TABLE OF CONTENTS - Neptune Energy...be used when in accordance with the requirements of the PED and...
Transcript of TABLE OF CONTENTS - Neptune Energy...be used when in accordance with the requirements of the PED and...
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Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 2 of 151
TABLE OF CONTENTS
1.0 SCOPE .................................................................................................................................................... 6
1.1 DEFINITIONS ............................................................................................................................................................ 6 1.2 CODES AND STANDARDS .................................................................................................................................. 6
2.0 GENERAL MATERIAL SPECIFICATIONS............................................................................................. 9
2.1 CARBON STEEL PIPING CLASSES 15 , 15H, 15U, 30U, 30, 30W, 30H (NOTE1) ..................................... 9 2.1.1 Pipes (Seamless) ............................................................................................................................................... 9 2.1.2 FlangesNOTE 2 ....................................................................................................................................................... 9 2.1.3 Tees, Elbows, Reducers (seamless) .................................................................................................................. 9 2.1.4 Caps, (manufactured from plate) ............................................................................................................... 9 2.1.5 Forged Fittings (O-lets, Couplings, Plugs, Unions, Forged Caps, etc.)........................................ 9 2.1.6 Valves .................................................................................................................................................................... 9 2.1.7 Stud Bolts/Nuts (for pipe flanges only) .................................................................................................. 9 2.1.8 Gaskets ................................................................................................................................................................. 9 2.1.9 Spectacles, Blinds and Spacers ................................................................................................................. 10 2.2 CARBON STEEL PIPING CLASS ........................................................................................................................ 10 2.2.1 Pipes (Seamless) ............................................................................................................................................. 10 2.2.2 Flanges ............................................................................................................................................................... 10 2.2.3 Tee's, Elbows, Reducers (seamless)......................................................................................................... 10 2.2.4 Caps, (manufactured from plate) ............................................................................................................. 10 2.2.5 Forged Fittings (O-lets, Couplings, Plugs, Unions, Forged Caps, etc.)...................................... 10 2.2.6 Valves .................................................................................................................................................................. 10 2.2.7 Stud Bolts/Nuts (for pipe flanges only) ................................................................................................ 11 2.2.8 Gaskets ............................................................................................................................................................... 11 2.2.9 Spectacles, Blinds and Spacers ................................................................................................................. 11 2.3 CUPRO-NICKEL PIPING CLASS 15UK ........................................................................................................... 11 2.3.1 Pipes (Seamless) ............................................................................................................................................. 11 2.3.2 Flanges ............................................................................................................................................................... 11 2.3.3 Tee's, Elbows, Reducers, Caps ................................................................................................................... 11 2.3.4 Valves .................................................................................................................................................................. 11 2.3.5 Studs Bolts/Nuts (for pipe flanges only)............................................................................................... 12 2.3.6 Gaskets ............................................................................................................................................................... 12 2.3.7 Blinds .................................................................................................................................................................. 12 2.4 POLYETHYLENE PIPING CLASS 15UP ........................................................................................................... 12 2.4.1 Pipes (Seamless) ............................................................................................................................................. 12 2.4.2 Fittings ................................................................................................................................................................ 12 2.4.3 Valves .................................................................................................................................................................. 12 2.4.4 Studs Bolts/Nuts (for pipe flanges only)............................................................................................... 12 2.4.5 Gaskets ............................................................................................................................................................... 12 2.5 AUSTENITIC STAINLESS STEEL PIPING CLASS .......................................................................................... 12 2.5.1 Pipes (Seamless) ............................................................................................................................................. 12 2.5.2 Flanges ............................................................................................................................................................... 12 2.5.3 Tee's, Elbows, Reducers (seamless)......................................................................................................... 13 2.5.4 Caps, (manufactured from plate) ............................................................................................................. 13 2.5.5 Forged Fittings (O-lets, Couplings, Plugs, Unions, Forged Caps, etc.) note 4 ............................ 13 2.5.6 Valves .................................................................................................................................................................. 13 2.5.7 Stud Bolts/Nuts ((for pipe flanges only) ............................................................................................... 13 2.5.8 Gaskets ............................................................................................................................................................... 13 2.5.9 Spectacles, Blinds and Spacers ................................................................................................................. 13 2.6 PARTICULAR MATERIAL APPRAISALS (PMA’S) ........................................................................................ 13
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3.0 MATERIAL SPECIFICATIONS AND TESTING REQUIREMENTS FOR PIPES, FITTINGS AND
VALVES FOR LOW TEMPERATURE CARBON STEEL ...................................................................... 14
3.1 GENERAL REQUIREMENTS ............................................................................................................................... 14 3.2 IMPACT TEST ......................................................................................................................................................... 16 3.3 PIPES ......................................................................................................................................................................... 16 3.4. WELDING NECK FLANGES ................................................................................................................................ 18 3.5 BLIND FLANGES .................................................................................................................................................... 19 3.6 SPECTACLES, BLINDS AND SPACERS ........................................................................................................... 20 3.7 SEAMLESS ELBOWS, TEES, REDUCERS ........................................................................................................ 22 3.8 CAPS (HEADS) (MANUFACTURED FROM PLATE) .................................................................................... 24 3.9 FORGED BRANCH CONNECTIONS (WELDOLETS, THREADOLETS, ELBOWLETS ETC.) AND . 26
FITTINGS (COUPLINGS, PLUGS, UNIONS, ETC.) ...................................................................................... 26 3.10 STUD BOLTS & NUTS (FOR FLANGE CONNECTIONS ONLY) ............................................................. 27 3.11 CASTINGS ................................................................................................................................................................ 29 3.12 VALVES, APPURTENANCES .............................................................................................................................. 30
4.0 PIPING CLASSIFICATION INDEX ...................................................................................................... 32
4.1 SERVICE SYMBOLS FLOW MEDIUM ............................................................................................................. 32 4.2 LINE NUMBERING CODE................................................................................................................................... 33 4.3 PRESSURE/TEMPERATURE LIMITS ................................................................................................................. 33
5.0 PIPING SPECIFICATIONS .................................................................................................................. 34
5.1 PIPING SPECIFICATION CLASS 15 ................................................................................................................. 34 5.2 PIPING SPECIFICATION CLASS 15H .............................................................................................................. 39 5.3 PIPING SPECIFICATION CLASS 15C .............................................................................................................. 43 5.4 PIPING SPECIFICATION CLASS 15U .............................................................................................................. 46 5.5 PIPING SPECIFICATION CLASS 15UK ........................................................................................................... 51 5.6 PIPING SPECIFICATION CLASS 15UP ........................................................................................................... 54 5.7 PIPING SPECIFICATION CLASS 15S ............................................................................................................... 56 5.8 PIPING SPECIFICATION CLASS 15SH ........................................................................................................... 59 5.9 PIPING SPECIFICATION CLASS 30 ................................................................................................................. 61 5.10 PIPING SPECIFICATION CLASS 30W ............................................................................................................. 65 5.11 PIPING SPECIFICATION CLASS 30H .............................................................................................................. 69 5.12 PIPING SPECIFICATION CLASS 30U .............................................................................................................. 73 5.13 PIPING SPECIFICATION CLASS 60 ................................................................................................................. 76 5.14 PIPING SPECIFICATION CLASS 60H .............................................................................................................. 80 5.15 PIPING SPECIFICATION CLASS 90 ................................................................................................................. 83 5.16 PIPING SPECIFICATION CLASS 90H .............................................................................................................. 87 5.17 PIPING SPECIFICATION CLASS 150 ............................................................................................................... 91 5.18 PIPING SPECIFICATION CLASS 250 ............................................................................................................... 95 5.19 PIPING SPECIFICATION CLASS 500SNOTE 1 .................................................................................................. 99
6.0 SCOPE/DEFINITIONS/CODES AND STANDARDS ........................................................................ 101
6.1 DEFINITIONS ....................................................................................................................................................... 101 6.2 CODES AND STANDARDS ............................................................................................................................. 101
7.0 GENERAL MATERIAL SPECIFICATIONS......................................................................................... 103
7.1 DUPLEX STAINLESS STEEL PIPING CLASSES 15DS, 15DSH, 30DS, 60DS, 90DS, 90DSH, 150DS
AND 250DS ......................................................................................................................................................... 103 7.1.1 Pipes (Seamless) .......................................................................................................................................... 103 7.1.2 Flanges ............................................................................................................................................................ 103 7.1.3 Tees, Elbows, Reducers, (manufactured from Seamless pipe) .................................................. 103 7.1.4 Caps, (manufactured from plate) .......................................................................................................... 103
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7.1.5 Forged Fittings (O-lets, Couplings, Plugs, Unions, Forged Caps, etc.)................................... 103 7.1.6 Valves ............................................................................................................................................................... 103 7.1.7 Stud Bolts/Nuts ........................................................................................................................................... 103 7.1.8 Gaskets ............................................................................................................................................................ 103
