• Pipes and fittings with smooth internal and profiled external surfaces, Type B, to BS EN 13476-3 - reference Y10.2553B

• Plastics piping systems for soil and waste discharge within the building structure • Pipes to BS EN 1451-1 and BS EN 15012 - reference Y10.2545A • Fittings to BS EN 1451-1 and BS EN 15012 - reference Y10.2555A • PVC-U pipes to BS EN 1329-1 - reference Y10.2580A

• PVC-U fittings to BS EN 1329-1 - reference Y10.2585A • Special materials • GRP to BS EN 1796 - reference Y10.2760 • GRP-UP to BS EN 1796 and BS EN 14364 - reference Y10.2772# • Jointing materials • Jointing materials for plastics pipes to BS 7291 • Pushfit - reference Y10.3095B • Solvent cement - reference Y10.3095C

• Jointing equipment for polybutylene pipes • Compression fittings - provide the equipment recommended by the manufacturer to carry out compression jointing on polybutylene pipes and fittings. • Socket fusion - provide the equipment recommended by the manufacturer to carry out socket fusion jointing on polybutylene pipes and fittings. • Electrofusion - provide the equipment recommended by the manufacturer to carry out electrofusion jointing on polybutylene pipes and fittings.

• Reference Y10.3097# • 210.070 PIPEWORK ACCESSORIES: • Wall, floor and ceiling masking plates • Chromium plated - reference Y10.3190A. • Plastic - reference Y10.3190B

• Pipework support - reference Y10.4210 • 210.080 GENERAL WORKMANSHIP • Appearance - reference Y10.4010 • Spacing - reference Y10.4020 • Gradients - reference Y10.4030 • Air venting requirements • Air bottles - reference Y10.4040A • Automatic air vents - reference Y10.4040B

• Drain requirements - reference Y10.4050 • Expansion and contraction - reference Y10.4060 • Pipe fittings • Bends/swept tees - reference Y10.4070A

• Elbows/square tees - reference Y10.4070B • Pipes through walls and floors - reference Y10.4110 • Pipes through walls and floors - fire stopping - reference Y10.4110# • Pipe sleeves • Reference Y10.4120A • Insulation carried through - reference Y10.4120B

• Pipe sleeves through fire barriers - reference Y10.4125 • Connect to equipment. • Use distribution headers. • Temporary plugs, caps and flanges • Reference Y10.4150A.



• Flanged joints general - reference Y10.4160 • Dissimilar metals - reference Y10.4170 • Pipe rings and clips - reference Y10.4180

• Pipe supports - reference Y10.4205 • Support spacing - reference Y10.4220 • Isolation and regulation • Reference Y10.4230A

• Maintenance and renewal - reference Y10.4240 • Clean by removing cement and clean off all pipework and brackets. • Non-ferrous components - thoroughly clean and degrease. • 210.090 WORKMANSHIP, STEEL PIPEWORK: • Welding, general • Class 1 - reference Y10.5010A

• Welded joints - reference Y10.5020 • Painting welded joints - reference Y10.5030 • Screwed joints - reference Y10.5050 • Mechanical joints - reference Y10.5060 • Pipework painting - reference Y10.5090

• 210.120 WORKMANSHIP, PLASTIC PIPES: • Solvent welded joints, PVC - reference Y10.8010 • Fusion joints, PE - reference Y10.8020 • Mechanical fittings, PE - reference Y10.8030 • Anchors, PVC - reference Y10.8040 • Jointing polybutylene pipes and fittings - reference Y10.8050 • Plastic pipes and fittings with secondary containment - reference Y10.8070. • 210.130 WORKMANSHIP: • Protection of underground pipework - reference Y10.9030

• Protection of buried pipes • Unmarked - reference Y10.9040A • Marked - reference Y10.9040B

• Protection of pipes in screed • Wrap with two protective tapes before laying.

• Sheath with PVC • Steelwork painting • Reference Y10.9120A



211.000 PIPELINE ANCILLARIES 211.010 GENERAL: • Comply with work section general clauses reference Y11.1000 and those detailed below. • 211.030 STOP VALVES: • Manufacturer and reference Crane • Or approved equivalent • Service fluid

• Foul water • Kitemark certified. • Pipe material • To suit plastic tube. • Handwheel operated gate type to BS EN 1984

• Threaded - reference Y11.2070D • Sluice type to BS 5163-2 • Key operated type A - reference Y11.2110A

• Flanged to BS EN 1092-2, PN • Polyethylene valves to BS EN 13244-5 - reference Y11.2125# • 211.130 FLOAT OPERATED VALVES: • Manufacturer and reference Crane • Or approved equivalent • Service fluid

• foul water • Kitemark certified. • To BS 1212 • Piston type 1 • Copper float - reference Y11.2280A • Plastic float - reference Y11.2280B

• Float BS reference • Spherical • 211.170 CHECK VALVES: • Manufacturer and reference Crane • Or approved equivalent • Kitemark certified. • Pipe material • To suit plastic tube.

• Swing check type to BS 5154 • Screwed to BS 21 and BS EN 10226-1 - reference Y11.2320A

• Flanged to BS EN 1092-3 - reference Y11.2320B 211.180 WORKMANSHIP: • Installation - reference Y11.4010

• Location - reference Y11.4020 • Provide outlets of vent cocks with discharge pipes. • Discharge connections • Safety and Relief valves - reference Y11.4080A



• Vent cocks - reference Y11.4080B • Air bottles - reference Y11.4080C

• Automatic air vents - reference Y11.4080D • 211.220 VENT COCKS:

• Kitemark certified. • Ball type - reference Y11.2480

• 211.230 AUTOMATIC AIR VENTS:

• Float type • Reference Y11.2510A



220.000 PUMPS 220.010 GENERAL:

• Comply with work section general clauses reference Y20.1000 and those detailed below. • 220.030 PUMP: • Application - Lift stations • Manufacturer and reference Armstrong Pullen • Or approved equivalent

Provide twin pump set with auto-changeover. 220.060 WORKMANSHIP: General - reference Y20.4010 Pipeline connections - reference Y20.4020 Mount motors and pumps for belt drive pumps resiliently. Alignment - reference Y20.4040 Access - reference Y20.4050 • Maintenance requirements for sewage pumps

Reference Y20.4060



225.000 CLEANING AND CHEMICAL TREATMENT 225.010 GENERAL: • Comply with work section general clauses reference Y25.1000 and those detailed below.

• 225.060 CHEMICAL INJECTION AND DOSING METHODS:

• Method of introducing chemicals into closed systems - reference Y25.2060A • Method of introducing chemicals into open recirculating systems - reference Y25.2060B • Packaged plant - reference Y25.2060C • Dosing for closed systems - reference Y25.2060D • Dosing for open systems - reference Y25.2060E • Dosing chemicals - reference Y25.2065 225.150 DOCUMENTATION: • Reference Y25.3090



251.000 TESTING AND COMMISSIONING OF MECHANICAL SERVICES 251.010 GENERAL: • Comply with work section general clauses reference Y51.1000 and those detailed below. • 251.030 STATIC TESTING: • Pressure testing • General - reference Y51.2010 • Underground pipework • Soil, waste, ventilation, anti-syphon and rainwater pipework - reference Y51.2080

• Underslab drainage - reference Y51.2090 • Provide an air compressor and subject the pipework to sectional testing by air at low pressure (not exceeding .5 bars) before commencing any flushing or testing with water. • On completion of all cleaning, flushing and air testing operations, recharge each system with clean water and subject them to sectional hydraulic tests of one and a half times the working pressure. • There is to be no loss of pressure for a period of not less than 30 minutes for each test. • 251.040 COMMISSIONING: • Commissioning codes - reference Y51.3020

• Instruments and gauges • Reference Y51.3090A

• BMS commissioning • Control system specification details required for commissioning - reference Y51.3110 • Pre-commissioning - reference Y51.3120 • Plant ready for control system commissioning • Reference Y51.3130A

• Control system requirements for plant commissioning - reference Y51.3140 • Commissioning - reference Y51.3150



254.000 IDENTIFICATION - MECHANICAL 254.010 GENERAL: Comply with work section general clauses reference Y54.1000 and those detailed below. • Provide identification - mechanical as specified in work section 254.020 PIPEWORK IDENTIFICATION: Reference Y54.2010 254.045 GRAPHICAL SYMBOLS FOR USE ON EQUIPMENT IN ACCORDANCE WITH BS EN 80416: Reference Y54.2035 254.050 VALVE AND COCK IDENTIFICATION: Reference Y54.2040 254.090 INSTRUMENT IDENTIFICATION: Reference Y54.2080 254.100 DANGER AND WARNING NOTICES: Reference Y54.2090 • 254.110 SYSTEM IDENTIFICATION INSTALLATION CHARTS: • Perspex sheet glazing with frame - reference Y54.2100A



290.000 FIXING TO BUILDING FABRIC 290.010 GENERAL: • Comply with work section general clauses reference Y90.1000 and those detailed below. • 290.020 FIXINGS: • Standards - reference Y90.2010 • Plugs - reference Y90.2020 • Screws - reference Y90.2030

• Non-penetrative support systems - reference Y90.2080 • 290.030 WORKMANSHIP: • Drilling - reference Y90.3010 • Fixing to timber rails - reference Y90.3050 • Fixing to hollow stud/tile/block wall • Reference Y90.3060A

• Fixing to concrete, brickwork or block work • Reference Y90.3070A

• Fixing to metalwork • Reference Y90.3080A

• Fixing to structural steelwork and concrete structures • Reference Y90.3090A

• Non-penetrative support systems for roof mounted equipment - reference Y90.3100#



291.000 OFF-SITE PAINTING AND ANTI-CORROSION TREATMENT 291.010 GENERAL • Comply with work section general clauses reference Y91.1000 and those detailed below. • 291.020 PAINT MATERIALS: • Paint materials • Reference Y91.2010A

• Paint quality - reference Y91.2020



PART 3 SPECIFICATION CLAUSES SPECIFIC TO R11 300.000 PRODUCTS/MATERIALS • 300.020 FLOOR OUTLETS: • Manufacturer and reference -Durapipe • Or approved equivalent.

• Standard • BS EN 1253-1 • Material • Copper alloy.

• 300.030 TRAPS: • Manufacturer and reference -Durapipe • Or approved equivalent.

• Appliance • W.C. pan • Slop hopper or flush sink • Urinal • Sink • Wash basin • Wash fountain or trough • Bidet • Bath • Shower unit • Fountain • Sanitary macerator • Water cooler

• Type • Integral with appliance. • Bottle. • Resealing. • Tubular.

• Form • P. • S.

• Standard • Plastic to BS EN 274-1, BS EN 274-2, BS EN 274-3.

• Copper alloy • Chromium plated.

• 300.130 PLASTICS WC PAN CONNECTOR: • Manufacturer and reference -Durapipe • Or approved equivalent.

• For horizontal outlet and shrouded pans. • BS 5627 for pans to BS EN 33, BS EN 37, BS EN 997. • Figure 1 'S' or turned 'P' traps.

• Figure 2 'P' traps new installations.



• 300.150 SINGLE STACK PLUMBING: • Ensure that there is a change of gradient at stack connections. Use swept branches on small diameter pipes. Use swept inlet or 45 degree branch connections for pipe 75mm diameter or over. 310.000 WORKMANSHIP 310.010 PERFORMANCE CRITERIA: Install pipework fittings and accessories to ensure that:- • appliances drain quickly, quietly and completely at all times without nuisance or risk to health. • discharge is conveyed without cross flow, backfall, leakage or blockage. • air from drainage system does not enter building. • pressure fluctuations in pipework do not vary by more than plus or minus 38mm water gauge and traps retain a water seal of not less than 25mm. • system can be adequately tested, cleaned and maintained. 310.020 ROUTES: Ensure pipe routes are shortest practicable, with as few bends as possible and no bends in wet portion of soil stacks, unless indicated otherwise on drawings. 310.030 COATED PIPES: Make good damaged coatings and cut ends, or recoat, as recommended by manufacturer. 310.040 INSTALLATION GENERALLY: • Install pipes, fittings and accessories in accordance with BS EN 12056-2 and manufacturer's recommendations. Inspect components carefully before fixing and reject any which are defective. Ensure cut ends of pipes to be clean and square with burrs removed. Allow for thermal and building movement when jointing and fixing. Form junctions using fittings intended for the purpose, ensuring that jointing material does not project into bore of pipes, fittings and appliances. Avoid contact between dissimilar metals and other materials which would result in electrolytic corrosion. Provide access covers and cleaning eyes as necessary in convenient locations, to permit adequate testing and cleaning of pipework. Prevent entry of foreign matter into any part of system by sealing openings during construction. Fit all access covers and cleaning eyes as work proceeds. 310.050 CONNECTIONS BETWEEN PIPES OF DIFFERENT MATERIALS: • Plastic • Connect plastics pipework to pipework of other materials using approved connectors and methods in accordance with plastics pipework manufacturer's recommendations, to form a watertight joint.

310.060 FOOT OF PIPE STACKS: Fix cast iron rest bends supported on brick-work or concrete bases where indicated on drawings.



310.070 WASTES: Bed in waterproof jointing compound and fix with resilient washer between appliance and backnut. 310.080 WASTE CONNECTORS: Join to traps as manufacturer's recommendations. 310.090 WC PANS: • Plastic • Connect all soil pipe spigots with plastic connectors in accordance with manufacturer's recommendations.

310.100 TRAP TEST REQUIREMENTS: Ensure there is a retention of a minimum of 25mm water seal in every trap, and that no air is blown through the trap seal when performance is tested. 310.110 ACCESS POINTS: Provide rodding and access points at all changes of direction to enable whole system to be maintained. Provide square door type access points as indicated on drawings at foot of all soil and ventilation pipes and at any subsequent floor levels as indicated on the drawings and/or as directed by building control. Where practicable, locate access points and horizontal anti-syphon pipes above fitment flood level a minimum of 1200mm above the respective finished floor level. In general make WC connections to drain points and soil pipes via flexible connectors.



BS APPENDIX BS 21:1985 Specification for pipe threads for tubes and fittings where pressure-tight joints are made on the threads (metric dimensions).

Partially superseded by BS EN 10226-1:2004 BS 4368-1:1998 Metallic tube connectors for fluid power and general use. Part 1 Split collet compression fittings BS 4514:2001 Unplasticized PVC soil and ventilating pipes of 82.4mm minimum mean outside diameter, and fittings and accessories of 82.4mm and of other sizes. Specification BS 5154:1991 Specification for copper alloy globe, globe stop and check, check and gate valves.

Partially replaced by BS EN 12288:2003 BS 5627:1984 Specification for plastics connectors for use with horizontal outlet vitreous china WC pans BS EN 10226-1:2004 Pipe threads where pressure tight joints are made on the threads. Part 1 Taper external threads and parallel internal threads. Dimensions, tolerances and designation BS EN 10255:2004 Non-alloy steel tubes suitable for welding or threading. Technical delivery conditions BS EN 1092-2:1997 Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated. Part 2 Cast iron flanges BS EN 1092-3:2003 Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated. Part 3 Copper alloy flanges BS EN 12056-2:2000 Gravity drainage systems inside buildings. Part 2 Sanitary pipework, layout and calculation BS EN 1253-1:2003 Gullies for buildings. Part 1 Requirements BS EN 1329-1:2000 Plastics piping systems for soil and waste discharge (low and high temperature) within the



building structure. Unplasticized poly(vinyl chloride) (PVC-U). Specifications for pipes, fittings and the system BS EN 1451-1:2000 Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure. Part 1 Polypropylene (PP). Specifications for pipes, fittings and the system BS EN 1984:2000 Industrial valves. Steel gate valves BS EN 274-1:2002 Waste fittings for sanitary appliances. Part 1 Requirements BS EN 274-2:2002 Waste fittings for sanitary appliances. Part 2 Test methods BS EN 274-3:2002 Waste fittings for sanitary appliances. Part 3 Quality control BS EN 33:2003 Pedestal W.C. pans with close-coupled flushing cistern. Connecting dimensions BS EN 37:1999 Pedestal W.C. pans with independent water supply. Connecting dimensions BS EN 997:2003 WC pans and WC suites with integral trap

R12 - DRAINAGE BELOW GROUND


R12 DRAINAGE BELOW GROUND THIS WORK SECTION SHALL BE READ IN CONJUNCTION WITH WORK SECTION R11 – FOUL DRAINAGE ABOVE GROUND. CLAUSES COMMON TO THE WORK SECTIONS ARE NOT NECESSARILY REPEATED HERE. PART 1 SYSTEM OBJECTIVES 100.010 PERFORMANCE OBJECTIVES The underground soil and waste drainage system shall collect the discharge from the proposed development. Disposal shall be by means of a sewage treatment plant. The Contractor shall ascertain all inverts. 100.030 SYSTEM DESCRIPTION Refer to Work Section R11 for system description.



PART 3 SPECIFICATION CLAUSES SPECIFIC TO R12 300.000 GENERAL • 300.020 WORKS BY OTHERS: Works carried out by others • Setting out; excavation, bedding, protection and backfilling. 300.030 LOCATION OF EXISTING DRAINS: Prior to commencement, confirm invert levels and positions of existing drains, sewers and inspection chambers against information shown on drawings and report discrepancies. Protect existing drains and maintain normal operation during construction. 310.000 PIPELINES 310.005 COMPONENTS FOR USE IN TRENCHLESS CONSTRUCTIONS: Pipes and joints intended for use in drains and sewers which are installed using trenchless construction methods, as defined in BS EN 14457. • 310.050 PLASTIC PIPES - GRAVITY: • Manufacturer and reference -Durapipe • Or approved equivalent.

• Pipes, bends and junctions • Kitemark certified. • Size

• PVC-U to BS EN 1401-1 for pipes of size DN 200 or above. BS EN 15012 for plastic pipes, fittings and their joints, pipe size equal to or greater than 75mm. • 310.060 PLASTIC PIPES - PRESSURE: • Manufacturer and reference -Durapipe • Or approved equivalent. • Standards for performance characteristics of pipes, fittings and their joints, BS EN 15014 - reference Y10.2442.

• Pipes MDPE to BS EN 13244-1, BS EN 13244-2, BS EN 13244-5. • Black. • Class: SDR

• Jointing • Compression fittings. • Pupped fittings with electro-fusion joints. • Butt fusion.

• Pipes and bends • PVC-U to BS EN 1452 with • solvent welded joints.

• mechanical joints.



310.100 WORKMANSHIP Pipes and fittings of common type to be procured from same manufacturer. Joint pipes and fittings with adaptors as recommended by particular manufacturer. Lay pipes to line and even gradient and on even bed for full length of the pipe with any sockets facing towards direction of flow. Use recommended lubricants for joints. Leave recommended gaps at end of spigots to allow for movement. Protect pipelines from ingress of debris. Seal all exposed ends of pipes during construction. Minimise time between laying and testing. Backfill after successful testing. 310.110 PIPES PASSING THROUGH STRUCTURES Provide short length (or rocker pipe) near external face where it is necessary to cast in or fix pipes to structures (including inspection chambers and catch pits). Install flexible joint at each end.

Pipe Size (DN)

Distance to first joint from structure (mm)

Short Length (mm)

100 and 150 150 600 225 225 600

Where it is not necessary to cast in or fix pipes to structures (e.g. walls to footings) provide • short length or rocker pipes as above. • openings in the structure: ensure 50mm minimum clearance all round pipe: closely fit a rigid sheet to each side of the opening, preventing ingress of soil or vermin. 320.000 EXCAVATION, CONCRETE, BACKFILLING, BEDDING/JOINTING: 320.010 EXCAVATED MATERIAL: • Set aside turf, topsoil, hard core, etc., for use in reinstatement. 320.020 LOWER PART OF TRENCH: • Base to 300mm above crown of pipe: trench to have vertical sides: make as small as practicable, but not less than • external diameter of pipe plus 300mm.

• For cover exceeding transition depth for pipe size ensure trench width up to 300mm above crown of pipe is not more than: Nominal pipe bore (mm), 100 150 225 300 Transition depth (m), 6.0 5.4 4.0 2.9 Maximum trench width (mm), 600 700 800 900 • For bedding class S, ensure trench width is not more than the following, irrespective of depth or cover. Nominal pipe bore (mm), 100 150 225 300 • Maximum trench width (mm), 600 700 800 900 320.030 TYPE OF SUBSOIL: Where subsoil at the level of the crown of the pipe differs from that identified in the relevant preceding clause, obtain instructions prior to commencement.



320.040 FORMATION OF BEDS GENERALLY: Ensure there is no delay between excavation and laying of beds or pipe. Remove harmful materials including mud, rock projections, boulders and hard spots: replace with consolidated bedding material. Tamp bedding material into local soft spots. Give adequate advance notice to allow inspection of each section of the work. 320.050 COMBINED TRENCHES: For situations where one pipe is at a lower level than another adjacent pipe in a common trench. • Provided soil is stable and unlikely to break away at any step, a sub trench may be used. • Where soil is not stable the whole trench must have a depth equal to the requirements for the lower pipe: increase thickness of bedding to upper pipe as required. • Backfill lower pipe with compacted granular material to half height of upper pipe. 320.060 TRENCH SUPPORTS: To permit compacted filling of entire trench, remove trench supports and other obstacles as necessary to permit compacted filling of all spaces. 320.070 TRENCHES LESS THAN ONE METRE FROM FOUNDATIONS: For situations where base of trench is below base of foundations, use Class Z concrete surround. Ensure top of concrete is above base of foundation. 320.080 TRENCHES IN EXCESS OF ONE METRE FROM FOUNDATIONS: Critical level is defined as ‘D’mm lower than level of foundation base: ‘D’mm is equal to the horizontal distance of the near side of the trench from the foundation, less 150mm. For situations where base of trench is lower than critical level, use Class Z concrete surround. Ensure top of concrete is above critical level. 320.090 CROSS-OVERS: Where two non-plastic pipes cross within 300mm of each other from any point on the pipes, surround each with Class Z concrete, for at least 1m centred on the crossing point. Extend concrete surround as necessary to within 150mm of next nearest flexible joint on each pipe. 320.100 BACKFILLING TO PIPELINES GENERALLY: • Backfill from top of specified surround or protective cushion with material excavated from the trench, compacted in layers not exceeding 300mm. Until at least 600mm of cover, heavy compactors must not be used. 320.110 IN SITU CONCRETE TO BS 8500 AND BS EN 206-1: • Designated mix GEN 1 or Standard mix SA 2 or an equivalent or better mix subject to approval. 320.120 FOAMED CONCRETE BACKFILL: Repair damaged pipes: seal off cavities in or adjacent to the excavation which are not to be filled. Obtain instructions where doubt prevails. Undertake backfilling in accordance with British Cement Association publication 46.044, `Foamed Concrete - Specification for use in the reinstatement of openings in highways'. Minimum density 1050 kg/m2.



Maximum 28 day compressive strength 10 N/mm2. • Sulphate exposure - Class • 2. • 3. • 4.

320.130 BACKFILLING UNDER ROADS AND PAVINGS: Backfill from top of specified surround or protective cushion up to formation level with Granular Sub-base Material Type 1 to DT Specification for Highway Works, Clause 803, laid and compacted in 150mm layers. 320.140 BACKFILLING OVER CONCRETE: Ensure a delay of at least 24 hours between placing of concrete and backfilling. Ensure a delay of at least 72 hours between placing concrete and the use of heavy compactors or allowing traffic loads. 320.150 TEMPORARY BRIDGES: To prevent construction traffic damaging pipes after backfilling, provide temporary bridges over trenches as necessary. 320.160 WARNING MARKER TAPES: Whilst backfilling pipes lay warning marker tapes at 300 to 400mm below the level of the finished surface. Lay in continuous line over pipe. Install an additional marker 600mm above the top of the pipe where depth is greater than 320.170 CLASS A HALF DEPTH CONCRETE SUPPORT: In situ concrete as clause R12.320.110. Lay concrete blinding, 25mm thick, and allow to set. Lay pipes on two-layer pads of bituminous DPC or equivalent on precast concrete cradles to give a clearance of not less than 100mm under pipes and a nominal clearance between couplings/sockets and blinding. Lay concrete bed, width not less than external diameter of pipe plus 200mm. Shutter vertical sides of concrete or extend concrete across full width of trench. After initial testing, place and compact more concrete for full width of concrete bed or full width of trench to halfway up each side of pipe. 320.180 CLASS B HALF DEPTH GRANULAR SUPPORT: Granular material to BS EN 12620.

Pipe Size (DN) Nominal Single Size (mm) Graded Size (mm)

100 & 150 10 Not permitted 225 & 300 10 or 20 20 to 5 375 - 500 20 20 to 5 600+ 20 or 40 20 or 40 to 5



Lay and compact to a thickness not less than 50mm for sleeve jointed pipes, 100mm for socket jointed pipes, over full width of trench. Where trench bottom is uneven due to hard spots or other reason, increase depth by 100mm. Scoop out locally at couplings/sockets and lay pipes digging slightly into bed and resting uniformly on their barrels. Adjust to line and gradient. After initial testing, lay and compact more granular material uniformly to halfway up each side of pipe. Backfill to 150mm (250mm for adoptable sewers) above crown of pipe with a protective cushion of selected fill, free from vegetable matter, rubbish, frozen soil and material retained on a 40mm sieve. Compact by hand in 100mm layers. 320.190 CLASS D NATURAL BED: Excavate trench slightly shallower than the final levels. Hand trim to accurate levels, replacing any over dig with compacted spoil. Where hand trimming is impracticable obtain instructions before proceeding. Cut holes in trench bottom for couplings/sockets and lay pipes resting uniformly on their barrels, adjusting to line and gradient. Do not use hard packing under pipes. After initial testing, backfill to 150mm (250mm for adoptable sewers) above crown of pipe with a protective cushion of selected fill, free from vegetable matter, rubbish, frozen soil and material retained on a 40mm sieve. Compact by hand in 100mm layers. 320.200 CLASS F GRANULAR BED: Granular material to BS EN 12620.

Pipe Size (DN) Nominal Single Size (mm)

100 & 150 10 225 & 300 10 or 20 375 - 500 20 600+ 20 or 40

Lay and compact to a thickness not less than 50mm for sleeve jointed pipes, 100mm for socket jointed pipes, over full width of trench. Where trench bottom is uneven due to hard spots or other reason, increase depth by 100mm. Scoop out locally at couplings/sockets and lay pipes digging slightly into bed and resting uniformly on their barrels. Adjust to line and gradient. After initial testing, backfill to 150mm (250mm for adoptable sewers) above crown of pipe with a protective cushion of selected fill, free from vegetable matter, rubbish, frozen soil and material retained on a 40mm sieve. Compact by hand in 100mm layers. 320.210 CLASS N AS-DUG MATERIAL BED: Material

As dug material with a compaction fraction of not more than 0.3, or all-in aggregate, nominal size 10mm, or fine aggregate to BS EN 12620.

Lay and compact to a thickness not less than 50mm for sleeve jointed pipes, 100mm for socket jointed pipes, over full width of trench. Where trench bottom is uneven due to hard spots or other reason, increase depth by 100mm. Scoop out locally at couplings/sockets and lay pipes digging slightly into bed and resting uniformly on their barrels. Adjust to line and gradient. After initial testing, backfill to 150mm (250mm for adoptable sewers) above crown of pipe with a protective cushion of selected fill, free from vegetable matter, rubbish, frozen soil and material



retained on a 40mm sieve. Compact by hand in 100mm layers. 320.220 CLASS O FULL DEPTH GRANULAR SUPPORT: Granular material to BS EN 12620.

Pipe Size (DN) Nominal Single Size (mm)

100 & 150 10 225 & 300 10 or 20 Lay and compact to a thickness not less than 100mm over full width of trench. Scoop out locally at couplings/sockets and lay pipes digging slightly into bed and resting uniformly on their barrels. Adjust to line and gradient. After initial testing, lay and compact by hand more granular material to slightly above crown of pipe. Backfill with a protective cushion of selected fill, free from vegetable matter, rubbish, frozen soil and material retained on a 40mm sieve. Compact by hand in 100mm layers to 300mm above crown of pipe. (100mm of granular material may be used in lieu.) 320.230 CLASS P FULL DEPTH GRANULAR SUPPORT: Granular material to BS EN 12620.

Pipe Size (DN) Nominal Single Size (mm) Graded Size (mm)

100 & 150 10 Not permitted 225 & 300 10 or 20 20 to 5 Lay and compact to a thickness not less than 100mm over full width of trench. Scoop out locally at couplings/sockets and lay pipes digging slightly into bed and resting uniformly on their barrels. Adjust to line and gradient. After initial testing, lay and compact by hand more granular material to slightly above crown of pipe. Backfill with a protective cushion of selected fill, free from vegetable matter, rubbish, frozen soil and material retained on a 40mm sieve. Compact by hand in 100mm layers to 300mm above crown of pipe. (100mmof granular material may be used in lieu.) 320.240 CLASS Q GRANULAR SURROUND WITH PROTECTION: Granular material - as for Class P bedding, clause R12.320.230. After initial testing, lay and compact by hand more granular material to 75mm above crown of pipe. Rake out to form an even bed and lay precast concrete paving flags to BS 7533-4, 450mm wide and butted together (if necessary increasing the width of the upper part of the trench). Backfill with soil or topsoil as appropriate.



320.250 CLASS S GRANULAR SURROUND: Granular material to BS EN 12620. Pipe Size (DN)

Nominal Single Size (mm) Graded Size (mm)

100 & 150 10 Not permitted 225 & 300 10 or 20 20 to 5 375 - 500 20 20 to 5 600+ 20 or 40 20 or 40 to 5 Lay and compact to a thickness not less than 50mm for sleeve jointed pipes, 100mm for socket jointed pipes, over full width of trench. Where trench bottom is uneven due to hard spots or other reason, increase depth by 100mm. Scoop out locally at couplings/sockets and lay pipes digging slightly into bed and resting uniformly on their barrels. Adjust to line and gradient. After initial testing, lay and compact more granular material in 100mm layers to 150mm (250mm for adoptable sewers) above crown of pipe. 320.260 CLASS T FULL DEPTH GRANULAR SUPPORT: Granular material to BS EN 12620. Pipe Size (DN)


100 & 150 10 Not permitted 225 & 300 10 or 20 20 to 5 Lay and compact to a thickness not less than 100mm over full width of trench. Scoop out locally at couplings/sockets and lay pipes digging slightly into bed and resting uniformly on their barrels. Adjust to line and gradient. After initial testing, lay and compact by hand more granular material to 100mm above crown of pipe. 320.270 CLASS V FULL DEPTH GRANULAR SUPPORT: Granular material to BS EN 12620. Pipe Size (DN)


100 & 150 10 Not permitted 225 & 300 10 or 20 20 to 5 Ensure width of trench is not less than external diameter of pipe plus 600mm. Lay and compact granular material not less than 200mm over full width of trench. Scoop out locally at couplings/sockets and lay pipes digging slightly into bed and resting uniformly on their barrels. Adjust to line and gradient. After initial testing, lay and compact by hand more granular material to 150mm above crown of pipe.



320.280 CLASS W GRANULAR SURROUND: Excavate trench after hard core has been laid and compacted. Granular material to BS EN 12620 Pipe Size (DN)

Nominal Single Size (mm)

100 & 150 10 225 & 300 10 or 20 Lay and compact to a thickness not less than 100mm over full width of trench. Scoop out locally at couplings/sockets and lay pipes digging slightly into bed and resting uniformly on their barrels. Adjust to line and gradient. After initial testing, lay and compact by hand more granular material to 100mm above crown of pipe. Backfill with hard core or granular material compacted in layers not exceeding 300mm thick up to slab formation. 320.290 CLASS X GRANULAR SURROUND FOR GROUND WATER: Lay 75mm deep bed, at least 100mm wider than pipe, with 10mm single size material to BS EN 12620. Lay pipes and adjust to line and gradient. • Complete surround with 10mm single size material compacted to 150mm above crown of pipe. • Complete surround with 14mm single size material compacted to 150mm above crown of pipe. 320.300 CLASS Y CONCRETE SURROUND FOR SHALLOW PIPES UNDER BUILDINGS: Where crown of pipe is less than 300mm below underside of slab, encase pipe in concrete of same mix as slab and cast integrally with the slab. Extend length of concrete surround to within 150mm of next nearest flexible joint. Excavate trench after hard core has been laid and compacted. Lay concrete blinding, 25mm thick over full width of trench and allow to set. Lay pipes on blinding on folded wedges of compressible board not less than 100mm above blinding. Anchor the pipeline or fill with water to prevent flotation. 320.310 CLASS Z CONCRETE SURROUND: In situ concrete as clause R12.320.110. Lay concrete blinding, 25mm thick over full width of trench, and allow to set. Lay pipes on blinding on folded wedges of compressible board not less than 150mm above blinding. Form vertical construction joints in surround at face of flexible pipe joints using 18mm thick compressible board pre-cut to profile of pipe. Fill any gap between spigot and socket with resilient material to prevent entry of concrete. After initial testing, place and compact more concrete for full width of trench to encase pipe • to 150mm above crown.



330.000 FITTINGS, TERMINALS, ACCESSORIES 330.010 GENERAL: Ensure each complete assembly of fittings, traps, etc., including appropriate couplings, is procured from a common manufacturer. Check compatibility components with each other and with the pipe system. • 330.020 GULLIES: • Gulley with light liquid closure to BS EN 1253-5. • 330.040 GREASE TRAPS: • Standard • BS EN 1825-2.

• Kitemark certified. • 330.050 SADDLE CONNECTORS: • Kitemark certified. • Assembly • Material 330.060 AIR RELEASE VALVES TO PRESSURE PIPES: • Type • Application • Manufacturer and reference • Or approved equivalent. • Size Install where shown on drawings at highest points. 330.070 WASH-OUT VALVES TO PRESSURE PIPES: • Type • Application • Manufacturer and reference • Or approved equivalent • Size Install where shown on drawings at lowest points. 330.080 ANCHORS TO PRESSURE PIPES: Install anchors • in positions shown on drawings. In situ concrete as clause R12.320.110. Horizontal thrusts Cast cradle around half of pipe up to undisturbed trench side. Vertical or inclined thrusts

Clamp pipe/fitting to concrete block under with two 6 mm galvanized steel straps. Pipe inclines in excess of 16.5%

Cast concrete blocks across pipe and set into undisturbed ground.



• 330.100 PRIVATE PACKAGED PUMPING STATION: • Manufacturer and reference Armstrong Pullen • Or approved equivalent.

• Kitemark certified. • Pump impeller type • Grinder.

• Non-return valve • Required. • Inlet pipe

• PVC-U • Outlet pressure pipe • PVC-U, size

• Electricity supply to BS 7697 • Single phase. • Three phase. • Control panel type • External, free standing.

• Cable ducts Install cable ways for control panel supply and from control panel to tank, complete with draw wires. • Black PVC-U to BS 3506, size • Black PVC-U, Class B, to BS 4660, size

• Insitu concrete base - 150mm thick, as clause R12.320.110. • Concrete cradle

• To avoid tank floating, fill tank one third with water. Encase bottom third with concrete as clause R12.320.110 to fully support tank.

• Upper concrete surround To avoid tank floating, fill with water. Encase tank and access shafts with concrete as clause R12.320.110 to fully support tank. • Thickness at least 150mm. • Access covers and seating • Cast iron as clause R12.350.180.

• Commission system, inspect and check the entire installation as clause R12.360.070. 340.000 WORKMANSHIP FOR FITTINGS, TERMINALS, ACCESSORIES: 340.010 INSTALLATION OF FITTINGS: Fittings must be square and tightly jointed. Align with building constructions. Request instructions where doubt prevails. Bed and surround fittings, traps, etc. in concrete 150mm thick, insitu concrete as clause R12.320.110. Allowable deviation in level of gulley gratings +0 to -10mm. Cover exposed ends with purpose made caps. Protect from site traffic. 340.020 BENDS AT BASE OF SOIL STACK: • Use a 90.5o nominal rest bend with a minimum radius of 200mm to centreline of the pipe. • Form with two 45o bends with a minimum radius of 200mm to centreline of the pipe. Ensure pipe is not less than the following depth. Up to building height of 3 storeys: distance below lowest branch 450mm. Multi-storey buildings up to 5 storey: distance below lowest branch 750mm. Multi-storey buildings above 5 storey: no connection on ground floor.



• Stabilise bend(s) by bedding in concrete as clause R12.320.110 without adversely affecting the flexibility of couplings. 340.030 DIRECT CONNECTION OF GROUND FLOOR WCS: Drop from crown of WC trap to invert of drain not to exceed 1.5m. Horizontal distance from drop to ventilated drain not to exceed 6m. 340.040 INSTALLATION OF DRAINAGE CHANNELS: • Install drainage channels in accordance with the manufacturers recommendations. 350.000 INSPECTION CHAMBERS/ACCESS/TANKS/SOAKAWAYS: • 350.010 BRICK INSPECTION CHAMBERS: • Manufacturer and reference in-situ • Or approved equivalent. • Base - 150 mm thick plain concrete mix as clause R12.320.110. • Brickwork • BS EN 772-3 and BS EN 772-7, Class B, with frogs facing upwards.

• Step irons Bed in joints to all chambers over 900 mm deep at 300 mm vertical centres staggered 300 mm horizontally. Lowest step iron no more than 300 mm above benching. Top step iron no more than 450 mm below top of cover. • Galvanised ferrous to BS EN 13101 • Fixed ladders to BS EN 14396 • Type • Material • Galvanised steel.

• Channels, branches and benching • Conventional as clause R12.350.080. • Preformed plastic as clause R12.350.090. • Sealed access as clause R12.350.100.

• Cover slabs • Precast concrete, bed solid in 1:3 cement:sand mortar to brickwork.

Insitu concrete. • Reinforcement

Steel fabric to BS 4483 • Access covers and seating • 350.020 CONCRETE INSPECTION CHAMBERS UP TO 6 METRES DEEP:

• Kitemark certified. • Base - Insitu concrete as clause R12.320.110. Thickness • Inspection chamber - all components from same manufacturer. • To BS 5911-3. • To BS 5911-4. • To BS EN 1917.

• Cement type • To BS 4027. • Class 42.5 to BS EN 197-1.

• Chamber rings, size DN



• Straight back tapers • For inspection chambers between 2.8m and 6m deep.

• Cover slabs • Standard.

600mm square opening, with 75mm chamfered corners or 600mm diameter opening to suit access opening.

• Estate road type 750mm square opening with chamfered corners or 675 x 1200mm opening with chamfered corners to suit access opening.

• Joints • Bituminous sealing strip. • Cement mortar. • As recommended by manhole manufacturer.

• Steps to BS EN 13101 Galvanised ferrous.

• Fixed ladders to BS EN 14396. • Material • Galvanised steel.

• In situ concrete surround 150mm minimum thickness, mix as clause R12.320.110

• Channels, branches and benching • Conventional as clause R12.350.080. • Preformed plastic as clause R12.350.090. • Sealed access as clause R12.350.100.