8.0 CERTIFICATION ................................................................................................................................ 104
8.1 REQUIRED CERTIFICATES FOR PLATE, PIPE, FITTINGS AND FORGINGS .................................... 104 8.2 CERTIFICATE COMPLIANCE .......................................................................................................................... 104 8.3 MANUFACTURER'S REPORT ......................................................................................................................... 104
9.0 MATERIAL SPECIFICATIONS AND TESTING REQUIREMENTS FOR PLATES, PIPES, FITTINGS
AND VALVES FOR DUPLEX STAINLESS STEELS ........................................................................... 105
9.1 GENERAL REQUIREMENTS ............................................................................................................................ 105 9.2 BASE MATERIAL ................................................................................................................................................. 106 9.2.1 Chemical Composition.............................................................................................................................. 106 9.2.2 Mechanical Properties .............................................................................................................................. 106 9.2.3 Impact Test .................................................................................................................................................... 106 9.2.4 Corrosion Test .............................................................................................................................................. 106 9.2.5 Ferrite/Austenite Ratio .............................................................................................................................. 106 9.3 FABRICATION OF THE PIPES, FITTINGS AND FORGINGS, GENERAL REQUIREMENTS ......... 107 9.3.1 Fabrication ..................................................................................................................................................... 107 9.3.2 Welding End Preparation......................................................................................................................... 107 9.3.3 Heat Treatment ............................................................................................................................................ 107 9.3.4 Surface Condition ....................................................................................................................................... 107 9.4 PIPES ...................................................................................................................................................................... 108 9.5 WELDING NECK FLANGES AND BLIND FLANGES ................................................................................ 109 9.6 SEAMLESS ELBOWS, TEES, REDUCERS (MANUFACTURED FROM PIPE)...................................... 110 9.7 CAPS (HEADS, MANUFACTURED FROM PLATE) .................................................................................. 111 9.8 FORGED FITTINGS (WELDOLETS, ELBOWLETS ETC.) ........................................................................... 112 9.9 STUD BOLTS & NUTS (FOR FLANGE CONNECTIONS ONLY) .......................................................... 113 9.10 VALVES, APPURTENANCES ........................................................................................................................... 115 9.11 SPECTACLES, BLINDS AND SPACERS ........................................................................................................ 116
10.0 FERRITIC/AUSTENITIC CASTINGS ................................................................................................. 117
10.1 BASE MATERIAL ................................................................................................................................................. 117 10.1.1 Chemical Composition.............................................................................................................................. 117 10.1.2 Heat Analysis ................................................................................................................................................ 117 10.1.3 Product Analysis (After heat treatment) ............................................................................................ 117 10.2 PHYSICAL PROPERTIES AND TESTS ........................................................................................................... 117 10.2.1 Mechanical Properties .............................................................................................................................. 117 10.2.2 Frequency of Testing ................................................................................................................................. 118 10.2.3 Re-tests ........................................................................................................................................................... 118 10.2.4 Notch Ductility Tests ................................................................................................................................. 118 10.2.5 Hardness Tests and Ferrite/Austenitic Ratio .................................................................................... 118 10.2.6 Test Coupons ................................................................................................................................................ 118 10.2.7 Radiographic Examination ...................................................................................................................... 118 10.2.8 Corrosion Test .............................................................................................................................................. 118 10.2.9 Surface Examination .................................................................................................................................. 118 10.3 PROCESS OF MANUFACTURE AND HEAT TREATMENT .................................................................... 119 10.3.1 Process of Manufacture............................................................................................................................ 119 10.3.2 Heat Treatment ............................................................................................................................................ 119 10.3.3 Heat Treatment Procedure (Further to EN 10213) ........................................................................ 119 10.3.4 Re-heat Treatment ..................................................................................................................................... 119
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10.4 WORKMANSHIP, VISUAL INSPECTION AND REPAIR OF DEFECTS ............................................... 120 10.4.1 Visual Inspection ......................................................................................................................................... 120 10.4.2 Base Material Repair by Welding ......................................................................................................... 120 10.5 MARKING ............................................................................................................................................................. 120 10.5.1 Casting Marking .......................................................................................................................................... 120 10.6 DOCUMENTATION/CERTIFICATION ......................................................................................................... 121
11.0 PIPING CLASSIFICATION INDEX .................................................................................................... 122
11.1 SERVICE SYMBOLS FLOW MEDIUM .......................................................................................................... 122 11.2 LINE NUMBERING CODE................................................................................................................................ 122 11.3 PRESSURE/TEMPERATURE LIMITS .............................................................................................................. 122
12.0 PIPING SPECIFICATIONS ................................................................................................................ 123
12.1 PIPING SPECIFICATION CLASS 15DS ........................................................................................................ 123 12.2 PIPING SPECIFICATION CLASS 15DSH ..................................................................................................... 126 12.3 PIPING SPECIFICATION CLASS 30DS ........................................................................................................ 129 12.4 PIPING SPECIFICATION CLASS 60DS ........................................................................................................ 132 12.5 PIPING SPECIFICATION CLASS 90DS ........................................................................................................ 135 12.6 PIPING SPECIFICATION CLASS 90DSH ..................................................................................................... 138 12. 7 PIPING SPECIFICATION CLASS 150DS ...................................................................................................... 141 12. 8 PIPING SPECIFICATION CLASS 250DS ...................................................................................................... 144
APPENDIX I: SUMMARY SHEETS ................................................................................................................ 147
APPENDIX II: PARTICULAR MATERIAL APPRAISALS (PMA’s) ............................................................... 148
APPENDIX III: GASKET SELECTION TABLE ................................................................................................ 151
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PART I CARBON STEEL, AUSTENITIC STAINLESS STEEL, CUPRO-NICKEL, POLYETHYLENE
1.0 SCOPE
This specification covers the minimum requirements for piping components to be used for
process and utility systems on offshore platforms (see Note 1).
Part I describes the material requirements for general purposes whereas Part II covers Duplex
Stainless Steel which is specifically used for corrosive media.
All piping components can be identified by unique code numbers, which can be found in the
summary sheets in Appendix I.
Deviations from this specification or piping materials not listed in this specification can only
be used when in accordance with the requirements of the PED and EN 13480, and accepted
by Company.
All material shall be new and unused.
1.1 DEFINITIONS
Heat Material produced from the same ladle pour.
Product Finished casting, pipe or fitting.
Lot Parts made from the same dimensions and heat and
treated in the same heat treatment batch.
Should Indicates preferred course of action.
Shall Indicates mandatory requirements.
Company Noordgastransport B.V.
Low stress die-stamping Round bottom impression in accordance with MSS SP-25.
1.2 CODES AND STANDARDS
All piping components shall meet the requirements of the relevant latest edition of the
following:
2014/68/EU Pressure Equipment Directive (PED).
ASME 16.48 Steel Line Blinds.
API 6D Specification for Pipeline Valves.
API 607 Fire Test for Soft-Seated Quarter-Turn Valves.
API 6FA Specification for Fire Test for Valves.
ASME B16.5 Steel Pipe Flanges and Flanged Fittings (see Note 3).
ASME B16.47 Large Diameter Steel Flanges.
ASME B16.9 Factory made Wrought Steel Butt Welding Fittings.
ASME B16.34 Steel Valves, Flanged and Butt Welding Ends.
ASME B31.3 Chemical Plant and Petroleum Refinery Piping.
ASME B36.10 Welded and Seamless Wrought Steel Pipe.
ASME B36.19 Stainless Steel Pipe.
ASME B1.20.1 Pipe Threads, General Purpose.
ASME B18.2.2 Square and Hex Nuts.
ASME B1.1 Unified Inch Screw Threads
BS5351 Steel Ball Valves for the Petroleum, Petrochemical and Allied
Industries.
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BS6755 Testing of Valves – Part 2. Specification for fire type-testing
requirements.
NEN-EN 10021 General Technical Delivery Requirements for Steel and Iron
Products.
NEN-EN 10204 Metallic products, Types of inspection documents
(see Note 2).
NEN-EN 10028-2 Steel for Pressure Purposes Elevated Temperatures.
NEN-EN 10028-1 Flat products made of steel for Pressure Purposes. Part 1:
General requirements.
NEN-EN 10028-3 Flat products made of steel for Pressure Purposes. Part 3:
Weldable fine grain steels, normalized.
NEN-EN-ISO 148-1 Metallic materials – Charpy pendulum impact test – Part 1:
Test method.
NEN-EN 10213 Steel castings for pressure purposes
NEN-EN 10216-1 Seamless steel tubes for pressure purposes – Technical
delivery conditions – Part 1: Non-alloy steel tubes with
specified room temperature properties.
NEN-EN 10216-4 Seamless steel tubes for pressure purposes – Technical
delivery conditions – Part 4 Non-alloy and alloy steel tubes
with specified low temperature properties.
NEN-EN 10216-5 Seamless steel tubes for pressure purposes – Technical
delivery conditions – Part 5: Stainless steel tubes.
NEN-EN 10222-1 Steel forgings for pressure purposes – Part 1: General
requirements for open die forgings.
NEN-EN 10222-4 Steel forgings for pressure purposes – Part 4: Weldable fine
grain steels with high proof strength.
NEN-EN 10222-5 Steel forgings for pressure purposes – Part 5: Martensitic,
austenitic and austenitic-ferritic stainless steels.
NEN-EN 10253-1 Butt welding pipe fittings – Part 1: Wrought carbon and
ferritic alloy steel without specific inspection requirements.
NEN-EN 10253-2 Butt welding pipe fittings – Part 2: Wrought carbon and
ferritic alloy steel with specific inspection requirements.
NEN-EN 10253-3 Butt welding pipe fittings – Part 3 : Wrought austenitic and
austenitic-ferritic (duplex) stainless steels without specific
inspection requirements
NEN-EN 10253-4 Butt welding pipe fittings – Part 4 : Wrought austenitic and
austenitic-ferritic (duplex) stainless steels with specific
inspection requirements
NEN-EN 10269 Steels and nickel alloys for fasteners with specified elevated
and/or low temperature properties.
NEN-EN 13480-1 Metallic Industrial Piping. Part 1: General.
NEN-EN 13480-2 Metallic Industrial Piping. Part 2: Material.
NEN-EN 13480-3 Metallic Industrial Piping. Part 3: Design and Calculations.
NEN-EN 13480-4 Metallic Industrial Piping. Part 4: Fabrication and Installation.
NEN-EN 13480-5 Metallic Industrial Piping. Part 5: Inspection and Testing.
MSS SP-25 Standard Marking Systems for Valves, Fittings, Flanges,
Unions.
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Company Specifications:
502 – Specification for Piping Fabrication and Pressure Testing.
505 – Specification for dimensional requirements of BW pipe fittings.
524 – Specification for coating of threaded fastners.
525 – General Specification for Painting and Coating.
Note 1. Materials used on K12-B Complex, D15-FA-1, L5-FA-1, L15-FA-1, F3B-A, F3B-
O and F3B-P are not covered by this specification.
Note 1. Only the number designation is given in this specification.
Note 2. For flanges larger than 24" ASME B16.47 Class A shall apply.
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2.0 GENERAL MATERIAL SPECIFICATIONS
2.1 CARBON STEEL PIPING CLASSES 15 , 15H, 15U, 30U, 30, 30W, 30H (NOTE1)
(Note: see Appendix II – Particular Material Appraisals (PMA’s).