• Access covers and seating 350.030 CONCRETE INSPECTION CHAMBERS OVER 6 METRES DEEP: • Inspection chamber - all components from same manufacturer • To BS 5911-3. • To BS 5911-4. • To BS EN 1917. Cement type • To BS 4027. Class 42.5 to BS EN 197-1.

• Landing slabs • Standard. • Segmental 0.3 x radius.

• 1500 x 1000mm central. • Cover slabs

600mm square opening, with 75mm chamfered corners or 600mm diameter opening to suit access opening.

• Joints • Bituminous sealing strip. • Cement mortar. • As recommended by inspection chamber manufacturer.

• Internal access Steel ladders, handrail, balustrades and safety hoops to BS EN ISO 1461.

• Channels, branches and benching • Conventional as clause R12.350.080. • Preformed plastic as clause R12.350.090.

• Sealed access as clause R12.350.100.



350.060 GRANULAR FILL SOAKAWAY: • Granular material

Clean broken bricks, crushed rock or gravel, size range150 mm to 50 mm. Installation

Line base and sides of pit with geotextile membrane. Insert distributor pipes both vertical and horizontal (if required). Fill to invert level of inlet pipe with granular material. Cover with geotextile membrane. Then connect inlet pipe to inspection/distribution pipe. Backfill with as-dug material.

350.080 CONVENTIONAL CHANNELS, BRANCHES AND BENCHING: Bed main channel solid in 1:3 cement:sand mortar. Connect branches to channel, ideally at half channel depth, to ensure discharge flows smoothly in direction of main flow. Connect branches greater than DN 150 with level soffit to that of the main drain. For a connecting angle greater than 45 o to direction of flow use three-quarter section channel bends. Use clips or ensure mechanical key when bedding plastic channels on to mortar. Form benching in concrete, mix as clause R12.320.110, to rise vertically from top of main channel to a level not lower than soffit of outlet pipe, then slope upwards at 10% to walls. Within 3 hours float with coat of 1:3 cement:sand mortar and finish smooth with steel trowel. 350.140 RIGID BACKDROP PIPES OUTSIDE INSPECTION CHAMBER WALL: Encase with at least 150mm of in situ concrete as clause R12.320.110. Replace with concrete any excavated material under backdrop pipe and its surround. 350.150 PETROL/FUEL INTERCEPTOR UNIT: • Kitemark certified.

Inlet pipe • Vent pipes

Manifolded above ground, terminating at least 2.4m above ground level. • Insitu concrete base - 150mm thick as clause R12.320.110. • Concrete surround

To avoid tank floating, fill with water. Encase tank and access shafts with concrete as clause R12.320.110 to fully support tank. • Thickness at least 150mm.

• Access covers and seating • Precast concrete. • Cast iron as clause R12.350.180.

350.180 CAST IRON ACCESS COVERS AND SEATING TO BS EN 124: • Manufacturer and reference Nigeria Foundries • Or approved equivalent.

• Standard - Grey iron or ductile iron to BS EN 124. • Type • Class reference • A15, for pedestrian use. • B125, for light traffic use. • C250, for slow-moving heavy traffic use. • D400, for carriageway use.

• Size • 600mm x 450mm. • 500mm diameter.



• Duty • Heavy. • Medium. • Light. • Stainless steel locking bolts. • Single seal filled with grease. • Single seal.

• Seating Make-up in engineering bricks to BS EN 772-3 and BS EN 772-7 Class B, laid in 1:3 cement:sand mortar, or precast concrete cover frame units, Type 1 or Type 2 to suit cover shape. Bed and haunch frame solidly in 1:3 cement:sand mortar over entire area, centrally over opening, level and square with joints in surrounding finishes. Cut back top of haunching to 30mm below top of surface material.

350.190 STEEL ACCESS COVERS AND SEATING: • Standard - Steel to BS EN 124. • Type • Concrete block pavements • Grassed and soiled areas

• Seating Make-up in engineering bricks to BS EN 772-3 and BS EN 772-7 Class B, laid in 1:3 cement:sand mortar, or precast concrete cover frame units, Type 1 or Type 2 to suit cover shape. Bed and haunch frame solidly in 1:3 cement:sand mortar over entire area, centrally over opening, level and square with joints in surrounding finishes. Cut back top of haunching to 30mm below top of surface material.

350.210 LIFTING KEYS: Provide lifting keys for each type of access cover and hand over at Practical Completion. • 350.220 OUTFALLS: • In situ concrete base • 150mm thick, as clause R12.320.110. Ensure pipe outflow invert is equal or above level of seasonal peak and/or 150mm above normal water level. Ram home excavated subsoil as pipe surround and backfill to last 2m of drain run. • Splash plate • Precast concrete slab to BS 7533-4.

Vermin grating Extend mild steel frame 75mm beyond pipe all round. Install steel mesh grille. • Maximum mesh size 25mm

Hinged top on built-in fish-tail straps. Pin lock at base. • Galvanised to BS EN ISO 1461 after fabrication. • 350.230 OUTLET HEADWALLS: • Drawing number • Concrete base • 150mm thick, as clause R12.320.110 • Splash plate



• Precast paving slab • In situ concrete, as clause R12.320.110

Vermin grating Extend mild steel frame 75mm beyond pipe all round. Install steel mesh grille. • Maximum mesh size 25mm

Hinged top on built-in fish-tail straps. Pin lock at base. • Galvanised to BS EN ISO 1461 after fabrication 350.240 CONNECTION TO SEWERS: Connect new pipe to existing adopted sewers to conform to the requirements of the Sewerage Authority or its agent. 360.000 CLEANING/TESTING/INSPECTION 360.010 CLEANING: Prior to final testing or CCTV inspection, remove all silt and debris by flushing entire installation with water. Repeat immediately before handover. Refer to Health and Safety Plan with respect of safe disposal of washings and detritus. Do not discharge into sewers or watercourses. 360.020 TESTING/INSPECTION GENERALLY: Give advance warning to allow witnessing of tests and inspections. Give the Statutory Authority appropriate notice to enable pipelines to be inspected and tested as required. • Provide clean water, assistance and apparatus for testing and inspection as required. Ensure entire system including inspection chambers pass the tests specified. If tests fail, remedy defect(s) before retesting after an appropriate period. 360.030 WATER/AIR TESTING OF GRAVITY DRAINS AND PRIVATE SEWERS UP TO DN 300: Immediately after completion of bedding/surround, air test short lengths of pipe to BS EN 752 all pipes from terminals and connections to inspection chambers and between inspection chambers. 360.040 TESTING OF ADOPTABLE AND LARGE PRIVATE SEWERS: Test sewers up and including DN 750 size to BS EN 752, as follows. Initially, before backfilling by air test. Finally, after backfilling by water test. Test sewers over DN 750 size before and after backfilling in short sections or at joints to BS EN 752. After backfilling check at inspection chambers for infiltration into sewers to BS EN 752. 360.050 WATER TESTING OF INSPECTION CHAMBERS: Before backfilling test inspection chamber to BS EN 752 for • Exfiltration • Infiltration



360.070 WATER TESTING OF PRIVATE PRESSURE PIPELINES: Application Test pipes to BS EN 752 and following paragraphs. Test to be undertaken within 24 hours of completions of joints and installation of anchors. Commission pumping system, and check operation of complete installation is correct under normal working conditions.



BS APPENDIX BS 3506:1969 Specification for unplasticized PVC pipe for industrial uses BS 4027:1996 Specification for sulfate-resisting portland cement BS 4483:2005 Steel fabric for reinforcement of concrete.Specification BS 4660:2000 Thermoplastics ancillary fittings of nominal sizes 110 and 160 for below ground gravity drainage and sewerage. BS 5911-3:2002 Precast concrete pipes, fittings and ancillary products. Part 3 Specification for unreinforced and reinforced concrete manholes and soakaways (complementary to BS EN 1917:2002). BS 5911-4:2002 Precast concrete pipes, fittings and ancillary products. Part 4 Specification for unreinforced and reinforced concrete inspection chambers (complementary to BS EN 1917:2002) BS 7533-4:2006 Pavements constructed with clay, natural stone or concrete pavers. Part 4 Code of practice for the construction of pavements of precast concrete flags or natural stone slabs BS 7697:1993 Nominal voltages for low voltage public electricity supply systems BS EN 124:1994 Gully tops and manhole tops for vehicular and pedestrian areas. Design requirements, type testing, marking, quality control BS EN 1253-5:2003 Gullies for buildings. Part 5 Gullies with light liquids closure BS EN 12620:2002+A1:2008 Aggregates for concrete BS EN 13101:2002 Steps for underground man entry chambers. Requirements, marking, testing and evaluation of conformity.



BS EN 13244-1:2002 Plastics piping systems for buried and above-ground pressure systems for water for general purposes, drainage and sewerage. Polyethylene (PE). Part 1 General BS EN 13244-2:2002 Plastics piping systems for buried and above-ground pressure systems for water for general purposes, drainage and sewerage. Polyethylene (PE). Part 2 Pipes BS EN 13244-5:2002 Plastics piping systems for buried and above-ground pressure systems for water for general purposes, drainage and sewerage. Polyethylene (PE). Part 5 Fitness for purpose of the system BS EN 1401-1:2009 Plastics piping systems for non-pressure underground drainage and sewerage. Unplasticized poly(vinylchloride) (PVC-U). Part 1 Specifications for pipes, fittings and the system BS EN 14396:2004 Fixed ladders for manholes BS EN 14457:2004 General requirements for components specifically designed for use in trenchless construction of drains and sewers BS EN 15012:2007 Plastics piping systems. Soil and waste discharge systems within the building structure. Performance characteristics for pipes, fittings and their joints BS EN 1825-2:2002 Grease separators. Selection of nominal size, installation, operation and maintenance BS EN 1917:2002 Concrete manholes and inspection chambers, unreinforced, steel fibre and reinforced. BS EN 197-1:2000 Cement. Part 1 Composition, specifications and conformity criteria for common cements BS EN 206-1:2000 Concrete. Part 1 Specification, performance, production and conformity BS EN 752:2008 Drain and sewer systems outside buildings BS EN 772-3:1998



Methods of test for masonry units. Part 3 Determination of net volume and percentage of voids of clay masonry units by hydrostatic weighing BS EN 772-7:1998 Methods of test for masonry units. Part 7 Determination of water absorption of clay masonry damp proof course units by boiling in water BS EN ISO 1461:1999 Hot dip galvanized coatings on fabricated iron and steel articles. Specifications and test methods

R20 - SEWAGE PUMPING


R20 SEWAGE PUMPING THIS WORK SECTION SHALL BE READ IN CONJUNCTION WITH WORK SECTION R11 – FOUL DRAINAGE ABOVE GROUND. CLAUSES COMMON TO THE WORK SECTIONS ARE NOT NECESSARILY REPEATED HERE. PART 1 SYSTEM OBJECTIVES 100.010 PERFORMANCE OBJECTIVES The underground soil and waste drainage system shall collect the discharge from the development and convey same to the treatment plant. Disposal shall be by means of a sewage treatment plant. Lift stations shall be provided to limit the invert of the sewerage 100.030 SYSTEM DESCRIPTION Refer to Work Section R11 for system description.



PART 3 SPECIFICATION CLAUSES SPECIFIC TO R20 300.000 GENERAL 300.010 PRESSURE SEWERAGE SYSTEMS OUTSIDE BUILDINGS: Install, commission and set to work, pressure sewerage systems in accordance with BS EN 1671. 300.030 SITE INVESTIGATION (SOILS): Carry out site investigation to confirm the following soil properties • Standard - BS 5930. • Properties • Grading. • Permeability. • Verify locations of existing services.

• Guide - CIRIA Special Publication 25 - Site Investigation Manual. 310.000 PRODUCTS AND MATERIALS • 310.010 COLLECTING CHAMBER:

• Standard • BS EN 12050. • Materials • Concrete to BS 5911 • In situ. • Precast.

• 310.020 PRESSURE GENERATING EQUIPMENT - PUMP UNITS: • Manufacturer and reference Armstrong Pullen

• Or approved equivalent. • Standard • BS EN 12050.

• Pumps • Submersible • Number • 2 minimum per pumping chamber. • Flushing

• Water Provide level switches for the following functions:- • Start selected pump when effluent reaches predetermined level • Start selected pump after predetermined period of no activity • Switch pump off at a predetermined level • Stop pump after predetermined time • Start second pump when effluent reaches predetermined high level • Stop second pump when effluent returns to predetermined level

• High limit switch to raise alarm • Arrange controls to change pumps on a weekly basis. • Alarms • Acoustic



• Visual • Maintenance

For maintenance and servicing, install submersible pumps: • On guide rails. • With lifting cables.

320.000 WORKMANSHIP 320.010 INSTALLATION: Install sewage pumping equipment in accordance with manufacturer's recommendations. • Standard • BS EN 1671. • BS EN 12050. • BS EN 805.

320.020 QUALITY CONTROL: • Use an effective documented quality control system to ensure compliance with product standards. Provide basis and calculation of system design to • The Bank



BS APPENDIX BS 5930:1999 Code of practice for site investigations BS EN 1671:1997 Pressure sewerage systems outside buildings BS EN 805:2000 Water supply. Requirements for systems and components outside buildings

R21 - SEWAGE TREATMENT/STERILISATION


R21 SEWAGE TREATMENT/STERILISATION THIS WORK SECTION SHALL BE READ IN CONJUNCTION WITH WORK SECTION R11 – FOUL DRAINAGE ABOVE GROUND. CLAUSES COMMON TO THE WORK SECTIONS ARE NOT NECESSARILY REPEATED HERE. PART 1 SYSTEM OBJECTIVES 100.010 PERFORMANCE OBJECTIVES The underground soil and waste drainage system shall collect the discharge from the development and convey same to the treatment plant. Disposal shall be by means of a sewage treatment plant. Lift stations shall be provided to limit the invert of the sewerage 100.030 SYSTEM DESCRIPTION Refer to Work Section R11 for system description.



PART 3 SPECIFICATION CLAUSES SPECIFIC TO R21 300.000 GENERAL • 300.040 EFFLUENT QUALITY: • Obtain water or river authority consent to direct discharge to a watercourse. • Ensure disposal of final effluent is to standards of discharge determined by the water or river authority. • Normal requirements • Maxima of 30mg/l of suspended solids and 20mg/l of biochemically dissolved oxygen (BOD), described as 30:20". Besides BOD and suspended solids ensure effluent is low in harmful contaminants.

• 300.060 SITE INVESTIGATION (SOILS): Carry out site investigation to confirm the following soil properties • Standard - BS 5930. • Properties • Grading. • Bearing Capacity. • Permeability. • Water Table. • Liquefaction. • Settlement. • Subsidence. • Buried Services. • Rock Outcrops.

• Guide • CIRIA Special Publication 25 -Site Investigation Manual.

• 300.100 STANDARDS: Liaise with the drainage or river authority regarding discharge quality and test requirements. • Treatment. • Total.

• Standards • BS 6297. • BS EN 752. • BS EN 12056. • BS EN 12566-3. • In situ concrete wet chambers BS 8007.

310.000 PRODUCTS/MATERIALS • 310.010 PRELIMINARY TREATMENT PLANT: • Manufacturer and reference - Klargester, Satec, Biowaste • Or approved equivalent.

• Action • Filter out large solids. • Macerate solids.



• Remove detritus or grit. • Remove grease. • Raise head to an appropriate level.

• Screens • Coarse bar screens (40-150mm slots). • Medium bar screens ( 8 -40mm slots). • Fine screens (1-8mm mesh). • Comminutor (combined shredding mill and screen).

• Raking • Mechanical. • Detritus or Grit Removal

• 310.020 SETTLEMENT TANK:

• Designation • Primary, i.e. before biological treatment.

• Materials • Reinforced plastic (GRP) to BS EN 13923 and BS EN 13121-3.

• Desludging • By tanker. • By internal pumps.

• 310.040 ROTARY BIOLOGICAL CONTACTOR: • Manufacturer and reference - Klargester • Or approved equivalent.

• Contactor type • Parallel discs. • Spiral rotor.

• Features • Surge suppression. • Removal of excess film. • Ease of cleaning (required after 24 hour breakdown).

• Material • Expanded metal. • Plastic mesh. • GRP. • High density polystyrene foam.

• 310.050 ACTIVATED SLUDGE UNITS: • Manufacturer and reference - Satec • Or approved equivalent.

• Type • Extended aeration. • Contact stabilisation. • Diffused air.

• Features • Protection against corrosion. • Standby electrical equipment. • Automatic restart after power failure. • Arrangements to remove surplus sludge. • Surge suppression.



• Sludge Removal • Integral pipes and pumps. • Access to external tankers.

• 310.060 TERTIARY TREATMENT OR POLISHING PLANT: • Manufacturer and reference - Satec • Or approved equivalent. • Method • Rapid sand filtration. • Micro-straining. • Chlorine or bromine disinfection.

• 310.070 SLUDGE TREATMENT AND DISPOSAL PLANT: • Manufacturer and reference - Satec • Or approved equivalent.

• Provide means to dispose of sludge from sediment tanks and the surplus from activated sludge processes. • Provide treatment to render raw sludge amenable for disposal.

• Pre-treatment • Anaerobic digestion.

• Dewatering • Heat treatment • Pressure filtration • Disposal • Incineration • Dumping

• 310.100 STRUCTURES: • Material • In situ concrete • Glass reinforced plastic

320.000 WORKMANSHIP • 320.010 SITE PREPARATION: • Prepare site for treatment plant in clean, dry and stable conditions, in accordance with manufacturer's recommendations.

• 320.020 INSTALLATION AND TESTING: Install prefabrication units in accordance with the manufacturer's instructions. Carry out leakage tests on all components. • Run under operating conditions on a trial basis, • for a duration 2 weeks • until effluent meets indicated standards. • under the Supplier's technical auspices. • Trial run carried out by, • the Operator. • the Installer.



• the Supplier. 320.030 CONSTRUCTION OF STRUCTURES: Build pipes in and out of structures as short as possible, provide a flexible joint within 200mm of the structure. Surround such pipes with C20 class concrete at least 150mm thick. 320.050 BURIAL OF PREFABRICATED STRUCTURES: Erect buried structures upon foundations and surround by backfill in accordance with the manufacturer's instructions. Do not bury structures in locations liable to heavier loads than specified by the manufacturer. If flotation is a possibility then surround the structure with sufficient concrete taking care to evaluate the density of the buoyant liquid.



BS APPENDIX BS 5930:1999 Code of practice for site investigations BS 6297:2007+A1:2008 Code of practice for design and installation of drainage fields for use in wastewater treatment BS 8007:1987 Code of practice for design of concrete structures for retaining aqueous liquids BS EN 12566-3:2005 Small wastewater treatment systems for up to 50 PT. Part 3 Packaged and/or site assembled domestic wastewater treatment plants BS EN 13121-3:2008 GRP tanks and vessels for use above ground. Part 3 Design and workmanship BS EN 13923:2005 Filament-wound FRP pressure vessels. Materials, design, manufacturing and testing BS EN 752:2008 Drain and sewer systems outside buildings

S10 - COLD WATER


S10 COLD WATER PART 1 - SYSTEM OBJECTIVES 100.010 PERFORMANCE OBJECTIVES The Sub-Contractor shall supply, install, commission and test the complete cold water service installation as detailed in the design drawings and the design brief to produce a fully operational system. 100.020 DESIGN PARAMETERS The system is designed in accordance with the Plumbing Guide of the Institute of Plumbing 100.030 SYSTEM DESCRIPTION Water Supply and Storage 1. Water supply should primarily be from the public mains but this is yet to be established on

site. The supply, when available, shall extend from the main isolating valve, through a meter, to the bulk water storage tank at the service yard. The tank shall be of sectional bolted GRP construction. Additional treatment for potability shall be provided.

2. Alternative 1no borehole, complete with submersible lift pumps, shall also be sunk. The

raw water shall be taken through the water treatment plant before discharging into the bulk potable storage tank (and other storage facilities). The filtration system and the pumps, blowers, etc. of the treatment plant shall be in duplicate. The raw water tank shall also be of GRP construction.

3. An elevated tank shall be provided at the roof and effect distribution by gravity.

4. Water storage facilities shall be provided for the fire fighting services 5. All tanks shall be compartmentalized for reliability and to facilitate cleaning and

maintenance. 6. The quality of the water supply and distribution shall be in accordance with the standards

of the WHO. Particular precautions shall be taken, both in design and operation, to prevent the occurrence of legionella.

Water Distribution 1. The water distribution for the development shall essentially be by gravity from the roof

storage tanks. Pressurized distribution by means of packaged sets shall be provided on ‘as necessary’ basis.

2. A high lift pump shall transfer water from the ground storage tank at the service yard to

the elevated tanks. The controls shall be by means of high and low level float switches mounted on the elevated tank.

3. Down pipes shall be taken from the elevated tank to all the points of use. 4. All branches off the risers and main distribution lines shall be valved. Supplies to all

fixtures will also be fitted with isolating valves.

S10 - COLD WATER


PART 2 SELECTION SCHEDULES FOR REFERENCE SPECIFICATIONS 210.000 PIPELINES 210.010 GENERAL: • Comply with work section general clauses reference Y10.1000 and those detailed below.

• 210.020 COPPER PIPES AND FITTINGS: • Application • water services

• Copper pipe, half hard (Class X) • Uncoated - reference Y10.2270A • Chromium plated - reference Y10.2270B • White polyethylene sheathed - reference Y10.2270C

• Copper pipe, hard (Class Z) • Uncoated - reference Y10.2290A

• Capillary fittings for copper tubing • General potable range - reference Y10.2310A • Chrome plated potable range - reference Y10.2310B • High duty range - reference Y10.2310C

• Press fittings for copper tubing • Copper - reference Y10.2315A • Gunmetal - reference Y10.2315B • Stainless steel - reference Y10.2315C

• Compression fittings for copper tubing • Type A compression fittings - reference Y10.2320A • Type A, chrome plated compression fittings - reference Y10.2320B

• Fittings, grooved for mechanical joints • Copper (table X) - reference Y10.2321A

• Brazed capillary fittings for copper tubing - reference Y10.2322 • Jointing materials

• Brazed joints • Use filler metals to BS EN 1044. • Use nickel bearing zinc free grades of filler metals to BS EN 1044.

• Capillary joints • Lead free solder - reference Y10.3070A • For potable water - reference Y10.3070B

• Use push-fit joints for copper pipe. • Jointing equipment for push-fit system - reference Y10.3102 • Jointing equipment for press fitting system - reference Y10.3125

• 210.030 PLASTICS PIPES AND FITTINGS: • Application

• water services • Manufacturer - Durapipe • Or approved equivalent • Fluid conveyed • Multilayer plastics piping systems for indoor gas installations to BS EN ISO 21003, BS ISO 17484-1 - reference Y10.2440

• Layered pipe and fittings for hot and cold water - reference Y10.2430 • Plastics piping systems for water supply

S10 - COLD WATER


• Pipes to BS EN 1452 - reference Y10.2455A • Fittings to BS EN 1452 - reference Y10.2475A

• Polyethylene pipe - reference Y10.2520 • Buried polyethylene pipes for supply of gaseous fuels to BS ISO 4437 • Polyethylene pipes with identification tapes - reference Y10.2525A • Polyethylene pipes with co-extruded layers - reference Y10.2525B • Polyethylene pipes with external thermoplastics layer - reference Y10.2525C

• Polyethylene pipe to BS EN 1555 - reference Y10.2528 • Polyethylene fittings - reference Y10.2530 • Polyethylene fusion fittings to BS EN 1555 - reference Y10.2538 • Special materials • Vulcathene - reference Y10.2710# • Vulcathene fittings - reference Y10.2720# • Jointing materials • Jointing materials for plastics pipes to BS 7291 • Pushfit - reference Y10.3095B

• Jointing equipment for polybutylene pipes • Compression fittings - provide the equipment recommended by the manufacturer to carry out compression jointing on polybutylene pipes and fittings. • Socket fusion - provide the equipment recommended by the manufacturer to carry out socket fusion jointing on polybutylene pipes and fittings.

• Electrofusion - provide the equipment recommended by the manufacturer to carry out electrofusion jointing on polybutylene pipes and fittings.

• 210.050 STEEL PIPES AND FITTINGS: • Application

• cold and hot water services • fire fighting services • steam services

• fuel services • Carbon steel pipes to BS EN 10255 • Heavy, black - reference Y10.2010A • Medium, black - reference Y10.2010B • Medium, galvanized - reference Y10.2010C

• Carbon steel fittings to BS EN 10255 • Reference Y10.2020A • Carbon steel fittings to BS EN 10253-1 or BS EN 10253-2. • Heavy weight - reference Y10.2060A • Medium weight - reference Y10.2060B

• Stainless steel, grooved for mechanical joints • Reference Y10.2255A • Carbon & stainless steel compression couplings to BS 4368-1- reference Y10.2200#

• Jointing materials • Circular flanges • Welding flanges - reference Y10.3010A • Screwed flanges - reference Y10.3010B

• Jointing rings for circular flanges • Non-metallic flat for flanges to BS EN 1092-1 - reference Y10.3020A • Metallic for flanges to BS EN 1092-1 - reference Y10.3020B

• Screwed joints to BS 21 and BS EN 10226-1. • Paste and hemp and PTFE tape - reference Y10.3030A • PTFE tape - reference Y10.3030B

S10 - COLD WATER


• Where chemical cleaning is required - reference Y10.3030C • Union connections • Railroad pattern - spherical seating bronze to iron. • Navy pattern - spherical seating bronze to bronze.

• Welding rods • Reference Y10.3050A

• Use press fitting jointing system for stainless steel pipe for pressure purposes. • Jointing equipment for press fitting jointing system - reference Y10.3125

• 210.070 PIPEWORK ACCESSORIES: • Wall, floor and ceiling masking plates • Chromium plated - reference Y10.3190A. • Plastic - reference Y10.3190B • Pipe rings and clips • Copper pipework • Use plastic pipe clips.

• Use brass pipe clips. • Pipework support - reference Y10.4210 • 210.080 GENERAL WORKMANSHIP • Appearance - reference Y10.4010 • Spacing - reference Y10.4020 • Gradients - reference Y10.4030 • Air venting requirements • Air bottles - reference Y10.4040A • Automatic air vents - reference Y10.4040B

• Drain requirements - reference Y10.4050 • Expansion and contraction - reference Y10.4060 • Pipe fittings • Bends/swept tees - reference Y10.4070A

• Elbows/square tees - reference Y10.4070B • Fabricated fittings • Ferrous - reference Y10.4090

• Non-ferrous - reference Y10.4100 • Pipes through walls and floors - reference Y10.4110 • Pipes through walls and floors - fire stopping - reference Y10.4110 • Pipe sleeves • Reference Y10.4120A • Insulation carried through - reference Y10.4120B

• Pipe sleeves through fire barriers - reference Y10.4125 • Connect to equipment. • Use distribution headers. • Temporary plugs, caps and flanges • Reference Y10.4150A.

• Flanged joints general - reference Y10.4160 • Dissimilar metals - reference Y10.4170 • Pipe rings and clips - reference Y10.4180 • Anchors - reference Y10.4190 • Slide guides - reference Y10.4200

• Pipe supports - reference Y10.4205 • Support spacing - reference Y10.4220

S10 - COLD WATER


• Isolation and regulation • Reference Y10.4230A

• Maintenance and renewal - reference Y10.4240 • Clean by removing cement and clean off all pipework and brackets. • Non ferrous components - thoroughly clean and degrease. • 210.090 WORKMANSHIP, STEEL PIPEWORK: • Welding, general • Class 1 - reference Y10.5010A • Class 2 - reference Y10.5010B

• Welded joints - reference Y10.5020 • Painting welded joints - reference Y10.5030 • Flanged joints - reference Y10.5040 • Screwed joints - reference Y10.5050 • Mechanical joints - reference Y10.5060 • Anchors • U-bolts - reference Y10.5070A

• Flanges - reference Y10.5070B • Pipework painting - reference Y10.5090 • Installation of stainless steel pipework • Compression joints - reference Y10.5100 • Mechanical joints - Y10.5060

210.100 WORKMANSHIP, COPPER PIPEWORK: • Welding general - reference Y10.6010 • Compression joints - reference Y10.6030 • Capillary joints - reference Y10.6040 • Brazed joints - reference Y10.6050 • Anchors • Flanges - reference Y10.6060A

• Saddle clamps - reference Y10.6060B • Press fitting system - reference Y10.6080 • Push-fit fitting system - reference Y10.6090 • 210.120 WORKMANSHIP, PLASTIC PIPES: • Solvent welded joints, PVC - reference Y10.8010 • Fusion joints, PE - reference Y10.8020 • Mechanical fittings, PE - reference Y10.8030 • Anchors, PVC - reference Y10.8040 • Jointing polybutylene pipes and fittings - reference Y10.8050 • Plastic pipes and fittings with secondary containment - reference Y10.8070. • 210.130 WORKMANSHIP: • Steam and condense mains • Trap sets at low points - reference Y10.9020A • Trap sets at low points and at automatic control valves • Reference Y10.9020B • Protection of underground pipework - reference Y10.9030

S10 - COLD WATER


• Protection of buried pipes • Unmarked - reference Y10.9040A • Marked - reference Y10.9040B

• Protection of pipes in screed • Wrap with two protective tapes before laying.

• Thermally insulated underground pipelines • To BS EN 253 - reference Y10.9060A • To BS 4508-1 - reference Y10.9060B • Plastic Service Pipes - reference Y10.9060C

• Corrosion protective tape - reference Y10.9100 • Mechanical protective tape - reference Y10.9110 • Steelwork painting • Reference Y10.9120A

S10 - COLD WATER


211.000 PIPELINE ANCILLARIES 211.010 GENERAL: • Comply with work section general clauses reference Y11.1000 and those detailed below. • 211.030 STOP VALVES: • Manufacturer and reference Crane • Or approved equivalent

• Service fluid • Water

• WRAS approved. • Kitemark certified. • Pipe material • To suit copper tube. • To suit plastic tube. • To suit steel tube.

• Stop valves to BS EN 1213 for potable water supplies • Compression ends for copper - reference Y11.2015A • Compression ends for plastics - reference Y11.2015B • Capillary - reference Y11.2015C • Threaded - reference Y11.2015D

• Gate valves to BS EN 12288 • Screwed to BS EN ISO 228-1, or ISO 7-1 - reference Y11.2020A • Compression to BS EN 1254-2 - reference Y11.2020B • Flanged to BS EN 1092-3 - reference Y11.2020C • Loose nut/union end - reference Y11.2020D

• Gate valves to BS EN 1171 • Flanged to BS EN 1092-2 - reference Y11.2030A

• Globe valves to BS 5154 • Screwed to BS 21 and BS EN 10226-1 - reference Y11.2040A • Flanged to BS EN 1092-3 - reference Y11.2040B • Compression to BS EN 1254-2 - reference Y11.2040C • Compression to BS EN 1254-3 - reference Y11.2040D

• Globe valves to BS EN 13789 • Flanged to BS EN 1092-2 - reference Y11.2050A

• Parallel slide to BS EN 1171 • Reference Y11.2060A

• Handwheel operated gate type to BS EN 1984 • Flanged to BS EN 1092-1 - reference Y11.2070A • Butt-welded body - reference Y11.2070B • Socket welded - reference Y11.2070C • Threaded - reference Y11.2070D • Auxiliary connections

• Ball type, copper alloy to BS EN 13828. • Screw driver/key operated • Screwed to BS 21 and BS EN 10226-1 - reference Y11.2080A • Compression to BS EN 1254-2 - reference Y11.2080B

• Lever operated • Screwed to BS 21 and BS EN 10226-1 - reference Y11.2080C • Compression to BS EN 1254-2 - reference Y11.2080D

• Lockshield • Screwed to BS 21 and BS EN 10226-1 - reference Y11.2080E

S10 - COLD WATER


• Compression to BS EN 1254-2 - reference Y11.2080F • Butterfly valves to BS EN 593 • Between flanges to BS EN 1092-2 • Lever operated - reference Y11.2090A • Gear operated - reference Y11.2090B

• Between mechanical joints • Lever operated - reference Y11.2090C

• Gear operated - reference Y11.2090D • Lubricated plug cock type to BS 5158 • 211.100 PIPELINE STRAINERS: • Manufacturer and reference Crane • Or approved equivalent

• Bronze • Screwed to BS 21 and BS EN 10226-1 - reference Y11.2680A • Flanged to BS EN 1092-3 - reference Y11.2680B • Compression to BS EN 1254-2

Reference Y11.2680C • Cast iron • Flanged to BS EN 1092-2 - reference Y11.2680D • 211.130 FLOAT OPERATED VALVES: • Manufacturer and reference Crane • Or approved equivalent • WRAS approved. • Kitemark certified. • WRc approved.

• Balanced equilibrium type • Screwed inlet to BS 21 and BS EN 10226-1 - reference Y11.2290A

• Flanged inlet to BS EN 1092-3 - reference Y11.2290B • 211.140 GAUGES: • Manufacturer and reference Crane • Or approved equivalent

• General - reference Y11.2700A • 150mm black stove enamel finish • Flush panel mounting - reference Y11.2700B

• Direct mounting - reference Y11.2700C • Temperature gauges general - reference Y11.2710A • Mercury in steel - reference Y11.2710B • Vapour pressure to BS EN 13190 • Direct mounting - reference Y11.2710C

• Pressure and altitude gauges - reference Y11.2720 • Vacuum gauges - reference Y11.2730 • Differential pressure gauges • Gauge mounting boards • Hardwood - reference Y11.2750A

• 211.170 CHECK VALVES:

S10 - COLD WATER


• Manufacturer and reference Crane • Or approved equivalent

• WRAS approved. • Kitemark certified. • Pipe material • To suit copper tube. • To suit plastic tube. • To suit steel tube.

• Swing check type to BS 5154 • Screwed to BS 21 and BS EN 10226-1 - reference Y11.2320A • Flanged to BS EN 1092-3 - reference Y11.2320B • Grooved for mechanical joints.

• Check valve to BS EN 12334 • Swing check • Flanged - reference Y11.2330A • Grooved for mechanical joints. • Wafer body - reference Y11.2330B

• Lift check • Flanged - reference Y11.2330C

• Wafer body - reference Y11.2330D • Wafer flange fitting type • Reference Y11.2340A • Device to prevent contamination of water by backflow to BS EN 14451 • Combined check and anti-vacuum - reference Y11.2385A

• Anti-back syphonage valve, combined check and anti-vacuum type • Reference Y11.2390A

• Anti-back syphonage valve, hose union anti-vacuum type • Reference Y11.2391A 211.180 WORKMANSHIP: • Installation - reference Y11.4010 • Location - reference Y11.4020 • Discharge connections • Safety and Relief valves - reference Y11.4080A • Vent cocks - reference Y11.4080B • Air bottles - reference Y11.4080C • Automatic air vents - reference Y11.4080D

• Expansion devices - reference Y11.4090 • Expansion compensators - reference Y11.4100 • Flexible connections installation - reference Y11.4110 • Terminal unit connections - install hose connections strictly in accordance with manufacturer's instructions. • 211.190 PRESSURE REDUCING AND CONTROL VALVES: • Manufacturer and reference Crane • Or approved equivalent

• Kitemark certified. • Pressure reducing valve • Integral sensor type - reference Y11.2400# • Pilot operated type - reference Y11.2410# Pressure control valve - direct acting

S10 - COLD WATER


Pressure control valve - with flow regulation • Differential pressure control valve - directing acting type • In line type - reference Y11.2422# • Bypass type - reference Y11.2424#

• 211.200 DIRECT ACTING SAFETY VALVES TO BS EN ISO 4126-1: • Manufacturer and reference Crane • Or approved equivalent • Copper alloy • Single spring - reference Y11.2430A

• Double spring - reference Y11.2430B • 211.220 VENT COCKS: • Manufacturer and reference Crane • Or approved equivalent

• Kitemark certified. • Two way gland cock type - reference Y11.2470 • Ball type - reference Y11.2480 • Three way gland cock type - reference Y11.2490 • Plug valve type • Wrench operated - reference Y11.2500A • Gear operated - reference Y11.2500B

• 211.230 AUTOMATIC AIR VENTS: • Manufacturer and reference Crane • Or approved equivalent

• Float type • Reference Y11.2510A

• 211.240 DEAERATORS AND SEPARATORS: • Manufacturer and reference Spirax Sarco • Or approved equivalent

• Deaerators • Micro-bubble temperature differential • Reference Y11.2515A

• Separators • Centrifugal air separators • Reference Y11.2521A

• Gravitation dirt separators • Reference Y11.2522A

• Micro-bubble air and dirt separators • Reference Y11.2524A

• 211.250 STEAM ANCILLARIES: • Manufacturer and reference Spirax Sarco • Or approved equivalent

• Steam traps and accessories - reference Y11.2530# • Steam traps

S10 - COLD WATER


• Thermostatic type, balanced pressure - reference Y11.2540# • Thermostatic type, bi-metallic - reference Y11.2550 • Float type - reference Y11.2560# • Thermodynamic type - reference Y11.2570# • Inverted bucket type - reference Y11.2580 • Failure indicators - reference Y11.2590#

• Sight glasses - reference Y11.2600# • 211.260 EXPANSION ARRANGEMENTS/DEVICES: • Manufacturer and reference Spirax Sarco • Or approved equivalent • Expansion loops • Steel • Reference Y11.2610A • Galvanized after manufacture.

• Copper - reference Y11.2620 • Expansion compensators • Axial bellows • Screwed to BS 21 and BS EN 10226-1 - reference Y11.2630A • Flanged to BS EN 1092-1 - reference Y11.2630B

• Articulated bellows • Screwed to BS 21 and BS EN 10226-1 - reference Y11.2630D

• Flanged to BS EN 1092-1 - reference Y11.2630E • Hose compensators • Screwed to BS 21 and BS EN 10226-1 - reference Y11.2640A • Flanged to BS EN 1092-1 - reference Y11.2640B

• Flexible connections • EPDM rubber, up to 100oC • Flanged to BS EN 1092-1 - reference Y11.2650A • Screwed to BS 21 and BS EN 10226-1 - reference Y11.2650B

• Above 100oC Flanged to BS EN 1092-1 - reference Y11.2650C

• EPDM rubber, up to 70oC • Terminal unit connections • Heating services • Stainless steel - reference Y11.2660A • Stainless steel with quick release couplings - reference Y11.2660B

• Chilled water services • Stainless steel - reference Y11.2660D • Stainless steel with quick release couplings - reference Y11.2660E

• Rubber - reference Y11.2660F

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220.000 PUMPS 220.010 GENERAL:

• Comply with work section general clauses reference Y20.1000 and those detailed below. • 220.030 PUMP: • Manufacturer and reference Armstrong Pullen • Or approved equivalent

• Provide identical electric driven stand-by pump. • Speed (rpm) 1500 • Centrifugal pumps • Close coupled. Reference Y20.2010C

• Direct drive in-line. Reference Y20.2010D • Positive displacement pump.