2.1.1 Pipes (Seamless)
Material : ASTM A106 Grade B,
maximum Carbon Content 0.23%.
Certificate : 3.1
2.1.2 FlangesNOTE 2
Material : ASTM A105 N, maximum Carbon Content 0.23%.
Certificate : 3.1
2.1.3 Tees, Elbows, Reducers (seamless)
Base Material : ASTM A106 Grade B or approved equal
in accordance with NEN-EN 13480-2.
Certificate : 3.1
Manufacturing Code : ASTM A234 Grade WPB.
2.1.4 Caps, (manufactured from plate)
Base Material : ASTM A516 Grade 65
Certificate : 3.1
Manufacturing Code : ASTM A234 Grade WPB
2.1.5 Forged Fittings (O-lets, Couplings, Plugs, Unions, Forged Caps, etc.)
Material : ASTM A105 N. maximum Carbon Content 0.23%.
Certificate : 3.1
2.1.6 Valves
Material : ASTM A105 N/A216 Grade WCB,
maximum Carbon Content 0.25%.
Certificate : 3.1
2.1.7 Stud Bolts/Nuts (for pipe flanges only)
Material : ASTM A320 Grade L7/A194 Grade 7,
Aluminium plated and PTFE coated.
Certificate : 3.1
Thread : In accordance with ASME B1.1.
for D=1" or smaller: UNC, for D larger than 1": UN
(8TPI).
2.1.8 Gaskets
Classes 15, 15U : Non-Asbestos.
Classes 15H, 30, 30W, 30H, 30U : Spiral Wound.
Certificate : 2.1.
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2.1.9 Spectacles, Blinds and Spacers
Material : ASTM A516 Grade 65 or P275NH to EN 10028-3
Certificate : 3.1
Note 1. Specifications apply for sizes up to and including ND 1", for larger sizes
see paragraph 2.2.
Note 2. The maximum sizes of tapped holes in blind flanges are:
6" or larger - 1½" NPT
3" or 4" - 1" NPT
2" - ¾" NPT
1½" or smaller - none
For larger size holes, reducing threaded flanges shall be used.
2.2 CARBON STEEL PIPING CLASS
15NOTE 1, 15HNOTE 1, 15C, 15UNOTE 1, 30NOTE 1, 30HNOTE 1, 30WNOTE 1, 30UNOTE 1, 60, 60H, 90,
90H, 150, 250 (Note: see Appendix II – Particular Material Appraisals (PMA’s).
2.2.1 Pipes (Seamless)
Material : ASTM A333 Grade 6,
maximum Carbon Content 0.23%.
Certificate : 3.1
2.2.2 Flanges
Material : ASTM A350 Grade LF2 CL.1,
maximum Carbon Content 0.23%.
Certificate : 3.1
2.2.3 Tee's, Elbows, Reducers (seamless)
Base Material : ASTM A333 Grade 6 or approved equal
in accordance with NEN-EN 13480-2.
Certificate : 3.1
Manufacturing Code : ASTM A420 Grade WPL 6.
2.2.4 Caps, (manufactured from plate)
Base Material : ASTM A516 Grade 65
Certificate : 3.1
Manufacturing Code : ASTM A420 Grade WPL 6.
2.2.5 Forged Fittings (O-lets, Couplings, Plugs, Unions, Forged Caps, etc.)
Material : ASTM A350 Grade LF2 CL.1,
maximum Carbon Content 0.23%.
Certificate : 3.1
2.2.6 Valves
Material : ASTM A352 Grade LCC, maximum Carbon
Content 0,25% or ASTM A350 Grade LF2 CL.1
Certificate : 3.1
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2.2.7 Stud Bolts/Nuts (for pipe flanges only)
Material : ASTM A320 Grade L7/A194 Grade 7,
Aluminium plated and PTFE coated.
for D= larger than 2½": ASTM A320 Gr.L43/A194 Gr.7.
Certificate : 3.1
Thread : In accordance with ASME B.1.1.
D=1" or smaller: UNC, D=larger than 1": UNS (8TPI).
2.2.8 Gaskets
Classes 15, 15C : Non-Asbestos.
Classes 30, 30U, 30H, 30W, 60 : Spiral Wound.
Certificate : 2.1.
Classes 90, 90H, 150, 250 : Oval Ring, soft iron, zink plated.
Certificate : 3.1 - Heatnumber marked on ring.
2.2.9 Spectacles, Blinds and Spacers
Material : ASTM A516 Grade 65 or P275NH to EN 10028-3
Certificate : 3.1
Note 1. Specifications apply to sizes 1½" and larger. For sizes up to and including 1"
see section 2.1.
Note 2. The maximum sizes of tapped holes in blind flanges are:
6" or larger - 1½" NPT
3" or 4" - 1" NPT
2" - ¾" NPT
1½" or smaller - none
For larger size holes, reducing threaded flanges shall be used.
2.3 CUPRO-NICKEL PIPING CLASS 15UK
For the normally dry part of the deluge system, 90/10 Cupro-Nickel Alloy can be used as an
alternative for Carbon Steel.
For all 90/10 Cupro-Nickel Alloy pipe and fittings the 20 Bar system shall be utilised.
(Note: see Appendix II – Particular Material Appraisals (PMA’s).
2.3.1 Pipes (Seamless)
Material : ASTM B466, Annealed (Cupro-Nickel).
Certificate : 3.1
2.3.2 Flanges
Stub ends with CS-lap joint flange, stub end to MSS-SP43, type A blind flanges with CU-NI Disc.
Material : ASTM A105 N/ASTM B151, Galvanised
Certificate : 3.1
2.3.3 Tee's, Elbows, Reducers, Caps
Material : ASTM B151.
Certificate : 3.1
2.3.4 Valves
Material : Leaded Gun Metal (BS-LG-2).
Certificate : 3.1
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2.3.5 Studs Bolts/Nuts (for pipe flanges only)
Material : ASTM A320 Grade L7 /A194 Grade 7,
Aluminium plated and PTFE coated.
Certificate : 3.1
Thread : UNC in accordance with ASME B1.1.
2.3.6 Gaskets
Material : Non-Asbestos.
Certificate : 2.1.
2.3.7 Blinds
Material :
2.4 POLYETHYLENE PIPING CLASS 15UP
For the potable water system the following material can be used as an alternative for Class 15S.
2.4.1 Pipes (Seamless)
Material : High Density Polyethylene to DIN 8074/75.
Certificate : KIWA/GIVE.G.
2.4.2 Fittings
Material : High Density Polyethylene, with fusion sockets
to DIN8074/75.
Certificate : KIWA/GIVE.G.
2.4.3 Valves
Material : Stainless Steel Type 316L.
Certificate : 3.1
2.4.4 Studs Bolts/Nuts (for pipe flanges only)
Material : ASTM A320 Grade L7 /A194 Grade 7,
Aluminium plated and PTFE coated.
Certificate : 3.1
Thread : UNC in accordance with ASME B1.1.
2.4.5 Gaskets
Material : Neoprene.
Certificate : 2.1.
2.5 AUSTENITIC STAINLESS STEEL PIPING CLASS
15SNOTE 1 AND 2, 15SHNOTE 1 AND 2 , 500SNOTE 1 AND 2 AND 3
2.5.1 Pipes (Seamless)
Material : ASTM A312 Grade TP316L.
Certificate : 3.1
2.5.2 Flanges
Material : ASTM A182 Grade F316L
Certificate : 3.1
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2.5.3 Tee's, Elbows, Reducers (seamless)
Base Material : ASTM A312 Grade TP316L or approved equal in
accordance with NEN-EN 13480-2.
Certificate : 3.1
Manufacturing Code : ASTM A403 Grade WP316L
2.5.4 Caps, (manufactured from plate)
Base Material : ASTM A240 Grade Tp 316L
Certificate : 3.1
Manufacturing Code : ASTM A403 Grade WP316L
2.5.5 Forged Fittings (O-lets, Couplings, Plugs, Unions, Forged Caps, etc.) note 4
Material : ASTM A182 Grade F316L
Certificate : 3.1
2.5.6 Valves
Material : Stainless Steel Type 316L
Certificate : 3.1
2.5.7 Stud Bolts/Nuts ((for pipe flanges only)
Material : ASTM A320 Grade L7/ASTM A194 Grade 7,
Aluminium plated and PTFE coated.
Certificate : 3.1
Thread : UNC in accordance with ASME B1.1.
2.5.8 Gaskets
Class 15S : Non-Asbestos.
Class 15SH : Spiral Wound
Certificate : 2.1.
Class 500S : Oval Ring, 316L, Maximum Hardness 160 HB.
Certificate : 3.1, material grade and heatnumber marked on ring.
2.5.9 Spectacles, Blinds and Spacers
Material : ASTM A240 Grade TP316L
Certificate : 3.1
Note 1. Material grade in Class 15S, Class 15SH and Class 500S shall be 316L, however,
Class 250DS is preferred over Class 500S.
Note 2. All material specified as stainless steel 316L shall be dual certified (Chemical
composition according AISI 316L and mechanical properties according AISI 316).
Note 3. For tubing use ASTM B677 grade TP 904-L.
Note 4: No unions in Class 500S, flanges are preferred.
2.6 PARTICULAR MATERIAL APPRAISALS (PMA’S)
PMA’s, summarised below, are attached in Appendix II.
Where indicated, Supplier shall ensure compliance with the specified additional requirements.
PMA ref no.: A350 Gr.LF2 Cl.1 rev 3
PMA ref no,: A420 WPL6 rev 3
PMA ref no,: A333 Gr 6 rev 3
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Specification 503 rev. 18 Page 14 of 151
3.0 MATERIAL SPECIFICATIONS AND TESTING REQUIREMENTS FOR PIPES,
FITTINGS AND VALVES FOR LOW TEMPERATURE CARBON STEEL
3.1 GENERAL REQUIREMENTS
Materials subject to the approval of the Notified Body shall comply with all requirements and
stipulations dictated by the PED and the relevant harmonised material standards.
In accordance with Directive 2014/68/EU, involvement of the NoBo for piping is required when
classified in Category II and III.
The classification shall be based on the medium (and phase), the nominal diameter and the max.
allowable pressure.
The following table provides the minimum sizes per category that may be subject to NoBo
approval.
SIZES SUBJECT TO NoBo APPROVAL
Piping
Class
Max.
Design
Pressure
Barg
Gas Service a) Liquid Service b)
Group 1
(Table 6)
Group 2
(Table 7)
Group 1
(Table 8)
Group 2
(Table 9)
II III II III
15 19.7 3" 8"
See N
ote
belo
w
6"
Cate
go
ry III o
nly
ap
plica
ble
if
pre
ssu
re e
xceed
s 500 b
arg
See N
ote
belo
w
15H 19.7 3" 8" 6"
15C 19.7 3" 8" 6"
15U 19.7 3" 8" 6"
30 51.0 1 ½" 6" 1 ½"
30W 51.0 1 ½" 6" 1 ½"
30H 51.0 1 ½" 6" 1 ½"
30U 51.0 1 ½" 6" 1 ½"
60 102.1 1 ½" 6" 1 ½"
60H 102.1 1 ½" 6" 1 ½"
90 153.1 1 ½" 6" 1 ½"
90H 153.1 1 ½" 6" 1 ½"
150 250 1 ½" 6" 1 ½"
250 425.5 1 ½" 6" 1 ½"
15S 19.0 3" 8" 6"
15SH 19.0 3" 8" 6"
500S 345 1 ½" 6" 1 ½"
aGasses: gasses, liquefied gasses, gasses dissolved under pressure, vapours and those liquids
whose vapour pressure at the maximum allowable temperature is greater than 0,5 bar above
normal atmospheric pressure of 1,013 bar (1013 mbar). bLiquids having a vapour pressure at the maximum allowable temperature of not more than 0,5
bar above normal atmospheric pressure of 1,013 bar (1013 mbar).
Note: As a conservative approach, group 2 liquid is not considered and covered under group 1.
Smaller branches of these lines up to the first blockvalve shall also be subject to approval of the
Notified Body.
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The extent of material examination shall be as per relevant material section.
For all butt weld end fittings, Supplier shall confirm compliance with Company specification 505
for dimensional requirements of butt weld ends fittings’.
It is emphasised that only major points are highlighted in this specification. In case of conflict
and/or additional requirements not covered in this specification, the most conservative
requirements will be binding.
Materials not listed in this specification can only be used when:
The materials are in accordance with harmonised material standards.
A Particular Material Appraisal is prepared and approved by the NoBo.
In all cases, acceptance by company is required.
All materials, including the certificates, shall be selected from approved material specifications
as specified in:
Codes and Standards:
NEN-EN 10028-1 Flat products made of steel for Pressure Purposes. Part 1:
General requirements.
NEN-EN 10028-3 Flat products made of steel for Pressure Purposes. Part 3:
Weldable fine grain steels, normalized.
NEN-EN 10213 Steel castings for pressure purposes.
NEN-EN 10216-1 Seamless steel tubes for pressure purposes – Technical
delivery conditions – Part 1: Non-alloy steel tubes with
specified room temperature properties.
NEN-EN 10216-4 Seamless steel tubes for pressure purposes – Technical
delivery conditions – Part 4 Non-alloy and alloy steel tubes
with specified low temperature properties.
NEN-EN 10216-5 Seamless steel tubes for pressure purposes – Technical
delivery conditions – Part 5: Stainless steel tubes.
NEN-EN 10222-1 Steel forgings for pressure purposes – Part 1: General
requirements for open die forgings.
NEN-EN 10222-4 Steel forgings for pressure purposes – Part 4: Weldable fine
grain steels with high proof strength.
NEN-EN 10222-5 Steel forgings for pressure purposes – Part 5: Martensitic,
austenitic and austenitic-ferritic stainless steels.
NEN-EN-ISO 10893-10 Non-destructive testing of steel tubes
NEN-EN 10253-1 Butt-welding pipe fittings. Wrought carbon steel for general
use and without specific inspection requirements.
NEN-prEN 10253-2 Butt welding pipe fittings – Part 2: Wrought carbon and
ferritic alloy steel with specific inspection requirements.
NEN-EN 10269 Steels and nickel alloys for fasteners with specified elevated
and/or low temperature properties
Company Specifications:
505 - Specification for dimensional requirements of butt weld end fittings.
524 - Specification for coating of threaded fastners.
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3.2 IMPACT TEST
When the material specification prescribes notch ductility testing, this must always be carried
out. Position and orientation of Charpy-V notch impact test pieces according to NEN-EN-ISO
148 or as per relevant material code.
Extent of testing and acceptance criteria as per relevant material standard and EN-13480 part 2
section 4.16 and Annex B. In case of conflict most stringent criteria shall apply.
3.3 PIPES
Minimum Design Temperature: -20°C
Material : ASTM A333 Grade 6, maximum Carbon Content 0.23%.
Compatible with P265 NL according NEN-EN 10216-4.
Certificate : 3.1 and Manufacturer’s Certificate of Conformity as per PED
Annex I, section 4.3
Impact Test : In addition to ASTM standard an extra Impact test @ -40°C
in accordance with NEN-EN 10216-4 and NEN-EN-ISO 148
Ultrasonic Examination : All tubes with NPS 4" and larger shall be subject to a complete
and effective ultrasonic examination in final condition in
longitudinal direction according to EN-10216-4 section 11.11
and EN 10893-10 acceptance level U2 sub.cat.C
Pressure Test : All tubes shall be hydraulically tested.
Test pressures shall be:
Herein:
Re : Yield stress @ 20 °C.
dd : Wall thickness,
De : Outside diameter.
Material Certificate : Materials certificates shall state at least:
- Steel making process.
- Mill's name.
- Charge or batch number.
- Test number.
- Material standard or norm.
- Chemical analysis (ladle).
- Mechanical data, certified by the quality control
department of the pipe manufacturer, which shall be
independent of the production line.
- Temperature of manufacture and type of heat treatment, if
required in the material standard, norm or order.
De
dPtthenbar
De
dIf dd 2
.Re.8702
.Re.8
De
dPtbarthenbar
De
dIf dd 2
.Re.870702
.Re.8
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- Results of examination as mentioned in the material
standard/norm and in additional requirements (if any).
- Dimensions, including wall thickness.
- Number of different samples tested as mentioned in
material standard or norm and in additional requirements
(if any).
Marking : The tubes shall be legibly marked to show:
- Identification symbols for the type of steel.
- The brand of the manufacturer must be a specific mark and
not a combination of standard characters.
- Symbols, letters, or numbers which relate to the
certificates, tubes and (if testing per heat is required) heats
to each other.
- The marks of the inspection body (if applicable).
The marks shall be in such manner that confusion with other
tubes is not possible.
Method of Marking : The marks shall be low stress die-stamped. If stamping is
presenting itself injurious to the quality of the material,
another effective method of marking shall be followed.
In the case of tubes with De 1½" and smaller, the marks may
be shown on the label firmly attached to the bundle or to the
packed quantity of tubes.
Applicable Code : NEN-EN 10216-4, ASME B36.10, NEN-EN 13480, ASME B31.3.
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3.4. WELDING NECK FLANGES
Material : ASTM A350 Gr. LF2 CL.1,
maximum Carbon Content 0.23%.
Compatible with P285NH to NEN-EN 10222-4.
Certificate : 3.1 and Manufacturer’s Certificate of Conformity as per
PED Annex I, section 4.3
Impact Test : In addition to ASTM standard an extra Impact test @ -40°C in
accordance with NEN-EN 10222-4 and NEN-EN-ISO 148
Ultrasonic Examination : Required for thicknesses above 100 mm
Material Certificate : Material certificates shall state at least:
- Steel making process.
- Mill's name.
- Charge or batch number.
- Test number.
- Material standard or norm.
- Chemical analysis (ladle).
- Mechanical data, certified by the quality control
department of the manufacturer, which shall be
independent of the production line.
- Temperature of manufacture and type of heat treatment, if
required in the material standard, norm or order.
- Results of examination as mentioned in the material
standard/norm and in additional requirements (if any).
- Dimensions including wall thickness. Number of different
samples tested as mentioned in material standard or norm
and in additional requirements (if any).
Markings : Each forging shall be legibly marked to show:
- Identification symbols for the type of steel.
- The brand of the manufacturer, this must be a specific
mark and not a combination of standard characters.
- Symbols, letter or numbers which relate the certificates,
forgings and heats to each other.
- The marks of the inspection body (if applicable).
The marks shall be in such manner that confusion with other forgings is not possible.
Method of Marking : The marks shall be low stress die-stamped. If stamping is
presenting itself injurious to the quality of the material,
another effective method of marking shall be followed.
Applicable Code : NEN-EN 10222-4, ASME B 16.5, NEN-EN 13480, ASME B31.3.
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Specification 503 rev. 18 Page 19 of 151
3.5 BLIND FLANGES
Material : ASTM A350 Grade LF2 CL.1, maximum Carbon Content
0.23%. Compatible with P285NH to NEN-EN 10222-4.
Certificate : 3.1 and Manufacturer’s Certificate of Conformity as per
PED Annex I, section 4.3
Impact Test : In addition to ASTM standard an extra Impact test @ -40°C in
accordance with NEN-EN 10222-4 and NEN-EN-ISO 148
Ultrasonic Examination : Required for thicknesses above 100 mm to NEN-EN 10228-3
or NEN-EN 10228-4.
Material Certificate : Material certificates shall state at least:
- Steel making process.
- Mill's name.
- Charge or batch number.
- Test number.
- Material standard or norm.
- Chemical analysis (ladle).
- Mechanical data, certified by the quality control
department of the manufacturer, which shall be
independent of the production line.
- Temperature of manufacture and type of heat treatment, if
required in the material standard, norm or order.
- Results of examination as mentioned in the material
standard/norm and in additional requirements (if any).
Markings : Each forging shall be legibly marked to show:
- Identification symbols for the type of steel.
- The brand of the manufacturer, this must be a specific
mark and not a combination of standard characters.
- Symbols, letters or numbers which relate the certificates,
forgings and heats to each other.
- The marks of the inspection body (if applicable).
The marks shall be in such manner that confusion with other forgings is not possible.