Helical pump - reference Y20.2020A • 220.040 PUMP MOTOR DRIVE - ELECTRIC: • Comply with reference section general clauses reference Y92.1000 and those detailed below. • Electrical supply to BS 7697 • Single phase. • Three phase.

• Surge suppressors • Manufacturer fitted - reference Y92.1040A

• Transient suppressors • Manufacturer fitted - reference Y92.1050A

• Operating conditions • Standard operating conditions - reference Y92.2010A

• Motors • General - Reference Y92.2020 • Provide protected enclosures

• Slide rails - Reference Y92.2030 • Plinths - Reference Y92.2040

• Motor efficiency • Class Eff 1 - reference Y92.2025A

• Motor rating • Up to and including 0.75kW - reference Y92.2050A • Above 0.75kW up to and including 4kW - reference Y92.2050B • Above 4kW squirrel cage, drip-proof - reference Y92.2050C • Above 4kW wound rotor, drip-proof - reference Y92.2050D • Above 4kW squirrel cage, totally enclosed - reference Y92.2050E • Above 4kW wound rotor, totally enclosed - reference Y92.2050F • Above 4kW squirrel cage, smoke spill - reference Y92.2050G • Above 4kW squirrel cage, energy efficient design - reference Y92.2050H

• Motors - over temperature protection • Thermistors - reference Y92.2060A • Drives

• Direct coupled drives • Reference Y92.2080A

• Variable speed drive - reference Y92.2085 • Guards

• Reference Y92.2090A

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• 220.045 PUMP MOTOR DRIVE - DIESEL: • Application Fire fighting services • Standard The engine is to be of the multi cylinder balanced compression ignition type capable of operating continuously on full load at site elevation for a period of six hours. • The engine will be air cooled. • Engine cooling will be effected by a direct water cooling system incorporating a header unit. The water supply to the header tank is to be taken from the discharge side of the fire pump. Incorporate all necessary valves to ensure shut off under non operating conditions. • Include for providing the calculations for sizing of the high and low level aspiration louvres. • Equip the engine with two methods of starting. • Automatically by means of a battery powered electric starter motor. • Manually activated electric starter motor.

• Ensure each starting arrangement has its individual relay system and set of batteries with the starter motor common to both arrangements. • Arrange the stop valve so that the engine shut-down mechanism returns automatically to the starting position after use. • Accessories. • Kit of tools in box. • Complete exhaust system with (residential) (domestic) silencer, at one meter, noise limit 60dB(A). • 24 Volt electric starting equipment incorporating motor, two sets of batteries with leads, connectors, and a hydrometer. • Fuel tank of sufficient capacity to allow the engine to run on full load for six hours complete with sediment trap, fuel level gauge, flexible connecting pipe and feed pipe valve complete with facility for locking ion the open position. • Instruction book and parts list.

• 220.046 PUMP MOTOR DRIVE - JOCKEY: • Application Fire fighting service • Design Standard

In-line vertical multi-stage direct mounted motor. • Electrical supply • 3 phase - reference Y72.1010A • (V) 380/420 • (Hz) 50

• Construction • Suction and delivery base • Cast iron.

• Intermediate chambers • Stainless steel.

• Impellers • Stainless steel.

• Shaft seal • Mechanical.

• Intermediate bearings • As manufacturers standard.

• 220.050 PUMP MOTOR STARTER: • Incorporated in Control/monitoring - reference W60. • Comply with reference section general clauses reference Y72.1000 and those detailed below.

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• Electrical supply • 3 phase - reference Y72.1010A • Single phase - reference Y72.1010B

• General • Motors below 0.37kW - reference Y72.2130A

• Motors above 0.37kW - reference Y72.2130B • Direct-on-line type - reference Y72.2150 • Star delta type - reference Y72.2160 • Auto-transformer type • Stator rotor type • Operating cycles per hour

• Inverter type • Reference Y72.2190A

• Automatic changeover for run/standby duty • Single power supply - reference Y72.2200

• Provide system malfunction audible alarm. • Workmanship, installation - reference Y72.3010

• 220.052 PUMP STARTER MOTOR - DIESEL: • Operation • The starter will start the diesel pump automatically upon receipt of a signal and run continuously until shut down manually. • Ensure that the batteries are capable of and that the controller is programmed to give up to six engine cranks, each of 15 seconds duration, separated by dwell periods of 10 seconds. • Ensure that a visible and audible alarm is given should the engine fail to start after the six crank attempts. • Include for an override emergency manual start facility.

• Provide an integral cabinet enclosure having a hinged lockable and mechanically interlocked front access door. • Mount for external access • One isolator operating handle. • Lamps to provide visual indication of • Charger No 1 healthy. • Charger No 2 healthy. • Battery. • Automatic battery failure. • Control circuit healthy. • Auto-start switched off. • Pump on demand. • Pump failed to start. • Low oil pressure.

• Operate manual start test button. • Two ammeters. • Tachometer. • Automatic battery selector switch. • Hours run meter. • Manual start test push button. • Alarm mute push button. • Fault reset push button. • Emergency manual start push button located behind a frangible cover.

• Mount within the enclosure • One A.C. main isolator.

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• Two completely independent, fully automatic constant potential battery chargers with current limiting/short circuit protection and charger failure/battery alarm outputs. • A main printed circuit board fitted with • Auto-start isolation switch. • Two heavy duty cranking relays. • Voltage regulator. • Two control circuit fuses. • Two battery main fuses. • Set of mains, control, and alarm terminals. • Four auxiliary plug-in printed circuit boards.

• 220.055 PUMP STARTER MOTOR - JOCKEY: • Operation • The starter will start the jockey pump automatically upon receipt of a signal indicating a minor drop in pressure within the trunk main and will stop automatically upon receipt of a signal indication that the system pressure has returned to normal.

• Provide an IP55 pressed steel wall mounted starter cabinet • Mount on the panel • On/Off isolator. • Start push button. • Stop push button.

• Mount inside the panel • On/Load isolator • Direct on-line starting triple pole contactor. • Thermal three phase overload unit.

220.060 WORKMANSHIP: General - reference Y20.4010 Pipeline connections - reference Y20.4020 Mount motors and pumps for belt drive pumps resiliently. Alignment - reference Y20.4040 Access - reference Y20.4050 • Maintenance requirements for sewage pumps

Reference Y20.4060 221.000 WATER TANKS/CISTERNS 221.010 GENERAL Comply with work section general clauses reference Y21.1000 and those detailed below. • Provide tanks and cisterns as schedule reference Y21-Water tanks • Location

• Provide tanks and cisterns as schedule reference • Location • At end of this work section.

• 221.040 GLASS REINFORCED PLASTICS SECTIONAL TANK TO BS EN 13280: • Application Water storage • Cold water storage for domestic.

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• Manufacturer and reference Braithwaite • Or approved equivalent

• Sectional A1 - reference Y21.2020A • Sectional A2 - reference Y21.2020B • Sectional B with cover - reference Y21.2020D

• Division plate • Baffle and weir plates • Access ladders • Manholes or access hatches • 600mm square.

• Raised level control valve chamber. • Type and weight of float operated valve • Limiting conditions • Exposed to weather.

• Type of foundation plinths • Special requirements • Venting • Level switches • Alarm facilities • Temperature probes

• 221.050 PREFABRICATED STEEL TANK: • Application Fuel storage • Manufacturer and reference Dorman Long • Or approved equivalent

• Grade A - reference Y21.2030A • Grade B - reference Y21.2030B

• 221.090 ACCESSORIES:

• Contents gauge - reference Y21.3010# • Equipment - reference Y21.3020# 221.100 WORKMANSHIP: • General - reference Y21.4010 • Protection and cleaning - reference Y21.4020 • Inspection and access - reference Y21.4030 • Installation • Sectional steel tanks in accordance with manufacturer's recommendations. • Glass reinforced plastics cisterns with BS EN 13280.

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225.000 CLEANING AND CHEMICAL TREATMENT 225.010 GENERAL: • Comply with work section general clauses reference Y25.1000 and those detailed below.

• 225.030 MAINS WATER ANALYSIS: • Reference Y25.2020A • Carry out an analysis of mains water taken from site supply point to ascertain the following properties:- • Conductivity (uS/cm) • Total Dissolved Solids (mg/l) • pH • Chloride Cl (mg/l) • Calcium Ca (mg/l) • Magnesium Mg (mg/l) • Sodium Na (mg/l) • Potassium K (mg/l) • Total Hardness CaC03 • Alkalinity CaC03 • Total Iron Fe (ug/l) • Copper Cu (ug/l)

• 225.060 CHEMICAL INJECTION AND DOSING METHODS:

• Method of introducing chemicals into closed systems - reference Y25.2060A • Method of introducing chemicals into open recirculating systems - reference Y25.2060B • Packaged plant - reference Y25.2060C • Dosing for closed systems - reference Y25.2060D • Dosing for open systems - reference Y25.2060E • Dosing chemicals - reference Y25.2065 • 225.080 CHEMICAL PROVISION: • Standard arrangement - reference Y25.2080A 225.085 AVOIDANCE OF STAGNANT WATER IN PRESSURISATION UNIT EXPANSION VESSELS: • Reference Y25.2090 • 225.090 FLUSHING: • BSRIA Application Guide 1/2001 - reference Y25.3010A • System filling • Temporary connection from mains in compliance with the Water Supply (Water Fittings) Regulations 1999, and the Water Supply (Water Fittings) (Amendment) Regulations 1999. • Temporary connection from fire hydrant pipework. • By installation of temporary tank and pump arrangement.

• Flushing - reference Y25.3010B • Flush system until discharge water is clear and free from stones or other rubble.

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• 225.100 PURGING: • Testing and purging gas pipework • Industrial and commercial installation - reference Y25.3020A • Small low pressure industrial and commercial installations - reference Y25.3020B

• Testing gas pipework to BS EN 12327 - reference Y25.3020C • 225.120 STERILIZATION: • General - reference Y25.3040 • Mains water system - reference Y25.3050

• Water storage systems - reference Y25.3060 225.140 SERVICE VISITS: • Reference Y25.3080 • Special requirements • Adopt procedures as indicated in HSE L8 Approved Code of Practice and Guidance - Legionnaires' disease - control of legionella bacteria in water systems. • Include for 6 visits during the first 2 months commissioning. • Provide one annual review of system. • Four times per annum send samples to independent laboratory for differential micro-biological analysis. • Include for carrying out all necessary maintenance and inspections during the first twelve months following the agreed date of practical completion. • Use only fully qualified operatives for any maintenance carried out.

225.150 DOCUMENTATION: • Reference Y25.3090

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251.000 TESTING AND COMMISSIONING OF MECHANICAL SERVICES 251.010 GENERAL: • Comply with work section general clauses reference Y51.1000 and those detailed below. • 251.030 STATIC TESTING: • Pressure testing • General - reference Y51.2010 • Water circulating and supply systems and steam and condense lines - reference Y51.2020 • Underground pipework

• Water mains - reference Y51.2040 • Fire risers - reference Y51.2050 • Refrigerant pipework • Strength pressure test - reference Y51.2055A • Leak test - reference Y51.2055B • Deep vacuum test - reference Y51.2055C

• Gas pipework • Pressure testing - reference Y51.2060#

• Oil pipework - reference Y51.2065 • Piped medical gases - reference Y51.2070 • Underslab drainage - reference Y51.2090

• Vacuum testing - reference Y51.2100 • Provide an air compressor and subject the pipework to sectional testing by air at low pressure (not exceeding .5 bars) before commencing any flushing or testing with water. • On completion of all cleaning, flushing and air testing operations, recharge each system with clean water and subject them to sectional hydraulic tests of one and a half times the working pressure. • There is to be no loss of pressure for a period of not less than 30 minutes for each test. • 251.040 COMMISSIONING: • Commissioning codes - reference Y51.3020 • Commissioning • Water distribution • Including BSRIA pre-commissioning check list • Reference Y51.3030A

• Boiler plant - reference Y51.3050 • Gas plant and systems - reference Y51.3055 • Refrigerating systems - reference Y51.3060 • Automatic control systems - reference Y51.3070

• Instruments and gauges • Reference Y51.3090A

Commissioning records • For water systems • To BSRIA Application Guide 2/89.3 - reference Y51.3100B

• BMS commissioning • Control system specification details required for commissioning - reference Y51.3110 • Pre-commissioning - reference Y51.3120 • Plant ready for control system commissioning • Reference Y51.3130A

• Control system requirements for plant commissioning - reference Y51.3140 • Commissioning - reference Y51.3150

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• 251.050 PERFORMANCE TESTING: • System performance testing - reference Y51.4010 • Testing of residential ventilation systems - reference Y51.4015 • Environmental tests • Artificial loads - reference Y51.4020A • Ambient Air Quality - reference Y51.4020B

• Testing to specified conditions • On completion of all static testing carry out a pressure/flow to demonstrate that each system will provide an effective fire fighting jet of 500 litres/min through a 65mm diameter nozzle at a pressure of 4.5 bar measured at the highest outlet. • Any inability to sustain this requirement, or any undue pressure loss in the system must be investigated and any remedial work required carried out. • Provide temporary pumps and if required, a storage tank to enable all Performance Testing to be carried out. • After obtaining and recording the approval of the Fire Officer and the Contract Administrator to the systems, drain down each riser and leave ready for use.

• All performance testing will be witnessed by the Contract Administrator and will consist of • Localised smoke puff tests on selected detectors in all zones to ensure all aspects of the electrical installation, plunger actuation and fire damper operation react as required.

• The gas bottles will be disconnected during all performance testing.

S10 - COLD WATER


252.000 VIBRATION ISOLATION MOUNTINGS 252.010 GENERAL: • Comply with work section general clauses reference Y52.1000 and those detailed below. • 252.020 MAT AND PAD MOUNTINGS:

• Configured mat mountings • Neoprene/composite fibre/synthetic rubber • Reference Y52.2010A

• Natural rubber - reference Y52.2010B • High temperature synthetic rubber • Reference Y52.2010C

• Resilient mat mountings • Cast in base - reference Y52.2010D

• Pad mountings • Composite synthetic rubber - reference Y52.2010E • 252.030 MOUNTINGS:

• Turret compression mountings • Synthetic rubber - reference Y52.2020A • Lockable facility - reference Y52.1040

• Neoprene - reference Y52.2020B • Lockable facility - reference Y52.1040

• Spring compression mountings - reference Y52.2030 • Lockable facility - reference Y52.1040

• Captive spring mountings - reference Y52.2040 • 252.040 EQUIPMENT HANGINGS:

• Turret compression hangers • Synthetic rubber - reference Y52.2050A • Lockable facility - reference Y52.1040


• Spring compression hangers - reference Y52.2060 • Lockable facility - reference Y52.1040

• Combined turret/spring compression hangers • Synthetic rubber - reference Y52.2070A • Lockable facility - reference Y52.1040


• 252.050 PIPEWORK HANGERS:

• Turret compression hangers • Synthetic rubber - reference Y52.2050A • Lockable facility - reference Y52.1040


• Spring compression hangers - reference Y52.2060 • Lockable facility - reference Y52.1040

S10 - COLD WATER


• Combined turret/spring compression hangers • Synthetic rubber - reference Y52.2070A • Lockable facility - reference Y52.1040


• 252.060 HORIZONTALLY RESTRAINED SPRING MOUNTINGS:

• Horizontally restrained spring mountings • Reference Y52.2080 • Lockable facility - reference Y52.1040

• 252.070 INERTIA BASES:

• Reinforced concrete - reference Y52.2090A • Lockable facility - reference Y52.1040

• Welded steel frame - reference Y52.2090B • Lockable facility - reference Y52.1040

• Reference Y52.2090# • 252.080 VIBRATION ISOLATION HOSES:

• Vibration isolation hoses - reference Y52.2100 • 252.090 PIPEWORK NOISE VIBRATION ISOLATION:

• Natural corkwood - reference Y52.2110A • Reconstituted corkwood granules - reference Y52.2110B • Rubber matting - reference Y52.2110C 252.100 WORKMANSHIP: • Horizontally restrained spring mountings - reference Y52.3040 • 252.110 PIPE, WALL AND RISER SEALS:

• Sponge foam packing - reference Y52.2120A • Mineral fibre packing - reference Y52.2120B

S10 - COLD WATER


254.000 IDENTIFICATION - MECHANICAL 254.010 GENERAL: • Comply with work section general clauses reference Y54.1000 and those detailed below. 254.020 PIPEWORK IDENTIFICATION: Reference Y54.2010 • 254.040 PLANT AND EQUIPMENT IDENTIFICATION: • Lettering • Laminated plates, multi-coloured with outer layer removed for lettering - reference Y54.2030B

254.045 GRAPHICAL SYMBOLS FOR USE ON EQUIPMENT IN ACCORDANCE WITH BS EN 80416: Reference Y54.2035 254.050 VALVE AND COCK IDENTIFICATION: Reference Y54.2040 254.080 AIR VOLUME REGULATING AND CONTROL DAMPER IDENTIFICATION: Reference Y54.2070 254.090 INSTRUMENT IDENTIFICATION: Reference Y54.2080 254.100 DANGER AND WARNING NOTICES: Reference Y54.2090 • 254.110 SYSTEM IDENTIFICATION INSTALLATION CHARTS: • Perspex sheet glazing with frame - reference Y54.2100A • Hardboard in hardwood frame and glazed - reference Y54.2100B

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290.000 FIXING TO BUILDING FABRIC 290.010 GENERAL: • Comply with work section general clauses reference Y90.1000 and those detailed below. • 290.020 FIXINGS: • Standards - reference Y90.2010 • Plugs - reference Y90.2020 • Screws - reference Y90.2030

• Non-penetrative support systems - reference Y90.2080 • 290.030 WORKMANSHIP: • Drilling - reference Y90.3010 • Fixing to timber rails - reference Y90.3050 • Fixing to hollow stud/tile/block wall • Reference Y90.3060A

• Fixing to concrete, brickwork or block work • Reference Y90.3070A

• Fixing to metalwork • Reference Y90.3080A

• Fixing to structural steelwork and concrete structures • Reference Y90.3090A

• Non-penetrative support systems for roof mounted equipment - reference Y90.3100#

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291.000 OFF-SITE PAINTING AND ANTI-CORROSION TREATMENT 291.010 GENERAL Comply with work section general clauses reference Y91.1000 and those detailed below. • Carry-out off-site painting and anti-corrosion treatment as work section • 291.020 PAINT MATERIALS: • Paint materials • Reference Y91.2010A

• Paint quality - reference Y91.2020

S10 - COLD WATER


PART 3 SPECIFICATION CLAUSES SPECIFIC TO S10 300.000 PRODUCTS/MATERIALS 300.001 PRESSURE EQUIPMENT DIRECTIVE/PRESSURE EQUIPMENT REGULATIONS: All equipment and assemblies which fall within the scope of the Pressure Equipment Directive (PED) 97/23/EC, implemented in the UK through The Pressure Equipment Regulations 1999, must be tested by the manufacturers, and be certified as compliant with the Directive. Such compliance shall be evidenced by displaying the appropriate CE Mark on the equipment and assemblies. Only relevant equipment and assemblies certified as compliant will be permitted under this specification, and any substitution put forward must also be compliant with the Directive. 300.005 APPROVALS: Ensure all water fittings and materials are listed in the Water Fittings and Materials Directory published by WRAS. • 300.010 WATER METERS:

• Install a water meter to the incoming mains supply. Locate the meter to allow for easy access for meter reading by the building's occupants. • Standard - BS EN 14154. • Provide full flow accumulative type water meter with dial indicator to record quantity of water passed. Enclose mechanism of each meter within a cast iron body with a helical vane mounted centrally in the body of the meter. Supply an interchangeable pattern mechanism. Incorporate, as an integral part of each meter, a water guide at inlet to direct water evenly on to helical vane. Provide each meter with zeroing device. • Provide isolating valves on either side of each meter, and full-bore valved by-pass installed around meter assembly. • Provide facility for remote monitoring. • 300.015 LEAK DETECTION SYSTEM: • Install an automatic shut-off system to ensure no further water is delivered. • Supply and install a leak detection system at the basements. Link the system to an integral alarm system • 300.040 SAFETY SHOWERS: • Manufacturer and reference • Safety drench. • Plumbed-in type, to BS EN 15154-1.

• Eye wash. • Plumbed-in type, to BS EN 15154-2. • 300.060 PRESSURE BOOSTER SETS: • Manufacturer and reference Armstrong Pullen • Or approved equivalent

Provide pressure booster set complete with multiple pumps, pre-wired duty/standby control panel and interconnecting pipework. • Pipework arrangement

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• Use plant/pipework arrangement with re-circulating circuits to avoid stagnant water in pressurisation unit expansion vessel. • Include an accumulator to increase pump rest time and reduce hydraulic shock at closed valve.

• Use full flow-through type accumulator vessels to avoid stagnant water in drinking applications. 310.000 WORKMANSHIP 310.010 CONNECTIONS TO TAPS AND APPLIANCES: • Make final connections to taps and appliances 310.020 INSTALLATION OF WATER COOLERS: Install water coolers in accordance with manufacturer's instructions. 310.030 INSTALLATION OF PRESSURE BOOSTER SETS: Install pressure booster sets in accordance with manufacturer's recommendations. 310.050 ISOLATION: Fit isolating valve at each hose reel. 310.070 EXCAVATION: Excavate in a clean and organised manner. Schedule with other site activities to provide controlled access and minimal tracking of soil over the site. Set out and use sight boards to ensure uniform falls. Separate top soil and set aside for later use. Excavate trench width to a minimum of 300mm above the top of the pipe barrel within indicated limits. Keep available materials for adequate shoring when excavation depth over 1.2m is intended in accordance with The Construction (General Provision) Regulations. Where rock is encountered in trench bottoms designed as Class D bedding further excavate to the depth necessary to receive Class F. Backfill over-excavation, whether intentional at soft spots or accidental with rubble. Spoil, which is either in excess of or does not fulfil the requirements for selected fill. • Place in spoil heaps.

S10 - COLD WATER


BS APPENDIX BS 21:1985 Specification for pipe threads for tubes and fittings where pressure-tight joints are made on the threads (metric dimensions).

Partially superseded by BS EN 10226-1:2004 BS 381C:1996 Specification for colours for identification, coding and special purposes BS 4368-1:1998 Metallic tube connectors for fluid power and general use. Part 1 Split collet compression fittings BS 4508-1:1986 Thermally insulated underground pipelines. Part 1 Specification for steel cased systems with air gap BS 476-7:1997 Fire tests on building materials and structures. Part 7 Method of test to determine the classification of the surface spread of flame of products BS 5154:1991 Specification for copper alloy globe, globe stop and check, check and gate valves.

Partially replaced by BS EN 12288:2003 BS 5158:1989 Specification for cast iron plug valves BS 5422:2009 Method for specifying thermal insulating materials for pipes, tanks, vessels, ductwork and equipment operating within the temperature range -40 degree C to +700degree C BS 7697:1993 Nominal voltages for low voltage public electricity supply systems BS EN 10226-1:2004 Pipe threads where pressure tight joints are made on the threads. Part 1 Taper external threads and parallel internal threads. Dimensions, tolerances and designation BS EN 10253-1:1999 Butt-welding pipe fittings. Part 1 Wrought carbon steel for general use and without specific inspection requirements BS EN 10253-2:2007

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Butt-welding pipe fittings. Part 2 Non alloy and ferritic alloy steels with specific inspection requirements BS EN 10255:2004 Non-alloy steel tubes suitable for welding or threading. Technical delivery conditions BS EN 1092-1:2007 Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated. Part 1 Steel flanges BS EN 1092-2:1997 Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated. Part 2 Cast iron flanges BS EN 1092-3:2003 Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated. Part 3 Copper alloy flanges BS EN 1171:2002 Industrial valves. Cast iron gate valves BS EN 1213:2000 Building valves. Copper alloy stopvalves for potable water supply in buildings. Tests and requirements BS EN 12288:2003 Industrial valves. Copper alloy gate valves. BS EN 12327:2000 Gas supply systems. Pressure testing, commissioning and decommissioning procedures. Functional requirements BS EN 12334:2001 Industrial valves. Cast iron check valves BS EN 1254-2:1998 Copper and copper alloys. Plumbing fittings. Part 2 Fittings with compression ends for use with copper tubes BS EN 1254-3:1998 Copper and copper alloys. Plumbing fittings. Part 3 Fittings with compression ends for use with plastics pipes BS EN 13190:2001

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Thermal insulation products for buildings. Factory made products of phenolic foam (PF). Specification BS EN 13280:2001 Specification for glass fibre reinforced cisterns of one-piece and sectional construction, for the storage, above ground, of cold water BS EN 13789:2002 Industrial valves. Cast iron globe valves BS EN 13828:2003 Building valves. Manually operated copper alloy and stainless steel ball valves for potable water supply in buildings. Tests and requirements BS EN 14451:2005 Devices to prevent pollution by backflow of potable water. In-line anti-vacuum valves DN 8 to DN 80. Family D, type A BS EN 15154-1:2006 Emergency safety showers. Part 1 Plumbed-in body showers for laboratories BS EN 15154-2:2006 Emergency safety showers. Part 2 Plumbed-in eye wash units BS EN 1947:2002 Fire-fighting hoses. Semi-rigid delivery hoses and hose assemblies for pumps and vehicles BS EN 1984:2000 Industrial valves. Steel gate valves BS EN 253:2009 District heating pipes. Preinsulated bonded pipe systems for directly buried hot water networks. Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene BS EN 593:2004 Industrial valves. Metallic butterfly valves BS EN 694:2001 Fire-fighting hoses. Semi-rigid hoses for fixed systems BS EN ISO 228-1:2003 Pipe threads where pressure-tight joints are not made on the threads. Part 1 Dimensions, tolerances and designation

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BS ISO 17484-1:2006 Plastics piping systems. Multi-layer pipe systems for indoor gas installations with a maximum operating pressure up to and including 5 bar (500 kPa). Part 1 Specifications for systems BS ISO 4437:2007 Buried polyethylene (PE) pipes for the supply of gaseous fuels. Metric series. Specifications BS ISO 9000-2:1997 Quality management and quality assurance standards. Generic guidelines for the application of ISO 9001, ISO 9002 and ISO 9003 ISO 7-1:1994 Pipe threads where pressure-tight joints are made on the threads. Part 1 Dimensions, tolerances and designation

S11 - HOT WATER


S11 HOT WATER THIS WORK SECTION SHALL BE READ IN CONJUNCTION WITH WORK SECTION S10 – COLD WATER. CLAUSES COMMON TO THE WORK SECTIONS ARE NOT NECESSARILY REPEATED HERE. PART 1 - SYSTEM OBJECTIVES 100.010 PERFORMANCE OBJECTIVES The hot water demand shall be met by the use of electric water heaters 100.030 SYSTEM DESCRIPTION Hot Water Supply 1. The hot water system shall comprise of:

The hot water heaters The distribution network

2. The heater shall be totally insulated against heat loss. 3. Hot water shall generally be supplied to the kitchens and the kitchenettes on each floor.

There shall be no supply to the washbasins as the temperature of the cold water supply shall generally be above 20oC.

Hot Water Distribution 1. Water feed to the heaters shall be from the cold water distribution system. A vacuum break

shall be provided on the connection to the heaters. 2. Supplies to all fixtures will also be fitted with isolating valves. PART 3 SPECIFICATION CLAUSES SPECIFIC TO S11 300.000 PRODUCTS/MATERIALS 300.001 PRESSURE EQUIPMENT DIRECTIVE/PRESSURE EQUIPMENT REGULATIONS: All equipment and assemblies which fall within the scope of the Pressure Equipment Directive (PED) 97/23/EC, implemented in the UK through The Pressure Equipment Regulations 1999, must be tested by the manufacturers, and be certified as compliant with the Directive. Such compliance shall be evidenced by displaying the appropriate CE Mark on the equipment and assemblies. Only relevant equipment and assemblies certified as compliant will be permitted under this specification, and any substitution put forward must also be compliant with the Directive.

S11 - HOT WATER


300.005 APPROVALS: Ensure all water fittings and materials are listed in the Water Fittings and Materials Directory published by WRAS. • 300.020 INSTANTANEOUS WATER HEATER(S): • Manufacturer and reference Ariston • Or approved equivalent • Supply and install

• Electric instantaneous water heater to BS EN 60335-2-35. • Service • Single point. • Multipoint.

• Water supply • Mains.

• Casing finish • White vitreous enamel.

300.050 THERMOSTATIC MIXING VALVES: • Standard • BS EN 1111 • Type 1 - single control. • Type 2 - dual control. • Type 3 - single sequential control.

• BS EN 1287 for low pressure • Type 1 - single control. • Type 2 - dual control. • Type 3 - single sequential control.

• BS 7942 for use in care establishments. • Type a, both flow control and user adjustment of mixed water temperature. • Type b, flow control and pre-set mixed water temperature. • Type c, without flow control and with pre-set temperature.

310.000 WORKMANSHIP 310.020 CONNECTIONS TO TAPS AND APPLIANCES: Make final connections to taps and appliances 310.030 WATER HEATER INSTALLATION: Comply with manufacturer's instructions and recommendations for the installation of heater. • Locate heater with adequate surrounding space for service and maintenance. 310.040 INSTALLATION OF MIXING VALVES: Install thermostatic mixing valves and mechanical mixing valves in accordance with manufacturer's recommendations.

S11 - HOT WATER


BS APPENDIX BS 6144:1990 Specification for expansion vessels using an internal diaphragm, for unvented hot water supply systems BS 7074-1:1989 Application, selection and installation of expansion vessels and ancillary equipment for sealed water systems. Part 1 Code of practice for domestic heating and hot water supply BS 7074-2:1989 Application, selection and installation of expansion vessels and ancillary equipment for sealed water systems. Part 2 Code of practice for low and medium temperature hot water heating systems BS 7942:2000 Thermostatic mixing valves for use in care establishments BS EN 1111:1999 Sanitary tapware. Thermostatic mixing valves (PN 10). General technical specification BS EN 1287:1999 Sanitary tapware. Low pressure thermostatic mixing valves. General technical specifications BS EN 60335-2-35:2002 Specification for safety of household and similar electrical appliances. Part 2-35 Particular requirements. Particular requirements for instantaneous water heaters

S40 - PETROL/DIESEL STORAGE/DISTRIBUTION


S40 PETROL/DIESEL STORAGE/DISTRIBUTION THIS WORK SECTION SHALL BE READ IN CONJUNCTION WITH WORK SECTION S10 – COLD WATER. CLAUSES COMMON TO THE WORK SECTIONS ARE NOT NECESSARILY REPEATED HERE. PART 1 - SYSTEM OBJECTIVES 100.010 PERFORMANCE OBJECTIVES The service shall provide diesel fuel for the running of the oil fired steam boilers and the standby power generators. 100.030 SYSTEM DESCRIPTION 1. The diesel fuel service shall comprise:

• Bulk storage tanks, installed at the service yard • Transfer pumps • Daily storage tanks for the generators

2. All transfer pumps shall be of the positive displacement types and shall be automatically

controlled by the float level switches and line pressure controllers. 3. The tank enclosure shall also be ‘tanked’ or bunded. This is to prevent a spill from

percolating to the surrounding space.



PART 3 SPECIFICATION CLAUSES SPECIFIC TO S40 300.000 GENERAL 300.001 PRESSURE EQUIPMENT DIRECTIVE/PRESSURE EQUIPMENT REGULATIONS: All equipment and assemblies which fall within the scope of the Pressure Equipment Directive (PED) 97/23/EC, implemented in the UK through the Pressure Equipment Regulations 1999, must be tested by the manufacturers, and be certified as compliant with the Directive. Such compliance shall be evidenced by displaying the appropriate CE Mark on the equipment and assemblies. Only relevant equipment and assemblies certified as compliant will be permitted under this specification, and any substitution put forward must also be compliant with the Directive. 310.000 PRODUCTS/MATERIALS • 310.010 STORAGE TANKS AND VESSELS: • Cathodic protection to BS EN 13636.

• 310.045 LEAK DETECTION SYSTEM: • Standards • BS EN 13160

• Supply and install a leak detection system in the petrol/diesel storage/distribution system. Link the system to an integral alarm system.

Install an automatic shut-off system to ensure no further petrol/diesel is delivered. 320.000 WORKMANSHIP 320.010 INSTALLATION: Install petrol/diesel storage/distribution equipment in accordance with manufacturer's recommendations.



BS APPENDIX BS EN 13636:2004 Cathodic protection of buried metallic tanks and related piping

S60 - FIRE HOSE REELS


S60 FIRE HOSE REELS THIS WORK SECTION SHALL BE READ IN CONJUNCTION WITH WORK SECTION S10 – COLD WATER. CLAUSES COMMON TO THE WORK SECTIONS ARE NOT NECESSARILY REPEATED HERE. PART 1 - SYSTEM OBJECTIVES 100.010 PERFORMANCE OBJECTIVES The installation of the hose reel system shall meet the fire fighting requirement of the development 100.020 DESIGN PARAMETERS The design shall conform to BS 5306 Part 1 100.030 SYSTEM DESCRIPTION A full description of the fire fighting installation is given under Work section S63 - Sprinklers.



PART 3 SPECIFICATION CLAUSES SPECIFIC TO S60 300.000 GENERAL 300.001 PRESSURE EQUIPMENT DIRECTIVE/PRESSURE EQUIPMENT REGULATIONS: All equipment and assemblies which fall within the scope of the Pressure Equipment Directive (PED) 97/23/EC, implemented in the UK through the Pressure Equipment Regulations 1999, must be tested by the manufacturers, and be certified as compliant with the Directive. Such compliance shall be evidenced by displaying the appropriate CE Mark on the equipment and assemblies. Only relevant equipment and assemblies certified as compliant will be permitted under this specification, and any substitution put forward must also be compliant with the Directive. 300.010 STANDARDS: Comply with BS 5306-1. 300.020 FIRE AUTHORITY REQUIREMENTS: Ensure all system components are approved by local Fire Authority and bear Water Authority's stamp of approval and, where required, that of Fire Authority. 310.000 PRODUCTS/MATERIALS • 310.010 FIRE HOSE REELS: • Manufacturer and reference Angus, SRI • Or approved equivalent • Standard - BS EN 671. • Mounting • Fixed. • Swinging arm. • Concealed.

• Operation • Automatic. • Manual interlocked with water supply.

• Hose - Comply with BS EN 694 and BS EN 1947. Provide each reel with smooth bore non-kink rubber or plastics hose. • Hose diameter • 19mm.

• Hose length (m) 30 and 40 Ensure hose is rated for distribution pressures. Terminate with an outlet nozzle of type approved by local Fire Brigade.

• Finish Post Office red No. 538 to BS 381C.

• Fire hose reel cabinets • 310.020 FIRE HOSE REEL PUMP SET: • Manufacturer and reference Armstrong Pullen • Or approved equivalent • Duty



• Power supply to BS 7697 • Single Phase. • Provide a self-contained fully automatic packaged unit mounted on a common base plate, fed from • an independent tank.

• Components • Duty and standby pumps. • Pressure vessel with diaphragm. • Integral wiring and control panel. • Interconnecting pipework, valves and fittings. • Anti-vibration mountings.

• 310.030 CONTROL PANEL: • Enclosure

Fabricate from mild steel sheet and ensure enclosure is damp proof and dust proof. • Components • Two starters, one for each pump. • Test/Off/Auto switch. • Automatic change-over switch. • Duty selector switch. • Timer to ensure minimum 'run' period. • Indicator lamps to indicate power available, running, tripped and low water condition. • Contacts for remote indication and alarms. • Lockable door and door interlocked isolator.

• 310.040 FLOW SWITCH: • Application

Install a flow switch in the common discharge manifold and wire into the control panel. 310.050 INSTALLATION OF FIRE HOSE REEL PUMP SETS: Install fire hose reel pump sets in accordance with BS 5306-1and manufacturer's recommendations. 320.000 WORKMANSHIP 320.010 INSTALLATION: Install and test hose reel system in accordance with BS 5306-1, Section 6. Install, test and commission all fire protection systems to requirements of local Fire Authority. 320.020 FIXING: Establish fixing details prior to ordering. Fit nozzle retainer, hose guide and isolating valve at about 900mm above floor level where hose reels are located at high level. 320.030 ISOLATION: Fit isolating valve at each hose reel.



• 320.040 NOTICES: • Automatic Operation • Fix a laminated plastic notice close to each hose reel to read, in 5mm block lettering, `IMPORTANT - PULL HOSE FROM REEL AND WATER WILL TURN ON AUTOMATICALLY'.

• Manual Operation • Fix a notice close to each hose reel to BS EN 671.



BS APPENDIX BS 381C:1996 Specification for colours for identification, coding and special purposes BS 5306-1:2006 Code of practice for fire extinguishing installations and equipment on premises. Part 1 Hose reels and foam inlets BS 7697:1993 Nominal voltages for low voltage public electricity supply systems BS EN 1947:2002 Fire-fighting hoses. Semi-rigid delivery hoses and hose assemblies for pumps and vehicles BS EN 694:2001 Fire-fighting hoses. Semi-rigid hoses for fixed systems

S61 - DRY RISERS


S61 DRY RISERS THIS WORK SECTION SHALL BE READ IN CONJUNCTION WITH WORK SECTION S10 – COLD WATER. CLAUSES COMMON TO THE WORK SECTIONS ARE NOT NECESSARILY REPEATED HERE. PART 1 SYSTEM OBJECTIVES 100.010 PERFORMANCE OBJECTIVES The installation of the dry riser system shall meet the fire fighting requirement of the development 100.020 DESIGN PARAMETERS The system shall be installed in accordance with BS 9990 100.030 SYSTEM DESCRIPTION A full description of the fire fighting installation is given under Work section S63 - Sprinklers.

S61 - DRY RISERS


PART 3 SPECIFICATION CLAUSES SPECIFIC TO S61 300.000 GENERAL 300.001 PRESSURE EQUIPMENT DIRECTIVE/PRESSURE EQUIPMENT REGULATIONS: All equipment and assemblies which fall within the scope of the Pressure Equipment Directive (PED) 97/23/EC, implemented in the UK through the Pressure Equipment Regulations 1999, must be tested by the manufacturers, and be certified as compliant with the Directive. Such compliance shall be evidenced by displaying the appropriate CE Mark on the equipment and assemblies. Only relevant equipment and assemblies certified as compliant will be permitted under this specification, and any substitution put forward must also be compliant with the Directive. 300.010 STANDARDS: Comply with BS 9990 and BS 9999. 300.020 FIRE AUTHORITY REQUIREMENTS: Ensure all system components are approved by local Fire Authority and bear Water Authority's stamp of approval and, where required, that of Fire Authority. 300.040 BONDING: Incorporate provision for earth bonding. 310.000 PRODUCTS/MATERIALS • 310.010 INLET BREECHINGS: • Manufacturer and reference Angus • Or approved equivalent • Standard

BS 5041-3. • Components • Instantaneous inlet couplings to BS 336. • Protecting cap retained by a chain. • Non-return valve. • Drain valve. • Breeching • Four-way breeching for 150mm riser.