Method of Marking : The marks shall be low stress die-stamped. If stamping is
presenting itself injurious to the quality of the material,
another effective method of marking shall be followed.
Applicable code : NEN-EN 10222-4, ASME B 16.5, NEN-EN 13480, ASME B31.3.
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3.6 SPECTACLES, BLINDS AND SPACERS
Material : ASTM A516 Grade 65
Compatible with P275 NH to NEN-EN 10028-3. Maximum
Carbon Content 0.23%C
Certificate : 3.1 and Manufacturer’s Certificate of Conformity as per
PED Annex I, section 4.3
Impact Test : NEN-EN 10028-3 & NEN-EN-ISO 148
For thickness over 5 mm Impact Test required as follows:
- Charpy “V” Notch.
- Longitudinal axis of the test bar transverse to the direction
of final rolling.
- Three test pieces per heat number.
- Test temperature –46°C.
- Minimum average value 27 Joule.
- One result may be lower than 27 Joule, but not lower than
18.9 Joules.
Material Certificate : Material certificates shall state at least:
- Steel making process.
- Mill's name.
- Charge or batch number.
- Test number.
- Material standard or norm.
- Chemical analyses (ladle).
- Mechanical data, certified by the quality control
department of the manufacturer, which shall be
independent of the production line.
- Temperature of manufacture and type of heat treatment,
if required in the material standard, norm or order.
- Results of examinations as mentioned in the material
standard/norm and in additional requirements (if any).
- Dimensions including wall thickness.
Number of different samples tested as mentioned in
material standard or norm and in additional requirements
(if any).
Markings : Each plate shall be legibly marked to show:
- Identification symbols for the type of steel.
- The brand of the manufacturer, this must be a specific
mark and not a combination of standard characters.
- Symbols, letters or numbers which relate the certificates,
plates and heats to each other.
- The marks of the inspection body (if applicable).
The marks shall be in such manner that confusion with other plates is not possible.
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Method of Marking : The symbols shall be low stress die-stamped such that
they read in the direction of rolling (see below).
1 2 3 (direction of rolling) A B C
If stamping is presenting itself injurious to the quality of the material another effective method of marking shall be followed.
This is always acceptable if WT is smaller than 5 mm.
Applicable Code : NEN-EN 10028-3, API 590, NEN-EN 13480, ASME B31.3.
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Specification 503 rev. 18 Page 22 of 151
3.7 SEAMLESS ELBOWS, TEES, REDUCERS
Manufacturing Code : ASTM 420 Grade WPL 6.
(Compatible with P265 LT to NEN-prEN 10253-2).
Base Material : ASTM A 333 Grade 6 or approved equal in accordance
with NEN-EN 13480-2, maximum Carbon Content 0.23%.
Reference is made to section 3.3
Certificate : 3.1 and Manufacturer’s Certificate of Conformity as per
PED Annex I, section 4.3
Impact Test : In addition to ASTM standard an extra Impact test @ -40°C
in accordance with NEN-EN 10216-4 and NEN-EN-ISO 148
Wet Magnetic Particle : Complete Magnetic Surface examination to ASTM E709 or
equivalent Inspection NEN-EN norm for all fittings. Lineair
indications may not be longer than 2 mm
Additional Examination : Hardness test shall be executed on a minimum of 10%
per size, (unrestricted application) thickness and heat no. of
all fittings.
Maximum allowable value is 197 Brinell or 212 HV 10
Value must be shown on the original product certificate.
Dimensional Requirements : Supplier to confirm each fitting will meet the minimum
dimensional requirements as specified in company
specification 505 ‘specification for dimensional requirements
for butt weld end fittings’.
Manufacturer : Design must take place under a certified quality system based
on ISO 9001. The manufacturer must take place under a
certified quality system based on ISO 9001.
An accredited certification body must perform the
certification. The type of appurtenance must fall within the
scope of the certification.
Material Certificate : Materials certificates shall state at least:
- Steel making process.
- Mill's name.
- Charge or batch number.
- Test number.
- Material standard or norm.
- Chemical analyses (ladle).
- Mechanical data, certified by the quality control
department of the manufacturer, which shall be
independent of the production line.
- Temperature of manufacture and type of heat treatment,
if required in the material standard, norm or order.
- Results of examination as mentioned in the material
standard/norm and in additional requirements (if any).
- Dimensions including wall thickness.
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- Number of different samples tested as mentioned in
material standard or norm and in additional requirements
(if any).
Markings : Each fitting shall be legibly marked to show:
- Identification symbols for the type of steel.
The brand of the manufacturer, this must be a specific
mark and not a combination of standard characters.
- Symbols, letters or numbers which relate the certificates,
and (if testing per heat is required) heats to each other.
- The marks of the inspection body (if applicable).
- Mark showing surface examination.
The marks shall be chosen such that confusion with other
fittings is not possible.
Method of Marking : The marks shall be low stress die-stamped. If stamping is
presenting itself injurious to the quality of the material,
another effective method of marking shall be followed.
Applicable Code : NEN-prEN 10253-2, ASME B 16.9, NEN-EN 13480, ASME B31.3
and BPV Code, Section VIII, Division 1 relevant section, where
indicated in the ASME B31.3.
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3.8 CAPS (HEADS) (MANUFACTURED FROM PLATE)
Manufacturing Code : ASTM A420 Grade WPL6.
Compatible with P275 NH to NEN-EN 10028-3
Base Material : ASTM A516 Grade 65, maximum Carbon Content 0.23%.
Reference is made to section 3.6.
Certificate : 3.1 and Manufacturer’s Certificate of Conformity as per
PED Annex I,section 4.3
Impact Test for Base Material : See section 3.6
Wet Magnetic Particle : Complete Magnetic Surface examination to ASTM E709 or
equivalent Inspection NEN-EN norm for all fittings. Lineair
indications may not be longer than 2 mm.
Additional Examination : Hardness test shall be executed on a minimum of 10% per
size, (unrestricted application) thickness and heat no. of all
fittings.
Maximum allowable value is 197 Brinell or 212 HV 10.
Value must be shown on the original product certificate.
Dimensional Requirements : Supplier to confirm each fitting will meet the minimum
dimensional requirements as specified in company
specification 505 ‘specification for dimensional requirements
for butt weld end fittings’.
Material Certificate : Materials certificates shall state at least:
- Steel making process.
- Mill's name.
- Charge or batch number.
- Test number.
- Materials standard or norm.
- Chemical analysis (ladle).
- Mechanical data, certified by the quality control
department of the manufacturer, which shall be
independent of the production line.
- Temperature of manufacture and type of heat treatment,
if required in the material standard, norm or order.
- Results of examination as mentioned in the material
standard/norm and in additional requirements (if any)
- Dimensions including wall thickness.
- Number of different samples tested as mentioned in
material standard or norm and in additional requirements
(if any).
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Markings : Each cap shall be legibly marked to show:
- Designation of the material size, pressure, schedule umber
etc.
- The brand of the manufacturer, this must be a specific
mark and not a combination of standard characters.
- Symbols, letters or numbers which relate the certificates,
and cap to each other.
- A mark showing that the surface examination has been
passed successfully.
Method of Marking : The marks shall be low stress die-stamped. If stamping is
presenting itself injurious to the quality of the caps, another
effective method of marking shall be followed.
Applicable Code : NEN-EN 10253-2, ASME B 16.9, NEN-EN 13480, ASME B31.3
and BPV Code, Section VIII, Division 1 relevant section, where
indicated in the ASME B31.3.
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3.9 FORGED BRANCH CONNECTIONS (WELDOLETS, THREADOLETS, ELBOWLETS ETC.) AND
FITTINGS (COUPLINGS, PLUGS, UNIONS, ETC.)
Material : ASTM A350 Grade LF2 CL.1, maximum Carbon Content
0.23%. (compatible with P 285 NH to NEN-EN 10222-4).
Certificate : 3.1 and Manufacturer’s Certificate of Conformity as per
PED Annex I, section 4.3
Impact Test : In addition to ASTM standard extra Impact test @ -40°C in
accordance with NEN-EN 10222-4 and NEN-EN-ISO 148
Ultrasonic Examination : Required for thicknesses above 100 mm to NEN-EN 10228-3
or NEN-EN 10228-4.
Material Certificate : Materials certificates shall state at least:
- Steel making process.
- Mill's name.
- Charge or batch number.
- Test number.
- Material standard or norm.
- Chemical analysis (ladle).
- Mechanical data, certified by the quality control
department of the manufacturer, which shall be
independent of the production line.
- Temperature of manufacture and type of heat treatment,
if required in the material standard, nor or order.
- Results of examination as mentioned in the material
standard/norm and in additional requirements (if any).
- Dimensions including wall thickness.
- Number of different samples tested as mentioned in
material standard or norm and in additional requirements
(if any).
Marking : Each forging shall be legibly marked to show:
- Identification symbols for the type of steel.
- The brand of the manufacturer, this must be a specific
mark and not a combination of standard characters.
- Symbols, letters or numbers which relate the certificates,
forgings and heat to each other.
- The marks of the inspection body (if applicable).
The marks shall be chosen such that confusion with other
forgings is not possible.
Method of Marking : The marks shall be low stress die-stamped. If stamping is
presenting itself injurious to the quality of the forging another
effective method of marking shall be followed.
Applicable Code : NEN-EN 10222-4, Bonny Forge Standard or equal for olet
fittings, ASME B16.11, NEN-EN 13480, ASME B31.3.
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Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 27 of 151
3.10 STUD BOLTS & NUTS (FOR FLANGE CONNECTIONS ONLY)
Standards : NEN-EN 10269, ASME B 18.2.1, ASME B 18.2.2., ASME B1.1.
Threads : for D=1" and smaller UNC
for D=1.1/8" and larger 8UN
Bolts
Material : ASTM A320 Grade L7 for D=smaller than 2½".
Compatible to 42CrMo4 to EN 10269
ASTM A320 Grade 43 for D= 2½"or larger.
Certificate : 3.1
Impact Test : Impact test at low temperature to NEN-EN 10269 and in
accordance with NEN-EN-ISO 148
Wet Magnetic Particle : Required for D larger than 2" (51 mm).