• Inlet box • Standard

BS 5041-5, to suit breeching inlet. • Components • Wired glazed door with lock. • Identification.

• 310.020 LANDING VALVES: • Manufacturer and reference Angus • Or approved equivalent

S61 - DRY RISERS


• Location • Located 750mm above floor level.

• Standard BS 5041-2.

• Connection Flanged

• Components • Instantaneous coupling to BS 336. • Protecting cap with retaining chain. • Leather strap and padlock to secure valve in closed position.

• Outlet boxes Install landing valves in purpose made outlet boxes. • Standard

BS 5041-4. • Material • Painted steel.

• Size To match valve configuration.

• Components • Wire glazed door with spring cylinder lock.

• 310.025 ISOLATING VALVES: • Install monitored Isolating Valves in each system at intervals not exceeding 10m so that sections of the fire main can be isolated. Secure each valve in the open position by a chain and paddock with matching keys. • 310.030 DRAIN VALVES: • Manufacturer and reference Angus • Or approved equivalent

• Standard BS 5041-3. Secure a notice in inlet box to locate system drain valves in accordance with BS 5041-5.

320.000 WORKMANSHIP 320.010 INSTALLATION OF DRY RISERS: Install and test dry risers in accordance with BS 9990. Install, test and commission all fire protection systems to requirements of local Fire Authority. Make changes in direction with bends or long radius fittings. Extend rising main progressively as building works proceed. 320.020 INSTALLATION OF INLET BOXES: Install inlet boxes in position indicated on drawings. 320.030 SITING OF LANDING VALVES: Provide landing valves in positions indicated on drawings. • Siting • Within a ventilated lobby of a lobby approach stairway. • In a stairway enclosure.

S61 - DRY RISERS


BS APPENDIX BS 336:1989 Specification for fire hose couplings and ancillary equipment BS 5041-2:1987 Fire hydrant systems equipment. Part 2 Specification for landing valves for dry risers BS 5041-3:1975 Fire hydrant systems equipment. Part 3 Specification for inlet breechings for dry riser inlets BS 5041-4:1975 Fire hydrant systems equipment. Part 4 Specification for boxes for landing valves for dry risers BS 5041-5:1974 Fire hydrant systems equipment. Part 5 Specification for boxes for foam inlets and dry riser inlets BS 9990:2006 Code of practice for non-automatic fire-fighting systems in buildings BS 9999:2008 Code of practice for fire safety in the design, management and use of buildings

S65 - FIRE HYDRANTS


S65 FIRE HYDRANTS THIS WORK SECTION SHALL BE READ IN CONJUNCTION WITH WORK SECTION S10 – COLD WATER. CLAUSES COMMON TO THE WORK SECTIONS ARE NOT NECESSARILY REPEATED HERE. PART 1 SYSTEM OBJECTIVES 100.010 PERFORMANCE OBJECTIVES The installation of the hydrant system shall meet the fire fighting requirement of the development

S65 - FIRE HYDRANTS


PART 3 SPECIFICATION CLAUSES SPECIFIC TO S65 300.000 GENERAL 300.001 PRESSURE EQUIPMENT DIRECTIVE/PRESSURE EQUIPMENT REGULATIONS: All equipment and assemblies which fall within the scope of the Pressure Equipment Directive (PED) 97/23/EC, implemented in the UK through the Pressure Equipment Regulations 1999, must be tested by the manufacturers, and be certified as compliant with the Directive. Such compliance shall be evidenced by displaying the appropriate CE Mark on the equipment and assemblies. Only relevant equipment and assemblies certified as compliant will be permitted under this specification, and any substitution put forward must also be compliant with the Directive. 300.010 STANDARDS: Comply with BS 9990 and BS 9999. 300.020 FIRE AUTHORITY REQUIREMENTS: Ensure all system components are approved by local Fire Authority and bear Water Authority's stamp of approval and, where required, that of Fire Authority. 310.000 PRODUCTS/MATERIALS • 310.010 HYDRANTS: • Manufacturer and reference Angus • Or approved equivalent • Standard • BS 9990. • BS EN 14384.

• 310.020 UNDERGROUND HYDRANTS: • Manufacturer and reference Angus • Or approved equivalent • Standard • Provide underground hydrants in accordance with BS 750 and BS EN 14339. • Provide surface box frame and cover in accordance with BS 750 and BS EN 14339. • Indicate position of hydrant by use of a plate in accordance with BS 3251.

320.000 WORKMANSHIP 320.010 HYDRANTS: Install and test fire hydrants in accordance with BS 9990. Install test and commission all fire protection systems to requirements of local Fire Authority.

S65 - FIRE HYDRANTS


BS APPENDIX BS 3251:1976 Specification for indicator plates for fire hydrants and emergency water supplies BS 750:2006 Specification for underground fire hydrants and surface box frames and covers BS 9990:2006 Code of practice for non-automatic fire-fighting systems in buildings BS 9999:2008 Code of practice for fire safety in the design, management and use of buildings BS EN 14339:2005 Underground fire hydrants. Partially supersedes BS 750:1984 BS EN 14384:2005 Pillar fire hydrants

REFERENCE Y-SECTIONS

Y10 - PIPELINES


Y10 PIPELINES Y10.1000 GENERAL • Supply pipes and fittings as specified in work section • Supply pipes and fittings as schedule reference N13-Sanitary appliances and fittings • Location • As schedule reference 1010 PRE-FABRICATED PIPEWORK: Supply pre-fabricated pipework in accordance with relevant materials and workmanship clauses. 1020 FITTINGS: For changes in direction use centreline radius/nominal bore of not less than 1.5 unless otherwise directed. For reductions and enlargements use easy transition type with inclined angle not exceeding 30 degrees. 1030 FABRICATED FITTINGS: Use only with approval, if manufacturer's standard fittings are not available. 1040 PIPE JOINTS: Obtain approval for Local Water Authority or Water Research Centre for materials used in water supplies. Y10.2010A HEAVY BLACK STEEL PIPES TO BS EN 10255: Material - Steel Standard - BS EN 10255 Dimensions - Heavy. Random single lengths, 4m to 7m. Ends - Screwed to BS 21 and BS EN 10226-1, taper thread or plain. Finish - Varnished. Y10.2010B MEDIUM BLACK STEEL PIPES TO BS EN 10255: Material - Steel Standard - BS EN 10255 Dimensions - Medium. Random single lengths, 4m to 7m. Ends - Screwed to BS 21 and BS EN 10226-1, taper thread or Plain. Finish - Varnished. Y10.2010C MEDIUM GALVANISED STEEL PIPES TO BS EN 10255: Material - Steel Standard - BS EN 10255 Dimensions - Medium. Random single lengths, 4m to 7m. Ends - Screwed to BS 21 and BS EN 10226-1, taper thread. Finish - Galvanised. Y10.2010D HEAVY GALVANISED STEEL PIPES TO BS EN 10255: Material - Steel Standard - BS EN 10255 Dimensions - Heavy. Random single lengths, 4m to 7m. Ends - Screwed to BS 21 and BS EN 10226-1, taper thread. Finish - Galvanised. Y10.2010H MEDIUM GALVANISED STEEL PIPES TO BS EN 10255 - GROOVED ENDS: Material - Steel Standard - BS EN 10255 Dimensions - Medium. Random single lengths, 4m to 7m. Ends - Grooved for mechanical joints. Finish - Galvanised.

Y10 - PIPELINES


Y10.2020A STEEL FITTINGS - SCREWED BENDS AND SPRINGS TO BS EN 10255: Material - Steel grade, seamless. Standard - BS EN 10255. Size range - 6mm to 150mm. Dimensions - BS EN 10255, medium weight. Ends - Screwed to BS 21 and BS EN 10226-1. Finish - Galvanised. Y10.2060A HEAVY WEIGHT CARBON STEEL FITTINGS, BUTT WELDED TO BS EN 10253: Material Carbon steel, grade 430, electric resistance welded. Standard - BS EN 10253-1 or BS EN 10253-2. Size range - 25mm to 400mm. Dimensions - BS EN 10253-1 or BS EN 10253-2 Heavy Ends - Bevelled. Finish - Varnished. Y10.2060B MEDIUM WEIGHT CARBON STEEL FITTINGS, BUTT WELDED TO BS EN 10253: Material Carbon steel, grade 430, electric resistance welded. Standard - BS EN 10253-1 or BS EN 10253-2. Size range - 25mm to 400mm. Dimensions - BS EN 10253-1 or BS EN 10253-2 Medium. Ends - Bevelled. Finish - Varnished. Y10.2070A MALLEABLE CAST IRON FITTINGS, SCREWED: Material - Cast iron to BS EN 1562. Standard - BS 143 & 1256 or BS EN 10242. Size range - 10mm to 164mm. Dimensions - BS 143 & 1256 or BS EN 10242. Ends - screwed to BS 21 and BS EN 10226-1. Finish - Black Y10.2070B GALVANISED MALLEABLE CAST IRON FITTINGS, SCREWED: Material - Cast iron to BS EN 1562. Standard - BS 143 & 1256 or BS EN 10242. Size range - 10mm to 164mm. Dimensions - BS 143 & 1256 or BS EN 10242. Ends - screwed to BS 21 and BS EN 10226-1. Finish - Galvanized. Y10.2080F PAINTED STEEL FITTINGS, GROOVED FOR MECHANICAL JOINTS: Material - Steel fittings to ASTM A-53. Standard - Manufacturer's. Size range - 20mm to 600mm. Ends - Grooved for mechanical joints. Finish - Painted. Y10.2200# CARBON & STAINLESS STEEL COMPRESSION COUPLINGS TO BS 4368-1: • Material

• Non alloy and alloy steel • BS EN 10216-1. • BS EN 10216-2.

Y10 - PIPELINES


• BS EN 10217-1. • BS EN 10217-2. • BS EN 10217-3. • BS EN 10217-5.

• Stainless steel to BS EN 10216-5 and BS EN 10217-7. • Standard

• BS 4368-1, type A. • BS 4368-1, type B. • BS 4368-1, type C.

• Size range - 6mm to 50mm. • Dimensions - BS 4368-1, tables 4 to 28. • Ends - Plain. • Finish

• Manufacturer's standard to BS EN 12329 or BS EN 12330. • Manufacturer's standard to BS EN 12476. • Coated to BS 7371.

Y10.2250A AUSTENITIC STAINLESS STEEL TO BS EN 10216-5: Material - Austenitic stainless steel, seamless. Standard - BS EN 10216-5. Dimensions - BS EN ISO 1127. Ends - Plain. Finish - Uncoated. Y10.2250B AUSTENITIC STAINLESS STEEL TO BS EN 10217-1: Material - Austenitic stainless steel, welded. Standard - BS EN 10217-7. Dimensions - BS EN ISO 1127. Ends - Plain Finish - Uncoated. Y10.2255A STAINLESS STEEL FITTINGS, GROOVED MECHANICAL JOINTS: Material - Stainless steel grades 304, 316, 316L, 316T, schedules 5S, 10S, 20S, 40S. Standard - Manufacturer's. Size range - 20mm to 600mm. Dimensions - Manufacturer's standard. Ends - Grooved for mechanical joints. Finish - Natural. Y10.2270A COPPER HALF HARD: Kitemarked. Material - Copper. Standard - BS EN 1057, R250, (Class X). Dimensions - BS EN 1057 table 3. Ends - Plain, grooved for mechanical joints. Finish - Uncoated. Y10.2270B CHROMIUM PLATED COPPER, HALF HARD: Kitemarked. Material - Copper. Standard - BS EN 1057, R250, (Class X). Dimensions - BS EN 1057 table 3. Ends - Plain

Y10 - PIPELINES


Finish - Chromium plated. Y10.2270C POLYETHYLENE SHEATHED COPPER, HALF HARD: Kitemarked. Material - Copper. Standard - BS EN 1057, R250, (Class X). Dimensions - BS EN 1057 table 3. Ends - Plain Finish - Sheathed in profiled white polyethylene. Y10.2290# COPPER, HARD: • Material - Copper. • Standard - BS EN 1057, R290, (Class Z). • Dimensions

• BS EN 1057 table 3. • European recommended dimensions. • Other European dimensions. Lengths R290, range 6mm - 267mm, 3m or 5m.

• Ends - Plain. • Finish

• Uncoated. • Sheathed in white polyethylene. • Sheathed in profiled white polyethylene. • Nickel plated. • Chromium plated. • Tinned inside and outside with pure tin. • Tinned outside with pure tin.

Y10.2290A COPPER, HARD: Material - Copper. Standard - BS EN 1057, R290, (Class Z). Dimensions - BS EN 1057 table 3. Ends - Plain. Finish - Uncoated. Y10.2310A CAPILLARY FITTINGS FOR COPPER TUBING, GENERAL POTABLE RANGE: Material - Copper or dezincifiable resistant copper alloy. Standard - BS EN 1254-1. Size range - 6mm to 67mm. Dimensions - BS EN 1254-1 table 2. Ends - Integral (lead-free) solder ring. Finish - Natural. Y10.2310B CAPILLARY FITTINGS FOR CHROME PLATED COPPER TUBING, POTABLE RANGE: Material - Copper or dezincifiable resistant copper alloy. Standard - BS EN 1254-1. Size range - 6mm to 67mm. Dimensions - BS EN 1254-1 table 2. Ends - Integral (lead-free) solder ring. Finish - Chrome plated. Y10.2310C CAPILLARY FITTINGS FOR COPPER TUBING, HIGH DUTY RANGE: Material - Gunmetal (LG2 and LG4) or aluminium brass.

Y10 - PIPELINES


Standard - BS EN 1254-1. Size range - 6mm to 54mm. Dimensions - BS EN 1254-1 table 2. Ends - Integral (cadmium-free) silver brazing ring. Finish - Natural. Y10.2315A COPPER PRESS FITTINGS FOR COPPER TUBING: Material - Copper or dezincifiable resistant copper alloy. Standard - Manufacturer's standard. Size range - 15mm to 108mm. Dimensions - to suit copper tube to BS EN 1057. Ends - With EPDM O ring for use with water. Finish - Natural. Y10.2315B GUNMETAL PRESS FITTINGS FOR COPPER TUBING: Material - Gunmetal. Standard - Manufacturer's standard. Size range - 15mm to 54mm. Dimensions - to suit copper tube to BS EN 1057. Ends - With EPDM O ring for use with water. Finish - Natural. Y10.2320A TYPE A COMPRESSION FITTINGS FOR COPPER TUBING: Kitemarked. Material - Dezincifiable resistant copper alloy Standard - BS EN 1254-2, type A, non-manipulative. Size range - 6mm to 54mm. Dimensions - BS EN 1254-2, table 2 and 3. Ends - Socket. Finish - Natural. Y10.2320B TYPE A COMPRESSION FITTINGS FOR CHROME PLATED COPPER TUBING: Kitemarked. Material - Dezincifiable resistant copper alloy and brass. Standard - BS EN 1254-2, type A, non - manipulative. Size range - 6mm to 54mm. Dimensions - BS EN 1254-2, table 2 and 3. Ends - Socket. Finish - Chrome plated. Y10.2321A COPPER TABLE X FITTINGS, GROOVED MECHANICAL JOINTS: Material - Copper to BS EN 1057 (table X). Standard - Manufacturer's. Size range - 54mm to 159mm. Dimensions - Manufacturer's standard. Ends - Grooved for mechanical joints. Finish - Uncoated. Y10.2322 CAPILLARY FITTINGS, SHORT, FOR BRAZING TO COPPER TUBING: Material - Dezincifiable resistant copper alloy. Standard - BS EN 1254-5 Size range - BS EN 1254-5 - 67mm to 159mm. Dimensions - BS EN 1254-5, table 2. Ends - Plain. Finish -Natural.

Y10 - PIPELINES


Y10.2350A CAST IRON PIPES AND FITTINGS TO BS 416-1: Material - Cast grey or ductile iron. Standard - BS 416-1, spun. Dimensions - BS 416-1. Ends - Socket type A or B. Finish - Hot dipped to BS 416-1. Y10.2370A CAST IRON PIPES TO BS 437 FOR FLEXIBLE JOINTS: Material - Cast iron. Standard - BS 437. Dimensions - BS 437. Ends - For flexible joint to BS EN 877. Finish - Hot dipped to BS 437. Y10.2380A CAST IRON FITTINGS TO BS 437 FOR FLEXIBLE JOINTS: Material - Cast iron. Standard - BS 437, sand cast. Size range - 50mm to 225mm. Dimensions - BS 437, figures 1 to 66. Ends - For flexible joints to BS EN 877. Finish - Hot dipped to BS 437. Y10.2390A RED CAST IRON PIPES AND FITTINGS TO BS EN 877: Material - Cast iron. Standard - BS EN 877. Dimensions - BS EN 877, table 1. Ends - Plain. Finish - Red epoxy. Y10.2390B GREY CAST IRON PIPES AND FITTINGS TO BS EN 877: Material - Cast iron. Standard - BS EN 877. Dimensions - BS EN 877, table 1. Ends - Plain. Finish - Grey epoxy. Y10.2410A FLANGED DUCTILE IRON PIPES AND FITTINGS TO BS EN 545: Material - Ductile iron. Standard - BS EN 545. Dimensions - Flanged, class K9. Ends - Flanged. Finish - External, zinc rich, with polyethylene sleeving, extruded polyethylene, extruded polypropylene or polyurethane. Internal, polyurethane to BS EN 15189. Y10.2410B DUCTILE IRON PIPES AND FITTINGS TO BS EN 545: Material - Ductile iron. Standard - BS EN 545. Dimensions - Spigot/socket, table 14. Ends - Spigot and socket. Finish - External, zinc rich, with polyethylene sleeving, extruded polyethylene, extruded polypropylene or polyurethane. Internal, polyurethane to BS EN 15189.

Y10 - PIPELINES


Y10.2420A FLANGED DUCTILE IRON PIPES AND FITTINGS TO BS EN 598: Material - Ductile iron. Standard - BS EN 598. Dimensions - Flanged, Class K9. Ends - Flanged. Finish - External, zinc rich, with polyethylene sleeving, extruded polyethylene, extruded polypropylene or polyurethane to BS EN 15189. Internal, high alumina cement mortar. Y10.2420B DUCTILE IRON PIPE AND FITTINGS TO BS EN 598: Material - Ductile iron. Standard - BS EN 598. Dimensions - Spigot/socket, table 11. Ends - Spigot or socket. Finish - External, zinc rich, with polyethylene sleeving, extruded polyethylene, extruded polypropylene or polyurethane to BS EN 15189. Internal, high alumina cement mortar. Y10.2430 LAYERED PIPE AND FITTINGS FOR HOT AND COLD WATER TO BS EN ISO 21003: Material - To BS EN ISO 21003. Standard - Manufacturer's standard. Size range - 16mm to 50mm. Dimension - Manufacturer's standard. Ends - compression. Finish - Black. Y10.2440 MULTILAYERED PLASTICS PIPE SYSTEMS FOR INDOOR GAS INSTALLATIONS TO BS ISO 17484-1: Material - Stress bearing polymeric materials, with or without a metallic layer. Standard - BS ISO 17484-1. Size range - 16mm to 63mm. Dimension - Manufacturer's standard. Fittings - Mechanical, electrofusion. Finish - Manufacturer's standard. Y10.2442 PLASTIC PIPING SYSTEMS TO BS EN 15014: Standard - BS EN 15014. Application - Buried and above ground systems for water (not potable) and other fluids under pressure. Performance characteristics for pipes, fittings and their joints. Performance characteristics - reaction to fire; external pressure strength; internal pressure strength; dimensional tolerance; tightness (air and water); durability; dangerous substances. Y10.2455A PLASTICS PIPING SYSTEMS FOR WATER SUPPLY - PIPES TO BS EN 1452: Material - Unplasticised polyvinyl chloride (PVC-U). Standard - BS EN 1452-2. Dimensions - Length - manufacturer's standard range. BS EN 1452-2 tables 1, 2, 3, 4 and 5. Ends - Plain; elastomeric ring seal socket and spigot; or socket and spigot for solvent cement. Finish - Grey, blue or cream. Y10.2475A PLASTICS PIPING SYSTEMS FOR WATER SUPPLY - FITTINGS TO BS EN 1452: Material - Unplasticised polyvinyl chloride (PVC-U). Standard - BS EN 1452-3. Size range - 12mm to 315mm Dimensions - Length - manufacturer's standard range. BS EN 1452-2 tables 1, 2, 3, 4 and 5.

Y10 - PIPELINES


Ends - Plain; elastomeric ring seal socket and spigot; or socket and spigot for solvent cement. Finish - Grey. Y10.2480A UNPLASTICIZED PVC TO BS 4514: Material - Unplasticized PVC. Standard - BS 4514. Dimensions - BS 4514. Ends - Plain. Finish - Black, grey or white. Y10.2490A UNPLASTICIZED PVC FITTINGS, SOLVENT WELDING TO BS 4514: Material - Unplasticized PVC. Standard - BS 4514, table 2. Size range - 82mm,110mm or 160mm. Dimensions - BS 4514 tables 3 and 5. Ends - Spigot/plain. Finish - Black, grey or white. Y10.2491A ORIENTED UNPLASTICISED PVC TO BS ISO 16422: Material - Unplasticised PVC. Standard - BS ISO 16422. Dimensions - BS ISO 16422. Ends - Plain, socket. Finish - Blue, grey or cream. Y10.2495A PLASTICS PIPING SYSTEMS TO BS EN 1453: Plastics piping system with structured wall pipes for soil and waste discharge (low and high temperature) within the building structure. Material - Unplasticised polyvinyl chloride (PVC-U). Standard - BS EN 1453. Dimensions - Length - manufacturer's standard range. BS EN 1453 tables1, 2 and 3. Ends - Plain; elastomeric ring seal socket and spigot; or socket and spigot for solvent cement. Finish - Grey, black, or white. Y10.2510A COMPRESSION FITTINGS FOR POLYETHYLENE PIPES: Material - Copper/copper alloy (dezincifiable resistant). Standard - BS EN 1254-3 or BS 864-5. Size range - 20mm to 63mm. Dimensions - To suit pipes to BS EN 12201. Ends - Socket. Finish - Cast. Y10.2520 POLYETHYLENE TO BGC/PS/PL2 AND BS 3412: Material - Polyethylene. Standard - To BGC/PS/PL2 Part 1, table 2. Dimensions - To BGC/PS/PL2 Part 1, table 2.

Lengths - straight pipe 6m or 12m. Lengths - coiled pipe multiples of 50m.

Ends - Plain. Finish - Natural self colour. Y10.2525A BURIED POLYETHYLENE PIPES FOR GASEOUS FUELS TO BS ISO 4437: PE Pipes, including any identification tapes. Material - Polyethylene (PE). Standard - BS ISO 4437.

Y10 - PIPELINES


Dimensions - BS ISO 4437, Table 5. Ends - Plain for butt fused joints. Finish - Black, yellow. Y10.2525B BURIED POLYETHYLENE PIPES FOR GASEOUS FUELS TO BS ISO 4437: PE pipes with co-extruded layers on either or both the outside and/or inside. Material - Polyethylene (PE). Standard - BS ISO 4437. Dimensions - BS ISO 4437, Table 5. Ends - Plain for butt fused joints. Finish - Black, yellow. Y10.2525C BURIED POLYETHYLENE PIPES FOR GASEOUS FUELS TO BS ISO 4437: PE pipes with additional external thermoplastics layer. Material - Polyethylene (PE). Standard - BS ISO 4437. Dimensions - BS ISO 4437, Table 5. Ends - Plain for butt fused joints. Finish - Black, yellow. Y10.2528 POLYETHYLENE PIPES TO BS EN 1555: Material - Polyethylene. Standard - BS EN 1555-1, BS EN 1555-2 and BS EN 1555-5. Dimensions - BS EN 1555-2, table 1.

Lengths - straight pipe 6m or 12m. Lengths - coiled pipe multiples of 50m.

Marking - BS EN 1555-2, table 7. Ends - Plain. Finish • Black • Yellow • Black with yellow identification stripes. Y10.2530 POLYETHYLENE FITTINGS, FUSION TO BGC/PS/PL2 PART 2: Material - Polyethylene. Standard - To BGC/PS/PL2 Part 2. Size range - Socket type up to 125mm. Butt type up to 500mm. Saddle type up to 180mm. Dimensions - To BGC/PS/PL2 Part 2. Ends - Plain. Finish - Natural self colour. Y10.2538 POLYETHYLENE FUSION FITTINGS TO BS EN 1555: Material - Polyethylene. Standard - BS EN 1555-1, BS EN 1555-3 and BS EN 1555-5. Dimensions - BS EN 1555-3, Section 6, to suit pipes to BS EN 1555-2. Marking - BS EN 1555-3, table 7. Ends - Sockets with heating elements for fusion jointing. Finish • Black • Yellow. Y10.2545A PLASTICS PIPING SYSTEMS TO BS EN 1451-1 - PIPES: Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure. Material - Polypropylene (PP).

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Standard - BS EN 1451-1 and BS EN 15012. Dimensions - Length - manufacturer's standard range. BS EN 1451-1 tables 1, 2, 3 and 4. Ends - Plain; elastomeric ring seal socket and spigot; or socket and spigot for solvent cement. Finish - Grey, black, or white. Y10.2552A POLYPROPYLENE PIPING SYSTEMS FOR UNDERGROUND DRAINAGE AND SEWERAGE TO BS EN 14758: Plastics piping system for underground drainage and sewerage both buried in the ground within the building structure, and buried in the ground outside the building structure. Material - Polypropylene with mineral modifiers (PP-MD). Standard - BS EN 14758-1. Dimensions - Length - manufacturer's standard range. Ends - Plain (with or without chamfer); or single socket with ring seal (with or without chamfer). Finish - Black, orange-brown (approximately RAL 8023) or dusty grey (approximately RAL 7037). Other colours may be used. Y10.2553A PIPES AND FITTINGS WITH SMOOTH INTERNAL AND EXTERNAL SURFACE, TYPE A, TO BS EN 13476-2: PVC-U, PP and PE pipes, type A. Material - unplasticised poly (vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE). Standard - BS EN 13476-2. Dimensions - BS EN 13476-2, Section 7. Ends - Spigot, Type A1, Type A2, Type B. Finish - Black, orange-brown, dusty grey. Y10.2553B PIPES AND FITTINGS WITH SMOOTH INTERNAL AND PROFILED EXTERNAL SURFACE, TYPE B, TO BS EN 13476-3: PVC-U, PP and PE pipes, type B. Material - unplasticised poly (vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE). Standard - BS EN 13476-3. Dimensions - BS EN 13476-3, Section 7. Ends - Solid plain, Type A1, Type A2, Type B. Finish - Black, orange-brown, dusty grey. Y10.2555A PLASTICS PIPING SYSTEMS TO BS EN 1451-1 - FITTINGS: Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure. Material - Polypropylene (PP). Standard - BS EN 1451-1 and BS EN 15012. Size range - 32mm to 315mm. Dimensions - BS EN 1451-1 tables 5 - 8. Ends - Plain; elastomeric ring seal socket and spigot; or socket and spigot for solvent cement. Finish - Grey, black, or white. Y10.2580A PVC-U PIPING SYSTEMS - PIPES: Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure. Material - Unplasticised polyvinyl chloride (PVC-U). Standard - PVC-U to BS EN 1329-1. Dimensions - Length - manufacturer's standard range. BS EN 1329-1 tables 1, 2, 3 and 4. Ends - Plain; elastomeric ring seal socket and spigot; or socket and spigot for solvent cement. Finish - Grey, black, or white. Y10.2585A PVC-U PIPING SYSTEMS TO BS EN 1329-1 - FITTINGS:

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Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure. Material - Unplasticised polyvinyl chloride (PVC-U). Standard - PVC-U to BS EN 1329-1. Size range - 32mm to 315mm. Dimensions - BS EN 1329-1 tables 5-14. Ends - Plain; elastomeric ring seal socket and spigot; or socket and spigot for solvent cement. Finish - Grey, black, or white. Y10.2710 VULCATHENE: • Material

• Polyethylene. • Polypropylene.

• Standard - To manufacturer's standard (No BS available). • Dimensions

Nominal diameter 38mm to 152mm available, standard length 4m. • Ends - Plain. • Finish - Black. Y10.2720 VULCATHENE FITTINGS: • Material

• Polyethylene. • Polypropylene.

• Standard - To manufacturer's standard (No BS available). • Size range - Nominal diameter 38mm to 152mm. • Dimensions - Nominal diameter 38mm to 152mm available. • Ends

• Socket for heat fusion jointing. • Flexible joints.

• Finish - Black. Y10.2730 FULLY PLASTICIZED NYLON TO BS 5409-1: • Material

• Fully plasticized nylon polyamide type 11. • Fully plasticized nylon polyamide type 12.

• Standard • BS 5409-1, light duty grade. • BS 5409-1, normal duty grade.

• Dimensions • BS 5409-1, table 1. • BS 5409-1, table 2.

• Ends - Plain. • Finish

• Standard. • Stabilized against heat and light degradation. • Coloured

Y10.2760# GLASS FIBRE REINFORCED PLASTICS TO BS 5480: • Material - Glass fibre reinforced thermosetting resin. • Standard

• BS 5480, polyester resin to BS 3532.

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• BS 5480, reinforcement to BS EN 14020-1, BS EN 14020-2, BS EN 14020-3. • BS 5480, reinforcement to BS EN 14118. • BS 5480, reinforcement to BS 3396-1. • BS 5480, reinforcement to BS 3396-2. • BS 5480, reinforcement to BS 3396-3. • BS 5480, reinforcement to BS 3749.

• Dimensions • BS 5480, table 1 - preferred nominal diameters. • Diameters as indicated. Lengths 3, 5, 6, 10, or 12m.

• Ends • Plain. • Spigot. • Flanged. • Screwed.

• Finish • Natural self colour.

Y10.2772# GLASS REINFORCED PLASTICS (UNSATURATED POLYESTER RESIN) TO BS EN 1796 AND BS EN 14364: • Material - Glass reinforced thermosetting plastic based on unsaturated polyester resin. • Standard

• BS EN 1796 and BS EN 14364. • Installation to DD CEN/TS 14578

• Dimensions • Diameters as indicated.

• Ends • Plain. • Spigot. • Flanged. • Screwed.

• Finish • Natural self colour.

• Jointing • BS EN 1796. • BS EN 14364.

Y10.2810# VITRIFIED CLAY TO BS EN 295: • Material - Vitrified clay. • Standard

• BS EN 295-1, normal. • BS EN 295-1, surface water. • BS EN 295-1, extra chemically resistant. • BS EN 295-5, perforated.

• Dimensions - BS EN 295-1, table 1 nominal sizes. • Ends - Flexible joints. • Finish

• Unglazed. • Glazed internally. • Glazed externally.

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• Glazed internally and externally. Y10.3010A CIRCULAR FLANGES FOR PIPES, PN DESIGNATED - WELDED FLANGE: Material - BS EN 1092-1. Flange type - Weld neck flange or hubbed slip-on flange for welding. Flange facings - Raised face - type B. Bolting - In accordance with BS EN 1092-1. Y10.3010B CIRCULAR FLANGES FOR PIPES, PN DESIGNATED - THREADED FLANGE: Material to BS EN 1092-1. Facings - Raised face type B. Bolting - in accordance with BS EN 1092-1. Threaded flanges - BS 21 and BS EN 10226-1 parallel thread. Y10.3010C CIRCULAR FLANGES FOR PIPES, PN DESIGNATED - CAST IRON FLANGE: Material - BS EN 1092-2 - Ductile cast iron. Bolting - In accordance with BS EN 1092-2. Y10.3020A JOINTING RINGS - NON-METALLIC FLAT GASKETS: Non-metallic flat gaskets for flanges to BS EN 1092-4. Standard - BS EN 1514-1 Gasket type - Full face for type B. Y10.3020B JOINTING RINGS - METALLIC GASKETS: Corrugated, flat or grooved metallic and filled metallic gaskets for flanges to BS EN 1092-4. Standard - BS EN 1514-4 Gasket type - Corrugated metal. Gasket design - Self centring for type B. Y10.3020C JOINTING RINGS FOR CAST IRON: Non-metallic flat gaskets for flanges to BS EN 1092-2 Standard - BS EN 1514-1. Gasket type - Suitable for flanges to BS EN 545, BS EN 598 and BS EN 969. Y10.3030A SCREWED JOINTS TO BS 21 AND BS EN 10226-1: Use PTFE tape to BS 7786 or use hemp and jointing compound to BS 6956-5, or BS EN 751-2. Y10.3030B SCREWED JOINTS TO BS 21 AND BS EN 10226-1 WITH PTFE TAPE: Use PTFE tape to BS 7786. Y10.3030C SCREWED JOINTS TO BS 21 AND BS EN 10226-1 WITH CHEMICAL CLEANING: Use hemp and jointing compound to BS 6956-5 or BS EN 751-2, prior to chemical treatment and use PTFE tape to BS 7786 after chemical treatment. Y10.3050A WELDED JOINTS, WELDING RODS FOR STEEL PIPES: Gas welding, BS 1453 type A2 or A3; electric arc welding BS 2971. Y10.3060# BRAZED JOINTS: • Use filler metal alloys to BS EN 1044. • Use nickel bearing zinc free grades of filler metals to BS EN 1044. Y10.3070A CAPILLARY JOINTS FOR COPPER: Use materials as follows Solder - BS EN ISO 9453. Flux - Copper pipe - BS EN 29454-1.

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Y10.3070B CAPILLARY JOINTS FOR POTABLE WATER: Use materials as follows Solder - Use lead-free fittings in accordance with BS EN 1254-1, on potable water systems. Flux - Copper pipe - BS EN 29454-1. Y10.3095B JOINTING MATERIALS FOR PLASTICS PIPES TO BS 7291 - PUSHFIT: Plastics fittings to BS 7291.

Method of jointing to BS 5955-8 Mechanical joints - Pushfit.

Y10.3095C JOINTING MATERIALS FOR PLASTICS PIPES TO BS 7291 - SOLVENT CEMENT: Plastics fittings to BS 7291.

Method of jointing to BS 5955-8 - Solvent cement joints. Y10.3097# JOINTING EQUIPMENT FOR POLYBUTYLENE (PB) PIPES: Provide the equipment recommended by the manufacturer to carry out the following jointing technique(s) on polybutylene pipes and fittings. • Compression fittings. • Socket fusion. • Electrofusion. Y10.3102 JOINTING EQUIPMENT FOR PUSH-FIT SYSTEM: Provide manufacturer's recommended tool for releasing push-fit fittings in push-fit jointing systems for copper and plastic pipe. Y10.3105A STAINLESS STEEL COUPLINGS FOR CAST IRON PIPES TO BS EN 877: Material - Stainless steel, with zinc coated bolts and bolt holder. Gasket - EPDM. Y10.3105B RED DUCTILE IRON COUPLINGS FOR CAST IRON PIPES TO BS EN 877: Material - Ductile iron. Finish - Red. Gasket - EPDM. Y10.3105C GREY DUCTILE IRON COUPLINGS FOR CAST IRON PIPES TO BS EN 877: Material - Ductile iron. Finish - Grey. Gasket - EPDM. Y10.3105D BLACK DUCTILE IRON COUPLINGS FOR CAST IRON PIPES TO BS EN 877: Material - Ductile iron. Finish - Black. Gasket - EPDM. Y10.3110A SPIGOT/SOCKET CAULKED JOINTS: Use for spun cast iron pipe. Yarn - Tarred hemp or spun yarn; or sterile inorganic yarn. Lead - Virgin blue pig lead. Y10.3170A FLEXIBLE COUPLINGS, SLEEVE TYPE: Joint - Bolted, sleeve type, with wedge type elastomeric gaskets. Type - Non-end load capable. Dimensions - Manufacturer's standard. Material - Ductile cast iron to BS EN 1564, or to BS EN 1563.

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Finish - Manufacturer's standard. Gaskets - In accordance with BS EN 681-1, BS EN 681-2 or BS EN 682. Y10.3180A FLEXIBLE FLANGE ADAPTERS, SLEEVE TYPE: Joint - Bolted, sleeve type, with wedge type elastomeric gaskets, flanged on end. Type - Non-end load capable. Dimensions - Manufacturer's standard. Material - Ductile cast iron to BS EN 1564. Flange - To connect to BS EN 1092-2, PN10 flange. Finish - Manufacturer's standard. Gaskets - In accordance with BS EN 681-1, BS EN 681-2 or BS EN 682. Y10.3190A WALL, FLOOR AND CEILING CHROMIUM PLATED MASKING PLATES: Material - Copper alloy, chromium plated. Type - Heavy, split on the diameter, close fitting to outside of pipe. Fixing - Chrome raised head fixing screws. Y10.3190B WALL, FLOOR AND CEILING PLASTIC MASKING PLATES: Material - Plastic. Fixing - Clipped with plastic lug. Y10.4010 APPEARANCE: Arrange all exposed pipe runs to present neat appearance, parallel with other pipe or service runs and building structure, subject to gradients for draining or venting. Ensure all vertical pipes are plumb or follow building line. Y10.4020 SPACING: Space pipe runs in relation to one another, other services runs and building structure, allow for specified thickness of thermal insulation and ensure adequate space for access to pipe joints, etc. The following are recommended as minimum clearances in spacing of pipe runs:- Between and Clearance (mm) Pipeline insulated or uninsulated Wall Finish 25 Ceiling Finish 50 Soffit Floor Finish 150 Insulated Pipeline Adjacent service runs 25 Uninsulated pipeline Adjacent service runs 50 Adjacent pipelines Both uninsulated 150 One uninsulated 75 Both insulated 25 Y10.4030 GRADIENTS: Install pipework with gradients to allow drainage and/or air release, and to the slopes where indicated. Y10.4040A AIR BOTTLES: Provide a means of venting the pipe system at all high points. Provide a vertical extension from the pipe approximately 100mm long, at the bore of the pipe, with a copper extension pipe with a manual vent cock located in an easily accessible position.