Inspection
Nuts
Material : ASTM A194 Grade 7.
Certificate : 3.1
Impact Test : Impact test at low temperature to NEN-EN 10269 and in
accordance with NEN-EN-ISO 148
Bolts & Nuts
Coating : Aluminium plated and PTFE coated to company specification
524 ‘specification for coating of threaded fastners’.
Material Certificate : Material Certificates shall state at least:
- Steel making process.
- Mill's name.
- Charge or batch number.
- Test number.
- Material standard or norm.
- Chemical analysis (ladle).
- Mechanical data, certified by the quality control
department of the manufacturer, which shall be
independent of the production line.
- Temperature of manufacturer and type of heat treatment,
if required in the material standard, norm or order.
- Results of examinations as mentioned in the material
standard/norm and in additional requirements (if any).
- Dimensions.
- Number of different samples tested as mentioned in
material standard or norm and in additional requirements
(if any).
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Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 28 of 151
Markings : Bolts, nuts and bars intended for the manufacture thereof
shall be legibly marked to show:
- Identification symbols for the type of steel.
- The brand of the manufacturer, this must be a specific
mark and not a combination of standard characters.
Additional requirements for bolts with diameter larger than 2"
(51mm) as follows:
- Symbols, letters or numbers which relate the certificates,
heats and product to each other.
- The marks of the inspection body (if applicable).
The marks shall be chosen such that confusion with other
bolts, nuts and bars is impossible.
Method of Marking : The marks shall be low stress die-stamped.
In the case of bar stock with diameter smaller than 26 mm the
marks may be shown in a label firmly attached to the packed
quantity of bars.
Applicable Code : NEN-EN 10269, ASME B 18.2.1 & B 18.2.2, NEN-EN 13480,
ASME B31.3. For lengths reference is made to ASME B 16.5.
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Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 29 of 151
3.11 CASTINGS
Material : ASTM A352 Grade LCC, maximum Carbon Content 0.25%.
Closest equivalent is: G20Mn5 to Table 2 NEN-EN 10213.
Certificate : 3.1 and Manufacturer’s Certificate of Conformity as per
PED Annex I, section 4.3
Impact Test : Impact test @ -40°C in accordance with NEN-EN 10213
Table 4 and NEN-EN-ISO 148
Other Tests and Examinations : After the last heat treatment the casting shall be examined for
surface discontinuities and for internal defects. The
examination for surface discontinuities can be either magnetic
particle inspection or liquid penetrant inspection and shall be
in accordance with ASTM A703 supplimentary requirements
S4 or S6. The examinataion for internal defects shall be either
radiographic inspection or ultrasonic inspection and shall be
in accordance with ASTM A703 supplimentary requirements
S5 opr S7.
Material Certificate : Material Certificates shall state at least:
- Material standard or norm.
- Charge or batch number.
- Chemical analysis of each charge.
- Number, dimensions and types of parts.
- Type and temperature of heat treatments.
- Mechanical data.
- Surface inspection.
- Results of examinations.
Marking : Each casting shall be legibly marked to show:
- Identification symbols for the type of steel.
- The brand of the manufacturer must be a specific mark and
not a combination of characters.
- Symbols, letters and numbers which relate the certificates,
castings and heats to each other.
- The marks of the inspection body (if applicable).
The marks shall be chosen such that confusion with other
castings is not possible.
Method of Marking : The marks shall be permanent, for instance, by means of low
stress die-stamping or casting.
Applicable Code : NEN-EN 10213 in conjunction with relevant Valve design code.
Note 1. Repair of base material can only be done in accordance with repair procedures
approved by Company.
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Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 30 of 151
3.12 VALVES, APPURTENANCES
Material : Only materials of which specifications have been accepted
shall be used.
Certificate : For the base material of the pressure containing parts the
certificate required shall be according to relevant material
section. For the finished valve, required certificate shall be 3.1
and an EC Declaration of Conformity
Impact Test : As per relevant material section in this specification.
Pressure Test : Before application of any protective coating, the valves must
be subjected to a pressure test in accordance with the
applicable valve specification.
Other Tests and Examinations : Valves shall be fire safe in accordance with the applicable
specification.
Manufacturer : Design must take place under a certified quality system based
on ISO 9001. The manufacture must take place under a
certified quality system based on ISO 9001.
An accredited certification body must perform the
certification. The type of appurtenance must fall within the
scope of the certification.
Material Certificate : The data to be included in the certificate for the finished valve:
- Manufacturer's name and mark.
- Type of valve.
- Nominal pressure and size.
- Material designation of the pressure parts (body, cover,
etc.) with unequivocal, verifiable references to one or more
attached material certificates.
- Number of valve bodies to which certificate applies.
- Mark by which valve can be related to certificate.
- Pressure test standard (if applicable).
- CE marking shall be applied together with a declaration of
conformity, all in accordance with the requirements of PED
2014/68/EU.
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Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 31 of 151
Marking : Valves and appurtenances shall be legibly marked in a
permanent way to show at least:
- The brand of the manufacturer.
- Nominal size.
- Nominal pressure.
- Identification symbols for the type of steel.
- Symbols, letters or numbers which relate certificates and
valves to each other, supplier shall ensure that these shall
also be legable after coating.
- The CE mark and identification number of the Notified
Body (if applicable).
- Non destructive tests carried out.
- A fixed Stainless Steel 316 tagplate with valve tag number.
Applicable Code : ASME B16.34, API 6D, BS5351, BS6755, part 2, API 607, API 6FA.
Note 1. Repair of base material can only be done in accordance with repair
procedures approved by Company.
Note 2. Levers shall not have plastic coatings or sharp edges.
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Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 32 of 151
4.0 PIPING CLASSIFICATION INDEX
Specification
Piping Class Nominal Service Rating Service Symbol
15 ASME 150 1, 6, 7, 8, 9, 11, 12, 13
15H ASME
150 2,6
15C ASME 150 1
15U ASME 150 3, 4
15UK ASME 150 4
15UP NP 10 5
15S ASME 150 1, 4, 5
15SH ASME 150 1, 6
30 ASME 300 1, 6
30W ASME 300 1, 6
30H ASME 300 2, 6
30U ASME 300 3
60 ASME 600 1, 7, 8
60H ASME 600 1, 7, 8
90 ASME 900 1, 6, 7, 8, 9
90H ASME 900 1, 2
150 ASME 1500 1
250 ASME 2500 1, 6, 7, 8, 9
500S SS Tubing 7, 8
4.1 SERVICE SYMBOLS FLOW MEDIUM
1 Hydrocarbons, Fuel gas.
2 Thermal Oil.
3 Air, all Temperatures.
4 Sea Water, Firewater, Sewage.
5 Potable Water.
6 Glycol.
7 Methanol.
8 Corrosion Inhibitor.
9 Produced Water.
10 Hydraulic Oil.
11 Diesel.
12 Hot water/Anti Freeze Mix
13 Nitrogen
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Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 33 of 151
4.2 LINE NUMBERING CODE
The line number shall contain the following data, e.g.:
6 (15 - 1 - C - 3) T
Insulation class (see linelist).
Line sequential number.
Option rectifier (see linelist).
Product identifier for fluid in pipe.
Piping Specification Number (Class).
Nominal pipe size in inches.
4.3 PRESSURE/TEMPERATURE LIMITS
Unless required for process reasons, maximum pressure/temperature limits shall not be used in
the line list. Intermediate pressures and temperatures may be determined by linear
interpolation.
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Class 15
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 34 of 151
5.0 PIPING SPECIFICATIONS
5.1 PIPING SPECIFICATION CLASS 15
ASME 150 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Services in Line Number
Hydrocarbons 1
Glycol 6
Methanol 7
Corrosion Inhibitor 8
Produced Water 9
Diesel 11
Hot Water / Anti Freeze Mix 12
Nitrogen 13
Materials according to Section 2.1, 2.2 and 3.0
Pressure/Temperature Limits (ASME 150, Carbon Steel according Material Group 1.1)
Temperature °C -20/38 50 95
Pressure Barg 19.7 19.3 17.9
PIPE
Material Size Description
ASTM A106 Grade B ½" - 1"(note 8) Schedule XS/80, Seamless.
ASTM A333 Grade 6 1½"(note 8) Schedule XS/80, Seamless.
ASTM A333 Grade 6 2" - 10" Schedule STD/40, Seamless.
ASTM A333 Grade 6 12" - 24" Standard Weight, Seamless.
FITTINGS
Elbows, Tees, Nipples, and Reducers
Base Material Size Description
ASTM A105N 1" and smaller 3000 lb, Threaded.
ASTM A350 Grade LF2 1½" 3000 lb, Threaded.
CL.1
A106 Grade B ½" - 1"(note 8) Butt Weld (Weld End tapered to
ASTM A333 Grade 6 1½"- 24" (Note 8) match pipe schedule).
See specification 505 for
dimensional requirements
Unions, Couplings
Material Size Description
ASTM A105N 1" and smaller 3000 lb, Threaded.
ASTM A350 Grade LF2 CL.1 1½" 3000 lb, Threaded.
CL.1
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Class 15
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 35 of 151
Flanges
Material Size Description
ASTM A105N 1" and smaller ASME 150, RF Threaded (see Note 4).
ASTM A350 1½" ASME 150, RF Threaded (see Note 4).
Grade LF2 Cl.1
ASTM A105N 1" and smaller (note 8) ASME 150, RF, WN, bore to match ID of pipe
ASTM A350 1½" - 24" ASME 150, RF, WN, bore to match ID of pipe
Grade LF2 Cl.1 (note 8)
Studbolts and Nuts
Material Size Description
ASTM A320 Grade L7/ All sizes Stud Bolts and Nuts Aluminium plated
ASTM A194 Grade 7 and PTFE coated.
Gaskets All sizes 1,5 mm thick Non-Asbestos Ring Gasket.
Branch Connections See Appendix I Sheet 1B.
Closures (Plugs, Caps and Blind Flanges)
Material Size Description
ASTM A105N ½" - 1” 6000 lb Hex Head Plugs.
ASTM A350 Grade LF2 1½" 6000 lb Hex Head Plugs.