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Y10.4040B AUTOMATIC AIR VENTS: Provide a means of venting the pipe system at all high points. Provide an automatic air vent valve with a copper outlet pipe from the valve to a tundish in an adjacent drain line or to another suitable location. Y10.4050 DRAIN REQUIREMENTS: Grade pipework to allow system to be drained. Provide a means of draining the system at all low points. Y10.4060 EXPANSION AND CONTRACTION: Arrange supports and fixings to accommodate pipe movement caused by the thermal changes, generally allow the flexure at changes in direction. Allow for movement at branch connections. Y10.4070A PIPE FITTINGS, BENDS/SWEPT TEES: Use eccentric type reductions and enlargements on horizontal pipe runs to allow draining and venting, concentric on vertical pipes,with easy transition and an included angle not exceeding 30 degree. Do not use bushes, except at radiators and at fittings where required size is not of standard manufacture. Where required, use eccentric bushes to allow draining or venting; maximum aspect ratio not to exceed two pipe sizes; above this ratio use reducing fittings. Use square tees at venting and draining points. Square elbows are not acceptable. Use bends and swept tees where practical. Y10.4070B PIPE FITTINGS, ELBOWS/SQUARE TEES: Use eccentric type reductions and enlargements on horizontal pipe runs to allow draining and venting, concentric on vertical pipes, with easy transition and an included angle not exceeding 30 degree. Do not use bushes, except at radiators and at fittings where required size is not of standard manufacture. Where required, use eccentric bushes to allow draining or venting; maximum aspect ratio not to exceed two pipe sizes; above this ratio use reducing fittings. Use square tees at venting and draining points. Square elbows are not acceptable. Use elbows and square tees. Y10.4090 FABRICATED FITTINGS - FERROUS: Supply pipe material and end connections to the specification of the associated straight pipe runs.

Pattern - Bends, springs, offsets and branches. Technique - Pipe bore 50mm or less - machine cold bend.

Pipe bore greater than 50mm - machine hot bend. Ensure that fabricated branch bends of welding saddles are to the fitting proportions in BS EN 10253-1 and BS EN 10253-2. Y10.4100 FABRICATED FITTINGS - NON-FERROUS: Provide pipe material and end connections to the specification of the associated straight pipe runs. Pattern - Bends, springs, offsets and branches. Technique - Machine bend and ensure that machine guides and formers are smooth and clean, free from any scores, or other damage. Deformed bends will not be accepted.

Fabricate branch from a section of pulled bend, profiled to match the contour of the main to avoid overlap and protrusion into the main. Cut and swage the main to form a raised cup to accept the spigot end of the branch. Limit angle of the branch to 60o. Join by bronze welding on site. Apply reinforcement by plates, collars or shoes.

Y10.4110 PIPES THROUGH WALLS AND FLOORS: Enclose pipes passing through building elements, (walls, floors, partitions,etc.) concentrically within purpose made sleeves. Fit masking plates where visible pipes pass through building elements, including false ceilings of occupied rooms.

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Y10.4120A PIPE SLEEVES: Where pipe insulation is not carried through pipe sleeve, cut sleeves from material same as pipe one or two sizes larger than pipe to allow clearance. Do not use sleeves as pipe supports. Install sleeves flush with building finish. In areas where floors are washed down install with a 100mm protrusion above floor finish. Y10.4120B PIPE SLEEVES WITH INSULATION CARRIED THROUGH: Where pipe insulation is carried through pipe sleeve, cut sleeves from material same as pipe one or two sizes larger than pipe and insulation to allow clearance. Do not use sleeves as pipe supports. Install sleeves flush with building finish. In areas where floors are washed down install with a 100mm protrusion above floor finish. Y10.4125 PIPE SLEEVES THROUGH FIRE BARRIERS: Pack annular space between pipe and sleeve or insulation and sleeve with non-flammable and fire resistant material to form a fire/smoke stop of required rating. Apply 12mm deep cold mastic seal at both ends within sleeve. Y10.4150A TEMPORARY PLUGS, CAPS AND FLANGES: Seal all open ends as installation proceeds by plugs, caps or blank flanges, to prevent ingress of foreign matter. Use plugs of metal, plastic or wood to suit pipework material. In the event of such precautions not being taken, strip out pipework adjacent to open ends to demonstrate that fouling of bores has not occurred. Y10.4160 FLANGED JOINTS GENERAL: Use number and diameters of bolts to standard. Fit bolts of length to give not less than one thread, or more than 3mm protrusion beyond nut when joint is pulled up. Fit washers under each nut. Y10.4170 DISSIMILAR METALS: Take appropriate means to prevent galvanic action where dissimilar metals are connected together. Y10.4180 PIPE RINGS AND CLIPS: Select type according to the application and material compatibility, give particular attention where pipes are subject to axial movement due to expansion or contraction. Y10.4190 ANCHORS: Location • As drawing numbers Construct to resist axial stress transmitted by flexure of horizontal and vertical pipe runs or loading on vertical pipes assuming that unbalanced forces exist at all anchor points, even when these are situated in intermediate positions between two expansion loops or bellows. Use similar or compatible materials to the attached pipe. Provide and fix all associated backing plates, nuts, washers and bolts for attachment to or building into building structure; ensure structure is suitable for transmitted stress. Set out and line up anchors accurately in position. Inspect final grouting into building structure. Y10.4200 SLIDE GUIDES: Location • As drawing numbers Direct movement of expansion and contraction from pipe anchor points towards loops, bellows or flexible inserts. Ensure that thrust is linear relative to the axis of pipe.

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Apply a friction reducing material between metal faces subjected to movement. Y10.4205 PIPE SUPPORTS: Arrange supports and accessories for equipment, appliances or ancillary fitments in pipe runs, so that no undue strain is imposed upon pipes. Ensure that materials used for supports are compatible with pipeline materials. Y10.4210 SUPPORT SYSTEM - WIRE ROPE: • 4215# WIRE ROPE SUSPENSION SYSTEM:

• Type • Application • Manufacturer and reference

• Or approved equivalent • Standards

• BS EN 12385-1. • BS EN 13411-3. • BS EN 13411-4. • DIN 3093. • BSRIA COP 22/2002.

• Dimensions • Safe working load (kg) • Length

• Components • Wire rope

• Safe working load (kg) • Length (mm) • Material

• Stainless steel grade 316 • Galvanised

• Fastener • Components

• Springs - stainless steel grade 302 • Adjustment

• Tamperproof • Fixing

• Loop • Safe working load (kg) • Length (mm)

• Stud (permanently fixed to wire rope length) • Single toggle • Double toggle • Double karabiner • Hook

• Accessories • Setting keys • Span/bearer supports • Ceiling clip fixings • Threaded adaptors • Anchor bolts • Anchor for stud fixings

Y10 - PIPELINES


• Ceiling fixing kit • Corner saddle • Fastener décor cover

Provide wire rope support system. Confirm wire rope is suitable for supporting pipelines.

Y10 - PIPELINES


Y10.4220 SUPPORT SPACING: Space supports as tables. Pipe Bore (mm) Maximum Support Spacing (M) Nominal Steel Pipe Copper Pipe Iron Pipe horizontal vertical horizontal vertical horizontal vertical Up to 15 1.8 2.4 1.2 1.8 - - 20 2.4 3.0 1.4 2.1 - - 25 2.4 3.0 1.8 2.4 - - 32 2.7 3.0 2.4 3.0 - - 40 3.0 3.6 2.4 3.0 - - 50 3.0 3.6 2.7 3.0 1.8 1.8 65 3.7 4.6 3.0 3.6 - - 80 3.7 4.6 3.0 3.6 2.7 2.7 100 3.7 4.6 3.0 3.6 2.7 2.7 125 3.7 5.4 3.0 3.6 - - 150 4.5 5.4 3.6 4.2 3.7 3.7 200 5.6 6.0 - - 3.7 3.7 250 5.0 6.0 - - 4.5 5.4 300 6.1 10.0 - - 8.0 10.0 350 10.0 12.0 - - - - 400 10.5 12.6 - - - - 450 11.0 13.2 - - - - 500 12.0 14.4 - - - - 600 14.0 16.8 - - - - For grooved steel and copper pipe, no individual pipe length should be left unsupported. Vertical support spacing

Check total self-weight and pressure loading against manufacturer's recommendations when using mechanical joints or end load capable flexible couplings. Ensure adequate pipe support when using non-end load capable flexible couplings. Space vertical support intervals for plastics pipe at not greater than twice horizontal intervals tabulated.

Where multiple pipe runs of differing bores are supported from a common point, use support spacing of pipe requiring closest spacing. Spacings give for PVC-U pipe to BS EN 1452. Y10.4230A ISOLATION AND REGULATION: Provide valves, cocks and stop taps for isolation and/or regulation where indicated, and on:-

mains to isolate major sections of distribution; the base of all risers and drops except in cases where one item of apparatus only is served which has its own local valve or stop tap; points of pipe connection of all items of apparatus and equipment except where the item could conveniently be isolated or regulated by valves provided for other adjacent items; draw-off fittings except where ranges of fittings are served by a common float, the isolator then being fitted with the float.

Y10.4240 MAINTENANCE AND RENEWAL: Arrange pipework, valves, drains, air vents, demountable joints, supports, etc., for convenient routine maintenance and renewals. Provide all runs with a regularly spaced pattern of demountable joints in the form of unions, flanges, etc., and also at items of equipment to facilitate disconnection. Locate valves, drains, flanges etc. in groups.

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Y10.5010A WELDING GENERAL, CLASS 1: Use skilled craftsman in possession of a current Certificate of Competence appropriate to type and class of work, issued by an approved authority. Mark each weld to identify operative. Submit specimen welds, representative of joints and conditions of site welding, for each craftsman, test non-destructively, approximately 10% of butt weld joints and 5% of all other joints. Weld pipeline joints to BS 2633 as appropriate. Carry out non-destructive testing on 10% or as indicated. Y10.5010B WELDING GENERAL, CLASS 2: Use skilled craftsman in possession of a current Certificate of Competence appropriate to type and class of work, issued by an approved authority. Mark each weld to identify operative. Submit specimen welds, representative of joints and conditions of site welding, for each craftsman, test non-destructively, approximately 10% of butt weld joints and 5% of all other joints. Weld pipeline joints to BS 2971 and to HVCA Code of Practice TR/5, Welding of Carbon Steel Pipework, as appropriate. Y10.5020 WELDED JOINTS, STEEL PIPES: Preparation, Making and Sealing.

Arc welding, conforming to BS 2971 appropriate to system temperature and pressure. Use arc welding process on piping greater than 100mm.

Y10.5030 PAINTING WELDED JOINTS, STEEL PIPES: Unless pipework is being prepared for galvanizing after manufacture, wire brush and paint all welds with red oxide paint when welds are complete. Y10.5040 FLANGED JOINTS, STEEL PIPES: Welded Flanges

Weld neck and bore of 'slip on' flange. Butt weld neck of welding neck flange.

Screwed Flanges Apply jointing materials. Screw on flange and expand tube into flange with roller expander where necessary.

Preparation Ensure that flange mating faces are parallel; flange peripheries are flush with each other; and bolt holes are correctly aligned.

Making and Sealing Insert jointing between flange mating faces. Pull up joint equally all round.

Y10.5050 SCREWED JOINTS, STEEL PIPES: Preparation

Ensure that plain ends are cut square. Reamer out bore at plain ends. Screw plain ends, taper thread.

Making and Sealing Coat male pipe threads with jointing compound and hemp, or PTFE tape on small sizes. Immediately after applying coating, connect with female end of socket or fitting, and tighten ensuring that coating does not intrude into pipe. Leave joint clean.

Y10.5070A ANCHORS, STEEL PIPES, U-BOLTS: Provide anchors constructed using mild steel over-straps or heavy U-bolts. Secure to channel section, adequately attached to or grouted into building structure; weld longitudinal edges of strap to pipe. Y10.5070B ANCHORS, STEEL PIPES, SLIP-ON FLANGES:

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Provide anchors constructed by passing two slip-on flanges over pipe to anchor point. Bolt together through an interposed mild steel channel section attached to or grouted into building structure, and finally weld flanges to pipe. Y10.5090 STEEL PIPEWORK PAINTING: Remove scale, rust or temporary protective coating by chipping, wire brushing or use of approved solvents and paint with one coat of red oxide primer, as work proceeds. Y10.5100 COMPRESSION JOINTS, STAINLESS STEEL PIPES: Use BS EN 1254-2 Type 'A' fittings. Preparation - Ensure that plain ends are cut square. Reamer out bore at plain ends to full bore size. Clean plain ends with fine steel wool. Making and Sealing - In accordance with fitting manufacturer's instructions. Y10.5120 BRAZED JOINTS, STAINLESS STEEL JOINTS: Preparation - Prepare for brazing in accordance with BS EN 14324. Making and Sealing - Use flame heat and make in accordance with BS EN 14324. Use nickel bearing zinc free filler metals. Y10.6010 WELDING GENERAL: Use skilled craftsman in possession of a current Certificate of Competence appropriate to type and class of work, issued by an approved authority. Mark each weld to identify operative. Submit specimen welds, representative of joints and conditions of site welding, for each craftsman, test non-destructively, approximately 10% of butt weld joints and 5% of all other joints. Y10.6030 COMPRESSION JOINTS, COPPER PIPES, LIGHT GAUGE: Preparation for fittings to BS EN 1254-2.

Type `A' fitting Ensure that plain ends are cut square. Reamer out bore at plain ends to full bore size. Clean plain ends with fine steel wool or fine sandpaper.

Type `B' fitting Ensure that plain ends are cut square. Reamer out bore at plain ends to full bore size. Clean plain ends with fine steel wool or fine sandpaper. Then comply with manufacturer's instructions.

Making and Sealing - As manufacturer's instructions. Y10.6040 CAPILLARY JOINTS, COPPER PIPES, LIGHT GAUGE: Preparation - Ensure that plain ends are cut square. Reamer out bore at plain ends to full bore size. Clean plain ends with fine steel wool. Making and sealing - Use specified flux ensuring no excess material used. Make joint in accordance with manufacturer's instructions. Clean off traces of flux when joint is completed. Y10.6050 BRAZED JOINTS, COPPER/COPPER ALLOY PIPES: Preparation - Prepare for brazing in accordance with BS EN 14324. Use manufactured fittings not subject to dezincification and suitable for application. Making and Sealing - Use flame heat and make in accordance with BS EN 14324. Use silver brazing filler alloy suitable for application. Y10.6060A ANCHORS, COPPER PIPES, SADDLE CLAMPS: Provide anchors constructed by fitting two flanges to copper female adapters in pipe run at anchor point. Bolt together through an interposed mild steel channel section attached to or grouted into building structure. Y10.6060B ANCHORS, COPPER PIPES, SADDLE CLAMPS:

Y10 - PIPELINES


Anchor pipework using saddle clamps to mild steel channel section attached to or built into building structure. Y10.6080 PRESS FITTING SYSTEM: Carry out the installation of press fitting systems on copper pipe in accordance with manufacturer's recommendations. Ensure all fittings are electrically continuous when the jointing process is complete. Y10.6090 PUSH-FITTING SYSTEM: Carry out the installation of push-fit fitting systems on copper pipe in accordance with manufacturer's recommendations. Ensure all fittings are electrically continuous when the jointing process is complete. Y10.7010 FLANGED JOINTS, CAST IRON/DUCTILE IRON PIPES: Preparation - Ensure that flange mating faces are parallel, flange peripheries are flush with each other and bolt holes are correctly aligned. Making and Sealing - Coat both sides of joint ring with jointing compound to BS 6956-5 or BS EN 751-2. Insert joint ring between flange mating faces. Pull up joint with bolts, nuts and washers, ensuring that excess compound does not intrude into the pipe. Leave joint clean. Y10.7020 CAULKED JOINTS, CAST IRON/SPUN CAST IRON PIPES: Preparation - Ensure plain ends are cut square. Making and sealing - Caulk socket with yarn, fill socket with molten lead, allow to cool and caulk home. Ensure bore of pipe is not obstructed. Y10.7030 FLEXIBLE JOINTS, CAST IRON PIPES: Preparation - Ensure that cut ends are square. Form groove to manufacturer's detail. Assemble joint in accordance with manufacturer's instructions. Making and Sealing - Ensure joint ring is suitable for service.Thoroughly lubricate joint ring. Slip ring over pipe end and bring ends together. Slide ring into central position over both pipe ends. Position metal half housings over joint ring and insert bolts and nuts. Tighten bolts to manufacturer's instructions. Check alignment of joint and pipework. Y10.8010 SOLVENT WELDED JOINTS, PVC PIPES: Use solvent welded joints generally, ring seal joints at expansion joints and elsewhere as necessary. Preparation - Ensure that plain ends are cut square. Reamer out bore at plain ends. Clean plain ends with solvent cleaner. Making and Sealing - In accordance with fitting manufacturer's instructions. Y10.8020 FUSION JOINTS, POLYETHYLENE PIPES: Preparation - Square cut plain ends. Form pipe ends for socket type joints. Making and Sealing - In accordance with fitting manufacturer's instructions. Carry out butt fusion jointing of pipes and fittings in accordance with the procedures given in BS ISO 21307. Y10.8030 MECHANICAL FITTINGS FOR POLYETHYLENE PIPE: Preparation - Ensure that cut ends are square. Check wall thickness/pressure rating of fitting. Making and sealing - Ensure correct gasket type is used for service (e.g. water or gas). Assemble fitting in accordance with manufacturer's instructions. Y10.8040 ANCHORS - PVC PIPES: Clamp pipework to mild steel channel section attached to or grouted into building structure, using PVC coated over-straps, or clamps and with a polypropylene strip between pipe and mild steel section.

Y10 - PIPELINES


Y10.8050 JOINTING POLYBUTYLENE PIPES AND FITTINGS: Carry out installation of polybutylene pipes and fittings in accordance with manufacturer's instructions. Y10.8060 COMPRESSION FITTINGS ON MULTI-LAYER PIPES: Carry out installation of compression fittings on multi-layer pipe in accordance with manufacturer's recommendations. Y10.9020A STEAM AND CONDENSE MAINS: Install steam and condense mains to a minimum fall of 1 in 250. Take steam connections to plant and equipment from the top of the steam main. Connect condense discharge from trap sets, into the top of the condense main. Do not use trap sets to lift condense on equipment with automatic control valves. On steam mains, provide drain trap sets discharging into the condense mains, at all low points in steam mains. Connect drain traps to a large bore pocket below the steam mains. Y10.9020B STEAM AND CONDENSE MAINS: Install steam and condense mains to a minimum fall of 1 in 250. Take steam connections to plant and equipment from the top of the steam main. Connect condense discharge from trap sets, into the top of the condense main. Do not use trap sets to lift condense on equipment with automatic control valves. On steam mains, provide drain trap sets discharging into the condense mains, at all low points in steam mains and immediately before all automatic control valves in the steam mains. Connect drain traps to a large bore pocket below the steam mains. Y10.9030 PROTECTION OF UNDERGROUND PIPEWORK: Location • As shown on drawing Protect where indicated against corrosion by the application of a compatible anti-corrosive, non-cracking, non-hardening waterproof sealing tape. Apply, after cleaning pipework, by wrapping contrawise with two layers spirally around the pipe, ensuring a 50% minimum overlap. Y10.9040A PROTECTION OF BURIED PIPES, UNMARKED: Provide earth cover as follows Water pipework

900 mm minimum; 1200 mm maximum where practicable. Fuel oil and gas - 500 mm minimum. Under roadways provide minimum cover of 900 mm. Y10.9040B PROTECTION OF BURIED PIPES, MARKED: Location Provide earth cover as follows Water pipework

900 mm minimum; 1200 mm maximum where practicable. Fuel oil and gas - 500 mm minimum. Under roadways provide minimum cover of 900 mm. Provide a marker tape to identify buried pipe services as indicated. Y10.9060A INSTALLATION OF THERMALLY INSULATED UNDERGROUND PIPELINES TO BS EN 253: Install preinsulated bonded pipelines to BS EN 253, BS EN 448, BS EN 488 and BS EN 489 in accordance with manufacturer's instructions. Y10.9060B INSTALLATION OF THERMALLY INSULATED UNDERGROUND PIPELINES TO BS 4508-1:

Y10 - PIPELINES


Install thermally insulated underground pipelines comprising steel casing with air gap in accordance with BS 4508-1. Y10.9060C INSTALLATION OF THERMALLY INSULATED UNDERGROUND PIPELINES WITH PLASTIC SERVICE PIPES: Install preinsulated bonded pipelines, with plastic service pipes, in accordance with manufacturer's instructions. Y10.9100 CORROSION PROTECTIVE TAPE: Apply basic cotton carrier tape saturated with petroleum hydrocarbons with inert siliceous fillers. Wind tape spirally contrawise round pipework applied and overlapped to manufacturer's recommendations. Y10.9110 MECHANICAL PROTECTIVE TAPE: Apply hessian based bituminous tape over the corrosion protective tape. Wind tape spirally contrawise round pipework applied and overlapped to manufacturer's recommendations. Y10.9120A STEELWORK GALVANIZED AFTER MANUFACTURE: Prepare supports, bearers and other uncovered steelwork as steel pipework. Where not exposed, paint with one coat zinc chromate or red oxide primer.

Y11 - PIPELINE ANCILLARIES


Y11 PIPELINE ANCILLARIES Y11.1000 GENERAL 1010 SAFETY AND RELIEF VALVES, SELF OPERATED, APPLICATION: Safety - To discharge with rapid opening action to prevent pre-determined safe pressure being exceeded. Relief - To discharge with opening action proportional to increase in pressure above set pressure. 1020 EXPOSED VALVES: Fit easy-clean covers over glands and bonnets to small copper alloy valves exposed in areas other than plant rooms. Fit thermoplastic valve wheels. Fit dust caps to lockshield valves. 1030 TESTING: Ensure that valves and cocks are pressure tested at manufacturer's works, in accordance with appropriate British Standards specification. Test valves in accordance with BS EN 12266-1 and BS EN 12266-2. Y11.2015A STOP VALVES TO BS EN 1213 FOR POTABLE WATER SUPPLIES - COMPRESSION ENDS FOR COPPER: Pattern - Straight. Material - copper alloy. Flow rate class - VA (straight and angle pattern stopvalves). End connections - Compression to BS EN 1254-2. Y11.2015B STOP VALVES TO BS EN 1213 FOR POTABLE WATER SUPPLIES - COMPRESSION ENDS FOR PLASTICS: Pattern - Straight. Material - copper alloy. Flow rate class - VA (straight and angle pattern stopvalves). End connections - Compression to BS EN 1254-3. Y11.2015C STOP VALVES TO BS EN 1213 FOR POTABLE WATER SUPPLIES - CAPILLARY: Pattern - Straight. Material - copper alloy. Flow rate class VA (straight and angle pattern stopvalves). End connections - Capillary to BS EN 1254-1. Y11.2015D STOP VALVES TO BS EN 1213 FOR POTABLE WATER SUPPLIES - THREADED: Pattern - Straight. Material - copper alloy. Flow rate class - VA (straight and angle pattern stopvalves). End connections - Threaded to BS 21 and BS EN 10226-1. Y11.2020A THREADED ENDS GATE VALVES TO BS EN 12288: Series - B. Gate valve type - Solid or split wedge. Ends - Threaded to BS EN ISO 228-1 or ISO 7-1. Stem - Inside screw non-rising stem. Trim material - Manufacturer's standard. Operation - Handwheel. Y11.2020B COMPRESSION ENDS GATE VALVES TO BS EN 12288: Series - B. Gate valve type - Solid or split wedge. Ends - Compression to BS EN 1254-2. Stem - Inside screw non-rising stem.



Trim material - Manufacturer's standard. Operation - Handwheel. Y11.2020C FLANGED ENDS GATE VALVES TO BS EN 12288: Series - B. Gate valve type - Solid or split wedge. Ends - Flanged to BS EN 1092-3. Stem - Inside screw non-rising stem. Trim material - Manufacturer's standard. Operation - Handwheel. Y11.2020D LOOSE NUT/UNION ENDS GATE VALVES TO BS EN 12288: Series B. Gate valve type - Solid or split wedge. Ends - Loose nut/union end. Stem - Inside screw non-rising stem. Trim material - Manufacturer's standard. Operation - Handwheel. Y11.2030A FLANGED GATE VALVES TO BS EN 1171: Valve type - Solid or split wedge. Seat - Metal. Ends - Flanged to BS EN 1092-2. Body and bonnet material - Grey cast iron. Trim category - Copper alloy faced. Operation - Handwheel. Y11.2040A THREADED END GLOBE VALVES TO BS 5154: Series - B. Pattern - Straight. Ends - Threaded to BS 21 and BS EN 10226-1. Stem - Inside screw rising stem. Trim material - Manufacturer's standard. Operation - Handwheel. Options - Non-metallic renewable seat/disk rings. Y11.2040B FLANGED GLOBE VALVES TO BS 5154: Series - B. Pattern - Straight. Ends - Flanged to BS EN 1092-3. Stem - Inside screw rising stem. Trim material - Manufacturer's standard. Operation - Handwheel. Options - Non-metallic renewable seat/disk rings. Y11.2040C COMPRESSION GLOBE VALVES TO BS 5154: Series - B. Pattern - Straight. Ends - Compression fitting to BS EN 1254-2. Stem - Inside screw rising stem. Trim material - Manufacturer's standard. Operation - Handwheel. Options - Non-metallic renewable seat/disk rings. Y11.2040D COMPRESSION GLOBE VALVES TO BS 5154 FOR PLASTIC PIPE:



Series - B. Pattern - Straight. Ends - Compression fitting to BS EN 1254-3 or BS 864-5. Stem - Inside screw rising stem. Trim material - Manufacturer's standard. Operation - Handwheel. Options - Non-metallic renewable seat/disk rings. Y11.2050A FLANGED GLOBE VALVES TO BS EN 13789: Pattern - Straight. Stem - Rising stem outside screw. Ends - Flanged to BS EN 1092-2. Material - Manufacturer's standard. Y11.2060A PARALLEL SLIDE VALVES TO BS EN 1171: Ends - Flanged BS EN 1092-2. Stem - Rising stem. Valve faces - Stainless steel disc and seat. Y11.2070A FLANGED STOP VALVES - GATE TYPE TO BS EN 1984: Pattern - Full bore or reduced bore. Materials - Cast steel body and materials to suit fluid and operating conditions. Ends - Flanged. Operation - Handwheel. Y11.2070B BUTT-WELDED BODY ENDS STOP VALVES - GATE TYPE TO BS EN 1984: Pattern - Full bore or reduced bore. Materials - Cast steel body and materials to suit fluid and operating conditions. Ends - Butt-welded body ends. Operation - Handwheel. Y11.2070C SOCKET WELDED STOP VALVES - GATE TYPE TO BS EN 1984: Pattern - Full bore or reduced bore. Materials - Cast steel body and materials to suit fluid and operating conditions. Ends - Socket welded ends. Operation - Handwheel. Y11.2070D THREADED STOP VALVES - GATE TYPE TO BS EN 1984: Pattern - Full bore or reduced bore. Materials - Cast steel body and materials to suit fluid and operating conditions. Ends - Threaded to BS 21 and BS EN 10226-1. Operation - Handwheel. Y11.2080A THREADED END BALL TYPE VALVES - SCREW DRIVER/KEY OPERATED: Materials - Bronze or DZR copper alloy body. Ends - Threaded to BS 21 and BS EN 10226-1. Chrome or nickel plated DZR sphere with full bore flow aperture. PTFE seats and stem seals. Anti-blowout stem. Operation - Screw driver operated or key operated. Y11.2080B COMPRESSION END BALL TYPE VALVES - SCREW DRIVER/KEY OPERATED: Materials - Bronze or DZR copper alloy body. Ends - Compression fittings to BS EN 1254-2.



Chrome or nickel plated DZR sphere with full bore flow aperture. PTFE seats and stem seals. Anti-blowout stem. Operation - Screw driver operated or key operated. Y11.2080C THREADED END BALL TYPE VALVES - LEVER OPERATED: Materials - Bronze or DZR copper alloy body. Ends - Threaded to BS 21 and BS EN 10226-1. Chrome or nickel plated DZR sphere with full bore flow aperture. PTFE seats and stem seals. Anti-blowout stem. Operation - lever operated. Y11.2080D COMPRESSION END BALL TYPE VALVES - LEVER OPERATED: Materials - Bronze or DZR copper alloy body. Ends - Compression fittings to BS EN 1254-2. Chrome or nickel plated DZR sphere with full bore flow aperture. PTFE seats and stem seals. Anti-blowout stem. Operation - lever operated. Y11.2080E THREADED END BALL TYPE VALVES - LOCKSHIELD: Materials - Bronze or DZR copper alloy body. Ends - Threaded to BS 21 and BS EN 10226-1. Chrome or nickel plated DZR sphere with full bore flow aperture. PTFE seats and stem seals. Anti-blowout stem. Operation - lockshield. Y11.2080F COMPRESSION BALL TYPE VALVES - LOCKSHIELD: Materials - Bronze or DZR copper alloy body. Ends - Compression fittings to BS EN 1254-2. Chrome or nickel plated DZR sphere with full bore flow aperture. PTFE seats and stem seals. Anti-blowout stem. Operation - lockshield. Y11.2085A SCREWED END SERVICING VALVES - HANDWHEEL OPERATED: Materials - copper alloy body. Ends - Screwed to BS 864 and BS EN 1254-2. Operation - Handwheel operated. Y11.2085B COMPRESSION END SERVICING VALVES - HANDWHEEL OPERATED: Materials - Copper alloy body. Ends - Compression fittings to BS 864 and BS EN 1254-2. Operation - Handwheel operated. Y11.2085C CAPILLARY END SERVICING VALVES - HANDWHEEL OPERATED: Materials - Copper alloy body. Ends - Capillary ends to BS 864 and BS EN 1254-1. Operation - Handwheel operated. Y11.2085D SCREWED END SERVICING VALVES - LEVER OPERATED: Materials - Copper alloy body. Ends - Screwed to BS 864 and BS EN 1254-2. Operation - Lever operated. Y11.2085E COMPRESSION END SERVICING VALVES - LEVER OPERATED: Materials - Copper alloy body. Ends - Compression fittings to BS 864 and BS EN 1254-2.



Operation - Lever operated. Y11.2085F CAPILLARY END SERVICING VALVES - LEVER OPERATED: Materials - Copper alloy body. Ends - Capillary ends to BS 864 and BS EN 1254-1. Operation - Lever operated. Y11.2085G SCREWED END SERVICING VALVES - SCREW DRIVER OPERATED: Materials - Copper alloy body. Ends - Screwed to BS 864 and BS EN 1254-2. Operation - Screw driver operated. Y11.2085H COMPRESSION END SERVICING VALVES - SCREW DRIVER OPERATED: Materials - copper alloy body. Ends - Compression fittings to BS 864 and BS EN 1254-2. Operation - Screw driver operated. Y11.2085I CAPILLARY END SERVICING VALVES - SCREW DRIVER OPERATED: Materials - Copper alloy body. Ends - Capillary ends to BS 864 and BS EN 1254-1. Operation - Screw driver operated. Y11.2090A LEVER OPERATED BUTTERFLY VALVES TO BS EN 593 BETWEEN FLANGES: Construction - Provide controlled elastomer compression on flange faces; semi-lugged wafer type design, for installation between flanged pipework connections, body to suit BS EN 1092-2. Provide lever and gear operated valves with long body neck for lagging clearance. Seat - Bonded. Materials - Cast iron body; stainless steel shaft; aluminium bronze disc; EPDM seat. Operation - Lever and graduated notch plate. Y11.2090B GEAR OPERATED BUTTERFLY VALVES TO BS EN 593 BETWEEN FLANGES: Construction - Provide controlled elastomer compression on flange faces; semi-lugged wafer type design, for installation between flanged pipework connections, body to suit BS EN 1092-2. Provide lever and gear operated valves with long body neck for lagging clearance. Seat - Bonded. Materials - Cast iron body; stainless steel shaft; aluminium bronze disc; EPDM seat. Operation - gear operated. Y11.2090C LEVER OPERATED BUTTERFLY VALVES BETWEEN MECHANICAL JOINTS: Construction - Wafer type design, for installation between mechanical joints, body with grooved ends. Provide lever operated valves with long body neck for lagging clearance. Seat - Bonded. Materials - Ductile iron body; stainless steel shaft; electroless nickel coated ductile iron disc; EPDM seat. Operation - Lever and graduated notch plate. Y11.2090D GEAR OPERATED BUTTERFLY VALVES BETWEEN MECHANICAL JOINTS: Construction - Wafer type design, for installation between mechanical joints, body with grooved ends. Provide gear operated valves with long body neck for lagging clearance. Seat - Bonded. Materials - Ductile iron body; stainless steel shaft; electroless nickel coated ductile iron disc; EPDM seat. Operation - gear operated.



Y11.2110A STOP VALVES - KEY OPERATED SLUICE TYPE A TO BS 5163-1 AND BS 5163-2: • Flanged to BS EN 1092-2, PN Valve type - A Seat - Resilient or metal seated. Stem seal - Stuffing box and gland; injector packing foil; or toroidal sealing rings (O-rings). Operation - T key. Materials - Manufacturer's standard and WRAS approved. Options - Stem cap. Y11.2125# POLYETHYLENE VALVES TO BS EN 13244-5: • Pattern

• Straight. • Angle. • Oblique.

• Material - polyethylene. • Standard - BS EN 13244-5. • Type

• Butt fusion. • Socket fusion. • Electrofusion. • Compression. • Flanged.

• Operation • Handwheel. • Valve actuator.

• Dimensions • BS EN 13244-4, section 6.

• Marking • BS EN 13244-4, tables 5 and 6.

• Finish • Black.

Y11.2180# REGULATING/FLOW MEASUREMENT VALVES - GLOBE TYPE TO BS EN 13789: • Performance - BS 7350. • Pattern

• Straight. • Oblique or Y.

• Valve face • Copper alloy faced. • Nickel alloy faced. • Stainless steel faced. • Resilient seated. • All iron.

• Stem • Non-rising stem inside screw. • Rising stem outside screw.

• Ends • Flanged to BS EN 1092-2 PN • Threaded to BS 21 and BS EN 10226-1.



• Grooved. • Material

• Manufacturer's standard. • Options

• Body tappings and plug. • Body tappings with self-sealing test plugs. • Back seat. • Locking device.

Y11.2190# REGULATING/FLOW MEASUREMENT VALVES - GLOBE TYPE TO BS 5154: • Performance to BS 7350. • Series

• A. • B.

• Pattern • Straight. • Oblique or Y.

• Ends • Threaded to BS 21 and BS EN 10226-1. • Flanged to BS EN 1092-3 PN • Compression to BS EN 1254-2. • Compression to BS EN 1254-3, or BS 864-5.

• Stem • Inside screw non-rising stem. • Outside screw rising stem.

• Trim material • Manufacturer's standard. • Suitable for potable water supply.

• Operation • Handwheel. • Lockshield.

• Options • Metallic renewable seat/disk rings. • Non-metallic renewable seat/disk rings. • Body tappings and drain plug. • Body tappings with self-sealing test plugs.

Y11.2200# REGULATING/FLOW MEASUREMENT VALVES - GLOBE TYPE TO BS EN 13709: • Performance - BS 7350. • Pattern

• Straight. • Oblique.

• Ends • Flanged to BS EN 1092-1, PN • Butt-weld body ends.

• Operation • Handwheel.

• Materials • Manufacturer's standard to suit fluid and operating conditions.



• Options • Body tappings and plug. • Body tappings with valve isolating test points. • Back seat.

Y11.2210A LEVER OPERATED REGULATING BUTTERFLY VALVES TO BS EN 593 BETWEEN FLANGES: Construction - Provide controlled elastomer compression on flange faces; semi-lugged wafer type design, for installation between flanged pipework connections, body to suit BS EN 1092-2. Provide lever and gear operated valves with long body neck for lagging clearance. Seat - Bonded seat. Materials - Cast iron body; stainless steel shaft; aluminium bronze disc; EPDM seat. Operation - Infinitely variable setting with travel stops and indicator, lever operation. Y11.2210B GEAR OPERATED REGULATING BUTTERFLY VALVES TO BS EN 593 BETWEEN FLANGES: Construction - Provide controlled elastomer compression on flange faces; semi-lugged wafer type design, for installation between flanged pipework connections, body to suit BS EN 1092-2. Provide lever and gear operated valves with long body neck for lagging clearance. Seat - Bonded seat. Materials - Cast iron body; stainless steel shaft; aluminium bronze disc; EPDM seat. Operation - Infinitely variable setting with travel stops and indicator, gear operation. Y11.2210C LEVER OPERATED REGULATING BUTTERFLY VALVES TO BS EN 593 BETWEEN MECHANICAL JOINTS: Construction - Installation between mechanical joints with grooved ends. Provide lever operated valves with long body neck for lagging clearance. Seat - Bonded seat. Materials - Ductile iron body; stainless steel shaft; rubber coated ductile iron disc; EPDM seat. Operation - Infinitely variable setting with travel stops and indicator, lever operation. Y11.2210D GEAR OPERATED REGULATING BUTTERFLY VALVES TO BS EN 593 BETWEEN MECHANICAL JOINTS: Construction - Installation between mechanical joints with grooved ends. Provide gear operated valves with long body neck for lagging clearance. Seat - Bonded seat. Materials - Ductile iron body; stainless steel shaft; rubber coated ductile iron disc; EPDM seat. Operation - Infinitely variable setting with travel stops and indicator, gear operation. Y11.2220A THREADED END DOUBLE REGULATING VALVES TO BS 7350, COPPER ALLOY: BS 7350, section 3.1. Ends - Threaded to BS 21 and BS EN 10226-1. Material - Bronze or DZR copper alloy to BS 5154. Series B; oblique or Y pattern; inside screw non-rising stem; manufacturer's standard trim material. Options - Provide drain plug facility; independent means for positive isolation on pressure tapping or adapter; and test and manufacturer's certificates as indicated. Y11.2220B FLANGED DOUBLE REGULATING VALVES TO BS 7350, COPPER ALLOY: BS 7350, section 3.1. Ends - Flanged to BS EN 1092-2. Material - Bronze or DZR copper alloy to BS 5154. Series B; oblique or Y pattern; inside screw non-rising stem; manufacturer's standard trim material. Options - Provide drain plug facility; independent means for positive isolation on pressure tapping or adapter; and test and manufacturer's certificates as indicated.



Y11.2220C FLANGED DOUBLE REGULATING VALVES TO BS 7350, CAST IRON: BS 7350, section 3.1. Ends - Flanged to BS EN 1092-2. Material - Cast iron to BS EN 13789. Oblique or Y pattern; copper alloy, nickel alloy or resilient valve face; rising stem outside screw or non-rising stem inside screw; manufacturer's standard materials. Options - Provide drain plug facility; independent means for positive isolation on pressure tapping or adapter; and test and manufacturer's certificates as indicated. Y11.2230A THREADED ENDS FLOW MEASUREMENT DEVICES TO BS 7350, COPPER ALLOY: BS 7350, section 3.2 - type 3 A fixed orifice either integral with or as a fixed orifice fitting close coupled to a double regulating globe valve. Ends - Threaded to BS 21 and BS EN 10226-1. Material - Double regulating globe valve, bronze or DZR copper alloy to BS 7350 table 6. Options - Independent means for positive isolation on pressure tapping or adapter. Y11.2230B FLANGED ENDS FLOW MEASUREMENT DEVICES TO BS 7350 TYPE 3, COPPER ALLOY: BS 7350, section 3.2 - type 3 A fixed orifice either integral with or as a fixed orifice fitting close coupled to a double regulating globe valve. Ends - Flanged to BS EN 1092-3. Material - Double regulating globe valve, bronze or DZR copper alloy to BS 7350 table 6. Options - Independent means for positive isolation on pressure tapping or adapter. Y11.2230C FLANGED FLOW MEASUREMENT DEVICE TO BS 7350 CAST IRON, TYPE 3: BS 7350, section 3.2 - type 3 A fixed orifice either integral with or as a fixed orifice fitting close coupled to a double regulating globe valve. Ends - Flanged to BS EN 1092-2. Material - Double regulating globe valve to BS EN 13789 and close coupled fixed orifice fitting to BS 7350, table 6. Options - Independent means for positive isolation on pressure tapping or adapter. Y11.2230E THREADED ENDS FLOW MEASUREMENT DEVICES TO BS 7350 TYPE 4, COPPER ALLOY: BS 7350, section 3.2 - type 4, variable orifice valve. Ends - Threaded to BS 21 and BS EN 10226-1. Material - Variable orifice, double regulating globe valve, bronze or DZR copper alloy to BS 5154 series B. Options - Independent means for positive isolation on pressure tapping or adapter. Y11.2230F FLANGED FLOW MEASUREMENT DEVICES TO BS 7350 TYPE 4, COPPER ALLOY: BS 7350, section 3.2 - type 4, variable orifice valve. Ends - Flanged to BS EN 1092-3. Material - Variable orifice, double regulating globe valve, bronze or DZR copper alloy to BS 5154 series B. Options - Independent means for positive isolation on pressure tapping or adapter. Y11.2230G FLOW MEASUREMENT DEVICES TO BS 7350 TYPE 4, CAST IRON: BS 7350, section 3.2 - type 4, variable orifice valve. Ends - Flanged to BS EN 1092-2. Material - Variable orifice, double regulating globe valve, cast iron to BS EN 13789. Options - Independent means for positive isolation on pressure tapping or adapter. Y11.2250# FLOW REGULATOR:



• Arrangement • Wafer pattern regulator. • Regulator in flanged housing. • Y pattern regulator. • Combined ball valve and regulator. • Combined ball valve and commissioning set.

• Size (mm) • Material

• Body • Ductile iron • Cast iron. • Stainless steel. • DZR copper alloy. • Bronze.

• Regulator • Stainless steel. • Nickel plated finish.

• Commissioning set • Venturi cartridge. • Oriface plate.

• Ends • Threaded to BS 21 and BS EN 10226-1. • Flanged to BS EN 1092-1 PN • Flanged to BS EN 1092-2 PN • Flanged to BS EN 1092-3 PN • Grooved. • Compression to BS EN 1254-2. • Compression to BS EN 1254-3, or BS 864-5. • Capillary to BS EN 1254-1. • Wafer.

• Options • Pressure/temperature tappings. • Stainless steel strainer element. • Drain valve. • Blowdown valve. • Extended stem.

Y11.2260A RADIATOR VALVES TO BS 2767 (TYPE 4): • Finish

• Natural. • Chromium plated.

Material - Bronze or brass copper alloy body. Pattern - Angle or straight to suit application. Straight - Threaded to BS 21 and BS EN 10226-1 or compression to BS EN 1254-2 to suit pipework as indicated. Angle - Threaded to BS 21 and BS EN 10226-1 with one end internal and other end external with union nut and tail pipe; or compression joint to BS EN 1254-2 one end and other end externally threaded to BS 21 and BS EN 10226-1 with union nut and tail pipe to suit pipework as indicated. Options - Fit wheel valves on flow connections to radiators, and other heat emitters, without thermostatic radiator valves. Fit lockshield valves on return connections.



Y11.2270A THERMOSTATIC RADIATOR VALVES TO BS EN 215 TABLE A.1: • Pattern

• Straight • Angle

Material to A.1. Pattern - Straight or angle pattern to suit application. Dimensions - Table A.1 series D. Thermostatic valve type - Integral sensor unless otherwise indicated. Y11.2270B THERMOSTATIC RADIATOR VALVES TO BS EN 215 TABLE A.2: • Pattern


Material to Annex A. Pattern - Straight or angle pattern to suit application. Dimensions - Table A.2 series F. Thermostatic valve type - Integral sensor unless otherwise indicated. Y11.2270C THERMOSTATIC RADIATOR VALVES TO BS EN 215 TABLE A.3: • Pattern


Material to Annex A. Pattern - Straight or angle pattern to suit application. Dimensions - Table A.3 series S. Thermostatic valve type - Integral sensor unless otherwise indicated. Y11.2270D THERMOSTATIC RADIATOR VALVES TO BS EN 215 TABLE A.4: • Pattern


Material to Annex A. Pattern - Straight or angle pattern to suit application. Dimensions - Table A.4 series GB. Thermostatic valve type - Integral sensor unless otherwise indicated. Y11.2270E TAMPER PROOF THERMOSTATIC RADIATOR VALVES TO BS EN 215 TABLE A.1: • Pattern


Material to Annex A. Pattern - Straight or angle pattern to suit application. Provide tamper proof TRV's. Dimensions - Table A.1 series D. Thermostatic valve type - Integral sensor unless otherwise indicated. Y11.2270F TAMPER PROOF THERMOSTATIC RADIATOR VALVES TO BS EN 215 TABLE A.2: • Pattern


Material to Annex A. Pattern - Straight or angle pattern to suit application.



Provide tamper proof TRV's. Dimensions - Table A.2 series S. Thermostatic valve type - Integral sensor unless otherwise indicated. Y11.2270G TAMPER PROOF THERMOSTATIC RADIATOR VALVES TO BS EN 215 TABLE A.3: • Pattern


Material - Annex A. Pattern - Straight or angle pattern to suit application. Provide tamper proof TRV's. Dimensions - Table A.3 series S. Thermostatic valve type - Integral sensor unless otherwise indicated. Y11.2270H TAMPER PROOF THERMOSTATIC RADIATOR VALVES TO BS EN 215 TABLE A.4: • Pattern


Material -Annex A. Pattern - Straight or angle pattern to suit application. Provide tamper proof TRV's. Dimensions - Table A.4 series GB. Thermostatic valve type - Integral sensor unless otherwise indicated. Y11.2280A FLOAT OPERATED VALVES TO BS 1212-1, COPPER FLOAT: Piston type float operated valve to BS 1212-1. Connection - Side or bottom entry to suit application. Float - Copper to BS 1968. Y11.2280B FLOAT OPERATED VALVES TO BS 1212-1, PLASTIC FLOAT: Piston type float operated valve to BS 1212-1. Connection - Side or bottom entry to suit application. Float - Plastic to BS 2456. Y11.2290A THREADED END FLOAT OPERATED VALVES, BALANCED EQUILIBRIUM: WRAS approved. Bronze or DZR copper alloy body. Inlet - Threaded to BS 21 and BS EN 10226-1. Spindle and head effectively guided and arranged with stops to engage with valve body and prevent over travel. Linkage fulcrum adjustable relative to vertical plane, securely locked to body tapping when set. Screwed plug from access cover. Float and lever arm. Spun copper float, halves brazed or welded together, with centre sleeve connecting to lever arm. For feed and expansion application use long arm type arranged to close when tank contains 150mm depth. Y11.2290B FLANGED FLOAT OPERATED VALVES, BALANCED EQUILIBRIUM: Bronze or DZR copper alloy body. Inlet - Flanged to BS EN 1092-3. Spindle and head effectively guided and arranged with stops to engage with valve body and prevent over travel. Linkage fulcrum adjustable relative to vertical plane, securely locked to body tapping when set. Screwed plug from access cover. Float and lever arm.



Spun copper float, halves brazed or welded together, with centre sleeve connecting to lever arm. For feed and expansion application use long arm type arranged to close when tank contains 150mm depth. Y11.2310# THERMOSTATIC CONTROL VALVES: • Operation

• Two way. • Three way. • High limit. • High limit with manual reset.

• Material • Brass. • Copper alloy to BS EN 1982. • Cast iron to BS EN 1561 and of tensile strength 140N/mm2or 170N/mm2, using separate

cast sample test method. • Cast steel to BS EN 10222 and BS EN 10213.

• Connections • Threaded to BS 21 and BS EN 10226-1. • Flanged to BS EN 1092-3 PN • Cast Steel, flanged to BS EN 1092-1 PN • Cast iron, flanged to BS EN 1092-2 PN

• Ancillaries • Position indicator. • Locking device. • Strainer. • Moisture trap. • Safety valve.

• Temperature sensor • Integral thermostat with an alpha/numeric set-point indicator and locking facility, where

indicated. • Remote sensor with an alpha/numeric/temperature set-point indicator; integral locking

facility, where indicated; and capillary connections between sensor and valve. Y11.2315A OPEN/CLOSE CONTROL BALL VALVES: Valve - Open/Close valve. Rotary Actuator - Open/close. Material - Nickel-plated brass; stainless steel ball; PTFE seal; stainless steel spindle; EPDM spindle seal. Connections - Threaded to BS 21 and BS EN 10226-1. Ancillaries - Lever for manual operation. Y11.2315B TWO WAY CONTROL BALL VALVES: Valve - Two way control valve. Rotary Actuator - Modulating. Material - Nickel-plated brass; stainless steel ball; PTFE seal; stainless steel spindle; EPDM spindle seal. Connections - Threaded to BS 21 and BS EN 10226-1. Ancillaries - Lever for manual operation. Y11.2315C THREE WAY CONTROL BALL VALVES: Valve - Three way control valve. Rotary Actuator - Modulating.



Material - Nickel-plated brass; stainless steel ball; PTFE seal; stainless steel spindle; EPDM spindle seal. Connections - Threaded to BS 21 and BS EN 10226-1. Ancillaries - Lever for manual operation. Y11.2320A THREADED ENDS SWING CHECK VALVES TO BS 5154: Series B; horizontal pattern. Ends - Threaded to BS 21 and BS EN 10226-1. Trim material - Manufacturer's standard. Y11.2320B FLANGED SWING CHECK VALVES TO BS 5154: Series B; horizontal pattern. Ends - Flanged to BS EN 1092-3. Trim material - Manufacturer's standard. Y11.2330A FLANGED SWING CHECK VALVES TO BS EN 12334 Check valve type to BS EN 736-1 - Swing. Body type - Flanged. Ends - Flanged to BS EN 1092-2. Body and cover materials - Grey cast iron or SG cast iron. Orientation of pipework - Horizontal or vertical. Y11.2330B WAFER BODY SWING CHECK VALVES TO BS EN 12334: Check valve type to BS EN 736-1 - Swing. Body type - Wafer. Body and cover materials - Grey cast iron or SG cast iron. Orientation of pipework - Horizontal or vertical. Y11.2330C FLANGED LIFT CHECK VALVES TO BS EN 12334: Check valve type to BS EN 736-1 - Lift. Body type - Flanged. Ends - Flanged to BS EN 1092-2. Body and cover materials - Grey cast iron or SG cast iron. Orientation of pipework - Horizontal or vertical. Y11.2330D WAFER BODY LIFT CHECK VALVES TO BS EN 12334: Check valve type to BS EN 736-1 - Lift. Body type - Wafer. Body and cover materials - Grey cast iron or SG cast iron. Orientation of pipework - Horizontal or vertical. Y11.2340A FLANGED SWING CHECK VALVES TO BS EN 12334: Wafer pattern design suitable for installation between flanged pipework, body to suit BS EN 1092-2. Disc - Double disc. Type - Light spring type. Seat - Bonded. Materials - Cast iron body; bronze disc; EPDM seat. Y11.2385A COMBINED CHECK AND ANTI-VACUUM DEVICE TO PREVENT CONTAMINATION OF WATER BY BACKFLOW TO BS EN 14451: Standard - BS EN 14451 combined check and anti-vacuum valves. WRAS approval. Ends - Compression connections to BS EN 1254-2.



Y11.2390A COMBINED CHECK AND ANTI-VACUUM TYPE ANTI BACK SYPHONAGE VALVES: Bronze or DZR copper alloy body assembly with compression connections to BS EN 1254-2. Pattern - In-line pattern. Components - Stainless steel domed air inlet. Non-return valve with plastic body, rubber actuator and stainless steel to plastic seal. WRAS approval. Y11.2391A HOSE UNION ANTI-VACUUM TYPE ANTI BACK SYPHONAGE VALVES: Bronze or DZR copper alloy body assembly with fittings to BS EN ISO 228-1. Pattern - In line pattern. Sizes - DN15 to DN25. WRAS Approval. Y11.2395A VERIFIABLE BACKFLOW PREVENTER WITH REDUCED PRESSURE ZONE (RPZ) VALVE - GENERAL REQUIREMENTS: Provide an application to the local water supplier using the WRAS "RPZ Valve Assembly - Application for Installation" form. Obtain Water Supplier agreement that a Type BA device is a suitable means of backflow protection in the water supply system under consideration. Test methods and maintenance regimes shall be in accordance with the Water Suppliers requirements and any failure to comply may result in termination of supply or removal of the device. These maintenance requirements must be detailed within the project Operation & Maintenance documentation. The fitting must be included in the WRAS "Water Fittings and Materials Directory" and satisfy the requirements of the Regulations. The installer must obtain formal Water Supplier agreement that a Type BA device is a suitable means of backflow protection in the plumbing system under consideration before installation. Confirm that any Type BA device installed provides protection against back pressure and back siphonage at the point of use from fluids up to and including Category 4 as defined in the Water Supply (Water Fittings) Regulations 1999. Comply with the stipulations and requirements set out in WRAS Approved Installation Method Document AIM-08-01.. Y11.2395B VERIFIABLE BACKFLOW PREVENTER WITH REDUCED PRESSURE ZONE (RPZ) VALVE - INSTALLATION: The Type BA device shall not be installed in a place or position which is: Liable to flooding Above electrical equipment

Liable to mechanical or other damage Exposed to freezing - unless measures are taken to prevent the assembly from freezing

Concealed The assembly shall be: • Installed horizontally with the relief valve discharging downwards • Installed with an inline strainer fitted immediately upstream of the device - to prevent fouling

of elements of the assembly • Installed above ground at a height enabling effective inspection and maintenance • Installed not less than 300mm above ground or floor level or the base of any cabinet to the

underside of the exit port of the relief valve • Installed no more than 1500mm above ground or floor level • Installed with an air break between the relief outlet port and the top of the allied tundish Following installation the assembly shall be flushed and disinfected in accordance with BS 6700. Following flushing and prior to commissioning and site test, the assembly shall be checked by the installer to ensure that the relief valve functions correctly - in accordance with the guidelines in WRAS Approved Installation Method Document AIM-08-01.



Y11.2395C VERIFIABLE BACKFLOW PREVENTER WITH REDUCED PRESSURE ZONE (RPZ) VALVE - ON SITE INSPECTION AND TESTING: Site testing must only be carried out by an accredited tester approved by the Water Supplier. Testing shall be carried out at intervals not exceeding 12 months. Test data during the commissioning of the assembly and at subsequent intervals shall be entered on the "RPZ Valve Test Report Form" produced by the WRAS. The inspections and testing shall be in accordance with WRAS Approved Installation Method Document AIM-08-01. On completion of site tests, a certificate must be completed by the tester in accordance with WRAS Guidance Note and copies submitted to the water supplier and the person responsible for the device. Copies shall be included in the Operation and Maintenance Manuals, including interval periods for subsequent testing. Y11.2395D VERIFIABLE BACKFLOW PREVENTER WITH REDUCED PRESSURE ZONE (RPZ) VALVE - RECORD OF INSTALLATION AND TEST DATA: Provide records for each assembly in accordance with WRAS Approved Installation Method Document AIM-08-01. In general, the record shall indicate the following:

Purpose of the assembly Precise location of the assembly Data pertaining to prescribed tests

Details of the person who carried out the test Frequency of tests Defects found and measures taken to remedy these defects The installation, commissioning and subsequent test data shall be forwarded to the Water Supplier and copies retained by the Tester and the Water Supplier's customer for a period of at least five years. Y11.2400# PRESSURE REDUCING VALVES - INTEGRAL SENSOR TYPE: • Material

• Bronze or DZR copper alloy body threaded to BS 21 and BS EN 10226-1. • Stainless steel valve and seat and return spring. • Phosphor bronze bellows.

• Components • Control spring and hand wheel. • Integral sensor with an alpha/numeric pressure set-point indicator and locking facility.

Y11.2410# PRESSURE REDUCING VALVES - PILOT OPERATED TYPE: • Material

• Cast iron body. • Cast steel body. • Malleable iron body. • Stainless steel valve and seat and return spring. • Stainless steel diaphragm.

• Components Control spring. Single seat design for tight shut off. Pressure control pipe with stop cock. Pressure setting handwheel with padlock.

• Connections • Threaded to BS 21 and BS EN 10226-1. • Flanged to BS EN 1092-1 PN



• Flanged to BS EN 1092-2 PN • Flanged to BS EN 1092-3 PN

• Ancillaries • Position indicator. • Locking device. • Strainer. • Moisture trap. • Safety valve.

Y11.2420# PRESSURE CONTROL VALVES - DIRECT ACTING TYPE: Provide valves to maintain a pressure downstream of valve. • Material

• Cast iron body. • Cast steel body. • Malleable iron body. • Stainless steel valve and seat and return spring. • Phosphor bronze bellows.

• Components • Control spring and handwheel. • Integral sensor with an alpha/numeric pressure set-point indicator and locking facility.

• Connections • Threaded to BS 21 and BS EN 10226-1. • Flanged to BS EN 1092-1 PN • Flanged to BS EN 1092-2 PN • Flanged to BS EN 1092-3 PN

Y11.2422# IN LINE DIFFERENTIAL PRESSURE CONTROL VALVES - DIRECT ACTING TYPE: Provide valves to maintain a constant differential pressure upstream of the valve. • Material

• Cast iron body. • Cast steel body. • Malleable iron body. • Brass body. • Stainless steel valve and seat and return spring. • Phosphor bronze bellows.

• Components • Control spring and actuator. • Valve body and bellows.


Y11.2424# BYPASS DIFFERENTIAL PRESSURE CONTROL VALVES - DIRECT ACTING TYPE: Provide valves to maintain a minimum circuit flow rate as system loads change. • Material

• Cast iron body. • Cast steel body. • Malleable iron body.



• Brass body. • Stainless steel valve and seat and return spring. • Phosphor bronze bellows.

• Components • Control spring and actuator. • Valve body and bellows.


Y11.2430A SAFETY VALVES TO BS EN ISO 4126-1, COPPER ALLOY, SINGLE SPRING: Material - Bronze or DZR copper alloy body. Ends - Threaded to BS 21 and BS EN 10226-1. Spring type - Single spring loaded, high lift type. Y11.2430B SAFETY VALVES TO BS EN ISO 4126-1, COPPER ALLOY, DOUBLE SPRING: Material - Bronze or DZR copper alloy body. Ends - Threaded to BS 21 and BS EN 10226-1. Spring type - Double spring loaded, high lift type. Y11.2440A DRAIN COCKS, THROUGHWAY GLAND COCK: Bronze body threaded male to BS 21 and BS EN 10226-1. Tapered plug with square shank for loose lever; bolted gland; strap and blank cap screwed on hand tight. Outlet to accept hose union. Y11.2450 DRAIN COCKS - SCREWDOWN TO BS 2879, TYPE 1: Bronze body threaded male to BS 21 and BS EN 10226-1. Screw down plug with square shank for loose lever. Serrated outlet to accept hosepipe, fixed or union pattern. Lockshield to accept key. Y11.2460 DRAIN COCKS - BALL TYPE: Bronze or DZR copper alloy body; chrome-plated DZR ball; PTFE seats and stem seals; blow-out proof stem; strap and blank cap screwed on hand tight; serrated outlet to accept hose pipe. Lockshield key operated. Y11.2470 VENT COCKS - TWO WAY GLAND COCK TYPE: Bronze body threaded to BS 21 and BS EN 10226-1; tapered plug with square shank for loose lever; plug position indicator; bolted gland. Y11.2480 VENT COCKS - BALL TYPE: Bronze or DZR copper alloy body; chrome-plated DZR ball; PTFE seats and stem seals; blow-out proof stem. Permanently identified ports in T-configuration. Lever operated. Y11.2490 VENT COCKS - THREE WAY GLAND COCK TYPE: Bronze body threaded to BS 21 and BS EN 10226-1; tapered plug with square shank for loose lever; plug position indicator; port markings to indicate inlet,vent, waste; bolted gland. Port configuration, T port. Y11.2500A THREE WAY PLUG VALVE VENT COCKS - WRENCH OPERATED:



Cast iron body, plug and bottom cover. PTFE thrust washer. Ends - Flanged to BS EN 1092-2. T port configuration. Wrench operation. Y11.2500B THREE WAY PLUG VALVE VENT COCKS - GEAR OPERATED: Cast iron body, plug and bottom cover. PTFE thrust washer. Ends - Flanged to BS EN 1092-2. T port configuration. Gear operation. Y11.2510A AUTOMATIC AIR VENTS, FLOAT TYPE: Construction - Bronze or DZR copper alloy body with threaded inlet to BS 21 and BS EN 10226-1. Solid polypropylene float and air release valve. Ensure valve is self closing. Operating Conditions - Maximum temperature 130oC. Maximum pressure 10 bar. Options - Provide connection for piping away released air and integral non-return valve where indicated. Y11.2515A MICROBUBBLE TEMPERATURE DIFFERENTIAL DEAERATORS: Construction - Vertical mild steel housing incorporating internal spiral wound copper mesh system. Provide automatic air release mechanism. Ends - Line size with flanges to BS EN 1092-1, PN 16. Operating conditions - Maximum temperature 110oC, maximum pressure 10 bar. Y11.2520A LTHW PRESSURE DIFFERENTIAL DEAERATORS: Unit - Provide a self circulating unit connected to the system by two 15mm connections at least 500mm apart. Isolation - Provide valves to isolate the vessel from the main system. Operating conditions - Maximum temperature 110oC, maximum pressure 10 bar. Y11.2520B CHILLED WATER PRESSURE DIFFERENTIAL DEAERATORS: Unit - Provide a self circulating unit connected to the system by two 15mm connections at least 500mm apart.Insulate to prevent condensation. Isolation - Provide valves to isolate the vessel from the main system. Operating conditions - Maximum temperature 110oC, maximum pressure 10 bar. Y11.2521A CENTRIFUGAL AIR SEPARATORS: Construction - Vertical steel housing with offset inlet and outlet ports to remove bubbles via centrifugal force. Provide automatic air release mechanism. Ends - Line size with flanges to BS EN 1092-1, PN 16. Operating conditions - Maximum temperature 110oC, maximum pressure 10 bar. Y11.2522A GRAVITATION DIRT SEPARATORS: Construction - Vertical mild steel housing with internal reservoir, sludge pipe, perforation plate and automatic air release mechanism. Ends - Line size with flanges to BS EN 1092-1, PN 16. Operating conditions - Maximum temperature 110oC, maximum pressure 10 bar. Y11.2524A MICROBUBBLE AIR AND DIRT SEPARATORS: Construction - Vertical steel housing with internal large surface area mechanism to remove microbubbles via coalescence effect. Fitted with dirt drain at its lowest point for removing dirt that sinks, and fitted with a dirt drain valve on the side of the housing for removing dirt that floats on the water. Provide automatic air release mechanism. Ends - Line size with flanges to BS EN 1092-1, PN 16.



Operating conditions - Maximum temperature 110oC, maximum pressure 10 bar. Y11.2530# STEAM TRAPS AND ACCESSORIES: • Conform to BS EN 26553 and, where appropriate, BS EN 26554. • Components

• Dirt pocket with removable end cap or flange. • Steam stop valve. • Union. • Strainer (if not integral with trap). • Steam trap. • Steam trap indicators. • Union. • Sight glass. • Non-return valve. • Stop valve.

Y11.2540# STEAM TRAPS - THERMOSTATIC TYPE, BALANCED PRESSURE: Bronze or DZR copper alloy body with threaded ends to BS 21 and BS EN 10226-1. Seamless stainless steel capsular element. Stainless steel internal components with renewable seat. • Provide with close coupled straight pattern strainer. Y11.2550 STEAM TRAPS - THERMOSTATIC TYPE, BI-METALLIC: Steel body and cover with threaded ends to BS 21 and BS EN 10226-1, suitable for horizontal in-line mounting. Thermostatic element in corrosion resistant multiple cross disc type bimetal stainless steel. Integral stainless steel strainer. Y11.2560# STEAM TRAPS - FLOAT TYPE: • Material

• Malleable iron body. • Cast iron body.

Stainless steel float, air vent and internal components. • Ends - Threaded ends to BS 21 and BS EN 10226-1. • Mounting

• Horizontal in-line. • Options

• Steam lock release facility. • Combined thermostatic air vent and steam lock release facilities.

Y11.2570# STEAM TRAPS - THERMODYNAMIC TYPE: • Material

• Stainless steel body. • Cast steel body.

Stainless steel disc with screwed cap. • Ends

• Threaded ends to BS 21 and BS EN 10226-1. • Integral strainer with access plug and stainless steel screw. • Options

• Isolating cover. • Blowdown cock fitted to strainer cap. • Air venting disc.



Y11.2580 STEAM TRAPS - INVERTED BUCKET TYPE: Cast iron body with threaded ends to BS 21 and BS EN 10226-1. Stainless steel bucket and internal components. Integral strainer with access plug and stainless steel element. Bolted cover with gasket. Y11.2590# STEAM TRAP FAILURE INDICATORS: • Materials

• Cast iron sensing chamber body. • Cast steel sensing chamber body.

Stainless steel internal sensor and sensor gasket. • Ends - Threaded ends to BS 21 and BS EN 10226-1. • Connect into assembly upstream of steam trap • Provide plug-in solid state electronic indicators complete with batteries, number Y11.2600# SIGHT GLASSES: Bronze or DZR copper alloy body threaded female to BS 21 and BS EN 10226-1. • Glass window.

• Single window type. • Double window type.

Locate remote from fluid discharges to avoid damage by thermal or pressure shock conditions. Y11.2610A STEEL EXPANSION LOOPS: • Galvanized after manufacture. Provide expansion loop in material and finish of associated pipeline. Size to limit stress set up in material of pipe wall to 69 MPa. Forge bend from a single length of pipe or join by welding fittings if expansion loops are too large to manufacture in one piece. Where indicated, galvanize after manufacture. Y11.2620 EXPANSION LOOPS - COPPER: Provide expansion loop in material and finish of associated pipeline. Size to limit total stress set up in material of pipe wall to less than 51.5 MPa. Forge bend from a single length of pipe. Y11.2630A THREADED END EXPANSION COMPENSATORS, AXIAL BELLOWS: Ends - Threaded to BS 21 and BS EN 10226-1. Bellows - Stainless steel, multi ply or single-ply construction fitted with stainless steel inner sleeves. Operation - Supply expansion joints capable of not less than 2000 complete reversals of movement at the given working conditions; and of withstanding a pressure test of 1.5 times the design pressure without deformation. Y11.2630B FLANGED EXPANSION COMPENSATORS, AXIAL BELLOWS: Ends - Flanged to BS EN 1092-1. Bellows - Stainless steel, multi-ply or single-ply construction fitted with stainless steel inner sleeves. Operation - Supply expansion joints capable of not less than 2000 complete reversals of movement at the given working conditions; and of withstanding a pressure test of 1.5 times the design pressure without deformation. Y11.2630D THREADED ENDS EXPANSION COMPENSATORS, ARTICULATED BELLOWS: Ends - Threaded to BS 21 and BS EN 10226-1.



Bellows - Stainless steel, multi-ply or single-ply construction fitted with stainless steel inner sleeves. Operation - Supply expansion joints capable of not less than 2000 complete reversals of movement at the given working conditions; and of withstanding a pressure test of 1.5 times the design pressure without deformation. Y11.2630E FLANGED EXPANSION COMPENSATORS, ARTICULATED BELLOWS: Ends - Flanged to BS EN 1092-1. Bellows - Stainless steel, multi-ply or single-ply construction fitted with stainless steel inner sleeves. Operation - Supply expansion joints capable of not less than 2000 complete reversals of movement at the given working conditions; and of withstanding a pressure test of 1.5 times the design pressure without deformation. Y11.2640A THREADED END HOSE COMPENSATORS: Supply convoluted stainless steel hose with stainless steel braiding. Fully welded construction. Ends - Threaded ends to BS 21 and BS EN 10226-1. Operation - Supply hose compensators capable of not less than 2000 complete reversals of movement at the given working conditions; and of withstanding a pressure test of 1.5 times the design pressure without deformation. Y11.2640B FLANGED HOSE COMPENSATORS: Supply convoluted stainless steel hose with stainless steel braiding. Fully welded construction. Ends - Flanged to BS EN 1092-1. Operation - Supply hose compensators capable of not less than 2000 complete reversals of movement at the given working conditions; and of withstanding a pressure test of 1.5 times the design pressure without deformation. Y11.2650A FLANGED EPDM RUBBER FLEXIBLE CONNECTIONS UP TO 10 BAR AND 100 DEGREE C: Material - EPDM rubber with wire reinforced cuffs. Steel reinforcement within the body. Marking - Mould date of manufacture on bellows. Show manufacturer and type. Ends - Flanges to BS EN 1092-1 that can swivel and are removable. Operation - Ensure flexible connections have a design life of 120 months at 100oC. Provide tie bars with rubber top hat washers where working pressure exceeds 4 bar. Supply threaded tie bars with adjustable length. Ensure flexible connections are tied when the plant is on vibration isolation mountings. Y11.2650B THREADED END EPDM RUBBER FLEXIBLE CONNECTIONS UP TO 10 BAR AND 100 DEGREE C: Material - EPDM rubber with wire reinforced cuffs. Steel reinforcement within the body. Marking - Mould date of manufacture on bellows. Show manufacturer and type. Ends - Threaded to BS 21 and BS EN 10226-1 with one union end. Operation - Ensure flexible connections have a design life of 120 months at 100oC. Provide tie bars with rubber top hat washers where working pressure exceeds 4 bar. Supply threaded tie bars with adjustable length. Ensure flexible connections are tied when the plant is on vibration isolation mountings. Y11.2650C FLEXIBLE CONNECTIONS ABOVE 100 DEGREE C: Material - Convoluted stainless steel, fully welded. Ends - Flanged to BS EN 1092-1. Ensure flanges can swivel. Operation - Ensure flexible connections are tied when the plant is on vibration isolation mountings.



Y11.2650H FLANGED CHLOROBUTYL RUBBER FLEXIBLE CONNECTIONS UP TO 10 BAR AND 60 DEGREE C: Material - Multi-ply reinforced chlorobutyl rubber with wire reinforced cuffs. Synthetic fibre reinforcement within the body. Marking - Mould date of manufacture on bellows. Show manufacturer and type. Ends - Flanges to BS EN 1092-1 that can swivel and are removable. Operation - Ensure flexible connections have a design life of 120 months at given conditions. Provide tie bars with rubber top hat washers where working pressure exceeds 4 bar. Supply threaded tie bars with adjustable length. Ensure flexible connections are tied when the plant is on vibration isolation mountings. Y11.2660A TERMINAL UNIT CONNECTIONS FOR HEATING SERVICES - STAINLESS STEEL: Material - Stainless steel convoluted hose with stainless steel overbraiding. Carbon steel, stainless steel or copper tube end connections. Fully welded construction. Operation - Ensure hose length is sufficient to prevent the minimum hose bend radius from being exceeded during installation and commissioning. Working pressure 15 - 20 bar and temperature 95oC. Y11.2660B TERMINAL UNIT CONNECTIONS WITH QUICK RELEASE COUPLINGS FOR HEATING SERVICES - STAINLESS STEEL: Material - Stainless steel convoluted hose with stainless steel overbraiding.Carbon steel, stainless steel or copper tube end connections. Fully welded construction. Operation - Ensure hose length is sufficient to prevent the minimum hose bend radius from being exceeded during installation and commissioning. Working pressure 15 - 20 bar and temperature 95oC. Options - Supply quick release couplings with screwed ends. Materials - Male and female nickel plated brass halves each with shut-off valve with rubber seat. Locking mechanism of stainless steel balls and stainless steel internal valve springs. Y11.2660D TERMINAL UNIT CONNECTIONS FOR CHILLED WATER SERVICES - STAINLESS STEEL: Material - Stainless steel convoluted hose with stainless steel overbraiding. Carbon steel, stainless steel or copper tube end connections. Fully welded construction. Nitrile rubber Class Ò' insulation with vapour seal and end protection caps. Operation - Ensure hose length is sufficient to prevent the minimum hose bend radius from being exceeded during installation and commissioning. Working pressure 15 - 20 bar and temperature 95oC. Y11.2660E TERMINAL UNIT CONNECTIONS WITH QUICK RELEASE COUPLINGS FOR CHILLED WATER SERVICES - STAINLESS STEEL: Material - Stainless steel convoluted hose with stainless steel overbraiding. Carbon steel, stainless steel or copper tube end connections. Fully welded construction. Nitrile rubber Class Ò' insulation with vapour seal and end protection caps. Operation - Ensure hose length is sufficient to prevent the minimum hose bend radius from being exceeded during installation and commissioning. Working pressure 15 - 20 bar and temperature 95oC. Options - Supply quick release couplings with screwed ends. Material - Male and female nickel plated brass halves each with shut-off valve with rubber seat. Locking mechanism of stainless steel balls and stainless steel internal valve springs. Y11.2660F TERMINAL UNIT CONNECTIONS FOR CHILLED WATER SERVICES - RUBBER: Material - EPDM inner liner with stainless steel wire braid. Nickel plated brass fittings with stainless steel ferrules. Nitrile rubber Class Ò' insulation with vapour seal and end protection caps.



Operation - Ensure hose length is sufficient to prevent the minimum hose bend radius from being exceeded during installation and commissioning. Working pressure 15 - 20 bar and temperature 95oC. Y11.2670A TEST PLUGS, SELF SEALING: Provide DZR copper alloy self sealing test plugs for measurement of temperature and pressure, complete with captive cap for sealing when not in use. Ensure test plugs are suitable for system operating temperature and pressure. Provide one thermometer and pressure gauge for each range of conditions, for use with test plugs. Y11.2670B TEST PLUGS, VALVE CONTROLLED: Provide DZR copper alloy self valve controlled test plugs for measurement of temperature and pressure, complete with captive cap for sealing when not in use. Ensure test plugs are suitable for system operating temperature and pressure. Provide one thermometer and pressure gauge for each range of conditions, for use with test plugs. Y11.2680A THREADED PIPELINE STRAINERS, BRONZE: Material - Bronze to BS EN 1982. Ends - Threaded to BS 21 and BS EN 10226-1. Pattern - Y pattern body. Screen free area - Not less than 250% of pipe bore. Screen perforations

15 to 50mm nominal size, within range 0.7 - 0.9 mm diameter. 65mm and over nominal size, within range 1.5 - 1.8mm diameter.

Internal to external flow through screen. Provide plugged connections for drain, air vent and differential pressure monitoring, threaded to BS 21 and BS EN 10226-1. Y11.2680B FLANGED PIPELINE STRAINERS, BRONZE: Material - Bronze to BS EN 1982. Ends - Flanged to BS EN 1092-3. Pattern - Y pattern body. Screen free area - Not less than 250% of pipe bore. Screen perforations


Internal to external flow through screen. Provide plugged connections for drain, air vent and differential pressure monitoring, threaded to BS 21 and BS EN 10226-1. Y11.2680C COMPRESSION PIPELINE STRAINERS, BRONZE: Material - Bronze to BS EN 1982. Ends - Compression fittings to BS EN 1254-2. Pattern - Y pattern body. Screen free area - Not less than 250% of pipe bore. Screen perforations


Internal to external flow through screen. Provide plugged connections for drain, air vent and differential pressure monitoring, threaded to BS 21 and BS EN 10226-1. Y11.2680D PIPELINE STRAINERS, CAST IRON: Material - Cast iron. Ends - Flanged to BS EN 1092-2. Pattern - Y pattern body.



Screen free area - Not less than 250% of pipe bore. Screen perforations


Internal to external flow through screen. Provide plugged connections for drain, air vent and differential pressure monitoring, threaded to BS 21 and BS EN 10226-1. Y11.2690A TUNDISHES, COPPER: Provide tundishes located adjacent to equipment, as indicated. Use 3mm minimum thickness copper sheet. Form sheet into a tapered reducing cone with a minor diameter to suit drain line. Major diameter nominally 50 mm larger than minor diameter, tapering at approximately 30 degrees. Y11.2690B TUNDISHES, MILD STEEL, GALVANIZED: Provide tundishes located adjacent to equipment, as indicated. Use mild steel sheet; galvanize after manufacture. Form sheet into a tapered reducing cone with a minor diameter to suit drain line. Major diameter nominally 50 mm larger than minor diameter, tapering at approximately 30 degrees. Y11.2700A GAUGES, GENERAL: • 150mm black stove enamel finish

• 2700B GAUGES, 150MM DIAMETER, FLUSH PANEL: Dial case - 150mm diameter, heavy pattern, finished in black stove enamel for flush mounting. Mount gauges with dial face in vertical plane flush to panel and conceal casing within a steel metal cubicle.

• 2700C GAUGES, 150MM DIAMETER, DIRECT MOUNTING: Dial case - 150mm diameter, heavy pattern finished in black stove enamel, for direct connection to instrument. Mount gauges with dial face in vertical plane and support casing by connection to instrument.

• 2700D GAUGES, 150MM DIAMETER, FLANGED: Dial case - 150mm diameter, heavy pattern finished in black stove enamel, with annular mounting flange. Mount gauges with dial face in vertical plane and surface mount casing to equipment or building element, as required.

• 100mm - finish • 2700E GAUGES, 100MM DIAMETER, FLUSH MOUNTING:

Dial case - 100mm diameter for flush mounting to steel panel. Mount gauges with dial face in vertical plane flush to panel and conceal casing within a steel metal cubicle.

• 2700F GAUGES, 100MM DIAMETER, DIRECT MOUNTING: Dial case - 100mm diameter for direct connection to instrument. Mount gauges with dial face in vertical plane and support casing by connection to instrument.

• 2700G GAUGES, 100MM DIAMETER, FLANGE MOUNTING: Dial case - 100mm diameter with annular mounting flange. Mount gauges with dial face in vertical plane and surface mount casing to equipment or building element, as required.

Use dial type gauges of robust construction, enclosed in dust tight metal cases. Retain dial glass with bezels screwed to case. Finish with chromium plating.