CL.1
ASTM A516 Grade 65 / ½" – 24" Weld Caps or Blind Flanges. (note 8)
ASTM A350 Grade LF2
CL.1
VALVES (See Notes)
Ball Valves Size Description
Use for Instruments, ½" - 1½" Class 800, Threaded Ends, Female NPT, Reduced Bore,
Lever Operated.
Vents & Drains Material ASTM A350 Grade LF2 CL.1
Tag nr: V-711
(Note 9, 11) ½" - 2" ASME 150, Flanged Ends, RF, Reduced Bore, Lever
Operated.
Material ASTM A350 Grade LF2 CL.1/ASTM A352
Grade LCC
Tag nr: V-775
½" - 1" ASME 150, Flanged Ends, RF,
Full Bore, Lever Operated.
Material ASTM A216 Grade WCB/ ASTM A105
Tag nr: V-774
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Class 15
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 36 of 151
1½" ASME 150, Flanged Ends, RF,
Full Bore, Lever Operated.
Material ASTM A350 Grade LF2 CL.1/ ASTM A352
Grade LCC
Tag nr: V-774
2" - 6" ASME 150, Flanged Ends, RF,
Full Bore, Lever Operated.
Material ASTM A350 Grade LF2 CL.1/ASTM A352
Grade LCC
Tag nr: V-721
3" - 8" ASME 150, Flanged Ends, RF,
Reduced Bore, Lever Operated.
Material ASTM A350 Grade LF2 CL.1/ASTM A352
Grade LCC
Tag nr: V-719
Ball Valves
8" - 24" ASME 150, Flanged Ends, RF,
Full Bore, Gear Operated.
Material ASTM A350 Grade LF2 CL.1/ASTM A352
Grade LCC
Tag nr: V-722
10" –24" ASME 150, Flanged Ends, RF,
Reduced Bore, Gear Operated.
Material ASTM A350 Grade LF2 CL.1/ASTM A352
Grade LCC
Tag nr: V-720
Globe Valves Size Description
½" - 1" Class 800, Threaded Ends, OS&Y,
Bolted Bonnet.
Material ASTM A105N/ASTM A216 Grade WCB
Tag nr: V-415
1½" Class 800, Threaded Ends, OS&Y,
Bolted Bonnet.
Material ASTM A350 Grade LF2 CL.1/ASTM A352
Grade LCC
Tag nr: V-415
(Note 9) ½" - 1" ASME 150, Flanged Ends, RF, OS&Y
Bolted Bonnet.
Material ASTM A105N/ ASTM A216 Grade WCB
Tag nr: V-417
(Note 9) 1½" ASME 150, Flanged Ends, RF, OS&Y
Bolted Bonnet.
Material ASTM A350 Grade LF2 CL.1/ASTM A352
Grade LCC
Tag nr: V-417
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Class 15
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 37 of 151
2" - 10" ASME 150, Flanged Ends, RF,
Basic Trim OS&Y.
Material ASTM A350 Grade LF2 CL.1/ASTM A352
Grade LCC
Tag nr: V-445
Check Valves
Horizontal or ½" - 1½" Class 800, Threaded Ends, ΔP=0.5 barg
Vertical Up Flow Piston or Ball Spring Type, Stellite Trim,
Material ASTM A350 Grade LF2 CL.1/ASTM A352
Grade LCC
Tag nr: V-510
Horizontal or ½" - 1" ASME 150, Flanged ends, RF, Piston or Ball
Vertical Up Flow Spring Type, ΔP=0.5 barg
(Note 9) Material: ASTM A105N/
ASTM A216 Grade WCB
Tag nr: V-518
Check Valves
Horizontal or 1½" ASME 150, Flanged ends, RF, Piston or Ball
Vertical Up Flow Spring Type, ΔP=0.5 barg
(Note 9) Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-518
Horizontal or 2" - 24" ASME 150, Duo Disc Design,
Vertical Up Flow Wafer Type, RF Facing.
Material ASTM A350 Grade LF2 Cl.1/
ASTM A352 Grade LCC
Tag nr: V-515
Needle Valves
For P.I.'s only ½" 6000 lb, Stainless Steel, Gauge Valve,
NPT Male Inlet x 3 NPT Female Outlets.
Material AISI 316L
Tag nr: V-641
For P.I. Drains ½" 6000 lb, Stainless Steel, NPT Male Inlet
x NPT Female Outlet.
Material: AISI 316L
Tag nr: V-642
(Note 7) ½" – 1" ASME 150, monoflange (needle valve)
Ends RF/NPT ½"
Material ASTM A350 Grade LF2 CL.1/ASTM A352
Grade LCC
Tag nr: V-615
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Class 15
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 38 of 151
Note 1 For power operated valve reduced bore use V-719-P (Size 1" and above).
Note 2. For power operated valve full bore use V-721-P (Size 1" and above).
Note 3 The valve tag number for power operated valve shall be extended with P,
e.g. V-719-P.
Note 4. For valves fitted with an interlock device the tag number shall be extended with M,
e.g. V-719-M.
Note 5. Full bore valves to be used for relief service or critical service only.
Note 6. Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 530PA719030 and hydraulic operated as e.g. 530PH719030.
Note 7 Monoflange valve to be used as block valve between piping and instruments.
Note 8. Buttweld fittings are preferred, threaded fittings to be used sparingly and not at
all in flammable liquid lines.
Note 9 To be used for methanol system only
Note 10 Tubing used for fluid transport in class 15 systems shall be designated TUB15
on P&ID.
Note 11 To be used for connections on equipment only.
Note 12 Lokring fittings may be used to replace field welds in brownfield projects.
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Class 15H
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 39 of 151
5.2 PIPING SPECIFICATION CLASS 15H
ASME 150 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Services in Line Number
Thermal oil 2
Glycol 6
Materials according to Section 2.1, 2.2 and 3.0
Pressure/Temperature Limits (ASME 150, Carbon Steel according Material Group 1.1)
Temperature °C -20/38 50 100 150 200 220
Pressure Barg 19.7 19.3 17.7 15.8 13.9 13.2
PIPE
Material Size Description
ASTM A106 Grade B ½" - 1" Schedule XS/80, Seamless.
ASTM A333 Grade 6 1½" Schedule XS/80, Seamless.
ASTM A333 Grade 6 2" - 10" Schedule STD/40, Seamless.
ASTM A333 Grade 6 12" - 24" Standard Weight, Seamless.
FITTINGS (Note 8)
Elbows, Tees, Nipples, and Reducers
Base Material Size Description
ASTM A105N 1" and smaller 3000 lb, Threaded.
ASTM A350 Grade LF2 CL.1 1½" 3000 lb, Threaded.
A106 Grade B ½" - 1" (note 9) Butt Weld (Weld End tapered to
ASTM A333 Grade 6 1½"- 24" match pipe schedule).
See specification 505 for dimensional
requirements.
Unions, Couplings
Material Size Description
ASTM A105N 1" and smaller 3000 lb, Threaded.
ASTM A350 Grade LF2 CL.1 1½" 3000 lb, Threaded.
Flanges
Material Size Description
ASTM A105N 1" and smaller ASME 150, RF Threaded (see Note 4).
ASTM A350 1½" ASME 150, RF Threaded (see Note 4).
Grade LF2 Cl.1
ASTM A105N 1" and smaller ASME 150, RF, WN, bore to match ID
of pipe. (note 8)
ASTM A350 1½" - 24" ASME 150, RF, WN, bore to match ID
Grade LF2 Cl.1 of pipe.
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Class 15H
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 40 of 151
Studbolts and Nuts
Material Size Description
ASTM A320 Grade L7/ All sizes Stud Bolts and Nuts Aluminium plated
ASTM A194 Grade 7 and PTFE coated.
Gaskets All sizes Spiral Wound, 4.5 mm thick, 316L SS
metal strip, non Asbestos filler material,
SS Steel external centring ring.
Branch Connections See Appendix I Sheet 20B.
Closures (Plugs, Caps and Blind Flanges)
Material Size Description
ASTM A105N ½" - 1” 6000 lb Hex Head Plugs.
ASTM A350 Grade LF2 CL.1 1½" 6000 lb Hex Head Plugs.
ASTM A516 Grade 65 / ½" – 24" Weld Caps or Blind Flanges.
ASTM A350 Grade LF2 CL.1
VALVES (See Notes)
Ball Valves Size Description
Use for Instruments, ½" - 1½" Class 800, Threaded Ends, Female NPT,
Reduced Bore, Lever Operated.
Vents & Drains Material ASTM A350 Grade LF2 CL.1
Tag nr: V-711-H
(Note 10) ½" - 2" ASME 150, Flanged Ends, RF, Reduced
Bore, Lever Operated.
Material ASTM A350 Grade LF2
CL.1/ASTM A352 Grade LCC
Tag nr: V-775-H
½" - 1" ASME 150, Flanged Ends, RF,
Full Bore, Lever Operated.
Material ASTM A216 Grade WCB/
ASTM A105
Tag nr: V-774-H
1½" ASME 150, Flanged Ends, RF,
Full Bore, Lever Operated.
Material ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-774-H
Size Description
2" - 6" ASME 150, Flanged Ends, RF,
Full Bore, Lever Operated.
Material ASTM A350 Grade LF2
CL.1/ASTM A352 Grade LCC
Tag nr: V-721-H
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Class 15H
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 41 of 151
Size Description
3" - 8" ASME 150, Flanged Ends, RF,
Reduced Bore, Lever Operated.
Material ASTM A350 Grade LF2
CL.1/ASTM A352 Grade LCC
Tag nr: V-719-H
8" - 24" ASME 150, Flanged Ends, RF,
Full Bore, Gear Operated.
Material ASTM A350 Grade LF2
CL.1/ASTM A352 Grade LCC
Tag nr: V-722-H
Ball Valves Size Description
10" –24" ASME 150, Flanged Ends, RF,
Reduced Bore, Gear Operated.
Material ASTM A350 Grade LF2
CL.1/ASTM A352 Grade LCC
Tag nr: V-720-H
Globe Valves Size Description
½" - 1" Class 800, Threaded Ends, OS&Y,
Bolted Bonnet.