Use white dial scales indelibly and clearly marked with black lettering to indicate measured values. Select scale ranges which indicate `Normal' when pointer is vertical or central on scale. Y11.2700B GAUGES, 150MM DIAMETER, FLUSH PANEL: Dial case - 150mm diameter, heavy pattern, finished in black stove enamel for flush mounting. Mount gauges with dial face in vertical plane flush to panel and conceal casing within a steel metal cubicle. Y11.2700C GAUGES, 150MM DIAMETER, DIRECT MOUNTING: Dial case - 150mm diameter, heavy pattern finished in black stove enamel, for direct connection to instrument. Mount gauges with dial face in vertical plane and support casing by connection to instrument. Y11.2710A TEMPERATURE GAUGES, GENERAL: • 2710B TEMPERATURE GAUGES, MERCURY IN STEEL:

Provide mercury in steel temperature gauge, mounted direct in pocket. • Vapour pressure to BS EN 13190

• 2710C TEMPERATURE GAUGES, VAPOUR PRESSURE TO BS 5235 FOR DIRECT MOUNTING: Vapour pressure type to BS EN 13190, mounted direct in pocket, with horizontal or vertical stem as appropriate.

• 2710D TEMPERATURE GAUGES, VAPOUR PRESSURE TO BS 5235 FOR REMOTE MOUNTING: Vapour pressure type to BS EN 13190, for remote mounting with capillary tube of sufficient length to allow slack run to immersion bulb. Protect capillary along full length by a flexible sheath jointed to dial case and bulb.

• 2710# TEMPERATURE GAUGES: • Use temperature gauges with pocket and provided with gland attachment on

thermometer stem. • Type

• Mercury in steel, mounted direct in pocket. • Vapour pressure to BS EN 13190, mounted direct in pocket with horizontal or vertical

stem as appropriate. • Vapour pressure to BS EN 13190, for remote mounting with capillary tube of

sufficient length to allow slack run to immersion bulb. Protect capillary along full length by a flexible sheath jointed to dial case and bulb.

• Use separable type pockets, threaded 15/19mm BSP and manufactured from • stainless steel.

• Screw pockets into tapped bosses or stools set in pipelines or vessels. Fill pockets with oil to BS 7207 to ensure contact with thermometer bulb.

• Provide gauges with dial graduation in degrees celsius marked on a logarithmic scale. Ensure pointer movement is clockwise for increase in temperature.

• Provide sensing elements for air and gas systems, where indicated, and fix to provide airtight joints. Provide with metal shielding around sensing element to prevent effects of local radiation from equipment.

Mercury in steel type, mounted direct in pocket. Use temperature gauges with pocket and provided with gland attachment on thermometer stem. Use separable type pockets, threaded 15/19mm BSP and manufactured from stainless steel. Screw pockets into tapped bosses or stools set in pipelines or vessels.Fill pockets with oil to BS 7207 to ensure contact with thermometer bulb. Provide gauges with dial graduation in degrees celsius marked on alogarithmic scale. Ensure pointer movement is clockwise for increase in temperature.



Provide sensing elements for air and gas systems, where indicated, and fix to provide airtight joints. Provide with metal shielding around sensing element to prevent effects of local radiation from equipment. Y11.2710B TEMPERATURE GAUGES, MERCURY IN STEEL: Provide mercury in steel temperature gauge, mounted direct in pocket. Y11.2710C TEMPERATURE GAUGES, VAPOUR PRESSURE TO BS 5235 FOR DIRECT MOUNTING: Vapour pressure type to BS EN 13190, mounted direct in pocket, with horizontal or vertical stem as appropriate. Y11.2720 PRESSURE AND ALTITUDE GAUGES: Use vapour pressure type gauges to BS EN 837-1. Connect to pipeline systems via matched gauge cocks and cock connectors. Ensure dial graduation is from zero to between 1.5 and 3.0 times normal working pressure. Graduate in bar (gauge) on gauges reading head or working pressure, or in Pascals where pressure differences across plant items are to be established. Where fitted on boilers and pressure vessels, clearly mark with operating and maximum permissible working heads in accordance BS 759. Elsewhere provide gauges with normal working pressure. Ensure dial movement is clockwise for an increasing in head. Fit syphons on steam systems. Provide flexible piping where gauge is subject to noticeable vibration. Fit gauge cocks preceding all connections to altitude and pressure gauges. Copper alloy, tapered ground plug, with ebonite lever. Unless flanged joints are required, screw inlet ends female and fit outlet ends with union connections allowing removal of gauges. Y11.2730 VACUUM GAUGES: Use vacuum gauges complying with BS EN 837-1. Calibrate in mm of mercury. Y11.2750A GAUGE MOUNTING BOARDS, HARDWOOD: Manufacture from 12mm thick, polished hardwood. Mount on walls or purpose made steel frames at a height approximately 1.3m above floor level. Y11.3010A LOOSE ITEMS, KEYS FOR SPINDLE SHANK VALVES: • Number Provide tee handled short shank keys suitable for each size of valve spindle shank. Y11.3010B LOOSE ITEMS, FOR DRAIN COCKS: • Number Provide lever pattern keys suitable for each drain cock and loose hose unions for drain cocks. Y11.4010 INSTALLATION: Install pipeline ancillaries in accordance with manufacturer's recommendations and BS 6683. Y11.4020 LOCATION: • Positions Install valves, cocks, traps, strainers, test plugs, tundishes and other ancillary equipment in positions indicated. Y11.4025 LOCATION OF THERMOSTATIC RADIATOR VALVES: Install thermostatic radiator valves in an area which reflects the space temperature. Ensure that they are not behind curtains or enclosed in heating or radiator panels. Y11.4030 POSITIONING OF COMPONENTS:



Locate flow and pressure measurement valves to ensure manufacturer's recommended straight length of pipe upstream and downstream of valve is provided. Y11.4040 POSITIONING OF DOUBLE REGULATING VARIABLE ORIFICE VALVE: Install double regulating variable orifice valve to ensure equivalent of 10 diameters of straight pipe upstream and 5 diameters downstream of double regulating valve. Y11.4050# POSITIONING OF CONTROL COMPONENTS: • Install pipeline control components in accordance with manufacturer's instructions and in

positions indicated. • Insulation - Where control components are incorporated in insulated pipelines provide details

of insulation method proposed for approval. • Supports - Arrange supports for control components to ensure no strain is imposed on

components. • Access - Arrange control components to ensure adequate access for operation and

maintenance. Y11.4070 VALVE STUFFING BOXES: Adjust glands of all stuffing boxes at normal plant operating temperature and pressure in accordance with manufacturer's instructions. Ensure that valve action is not impaired by over tightening. Y11.4080A DISCHARGE CONNECTIONS, SAFETY VALVES: Fit pipework connections, where indicated, to provide discharge connection to Safety and Relief valves terminating at a safe discharge point. Y11.4080B DISCHARGE CONNECTIONS, VENT COCKS: Fit pipework connections, where indicated, to provide discharge connection to vent cocks terminating 150mm above floor level. Y11.4080C DISCHARGE CONNECTIONS, AIR BOTTLES: Fit pipework connections, where indicated, to provide bleed connection from air bottles terminating with air cock or needle valve in a convenient position. Y11.4080D DISCHARGE CONNECTIONS, AUTOMATIC AIR VENTS: Fit pipework connections, where indicated, to provide discharge pipe to automatic air vents terminating over a suitable gully or drain line in a visible location. Y11.4090 EXPANSION DEVICES: Where expansion and contraction cannot be accommodated by selected route, provide pipework loops, as indicated. Limit total stress set up in material of pipe wall, taking into account components due to internal pressure, tension and bending to less than 69 MPa for steel pipelines and less than 51.5 MPa for copper pipe lines. Where location does not permit sufficient flexibility, provide proprietary devices, as indicated. Y11.4100 EXPANSION COMPENSATORS INSTALLATION: Provide anchors and guides to contain all movement and resist maximum loads imposed. Install expansion compensators strictly in accordance with manufacturer's instructions. Y11.4110 FLEXIBLE CONNECTIONS INSTALLATION: Fit rubber bellows as close to source of vibration as practicable. Ensure the pipe at other end of bellows is a fixed point. Install flexible connections strictly in accordance with manufacturer's instructions. Ensure flexible connections are tied when the plant is on vibration isolation mountings.

Y20 - PUMPS


Y20 PUMPS Y20.1000 GENERAL 1010 PUMPS: Provide pumps manufactured and tested in accordance with appropriate British Standard, in particular BS EN 809, BS EN 60335-2-41 and BS EN 60335-2-51 where applicable. 1020 PUMP SELECTION: Select pump at or near most efficient part of performance curve for duty required. 1030 SAFETY GUARDS: Fit safety guards around revolving parts on close coupled and belt drive pumps. 1040 PUMP TESTING: Ensure pumps comply with BS EN ISO 5198 and BS EN ISO 9906 as appropriate. Y20.2010A CENTRIFUGAL PUMP - HORIZONTALLY MOUNTED BELT DRIVEN: Configuration

Casing and motor side by side mounted on bedplate (beltdrive). Casing

Provide casing with drain connection fitted with plug. Provide threaded connections in accordance with BS 21 and BS EN 10226-1 for drains, vents, water jackets, cooling lines, etc.. Provide pump with split casing to allow access to the impeller for service and maintenance.

Impeller Ensure impellers are accurately machined and finished smooth, free from blowholes and other defects and designed to be in dynamic balance at all speeds. Provide open or semi-open type impellers for removal of sludge or other foreign material to prevent clogging. Fix impellers to shafts to ensure that they remain firm if direction of rotation is reversed. Indicate direction of rotation on pump casing.

Shaft Ensure shaft is of adequate diameter to withstand all imposed loading and has a critical speed when assembled with its impeller at least 10% above normal operating speed.

Material Casing - Cast iron to BS EN 1561. Impeller - Manufacturer's standard Shaft - Stainless steel to BS EN 10088. Seal Housing - Cast iron to BS EN 1561.

Bearings - Sealed-for-life. Glands and seals - Mechanical. Y20.2010C CENTRIFUGAL PUMP - CLOSE COUPLED: Configuration

Pump casing and motor mounted on a bedplate in line (close coupled). Casing

Provide casing with drain connection fitted with plug. Provide threaded connections in accordance with BS 21 and BS EN 10226-1 for drains, vents, water jackets, cooling lines, etc. Provide pump with split casing to allow access to the impeller for service and maintenance.


Y20 - PUMPS



Material Casing - Cast iron to BS EN 1561. Impeller - Manufacturer's standard. Shaft - Manufacturer's standard. Seal Housing - Cast iron to BS EN 1561.

Bearings - Sleeve. Glands and seals - Mechanical. Y20.2010D CENTRIFUGAL PUMP - DIRECT DRIVE IN-LINE: Configuration

Direct driven unit with pump body incorporating inlet and outlet connections in line, to allow pump to be mounted in pipework.

Casing Provide casing with drain connection fitted with plug. Provide threaded connections in accordance with BS 21 and BS EN 10226-1 for drains, vents, water jackets, cooling lines, etc. Provide pump with split casing to allow access to the impeller for service and maintenance.



Material Casing - Cast iron to BS EN 1561. Impeller - Manufacturer's standard. Shaft - Stainless steel to BS EN 10088. Seal Housing - Cast iron to BS EN 1561.

Bearings Sealed-for-life or pre-packed type requiring no maintenance (in-line pumps).

Glands and seals - Mechanical. Y20.2020A POSITIVE DISPLACEMENT PUMP - HELICAL: Material

Casing - Cast iron to BS EN 1561 or SG cast iron to BS EN 1563 and BS EN 1564. Seal Housing - Cast iron to BS EN 1561.

Bearings - Spherical roller. Glands - Mechanical. Y20.3020# MATCHING FLANGES: • Provide flanged pumps with matching flanges

• Flanges to BS EN 1092-1 PN • Flanges to BS EN 1092-2 PN • Flanges to BS EN 1092-3 PN • Flanges to BS EN 1092-4 PN

Y20.4010 GENERAL:

Y20 - PUMPS


Comply with manufacturer's recommendations for installation of pumps. For in-line pumps ensure that motor is positioned in accordance with manufacturer's requirements. Y20.4020 PIPELINE CONNECTIONS: Support pumps independently from connecting pipework to ensure no load is transmitted from pipework to pump casing on pump suction and discharge. Y20.4040 ALIGNMENT: Align pump to prevent undue restraint and thrust on interconnecting pipework. Align drives to prevent undue wear and restraint on pump shaft. For belt drives, align pulleys and tension belts to prevent undue wear and out of balance forces. Y20.4050 ACCESS: Locate pump within the system with adequate space around it for service and maintenance. Y20.4060 MAINTENANCE REQUIREMENTS FOR SEWAGE PUMPS: For ease of service and maintenance, install submersible sewage pumps on guide rails or with lifting cables. Fit pumps with automatic discharge connections, which locate on to permanent pipework at low level in chamber.

Y21 - WATER TANKS/CISTERNS


Y21 WATER TANKS/CISTERNS Y21.1000 GENERAL 1010 TANK DESIGN: Design and fabricate tanks/cisterns in accordance with British Standards. 1020 DOMESTIC STORAGE WATER CISTERNS: Ensure storage cisterns for domestic water purposes comply with the Water Supply (Water Fittings) Regulations 1999 and amendment. Y21.2020A SECTIONAL A1 GLASS FIBRE REINFORCED SECTIONAL TANK TO BS EN 13280: Class A1 - for potable water incorporating screened air inlet, vent pipe entry device for the cover, screened warning and overflow pipes and particle ingress limitation between a one-piece cistern or sectional tank, cover and fittings. Sectional tanks - External flanges. Y21.2020B SECTIONAL A2 GLASS FIBRE REINFORCED SECTIONAL TANK TO BS EN 13280: Class A2 - for potable water. Sectional tanks - External flanges. Y21.2020D SECTIONAL B WITH COVER GLASS FIBRE REINFORCED SECTIONAL TANK TO BS EN 13280: Class B - for cold non-potable water with cover. Sectional tanks - External flanges. Y21.2030A PREFABRICATED STEEL TANKS TO BS 417 GRADE A: Standard - BS 417-2; Grade A - Maximum working head of water 4.5m. Hand hole - Size and position as BS 417-2. Y21.2030B PREFABRICATED TANKS TO BS 417 GRADE B: Standard - BS 417-2; Grade B - Maximum working head of water 3.0m. Hand hole - Size and position as BS 417-2. Y21.3010# CONTENTS GAUGES: • Sight glass type. • Float level indicator

• Cat and mouse type. • Lever arm type with dial.

• Hydrostatic dial type. Y21.3020# EQUIPMENT: • Level alarms • Level switches • Electric heaters • Provide standing overflows • Provide warning pipes • Provide ball valve boxes Y21.4010 GENERAL: Store, handle and erect all in accordance with manufacturer's recommendations and relevant British Standards.

Y21 - WATER TANKS/CISTERNS


Make due allowance for valves, fittings, access, etc., to accommodate insulation and weathering where indicated. Y21.4020 PROTECTION AND CLEANING: Ensure adequate protection from damage and ingress of foreign matter to tanks and cisterns during storage, erection and commissioning. Thoroughly clean out all tanks and cisterns prior to site testing and commissioning. Y21.4030 INSPECTION AND ACCESS: Install tanks and cisterns to allow internal and external surfaces to be easily inspected and cleaned.

Y25 - CLEANING AND CHEMICAL TREATMENT


Y25 CLEANING AND CHEMICAL TREATMENT Y25.1000 GENERAL 1010 CONDITIONS FOR CLEANING AND CHEMICAL TREATMENT: Ensure treatment complies with statutory authority and health and safety regulations. Notify manufacturer's and suppliers of equipment of proposed system cleaning and chemical treatment processes. Establish if any manufacturer or supplier of equipment requires any particular cleaning and chemical treatment process due to size of waterways or materials used. All chemicals used are to be compatible with the metallurgy of the systems. 1015 METHOD STATEMENT: Provide a method statement covering the sequence of events, chemicals to be used etc. Statement to be provided at least two months prior to the start of any flushing and/or chemical cleaning works. Y25.2010 CLEANING AND CHEMICAL TREATMENT SPECIALIST: Use a specialist for analysis and for design, supply, installation and operation of any system cleaning and chemical treatment process. Y25.2020A MAINS WATER ANALYSIS: Obtain an analysis of mains water taken from site supply point. Check with local water authority to ensure analysis results are typical for site area and report variances for instruction; or submit a sample of water to water treatment specialist as appropriate. Carry out tests to establish total viable counts and Pseudomonas and sulphate reducing bacteria. Y25.2030A PRELIMINARY CHECKS: • Prior to carrying out cleaning or chemical treatment process, ensure that

• All foreign matter is removed. • Certified pressure tests have been carried out in the parts of the system to be cleaned.

Carry out further pressure tests on the isolated sections of the system independently. • All water used for pressure testing is inhibited. Leave remaining pipework sections full

after testing. • Where there is a risk of freezing inhibited mono-ethyleneglycol is used. • Circulation has been demonstrated and approval obtained on all parts of the system.

Manipulate and leave fully open all valves other than those used to isolate sections. Carry out balancing and certification after the flushing, cleaning and passivation operations.

• No damage can occur to any item of plant or equipment due to cleaning and chemical processes.

• Chemicals used are compatible with system materials. • All items of plant and equipment subject to damage or blockage due to cleaning and

chemical treatment processes are isolated or removed. • Permanent or temporary by-passes are provided as indicated on drawings. • Dirt pockets are installed at low points to facilitate solids removal. Supply dirt pockets with

drain valves sized to pipework size. • All drains provided have been tested and approved and that any pumping equipment

associated with the drainage system is fully commissioned. • Dead legs, that are more than 3 pipe diameters in length are looped to allow effective

cleaning. • Strainer baskets and filter media, incorporated within systems, are removed; and where

necessary spool or stool pieces are installed. • Temporary strainers and filters are installed as required for removal of solids during

cleaning and chemical treatment processes.



• Strainers are clean prior to the start of the cleaning process, throughout the cleaning and on completion.

• Suitable supply and drainage points are provided with 50mm minimum connections, properly sited and installed, either valved or plugged.

• All automatic/manual air vents are fully commissioned. • All requirements of COSHH regulations are complied with during the chemical cleaning

and chemical treatment of the system. • Where required by local water authority, provide effluent tanks for storage of all waste

products of cleaning and chemical treatment processes. • Following local water authority approval, either neutralize and dispose to drain of all

waste products; or ensure authorised disposal at registered sites. • Comply with Waste Management Duty of Care: A Code of Practice and The Hazardous

Waste (England & Wales) Regulations 2005 where appropriate. Y25.2040A PROCEDURAL PRECAUTIONS FOR CLEANING AND CHEMICAL TREATMENT: • Carry out tests to ensure that cleaning and chemical treatment processes are operating as

required. • Carry out tests to ensure that cleaning and chemical treatment processes are operating as

required. and detailed in the Method Statement. • Submit all test and sample results for certification and approval. Y25.2040B PROCEDURAL PRECAUTIONS FOR CLEANING AND CHEMICAL TREATMENT INCLUDING TAKING SAMPLES: • Take samples during and following chemical treatment and/or cleaning. • Submit samples to an independent analyst. • Use sterile containers to take samples. • Carry out tests to ensure that cleaning and chemical treatment processes are operating as

required. • Submit all test and sample results for certification and approval. • Ensure all samples are witnessed. Y25.2060A CHEMICAL INJECTION AND DOSING METHODS FOR CLOSED SYSTEMS: Method of introducing chemicals Dosing pots; manually initiated timer controlled dosing; or proportional dosing as appropriate. Y25.2060B CHEMICAL CLEANING AND DOSING METHODS FOR OPEN RECIRCULATING SYSTEMS: Method of introducing chemicals Chemical dosing for scale and corrosion inhibitors Continuous; timer controller; or proportional dosing as appropriate. Bleed-off control. Biocide dosing - automatic dosing control. Y25.2060C PACKAGED CHEMICAL INJECTION AND DOSING PLANT: Provide packaged monitoring and treatment plants. Y25.2060D DOSING - CLOSED SYSTEMS: Chemical feed

Provide feeder (dosing pots) with a tundish for filling; separate air vent with discharge tube; drain and isolating valves.

Install in each water system a means of taking a sample as follows:- Chilled water systems - provide a gate valve and discharge. Heating systems - provide a sample cooler with a copper coil and cooling jacket with cooling water valve and drained to waste.



Y25.2060E DOSING - OPEN SYSTEMS: Chemical dosing

Provide an interface between water treatment plant and system pumps to allow the initiation of water circulation in addition to the requirements of the building services. Where control by-passes are used, set valves to allow reduced circulation but not complete isolation of the equipment. Provide control of chemical inhibitors by linking the dosing pump control unit to operate on a signal from a water meter. Provide skid mounted packaged equipment to feed chemical inhibitors including pre-wired controls and dosing pump, high density polyethylene tank, chemical diaphragm pump complete with all necessary valves and tubing.

Provide control of total dissolved solids by linking a solenoid purge valve to operate by a signal automatically received from a conductivity sensor.

Biocide dosing Provide skid mounted packaged equipment to feed two types of biocides on an automatically alternating basis including pre-wired timer controls and twin biocide diaphragm pumps complete with all necessary valves and tubing. Draw biocide chemical direct from the chemical supply drums located on the skid.

Control Provide low level alarms for all dosing units. Provide BMS connections to monitor dosing and show run and alarm conditions.

Injection manifold Provide an injection manifold for use with the above water treatment equipment. Connect the manifold across flow and return pipework and mount above the dosing plant modules, unless otherwise indicated. Y25.2065 CHEMICALS - DOSING: Provide biocides effective against Legionella Pnueumophilia, algae, fungi, moulds and slime forming bacteria including pseudomonas and sulphate reducing bacteria. Supply biocides as recommended by water treatment specialist. Incorporate a bio dispersant in the programme to break up and disperse any slime masses, where required. The water treatment specialist shall select the appropriate corrosion inhibitors, to minimise corrosion, and biocides to prevent any proliferation to mild steel, copper and copper alloys. Provide a specific inhibitor to protect aluminium when it is present in the system. The cleaning agent is to be specified by the water treatment specialist. Y25.2070A MONITORING: • Remote location Provide monitoring system to enable on-line analyses, system alarms and chemical stock levels to be monitored by water treatment specialist. Where indicated, provide facility for system to be monitored by water treatment specialist at remote location. Y25.2070B SAMPLING: Provide testing equipment to carry out tests for all inhibitors used in treatment programme indicated. Y25.2070C SAMPLING KITS: Provide the following test kits as appropriate. Boiler water test kit for steam boilers; conductivity test kit; pH test kit; inhibitor test kit; hardness test kit where a softener is installed; chloride level test kit. Install a corrosion test rig to enable corrosion rates to be monitored using corrosion coupons. Bacteriological monitoring with use of dipslides.



Log sheets for recording of test results, bacteriological analysis and any actions required or taken. Y25.2080A CHEMICAL PROVISION, STANDARD ARRANGEMENT: Provide consumables for a period of 12 months. Where indicated, provide for supply of chemicals from containers refilled by drumless delivery system. Include for supply of chemicals for all systems using the basis of: Open circuit systems operating at 100 % load for 2080 hours per annum. Closed circuit systems make-up 1% system volume/month. Y25.2090 AVOIDANCE OF STAGNANT WATER IN PRESSURISATION UNIT EXPANSION VESSELS: Install pressurisation units with re-circulating circuits, to avoid stationary pockets of water and minimise bacterial growth. Y25.3010A FLUSHING: • System filling

• Temporary connection from mains in compliance with the Water Supply (Water Fittings) Regulations 1999, and the Water Supply (Water Fittings) (Amendment) Regulations 1999.

• Temporary connection from fire hydrant pipework. • By installation of temporary tank and pump arrangement.

Carry out flushing of water systems in accordance with BSRIA Application Guide 1/01 Pre-commission cleaning of pipework systems. Section 2 Installation considerations

2.1 Management 2.2 Pipework installation 2.3 Preparation for flushing and cleaning 2.4 Procedure for filling, pressure testing and static flushing.

Section 3 System dynamic flushing. C1 Flushing objectives C2 Dynamic flushing procedure.

Inspection and witnessing, as section 1.4. Y25.3010B FLUSHING: All water used for pressure testing, flushing and system filling is of good quality. Leave remaining pipework sections full and treated after pressure testing. Install all necessary pipework ancillaries to enable a specialist to carry out flushing, inspection and witnessing of water systems in accordance with BSRIA Application Guide AG 1/01. Pre-commission cleaning of pipework systems. Temporary connection from the mains must be in compliance with the Water Supply (Water Fittings) Regulations 1999 and amendment, or by installation of a temporary tank and pump arrangement. Domestic water systems are to be flushed and disinfected in accordance with the requirements of BS 6700, and to the satisfaction of the local water supply authority. Flush systems using mains water until the water is clear. Y25.3020A TESTING AND PURGING GAS PIPEWORK - INDUSTRIAL AND COMMERCIAL INSTALLATIONS: Comply with IGE/UP/1 Strength and tightness testing and direct purging of industrial and commercial gas installations. Y25.3020B TESTING AND PURGING GAS PIPEWORK - SMALL LOW PRESSURE INDUSTRIAL AND COMMERCIAL INSTALLATIONS: Comply with IGE/UP/1A Strength and tightness testing and direct purging of small low pressure industrial and commercial natural gas installations.



Y25.3020C TESTING GAS PIPEWORK TO BS EN 12327: • Purge each system using nitrogen or carbon dioxide

• This operation is to prove the continuity of the pipework, remove any cutting fluid and ensure that the nozzles are clear.

• Flimsy paper bags are to be attached to all nozzles during the purge and removed upon completion of the purge.

Y25.3030A CHEMICAL CLEANING AND SOLIDS REMOVAL - INHIBITED ACID: Carry out chemical cleaning procedure in accordance with BSRIA Application Guide 1/01 Pre-commission cleaning of pipework systems.

4.1 Introduction. 4.2 Cleaning options.

4.2.1 Degreasing. 4.2.2 Biocide wash. 4.2.3 Removal of surface oxides - Inhibited acid cleaning. 4.2.4 Effluent disposal/final flushing. 4.2.5 Neutralisation. 4.2.6 Passivation 4.2.7 Corrosion inhibitor/biocide dosing. 4.2.8 Treatment up to system handover.

4.3 On-going water treatment. Inspection and witnessing, as section 1.4. Y25.3030B CHEMICAL CLEANING AND SOLIDS REMOVAL - FORMULATED PRODUCTS: Carry out chemical cleaning procedure in accordance with BSRIA Application Guide 1/01 Pre-commission cleaning of pipework systems.

4.1 Introduction. 4.2 Cleaning options.

4.2.1 Degreasing. 4.2.2 Biocide wash. 4.2.3 Removal of surface oxides - Inhibited acid cleaning. 4.2.4 Effluent disposal/final flushing. 4.2.5 Neutralisation. 4.2.6 Passivation 4.2.7 Corrosion inhibitor/biocide dosing. 4.2.8 Treatment up to system handover.

4.3 On-going water treatment. Inspection and witnessing, as section 1.4. Y25.3035# CLEANING AND CHEMICAL TREATMENT REGIME: The specialist shall submit a method statement prior to commencing work which fully prescribes the proposed regime and sequence for the flushing, cleaning and chemical treatment of all closed and condenser water systems. The following shall be considered in preparation of the method statement: • Delay filling the pipework for the first time for as long as possible. • If any pipework is to be wet for more than 2 weeks prior to cleaning, treat the fill water with

biocide and bio-dispersant. • Take samples for microbiological analysis 1 week prior to commencing the water treatment. • If sample results are poor, undertake a biocide wash on all previously wetted areas after the

initial flush. Biocide treated water should be drawn into any previously wetted terminal unit coils slowly (which have been isolated for the clean) to avoid the introduction of debris, after which the coils should be isolated again.



• During the initial flush flows should be maximised, recorded and witnessed. Batch work on terminal unit by-passes should be carefully undertaken in accordance with BSRIA Application Guide AG 1/01, and the correct number of terminal unit by-passes opened at any one time in order to maximise flow along the horizontal runs.

• Chemical clean. • Second dynamic flush using the same methodology as the initial flush. • Dose with biocide and inhibitor. • Circulate systems fully. • Back flush all terminal units. • Top up inhibitor as necessary and add another dose of biocide (use a biocide with longevity

and broad spectrum base). Y25.3040 STERILIZATION - GENERAL: After flushing process, carry out sterilization in accordance with BS 6700. Prior to sterilization ensure each system is flushed, cleaned and drained. Provide temporary connections to system terminal points suitable for introduction of sterilization chemicals and fluids and 22mm minimum valved drain connection on incoming main immediately downstream of mains isolating valve. Fill system with clean, fresh water. Y25.3050 STERILIZATION - MAINS WATER SYSTEM: • System standing time Carry out the following operations in accordance with BS 6700. Flush system and introduce sterilisation chemical. Take samples from all sentinel points to ensure correct chlorine concentration. Leave system to stand for period of time indicated. Repeatedly flush system with clean water until all traces of chlorine have been removed - leave system filled. Submit samples to registered laboratory for microbiological analysis and report. Certificate of conformity Immediately prior to handover, retake samples and submit for analysis and report. Where necessary repeat sterilisation of potable water system immediately prior to handover. Y25.3060 STERILIZATION - WATER STORAGE SYSTEMS: Carry out the following operations in accordance with BS 6700 and HSE L8 Legionnaires' disease - control of legionella bacteria in water systems ACOP and guidance. Carry out operations on all water storage tanks and cisterns, cold and hot. Carry out procedures as for mains water systems. Y25.3070 WATER TREATMENT FOR STEAM BOILERS: Provide water treatment for steam boiler plant in accordance with BS 2486. Ensure water treatment plant changes the area raw water characteristics to those recommended within BS 2486 for boiler plant installed. Y25.3080 SERVICE VISITS: Provide monthly service visits for one full year by a fully qualified chemist, to carry out the following:-

• Review water analysis records, correspondence and reports since previous visit. • Test water samples on site for hardness; all inhibitors; dissolved solids; pH; total

alkalinity. • Check performance of feeding equipment, softeners, and testing equipment on site. • Submit a written report. • Carry out micro-biological analysis using dipslides.

Special requirements as indicated.



Y25.3090 DOCUMENTATION: Provide number of copies as indicated of hard cover binders containing details of Programme outlines. Purpose of chemical treatment. Chemicals used and quantity. On site testing procedures. Control limits of tests. Equipment data and drawings. Product notes and material safety data sheets for all chemicals used. Provide a complete training programme for site operatives covering Methods of basic water testing. Explanation of results obtained. Actions to be taken on test results.

Y51 - TESTING AND COMMISSIONING


Y51 TESTING AND COMMISSIONING Y51.1000 GENERAL Y51.2010 PRESSURE TESTING - GENERAL: Comply with procedures given in HVCA TR/6 Guide to Good Practice for Site Pressure Testing of Pipework. Ensure safety precautions detailed in HSE Guidance Note GS4 Safety in Pressure Testing are adopted. Provide a blanked connection to accommodate a check gauge in addition to the accurate gauge fitted to section under test. Test concealed or buried pipework before any permanent covering is applied. Advise appropriate personnel, in advance, of the time pressure tests may be witnessed. Y51.2020 PRESSURE TESTING - WATER CIRCULATING AND SUPPLY SYSTEMS AND STEAM AND CONDENSE LINES: Carry out Hydraulic Pressure Testing as described in HVCA TR/6 Guide to good Practice for Site Pressure Testing of Pipework. Test section by section for one hour, as the work proceeds and prior to application of thermal insulation as follows Operating gauge pressure less than 3.5 bar, test gauge one and a half times operating pressure. Operating gauge pressure 3.5 - 7.0 bar, test gauge pressure twice operating pressure. Operating gauge pressure greater than 7.0 bar, test gauge pressure 14.0 bar or one and a half times operating pressure, whichever is the greater. Y51.2040 PRESSURE TESTING - WATER MAINS: Test to Local Authority requirements. Ensure the provisions laid down in HVCA TR/6 Guide to Good Practice for Site Pressure Testing of Pipework for testing underground CWS mains are carried out. Y51.2050 PRESSURE TESTING - FIRE RISERS: Test hydraulically to a pressure of 10 bar (gauge) measured at the top outlet to maintain pressure for not less than 15 minutes. Demonstrate to Fire Brigade when tests are satisfactory. Carry out flow tests after satisfactory pressure testing. Y51.2055A PRESSURE TESTING - REFRIGERANT PIPEWORK, STRENGTH PRESSURE TEST: Test refrigerant pipework using the strength test procedure as detailed in Clause R6.4 of the CIBSE Commissioning Code R: 2002. Y51.2055B PRESSURE TESTING - REFRIGERANT PIPEWORK, LEAK TEST: Test refrigerant pipework using the leak test procedure as detailed in Clause R6.5 of the CIBSE Commissioning Code R: 2002. Y51.2055C PRESSURE TESTING - REFRIGERANT PIPEWORK, DEEP VACUUM TEST: Test refrigerant pipework using the deep vacuum test method as detailed in Clause R6.6 of the CIBSE Commissioning Code R: 2002. Y51.2065 PRESSURE TESTING - OIL PIPEWORK TO BS 5410: Test oil pipework in accordance with BS 5410-2, Section 39. Y51.2080 PRESSURE TESTING - SOIL, WASTE, VENTILATION, ANTI-SYPHON AND RAINWATER PIPEWORK: Test section by section as the work proceeds and subsequently on completion with all sanitary fittings fixed and working. Submit systems to two separate tests, Air test and Hydraulic Performance test in accordance with BS EN 12056-2. Y51.2090 PRESSURE TESTING - UNDERSLAB DRAINAGE:



Test section by section as the work proceeds and subsequently after completion of backfilling and compaction to the satisfaction of the Bank and the local Authority. Individually test sections which will be permanently embedded in the structure or concealed in ducts or voids. Submit sections to two separate tests Water Test and Test for Straightness and Obstruction in accordance with BS EN 752. Y51.2100 VACUUM TESTING: Test vacuum mains in accordance with HVCA TR/6 Guide to Good Practice for Site Pressure Testing of Pipework, Table 1. Y51.3020 COMMISSIONING CODES: Carry out commissioning of installations in accordance with the procedures, checks and tolerances given in the BSRIA Application Guides for water systems and air systems to achieve the standards set in the CIBSE Commissioning Codes. Y51.3030A COMMISSIONING WATER DISTRIBUTION SYSTEMS INCLUDING BSRIA PRE-COMMISSIONING CHECKLIST: Preliminary checks Carry out checks and procedures as detailed in CIBSE Commissioning Code W, Section W1. Ensure system is statically complete as defined in section B4 of BSRIA Application Guide 2/89 Commissioning of water systems in buildings. Use pre-commissioning checklist from BSRIA Application guide 2/89. Setting to work and regulation Set to work and regulate water distribution systems in accordance with CIBSE Commissioning Code W, Sections W2 and W3, and sections C3 and C4 in BSRIA Application Guide 2/89. Measurement Use instruments for measurement detailed in BSRIA Application Guide 2/89. Y51.3040A COMMISSIONING AIR DISTRIBUTION SYSTEMS INCLUDING BSRIA PRE-COMMISSIONING CHECKLIST: Preliminary checks Carry out checks and procedures as detailed in BSRIA Application Guide 3/89 Commissioning of air systems in buildings. Use pre-commissioning checklist in BSRIA Application guide 3/89. Setting to work and regulation Set to work and regulate air distribution systems in accordance with CIBSE Commissioning Code A, Section A2, and sections C3, C4 and C5 in BSRIA Application Guide 3/89. Measurement of air flow Use instruments for measurement and methods of measurement detailed in BSRIA Application Guide 3/89 and CIBSE commissioning guide, section A3. Y51.3040B COMMISSIONING VAV AIR DISTRIBUTION SYSTEMS INCLUDING BSRIA PRE-COMMISSIONING CHECKLIST: Preliminary checks Carry out checks and procedures as detailed in CIBSE Commissioning Code A, Section A1. Ensure system is statically complete as defined in section B4 of BSRIA Application Guide 3/89 Commissioning of air systems in buildings. Use pre-commissioning checklist in BSRIA Application guide 3/89. Setting to work and regulation Set to work and regulate air distribution systems in accordance with CIBSE Commissioning Code A, Section A2, and sections C3, C4 and C5 in BSRIA Application Guide 3/89. For regulation of Variable Air Volume Systems follow routine in BSRIA Application Guide 1/91 The Commissioning of VAV Systems. Measurement of air flow



Use instruments for measurement and methods of measurement detailed in BSRIA Application Guide 3/89 and CIBSE commissioning guide, section A3. Y51.3060 COMMISSIONING REFRIGERATING SYSTEMS: Follow the procedures given for use and handling of refrigerants, pressure and leak testing, evacuation and dehydration, charging and lubrication of refrigerating systems in CIBSE Commissioning Code R and manufacturer's instructions. Pre-commissioning:

Carry out the procedures for pre-commissioning detailed in CIBSE Commissioning Code R, Section R5.

Combined pressure and leak testing: Carry out the procedures for combined pressure and leak testing, including refrigerant charging, detailed in CIBSE Commissioning Code R, Section R6.

Setting to work and adjusting Carry out the procedures for setting to work and adjusting detailed in CIBSE Commissioning Code R7.

Absorption Systems. Carry out the procedures for Preliminary Checks, Testing and Charging, and Setting to Work and adjusting detailed in CIBSE Commissioning Code R, Section R10. Apparatus and Instruments Use Apparatus and Instruments detailed in CIBSE Commissioning Code R, Section R8. Apply tolerances defined in Section R8.6. Y51.3070 COMMISSIONING AUTOMATIC CONTROL SYSTEMS: Carry out commissioning of Automatic Control Systems in accordance with Manual prepared by the controls equipment manufacturer. Carry out the Checking and Setting-Up procedure detailed in the CIBSE Commissioning Code C, Section C1. Measurement

Carry out measurements in accordance with CIBSE Commissioning Code C, Appendix C2.1. Y51.3090A INSTRUMENTS AND GAUGES: Ensure instruments are correctly calibrated. Record details of instruments on record sheets. Submit evidence of correct calibration of instruments to be used in connection with commissioning and testing. Y51.3100A AIR SYSTEMS COMMISSIONING RECORDS TO BSRIA AG 3/89.3: Keep a systematic record of commissioning results and distribute as indicated. For air systems

Use record sheets as described in BSRIA Application Guide 3/89.3 Commissioning air systems in buildings.

Y51.3100B WATER SYSTEMS COMMISSIONING RECORDS TO BSRIA AG 2/89.3: Keep a systematic record of commissioning results and distribute as indicated. For water systems

Use record sheets as detailed in BSRIA Application Guide 2/89.3 Commissioning water systems in buildings.

Y51.3110 BMS COMMISSIONING - CONTROL SYSTEM SPECIFICATION DETAILS REQUIRED FOR COMMISSIONING: Ensure that the following information is supplied to the Bank: A network schematic providing a record of the overall control system architecture. Schematics of the systems to be controlled indicating the location of sensors and actuators. A written description of the configured control strategies. Control strategy logic diagrams in the form of logic flow charts. Set-points and other control settings such as initial default parameters for control loops relating to the control strategies.



Criteria relating to control accuracy and stability. A points list including digital inputs/outputs and analogue inputs/outputs. Control panel drawings. BMS operator workstation graphics and associated point data displaying monitored conditions. Trend logging archiving requirements and alarm routing. The scope of operational and specified functionality of management software, e.g. utility monitoring and targeting software. Functional requirements of any occupant interfaces. Details of any hard-wired interfaces from, or to, other control devices. Functionality and scope of data to be transferred over any gateway for use as part of an integrated system. Functional profiles for any direct interoperability integration. Ensure that the following is included in the BMS commissioning specification:- A clear description of the division of responsibility between the various parties. Off-site and on-site pre-commissioning procedures. On-site commissioning procedures. Requirements for assistance to air and water balancing testing (eg opening and closing control valves) and other plant tests where the controls need to be overridden. A requirement for any point-by-point verification of correct operation. Requirements for evaluation of control loop performance/loop tuning. Requirements for the BMS operator workstation for assistance in the commissioning of plant. Arrangement for the management of delays. Phased completion requirements. Requirements for demonstration/witness testing on the basis of a percentage of points or on a point-by-point basis. Ensure that the witnessing requirement includes the identification of those responsible. Requirement for software/configuration data back-up. Requirement for, and involvement in, any complete system and sub-system performance testing. Requirement for system documentation. Requirement for operator training requirements. Requirement for post occupancy checks. Y51.3120 BMS COMMISSIONING - PRE-COMMISSIONING: Ensure that as much pre-commissioning work as possible is performed off-site: Ensure that the following is followed: Table 15 Pre-commissioning requirements Pre-commissioning action Pre-commissioning off-site Control application software

Yes (final commissioning on-site)

User interface software Yes (final commissioning on-site)

Control panels Yes (final commissioning on-site)

Terminal units (fan coil units, etc)

Yes (final commissioning on-site)

Wiring No Communications network No Sensors No Actuators No Integration gateways Partial Ensure that a record of all settings, set-points and offsets are maintained throughout the pre-commissioning period.



Ensure that all final physical adjustments to the field devices are indelibly marked. Ensure that all packaged plant interfaced with the BMS is fully tested and commissioned by the manufacturer or installer. Ensure that the BMS is pre-commissioned in accordance with the following requirements of CIBSE Code C (Commissioning of automatic control systems). Table 16 CIBSE Code C automatic control systems pre-commissioning requirements

Pre-commissioning action CIBSE Code C section reference

Control applications software C5.2 Control panels C5.3 Wiring C5.4 Communications networks C5.5 Sensors C5.6 Actuators and valves C5.7 Digital inputs/outputs C5.8 Pneumatic actuation with microprocessor control C5.9

Field control devices C5.10 Y51.3130A BMS COMMISSIONING - PLANT READY FOR CONTROL SYSTEM COMMISSIONING: Confirm that the following plant commissioning has been performed before commencing the final BMS commissioning: Water systems The system is cleaned and flushed to remove any debris. All regulating, isolating and control valves in place and operating correctly. That all flow measuring devices are in place and in the correct location for accurate measurement (including pressure tappings). The system is vented. That the proportional balancing is completed to obtain the branch flow rates in the correct ratio to each other (or through the use of and setting of self-balancing valves). That the pump flow rate has been adjusted to provide the specified flow rate. Air systems Debris has been removed from the air distribution system. That dampers are in the correct location and fully functional. That fire/smoke dampers open. Test holes have been drilled and sealed with removable plugs. That in-situ flow measuring devices have been installed. Ductwork air leakage testing has been performed (if specified). Completion of proportional balancing of regulating dampers so that terminals share the air flow in the correct proportions. Regulation of the fan(s) to provide the specified flow rate. Packaged equipment Ensure that plant and controls have been fully commissioned and are functional, ready for integration with other plant/systems. That control equipment inputs/outputs are in the specified format for connection to the main control system. Confirm that the plant is commissioned in accordance with: Air distribution systems, CIBSE Code A Boiler plant, CIBSE Code B Refrigeration systems, CIBSE Code R Water distribution systems, CIBSE Code W Commissioning water systems. Application principles, AG 89.3/2, BSRIA



Commissioning air systems. Application systems for buildings, AG 89.3/3, BSRIA. Y51.3140 BMS COMMISSIONING - CONTROL SYSTEM REQUIREMENTS FOR PLANT COMMISSIONING: Ensure that the BMS is pre-commissioned to allow the building services plant to operate under "manual" running conditions. Ensure that the control valves can be manually set in their fully open position to allow the balancing of pipework flows. Ensure that dampers can be manually opened to allow the commissioning of air systems. Y51.3150 BMS COMMISSIONING: Ensure that the BMS is commissioned in accordance with the following requirements of CIBSE Code C (Commissioning of automatic control systems). Control strategy checking - C6.2 Checking procedures for basic control functions - C6.3 Lighting controls - C6.4 Operator workstations - C6.5 Occupant interfaces - C6.6 Communication networks - C6.7 Integrated systems - gateways - C6.8 Integrated systems - direct interoperability - C6.9 Integration with fire detection systems - C6.10 Security systems - C6.11 Interruption of electrical power supplies - C6.12 Valves - C7.1 Dampers - C7.2 Fans - single speed - C7.3 Fans - variable speed - C7.4 Pumps - C7.5 Y51.3160 COMMISSIONING MANAGEMENT:

• Ensuring that regularly scheduled meetings of the entire commissioning team are held for the purpose of site coordination.

• Providing the commissioning authority with a copy (hard and soft) of all material submittals, shop

drawing revisions, operation and maintenance documentations and systems manual. • Ensuring that commissioning plan is being followed by all concerned subcontractors and that a

copy of all test forms is being delivered to the commissioning authority.

Y51.3170 COMMISSIONING PLAN: The contractor should follow the commissioning plan and procedures on site, in particularly he should:

• Submit a copy of all shop drawing revisions, operation and maintenance documents, system manuals, on‐site testing forms signed by all concerned parties, technical data for all equipment and material submittals etc.

• Bring his commissioning team whenever required on site. • Attend regular commissioning meetings as per commissioning plan requirements. • Provide videotaped training sessions at the end of the project for operations personnel

(Certificate of attendance will be given, and some trainings will be verified by the commissioning authority).

• The contractor shall provide all necessary testing equipment, and should conduct tests under the supervision of the commissioning authority; these tests (or part of them) will be repeated after



10 months of substantial completion in order to review building’s operation and maintenance after final acceptance. The content of any related section is to be revised accordingly.

Y51.3180 TRAINING:

• The mechanical contractor shall provide training for maintenance and operational personnel.

• The training program shall be detailed such that it can be repeated for new and replacement personnel.

• Thorough documentation must be supplied for future training activities. • The training program shall furnish a thorough understanding of all equipment,

components, systems, and their operation, including appropriate how‐to skills. • Certifications of attendance to be given in each training session, and training sessions should be

videotaped.

Y51.4010 SYSTEM PERFORMANCE TESTING: Demonstrate the performance of installations including single, standby, multi-duty plants and systems, and of plants specified for future use. Y51.4015 TESTING OF RESIDENTIAL VENTILATION SYSTEMS: Demonstrate the performance of residential ventilation systems through performance testing and installation checks in accordance with BS EN 14134. Y51.4020A ENVIRONMENTAL TESTS, ARTIFICIAL LOADS: Carry out environmental testing to prove the performance of the systems. Apply artificial loads or provide test arrangements to simulate the full range of operating conditions and duties. Y51.4020B ENVIRONMENTAL TESTS, AMBIENT AIR QUALITY Carry out environmental testing to prove the performance of the systems. Carry out ambient air quality tests in accordance with BS EN 13528-1, BS EN 13528-2 and BS EN 13528-3. Y51.4030 RECORDERS: • Seven day space temperature recorders

• Number • For (weeks)

• Relative humidity recorders • Number • For (weeks)

Provide and maintain on free loan portable seven day space temperature and relative humidity recorders, as indicated, together with adequate charts.

Y52 - VIBRATION ISOLATION MOUNTINGS


Y52 VIBRATION ISOLATION MOUNTINGS Y52.1000 GENERAL 1010 DESIGN INTENT: Supply equipment indicated to ensure that vibration from equipment is not transmitted to building, other supporting structure, pipework or ductwork. 1020 SPRING ANTI VIBRATION MOUNTINGS: Select spring mounts with an overload capacity of 50%, for metal springs the outside diameter should be at least 75% of operating height. Permanently identify individual mounts with their load capacity. 1030 SPRING HANGERS: Provide spring hangers that allow the lower hanger rod to move laterally at least 15o. 1040 Where indicated, provide lockable levelling device. Y52.1040 LOCKING FACILITY: Where indicated, provide lockable levelling device. Y52.2010A SYNTHETIC MATERIAL CONFIGURED MAT MOUNTINGS: Provide configured mat mountings manufactured from neoprene or composite fibre/synthetic rubber. Where mats are stacked, bond 1mm steel sheet thickness between each pad without filling voids. Y52.2010B NATURAL RUBBER CONFIGURED MAT MOUNTINGS: Provide configured mat mountings manufactured from natural rubber. Where mats are stacked, bond 1mm steel sheet thickness between each pad without filling voids. Y52.2010C HIGH TEMPERATURE CONFIGURED MAT MOUNTINGS: Provide configured mat mountings manufactured from high temperature synthetic rubber. Where mats are stacked, bond 1mm steel sheet thickness between each pad without filling voids. Y52.2010D RESILIENT MAT MOUNTINGS: Provide a minimum of 20mm resilient mat and sheet of 1.6 mm steel for incorporation in cast in situ base. Y52.2010E PAD MOUNTINGS: Provide pad mountings manufactured from composite synthetic rubber. Y52.2020A SYNTHETIC RUBBER TURRET COMPRESSION MOUNTINGS: • 1040 LOCKING FACILITY:

Where indicated, provide lockable levelling device. Provide turret compression mountings fabricated from synthetic rubber between two steel plates. Protect the metal from corrosion by painting and fix friction pads to top and bottom. Provide bolt holes to allow fixing. Y52.2020B NEOPRENE TURRET COMPRESSION MOUNTINGS: • 1040 LOCKING FACILITY:

Where indicated, provide lockable levelling device. Provide turret compression mountings fabricated from neoprene between two steel plates. Protect the metal from corrosion by painting and fix friction pads to top and bottom. Provide bolt holes to allow fixing.



Y52.2030 SPRING COMPRESSION MOUNTINGS: • 1040 LOCKING FACILITY:

Where indicated, provide lockable levelling device. Provide spring compression mountings comprising high strength low stress helical spring capped with steel pressure plate, on resilient base pad, mounted on pre-drilled base for bolting down, and enclosed with cap. Protect metal from corrosion. Y52.2040 CAPTIVE SPRING MOUNTINGS: Provide captive spring mountings comprising high strength low stress helical spring designed to achieve horizontal and vertical snubbing. Mount spring on pre-drilled base plate for bolting down and protect against corrosion. Supply complete with levelling screw. Y52.2050A SYNTHETIC RUBBER HANGERS, TURRET COMPRESSION: • 1040 LOCKING FACILITY:

Where indicated, provide lockable levelling device. Provide turret compression hangers fabricated from synthetic rubber incorporated with hanger box. Construct hanger box from steel (minimum thickness 1.6mm) complete with hole for suspension rod and enlarged lower hole for drop rod to equipment. Y52.2050B NEOPRENE HANGERS, TURRET COMPRESSION: • 1040 LOCKING FACILITY:

Where indicated, provide lockable levelling device. Provide turret compression hangers fabricated from neoprene incorporated within hanger box. Construct hanger box from steel (minimum thickness 1.6mm) complete with hole for suspension rod and enlarged lower hole for drop rod to equipment. Y52.2060 SPRING COMPRESSION HANGERS: • 1040 LOCKING FACILITY:

Where indicated, provide lockable levelling device. Provide spring compression hangers comprising high strength low stress helical spring capped with steel pressure plate, on resilient base pad, mounted within hanger box. Construct hanger box from steel (minimum thickness 1.6mm) complete with hole for suspension rod and enlarged lower hole for drop rod to equipment. Y52.2070A SYNTHETIC RUBBER HANGERS, COMBINED TURRET/SPRING COMPRESSION: • 1040 LOCKING FACILITY:

Where indicated, provide lockable levelling device. Provide turret/spring compression hangers with turret fabricated from synthetic rubber and high strength low stress helical spring capped with steel pressure plate, on resilient base pad, incorporated within hanger box. Construct hanger box from steel (minimum thickness 1.6mm) complete with hole for suspension rod and enlarged lower hole for drop rod to equipment. Y52.2070B NEOPRENE HANGERS, COMBINED TURRET/SPRING COMPRESSION: • 1040 LOCKING FACILITY:

Where indicated, provide lockable levelling device. Provide turret/spring compression hangers with turret fabricated from neoprene and high strength low stress helical spring capped with steel pressure plate, on resilient base pad, incorporated within hanger box. Construct hanger box from steel (minimum thickness 1.6mm) complete with hole for suspension rod and enlarged lower hole for drop rod to equipment.



Y52.2080 HORIZONTALLY RESTRAINED SPRING MOUNTINGS: Provide horizontally restrained spring mountings comprising high strength low stress helical spring capped with steel pressure plate, on resilient base pad, mounted within hanger box. Construct hanger box from steel (minimum thickness 1.6mm) complete with holes for installing across connection. In addition supply synthetic rubber or neoprene snubber as a horizontal buffer. Y52.2090# INERTIA BASES: Construction • Provide purpose built inertia bases constructed using welded steel frame formwork containing

concrete reinforced with 12mm minimum diameter bars at 100mm maximum centres, 35mm above the bottom of the base; and mounted on spring compression mountings.

• Provide purpose built inertia bases constructed using welded steel frame mounted on spring compression mountings.

Y52.2090A CONCRETE/STEEL FORMWORK INERTIA BASES: • 1040 LOCKING FACILITY:

Where indicated, provide lockable levelling device. Provide purpose built inertia bases constructed using welded steel frame formwork containing concrete reinforced with 12mm minimum diameter bars at 100mm maximum centres, 35mm above the bottom of the base; and mounted on spring compression mountings. Y52.2090B WELDED STEEL FRAME INERTIA BASES: • 1040 LOCKING FACILITY:

Where indicated, provide lockable levelling device. Provide purpose built inertia bases constructed using welded steel frame mounted on spring compression mountings. Y52.2100 VIBRATION ISOLATION HOSES: Provide flexible hose couplings for connecting pipework comprising nylon fabric or steel mesh carcass with waterproof cover and internal lining of material to suit fluid conveyed, temperatures and pressures indicated. Y52.2110A NATURAL CORKWOOD PIPEWORK NOISE VIBRATION ISOLATION: Incorporate within pipework support ring purpose made isolators manufactured from natural corkwood of density 160 kg/cubic metre, impregnated with fungicide, individually bound with steel strip not more than half depth of isolator. Y52.2110B RECONSTITUTED CORKWOOD PIPEWORK NOISE VIBRATION ISOLATION: Incorporate within pipework support ring purpose made isolators manufactured from resin bonded reconstituted soft corkwood granules, of density 100 kg/cubic metres. Y52.2110C RUBBER MATTING PIPEWORK NOISE VIBRATION ISOLATION: Incorporate within pipework support ring purpose made isolators manufactured from rubber matting. Y52.2120A SPONGE FOAM PIPE WALL AND RISER SEALS: Provide pipe sleeves, minimum length 300mm, with minimum 25mm dense sponge foam lining bonded internally. Y52.2120B MINERAL FIBRE PACKING PIPE WALL AND RISER SEALS: Provide pipe sleeves, minimum length 300mm, with minimum 52mm mineral fibre packing lining bonded internally. Y52.3040 HORIZONTALLY RESTRAINED SPRING MOUNTINGS:



Ensure snubbers for limiting excessive movement are installed out of contact during normal operation.

Y54 - IDENTIFICATION - MECHANICAL


Y54 IDENTIFICATION - MECHANICAL Y54.1000 GENERAL 1010 REQUIREMENTS: Identify all pipework, ductwork, equipment, appliances and ancillaries comprising the various systems. 1020 NEW SYSTEMS: Comprehensively label and colour code throughout works as indicated. 1030 EXISTING SYSTEMS: Where identification details are incompatible with those required for new systems, obtain approval to mode of cross referencing. 1040 COLOURS: As indicated to colour ranges given in BS 381C and BS 4800. 1045 PEFORMANCE AND DURABILITY: Ensure durability of identification for safety purposes is to BS ISO 17398. Y54.2010 PIPEWORK IDENTIFICATION: Standards - Colour code and label to BS 1710. Primary Identification Apply colour bands, 300mm wide, to each pipe at least Once in every room or enclosed area. At intervals not exceeding fifteen metres. At every junction. At every valve. At every inspection and access position into service shafts, false ceilings, bulkheads etc. Secondary Identification Apply colour bands, 50mm wide, and superimpose a legend identifying circuit, direction of fluid or gas flow, nominal pipe bore and, where appropriate, fluid or gas pressure. Legends Apply to colour bands by transfers of an approved type. Y54.2020 DUCTWORK IDENTIFICATION: Standards

Generally colour code and label to HVCA Specification DW 144 (Appendix B). Primary Identification

Apply colour bands, 300mm wide, to each duct at least Once in every room or enclosed area. At intervals not exceeding fifteen metres. At every junction. At every damper. At every inspection and access position into service shafts, false ceilings, bulkheads etc.

Secondary Identification For ducts with longest side or diameter up to and including 225mm. Paint colour bands 50mm wide and superimpose legends. For ducts with longest side or diameter over 225mm. Paint or apply transfers to identification triangles, or triangular plates. Superimpose or incorporate legends.

Triangular Plates Attach to buckle bands or stool pieces and fix to ducting, with apex indicating direction of airflow. Submit details of plates and fixings for approval before painting and marking. Use equilateral triangle of side 150mm minimum.

Legends Apply transfers of an approved type to colour bands or triangles or triangular plates. Identify floor and space served, associated equipment reference and direction of airflow.



Y54.2030B PLANT AND EQUIPMENT IDENTIFICATION, LAMINATED PLATES: Standards

Identify each item of equipment by name and, where appropriate, by agreed reference characters. Provide colour identification as called for in work sections and, in all cases, colour fire fighting equipment red.

Identification Colours Use primary and secondary identification colours of associated system.

Plates Use rectangular metal or laminated plastic, securely fixed to each item of equipment.

Lettering Laminated plates, multi-coloured with outer layer removed for lettering.

Legends Engrave plates with an approved text. Incorporate operating duty of equipment where this is not incorporated in other labelling.

Y54.2035 GRAPHICAL SYMBOLS FOR USE ON EQUIPMENT IN ACCORDANCE WITH BS EN 80416: Graphical symbols for use on equipment to be created and applied in accordance with BS EN 80416-1, BS EN 80416-2, BS EN 80416-3. Y54.2040 VALVE AND COCK IDENTIFICATION: Standards

Identify each valve, cock, stop valve, air vent, drain cock etc. with disc engraved with numerical reference. Except where exposed in occupied areas.

Identification Colours Use primary and secondary identification colours of associated system for painted or self colour discs.

Discs Securely attach metal or laminated plastic discs, minimum diameter 35mm, to each item.

Legends Engrave discs with permanent characters, minimum height 6mm.

Incorporate in operating instructions relating to regulating valves and flow measuring equipment, details of flow rate, pressure differential and setting, as appropriate. Y54.2070 AIR VOLUME REGULATING AND CONTROL DAMPER IDENTIFICATION: Standards

Identify each regulating and control damper. Except where exposed in occupied areas. On ductwork dampers, clearly indicate commissioning set point.

Identification colours Use primary and secondary identification colours of associated system for painted or self colour discs.

Discs Securely attach metal or laminated plastic discs, minimum diameter 35mm, to each item.

Legends Engrave discs with permanent characters, minimum height 6mm.

Y54.2080 INSTRUMENT IDENTIFICATION: Standards

Identify each instrument by name and, where appropriate, by agreed reference characters. Plates

Use rectangular metal or laminated plastic, securely fixed to each instrument. Legends

Engrave plates with an approved text. Y54.2090 DANGER AND WARNING NOTICES:



Hazardous Systems Colour code and label hazardous systems and equipment to requirements of Health and Safety Executive Guidance Notes.

Y54.2100A SYSTEM IDENTIFICATION INSTALLATION CHARTS, PERSPEX GLAZED FRAME: System Schematics

Supply and fix a referenced schematic diagram (or diagrams) of all systems as installed, including equipment and ancillary schedules. Show scheduled information on diagram. Identify all items by appropriate reference characters.

Control Schematics Supply and fix a referenced schematic diagram (or diagrams) of all control systems as installed, including equipment and ancillary schedules. Show scheduled information on diagram. Identify all items by appropriate reference characters.

Location Fix in each boiler house, calorifier room, plant room or equipment room.

Finish Perspex sheet glazing with surrounding frame and mounting attachments.

Y54.2100B SYSTEM IDENTIFICATION INSTALLATION CHARTS, ACRYLIC GLAZED HARDWOOD FRAME: System Schematics

Supply and fix a referenced schematic diagram (or diagrams) of all systems as installed, including equipment and ancillary schedules. Show scheduled information on diagram. Identify all items by appropriate reference characters.

Control Schematics Supply and fix a referenced schematic diagram (or diagrams) of all control systems as installed, including equipment and ancillary schedules. Show scheduled information on diagram. Identify all items by appropriate reference characters.

Location Fix in each boiler house, calorifier room, plant room or equipment room.

Finish Hardboard 3mm thick set in hardwood frame and glazed with1.5mm clear acrylic.

Y72 - CONTACTORS AND STARTERS


Y72 CONTACTORS AND STARTERS Y72.1000 GENERAL Y72.1010A 3 PHASE SUPPLY: Ensure all electrical equipment supplied and installed is suitable for 3 phase power supply to BS 7697. Y72.1010B SINGLE PHASE ELECTRICAL SUPPLY: Ensure all electrical equipment supplied and installed is suitable for single phase power supply to BS 7697. Y72.2130A MOTOR STARTERS - MOTORS BELOW 0.37 KW: Provide fuses or circuit breakers for motors below 0.37 kW. Y72.2130B MOTOR STARTERS - MOTORS OF 0.37KW AND ABOVE: Provide starters incorporating overcurrent protection for motors of 0.37kW and above. Provide starter with manual reset, adjustable, inverse time delay, and ambient temperature compensated thermal overcurrent release to BS EN 60947-4-1. Ensure overcurrent release is compatible with starting, accelerating and running characteristics of motor, starter and driven machine combination. Use phase unbalance protection on three phase equipment. Y72.2150 DIRECT-ON-LINE MOTOR STARTERS: Use direct-on-line starter to BS EN 60947-4-1, with single phase motors and three phase motors. Y72.2160 STAR DELTA MOTOR STARTERS: Use star delta starter to BS EN 60947-4-1 with three phase motors. Incorporate adjustable time delay contactor relays, to control star delta changeover, ensuring electrical endurance compatible with starter contactors. Ensure starting sequence activated on voltage restoration. Y72.2190A CONTROL PANEL INVERTOR MOTOR STARTERS: Supply inverters to control speed of standard AC Squirrel cage motors. Inverter type - Digital PWM. Location - Control panel. Control range - 0.5 to 120 Hz Power factor - 0.95 or better. Starting current - Not to exceed 1 x FLC. Characteristics Ensure acceleration and deceleration ramps are independently adjustable. Allow connection to a turning motor without braking to a standstill. Allow connection to a reverse windmilling fan without causing tripping and return fan to correct speed. Ensure inverters require no additional means for starting. Supply inverters that do not require electrical matching to motor. Ensure inverters are capable of running motors in parallel. EMC characteristics to BS EN 61800. Mains interruption Ensure inverter does not cause tripping through a mains interruption of 200 msec. Protection Ensure inverter incorporates the following protection to cause electronic shut down without operating circuit protective devices. Motor phase to phase fault; motor phase to earth fault; overvoltage; undervoltage; inverter overheat; motor overheat; loss of control signal; loss of auxiliary control voltage; current limit. Inverter controls - Local/remote facility. Display

Y72 - CONTACTORS AND STARTERS


Make provision for inverter to display externally, external and internal faults following a failure. Show 1st, 2nd and 3rd up sequential faults. Provide digital readout to show output frequency Hz; reference 1 (Hand); reference 2 (Auto); motor current (% or Amps); fault memory. Provide volt free remote signalling contacts to indicate common fault; running/stopped conditions; healthy/tripped conditions. Ensure parameters can be set and fault memory interrogated with door closed, and without additional instrumentation. Y72.2200 AUTOMATIC CHANGEOVER FOR RUN/STANDBY DUTY - SINGLE POWER SUPPLY: • Provide system malfunction audible alarm. Fit a control switch to starter enclosure arranged to select either motor for "run" or "standby" duty. Indicate selection of respective motor by illumination of indicator lights on starter enclosure. Provide facilities for connection of remote indicator lights to indicate selection/operation of system and for connection of a system malfunction audible alarm where indicated. Arrange for selected "run" duty motor to operate in response to system controls, and in event of operation of duty motor starter overcurrent trip, for automatic changeover to "standby" motor. Control power supply to starter by an air break isolating switch interlocked with starter enclosure access door. Y72.2210 AUTOMATIC CHANGEOVER FOR RUN/STANDBY DUTY - DUAL POWER SUPPLY: • Provide system malfunction audible alarm. Fit a control switch to starter enclosure arranged to select either motor for "run" or "standby" duty. Indicate selection of respective motor and availability of the two power supplies by illumination of indicator lights on starter enclosure. Provide facilities for connection of remote indicator lights to indicate selection/operation of system and for connection of a system malfunction audible alarm where indicated. Arrange for selected "run" duty motor to operate in response to system controls, and on loss of power supply to "run" duty motor or operation of motor starter overcurrent trip, for automatic changeover to "standby" motor. Control the two power supplies by a single air break multiple isolating switch interlocked with starter enclosure access door. Y72.3010 INSTALLATION: Install control panels, motor control centres, contactors and starters in accordance with BS EN 60947 and manufacturer's recommendations.

Y90 - FIXING TO BUILDING FABRIC


Y90 FIXING TO BUILDING FABRIC Y90.1000 GENERAL 1010 PREPARATION: Mark-out, set-out and firmly fix all equipment, components and necessary brackets and supports. 1020 MANUFACTURER'S DRAWINGS: Use manufacturer's drawings and templates for purposes of marking and setting out. 1030 FIXINGS: Ensure structure and fixings are suitable for items to be fixed. 1040 LOADING DETAILS: Provide loading details for all fixing types. 1050 BUILDING-IN BY OTHERS: Provide all necessary assistance to enable any item of building-in type to be built in by others. 1060 SIZE OF FIXING: Use largest size of bolt, screw or other fixing permitted by diameter of hole in item to be fixed. 1070 GREASING OF FIXINGS: Ensure all bolts, screws or other fixings used are greased or lubricated in accordance with manufacturer's instructions. Y90.2010 STANDARDS: Ensure that fixings such as expanding anchors are tested for tensile loading in accordance with BS 5080-1. Y90.2020 PLUGS: Use plugs of suitable size and length for fixings. Use plastic, fibrous or soft metal non-deteriorating plugs to suit application. Do not use wood plugs. Ensure that when screw is in place, threaded length is in plug. Ensure plugs used for screw fixing are set-in to correct depth prior to final tightening. Y90.2030 SCREWS: Use screws to BS 1210. Generally use sherardized steel wood screws for fixing to concrete, brickwork or blockwork. In damp or exposed situations use greased brass wood screws. Y90.2080 NON-PENETRATIVE SUPPORT SYSTEMS FOR ROOF MOUNTED EQUIPMENT: • Manufacturer and reference

• Or approved equivalent Obtain approval prior to using non-penetrative support systems for roof mounted equipment. Y90.3010 DRILLING: Drill holes squarely. Use drills of requisite size and depth, and appropriate to fabric. Do not flame-cut holes in metal work. Y90.3050 FIXING TO TIMBER RAILS: Fix equipment, brackets and supports by drilling hole through timber rail and fixing with bolt, back plate, washer and loose nut. Y90.3060A FIXING TO HOLLOW STUD/TILE/BLOCK WALLS: Fix equipment, brackets and supports where there is access at rear of wall, by drilling hole through wall and fixing with bolt, back-plate, washer and loose nut. Fix equipment, brackets and supports where there is no access at rear of wall, drill hole and use screw anchor type fixing or gravity type toggle fixing.

Y90 - FIXING TO BUILDING FABRIC


Y90.3070A FIXING TO CONCRETE, BRICKWORK OR BLOCKWORK: Fix equipment, brackets and supports using wood screws in plugs or, as appropriate, drill holes and fix using steel bolts of grouted bolt type or expanding bolt type fixing. Y90.3080A FIXING TO METALWORK: Fix equipment, brackets and supports by drilling holes and fixing using set screws or bolts complete with washers, shakeproof washers and loose nuts. Y90.3090A FIXING TO STRUCTURAL STEELWORK AND CONCRETE STRUCTURES: Provide manufacturer's information on recommended fixing. Obtain approval for any fixing to structure steel work and concrete structures. Generally use proprietary fixings to structural steelwork and concrete structures. Obtain approval to cut holes in structural steelwork or concrete structures or weld to structural steelwork. Y90.3100# NON-PENETRATIVE SUPPORT SYSTEMS FOR ROOF MOUNTED EQUIPMENT: Provide manufacturer's information on recommended support systems. • Obtain the necessary approvals to use non-penetrative support systems as follows:

• Ensure that the roof surface is compatible with non-penetrative supports • Ensure that necessary approval is given by

• The Bank • Mounting positions • Roof loading parameters

• Wind Loadings • Point Loads • Pressures

• Components • Support leg type • Support frame type

• Maintenance • Ensure that future maintenance access to roof finish is provided under support system.

Y91 - PAINTING AND ANTI-CORROSION TREATMENTS


Y91 PAINTING AND ANTI-CORROSION TREATMENTS Y91.1000 GENERAL: Y91.2010A PAINT MATERIALS: Use the following materials as appropriate Solvent borne priming paint to BS 7956 for bare woodwork. Red Oxide priming paint for bare iron and steelwork. Zinc Chromate priming paint for bare ferrous and non-ferrous metals. Calcium Plumbate priming paint to BS 3698 for galvanized steel or composite wood/metal components. Undercoating paint for previously primed or painted surfaces before the application of finishing coats. Gloss finishing paint for previously primed or painted/undercoated surfaces. Epoxy resin paint for specialist coatings requiring resistance to acids, alkalis, oils, solvents, abrasion or high humidity. Aluminium paint to BS 388 for structural steelwork, storage vessels, heated metallic surfaces and similar applications where moisture and heat resistant properties are required. Cold galvanizing paint for making good damage to previously galvanized surfaces and protection to galvanized materials modified during installation. Zinc-rich metallic to BS 4652 for bare iron and steelwork where electrical conductivity has to be assured. Black tar-based paint to BS 1070 for moisture resistant protection to metal surfaces where decorating appearance is not important. Bitumen based coatings for cold application to BS 3416 protection to iron and steel, particularly pipelines and fittings for use in contact with potable water. Bitumen based coatings for cold application to BS 6949 not to be used in contact with potable water. Y91.2020 PAINT QUALITY: Ensure paints used are of quality and type to suit application and that:- primers have good adhesion, covering power, rust-inhibiting and grain filling properties. gloss finishing paints are of machine finish grade having high adhesion and high resistance to solvents, mineral oils, cutting oils, detergents, chipping and impact damage.

Y92 - MOTOR DRIVES - ELECTRIC


Y92 MOTOR DRIVES - ELECTRIC 1000 GENERAL 1040A MANUFACTURER FITTED SURGE SUPPRESSORS: Supply surge suppressors to star connected motors and to all motors subject to star-delta starting to limit peak voltage to 1200 volts. Fitted by manufacturer. 1050A MANUFACTURER FITTED TRANSIENT SUPPRESSORS: Supply transient suppressors in the form of resistor and capacitor networks across the starter contactor coils. Fitted by manufacturer. 2010A STANDARD OPERATING CONDITIONS: Ensure motors, starters and ancillary equipment are suitable for operation at full capacity at heights above sea level not exceeding 1000m, with air cooling at an average temperature over 24 hours not exceeding 35oC dry bulb with maximum conditions of 40oC dry bulb and 50 per cent RH. 2020 MOTORS - GENERAL: Standard • Use motors which conform to BS EN 60034, as applicable, which operate at lowest possible

speed, compatible with performance requirements. Ratings • Select maximum continuous rating (MCR) such that • Driven machine operates at correct speed or speeds at design duty. • When running continuously at design rated duty, the temperature of the motor parts is within

limits defined in BS EN 60034-1. • When provided with excess motor current (over-load) protection of thermal overcurrent

release type, ensure operation is within tolerances of tripping as defined in BS EN 60947-4-1.

Insulation • Use motors with Class 130 or 155 to BS EN 60085 insulation, with temperature rise as

defined in BS EN 60085. Conduit entry • Fit motor bodies with conduit entry terminal box or cable gland as required, and to suit type

and size of cable being terminated.



2025A CLASS 1 MOTOR EFFICIENCY: Supply a Class Eff 1 High Efficiency Motor (HEM) with a stated efficiency as European Motor efficiency classes table below. Power kW Min Eff Class 2 (%) Min Eff Class 1

(%) 2 Pole 4 Pole 2 Pole 4 Pole 1.1 76.2 76.2 82.2 83.8 1.5 78.5 78.5 84.1 85.0 2.2 81.0 81.0 85.6 86.4 3.0 82.6 82.6 86.7 87.4 4.0 84.2 84.2 87.6 88.3 5.5 85.7 85.7 88.5 89.2 7.5 87.0 87.0 89.5 90.1 11.0 88.4 88.4 90.6 91.0 15.0 89.4 89.4 91.3 91.8 18.5 90.0 90.0 91.8 92.2 22.5 90.5 90.5 92.2 92.6 30.0 91.4 91.4 92.9 93.2 37.0 92.0 92.0 93.3 93.6 45.0 92.5 92.5 93.7 93.9 55.0 93.0 93.0 94.0 94.2 75.0 93.6 93.6 94.6 94.7 2030 SLIDE RAILS: Fit motors on slide rails or other suitable means of adjustment to facilitate correct alignment and belt tension. 2040 PLINTHS: Where plinths are built in by others, provide all necessary assistance and information. 2050A MOTOR RATINGS - UP TO AND INCLUDING 0.75KW: Single or three phase, totally enclosed, frame cooled or fan cooled. For duty and torque requirements of driven machine. 2050B MOTOR RATINGS - ABOVE 0.75KW UP TO AND INCLUDING 4KW: Three phase, squirrel cage induction type, totally enclosed, frame cooled or fan cooled. To BS EN 60034-5 and BS EN 60034-6 IP44 - IC 01.411. 2050C MOTOR RATINGS - ABOVE 4KW SQUIRREL CAGE, DRIP-PROOF: Three phase, squirrel cage, induction type, drip-proof enclosure. To BS EN 60034-5 and BS EN 60034-6 IP22S - IC 01. 2050D MOTOR RATINGS - ABOVE 4KW WOUND ROTOR, DRIP PROOF: Three Phase, wound rotor, slip type, drip-proof enclosure. To BS EN 60034- 5 and BS EN 60034-6 IP22S -IC 01. 2050E MOTOR RATINGS - ABOVE 4KW SQUIRREL CAGE, TOTALLY ENCLOSED: Three phase, squirrel cage, induction type, totally enclosed, frame or fan cooled. To BS EN 60034-5 and BS EN 60034-6 IP44 - IC 01.411. 2050F MOTOR RATINGS - ABOVE 4KW WOUND ROTOR, TOTALLY ENCLOSED:



Three phase, wound rotor, slip ring type, totally enclosed, fan cooled. To BS EN 60034-5 and BS EN 60034-6 IP44 - IC 01.411 or IC 01.511 as applicable. 2050G MOTOR RATINGS - ABOVE 4KW SQUIRREL CAGE, SMOKESPILL: Three phase squirrel cage, induction type for smokespill applications. To BS EN 60034-5 and BS EN 60034-6 IP55, cooling as applicable. 2050H ABOVE 4KW SQUIRREL CAGE, ENERGY EFFICIENT DESIGN: Three phase, squirrel cage, induction type energy efficient design, totally enclosed, fan cooled to BS EN 60034-5 and BS EN 60034-6 IP55 - IC 01.411. 2060A MOTORS - OVER TEMPERATURE PROTECTION, THERMISTORS: Fit positive temperature coefficient thermistors to BS EN 60034-11. Provide a minimum of 3 PTC thermistors in each motor with 2 ends terminated in motor terminal box clearly and permanently marked.

For motors rated between 30kW and 75kW provide a single thermistor in each phase. For motors rated above 75kW provide two thermistors in each phase.

Provide control unit to BS EN 60034 to motors fitted with thermistors. Interconnect control unit with thermistors and starter to trip starter when one or all of thermistors detect overheating. 2070A INDIRECT DRIVES WITH TOOTHED BELTS: Belts

Use toothed wedge belts to BS 3790. Provide at least two matched belts for any drive, of anti-static type and rated to transmit full machine power with one belt removed. Pulleys

Construct pulleys from approved materials and statically balance. Lock close limit bores by keys fitting into machinery shaft keyway.

Pulley Adjustment Adjust pulley to give alignment and correct belt tension.

2070B INDIRECT DRIVES WITH FLAT BELTS: Belts

Use flat wedge belts to BS 3790. Provide at least two matched belts for any drive, of anti-static type and rated to transmit full machine power with one belt removed.

Pulleys Construct pulleys from approved materials and statically balance. Lock close limit bores by keys fitting into machinery shaft keyway.

Pulley Adjustment Adjust pulley to give alignment and correct belt tension.

2080A DIRECT COUPLED DRIVES: Use an extended motor shaft coupled to machine or a flexible coupling connecting driving and driven shafts, incorporate suitable arrangements for aligning the two shafts. Mount motors on a substantial mild steel bed plate fixed to machine casing separately supported or supported entirely from the machine casing. 2085 VARIABLE SPEED DRIVE: Use variable speed drive to match design and installed flow volumes. 2090A GUARDS: Totally protect drives and couplings. Fit purpose made guards around all exposed or otherwise accessible drive shafts, pulleys, 'V' belts or couplings. Ensure guards comply with National or Local Safety Codes, Acts and Bye-Laws and incorporate following features.

Construction to BS EN ISO 12100 and generally of galvanized steel wire mesh.



Stiffening within the guards to ensure rigidity and freedom from vibration. Allowance for prime mover adjustment during belt tensioning procedures. Temporary access to all shafts for use of Tachometer.

BS EN 60034-2-1:2007 Rotating electrical machines. Part 2-1 Standard methods for determining losses and efficiency from tests (excluding machines for traction vehicles)

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