Material ASTM A105N/ASTM A216
Grade WCB
Tag nr: V-415-H
1½" Class 800, Threaded Ends, OS&Y,
Bolted Bonnet.
Material ASTM A350 Grade LF2
CL.1/ASTM A352 Grade LCC
Tag nr: V-415-H
2" - 10" ASME 150, Flanged Ends, RF,
Basic Trim OS&Y.
Material ASTM A350 Grade LF2
CL.1/ASTM A352 Grade LCC
Tag nr: V-445-H
Check Valves
Horizontal or ½" - 1½" Class 800, Threaded Ends, ΔP=0.5 barg
Vertical Up Flow Piston or Ball Spring Type, Stellite Trim,
Material ASTM A350 Grade LF2
CL.1/ASTM A352 Grade LCC
Tag nr: V-510-H
Horizontal or 2" - 24" ASME 150, Duo Disc Design,
Vertical Up Flow Wafer Type, RF Facing.
Material ASTM A350 Grade LF2 Cl.1/
ASTM A352 Grade LCC
Tag nr: V-515-H
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Class 15H
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 42 of 151
Needle Valves Size Description
For P.I.'s only ½" 6000 lb, Stainless Steel, Gauge Valve,
NPT Male Inlet x 3 NPT Female Outlets.
Material AISI 316L
Tag nr: V-641-H
For P.I. Drains ½" 6000 lb, Stainless Steel, NPT Male Inlet
x NPT Female Outlet.
Material: AISI 316L
Tag nr: V-642-H
(Note 7) ½" – 1" ASME 150, monoflange (needle valve)
Ends RF/NPT ½"
Material ASTM A350 Grade LF2
CL.1/ASTM A352 Grade LCC
Tag nr: V-615-H
Note 1. For power operated valve reduced bore use V-719-HP (Size 1" and above).
Note 2. For power operated valve full bore use V-721-HP (Size 1" and above).
Note 3. The valve tag number for power operated valve shall be
extended with P, e.g. V-719-HP.
Note 4. For valves fitted with an interlock device the tag number shall be
extended with M, e.g. V-719-HM.
Note 5. Full bore valves to be used for relief service or critical service only.
Note 6. Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 53HPA719030 and Hydraulic operated as e.g. 53HPH719030.
Note 7. Monoflange valve to be used as block valve between piping and instruments.
Note 8. Use specification 505 class 15 for dimensions and calculations for tees, elbows,
reducers and caps for piping class 15H. Class 15H is identical to class 15 except
that it is downrated for pressure and uprated for temperature in accordance
with ASME B16.5a table 2-1.1.
Note 9 Buttweld fittings are preferred, threaded fittings to be used sparingly and not at
all in flammable liquid lines.
Note 10. To be used for connections on equipment only.
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Class 15C
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 43 of 151
5.3 PIPING SPECIFICATION CLASS 15C
ASME 150 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Services in Line Number
Hydrocarbons 1
Material according to Section 2.2 and 3.0
Pressure/Temperature Limits (ASME 150, Carbon Steel according material Group 1.1)
Temperature °C -50/38 50 95
Pressure Barg 19.7 19.3 17.9
PIPE
Material Size Description
ASTM A333 Grade 6 ½" - 1½" Schedule XS/80, Seamless.
2" - 10" Schedule STD/40, Seamless.
12" - 24" Schedule STD, Seamless.
FITTINGS
Elbows, Tees, Nipples, & Reducers
Base Material Size Description
ASTM A333 Grade 6 1½" and smaller 3000 lb, Forged Steel, Threaded.
1" – 24" Butt Weld, Weld End tapered to match
pipe schedule. See specification 505 for
dimensional requirements.
Unions, Couplings
Material Size Description
ASTM A350 1½" and smaller 3000 lb, Forged Steel, Threaded.
Grade LF2 CL.1
Flanges
Material Size Description
ASTM A350 1½" and smaller ASME 150, RF, Threaded (see Note 4).
Grade LF2 CL.1 ½" – 24" ASME 150, RF, WN, bore to ID of pipe.
Stud Bolts & Nuts
Material Size Description
ASTM A320 Grade L7/ All sizes Stud Bolts and Nuts, Aluminium plated
A194 Grade 7 and PTFE coated.
Gaskets
Material Size Description
All sizes 1,5 mm thick Non-Asbestos
Ring Gasket.
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Class 15C
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 44 of 151
Branch Connections See Appendix I Sheet 2B.
Closures (Plugs, Caps and Blind Flanges)
Material Size Description
ASTM A350 Grade LF2 CL.1 ½" - 1½" 6000 lb, Hex Head Plug.
ASTM A516 Grade 65 / 2" – 24" Weld Caps or Blind Flanges.
ASTM A350 Grade LF2 CL.1
VALVES (See Notes)
Ball Valves
Use for Instruments, ½" - 1½" Class 800, Threaded Ends, Female NPT,
Vents & Drains Reduced Bore, Lever Operated.
Material ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-711-LT
½" - 1½" ASME 150, Flanged Ends, RF,
Full Bore, Lever Operated.
Material ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-774-LT
(Note 9) ½" - 1½" ASME 150, Flanged Ends, RF,
Reduced Bore, Lever Operated.
Material ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-775-LT
2" - 6" ASME 150, Flanged Ends, RF,
Full Bore, Lever Operated.
Material ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-721-LT
3" - 8" ASME 150, Flanged Ends, RF,
Reduced Bore, Lever Operated.
Material ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-719-LT
8" - 24" ASME 150, Flanged Ends, RF,
Full Bore, Gear Operated.
Material ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-722-LT
10"- 24" ASME 150, Flanged Ends, RF,
Reduced Bore, Gear Operated.
Material ASTM A350 Grade LF2 CL.1
ASTM A352 Grade LCC
Tag nr: V-720-LT
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Class 15C
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 45 of 151
Globe Valves Size Description
½" - 1½" Class 800, Threaded Ends,
OS&Y, Bolted Bonnet.
Material ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-415-LT
2" - 6" ASME 150, Flanged Ends, RF, OS&Y,
Basic Trim
Material ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-445-LT
Needle Valve
(Note 8) ½" - 1" ASME 150, monoflange (Needle valve)
Ends RF/NPT ½"
Material ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-615-LT
Note 1. For power operated valve reduced bore use V-719-LTP (Size 1" and above).
Note 2. For power operated valve full bore use V-721-LTP (Size 1" and above).
Note 3. The valve tag number for power operated valve shall be
extended with P e.g. V-719-LTP.
Note 4. For valves fitted with an interlock device the tag number shall be
extended with M, e.g. V-719-LTM.
Note 5. Full bore valves to be used for relief service and critical service only.
Note 6. Low temperature valves shall be suitable for -50°C, tag nr i.e. V-722-LT.
Note 7. Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 53LPA721030 and hydraulic operated as e.g. 53LPH721030.
Note 8. Monoflange valve to be used as block valve between piping and instruments.
Note 9. To be used for connection on equipment only.
Note 10. Lokring fittings may be used to replace field welds in brownfield projects.
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Class 15U
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 46 of 151
5.4 PIPING SPECIFICATION CLASS 15U
ASME 150 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Services in Line Number
Utility Air, Instrument Air 3
Seawater, Firewater (wet), Sewage 4
Material according to Sections 2.1, 2.2 and 3.0
Pressure - Temperature Limits (ASME 150, Carbon Steel according Material Group 1.1)
Temperature °C -20/38 50 95
Pressure Barg 19.7 19.3 17.9
PIPE
Material Size Description
ASTM A106 Grade B ½" - 1" Schedule XS/80, Seamless, Hot Dip
Galvanised.
ASTM A333 Grade 6 1½" Schedule XS/80, Seamless, Hot Dip
Galvanised.
ASTM A333 Grade 6 2" - 10" Schedule STD/40, Seamless (Note 5).
FITTINGS
(Note 5)
Elbows, Tees, Nipples, and Reducers
Base Material Size Description
ASTM A105N 1" and smaller 3000 lb, Threaded, Hot Dip Galvanised.
ASTM A350 Grade LF2 CL.1 1½" 3000 lb, Threaded, Hot Dip Galvanised.
ASTM A333 Grade 6 2" – 10" Butt Weld. Weld End tapered to match
pipe schedule. See specification 505 for
dimensional requirements.
Unions, Couplings
Material Size Description
ASTM A105N 1" and smaller 3000 lb, Threaded, Hot Dip Galvanised.
ASTM A350 Grade LF2 CL.1 1½" 3000 lb, Threaded, Hot Dip Galvanised.
Flanges
Material Size Description
ASTM A105N 1" and smaller ASME 150, RF, Threaded, Hot Dip
Galvanised.
ASTM A350 Grade LF2 CL.1 1½" ASME 150, RF, Threaded, Hot Dip
Galvanised.
ASTM A350 Grade LF2 CL.1 ½" – 10" ASME 150, RF WN, bore to match ID of
pipe.
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Class 15U
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 47 of 151
Stud Bolts & Nuts
Material Size Description
ASTMA A320 Grade L7/ All Stud Bolts and Nuts, Aluminium plated
A194 Grade 7 and PTFE coated.
Gaskets
Material Size Description
All 1,5 mm thick Non-Asbestos Ring
Gaskets
Branch Connections See Appendix 1, sheet 3B.
Closures (Plugs, Caps and Blind Flanges)
Material Size Description
ASTM A105N ½" - 1" 6000 lb, Hex Head Plugs, Hot Dip
Galvanized.
ASTM A350 Grade LF2 CL.1 1½" 6000 lb, Hex Head Plugs, Hot Dip
Galvanized.
ASTM A516 Grade 65 / 2" – 10" Weld Caps or Blind Flanges.
ASTM A350 Grade LF2 CL.1
VALVES (See notes)
Ball Valves Size Description
½" - 1½" Class 800, Threaded Ends, Female NPT
Lever Operated.
Material: AISI 316L
Tag nr: V-702
(Note 10) ½" - 1" ASME 150, Flanged Ends, RF,
Full Bore, Lever Operated.
Material: ASTM A105N/ ASTM A216
Grade WCB
Tag nr: V-774
(Note 10) 1½" ASME 150, Flanged Ends, RF,
Full Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1 /
ASTM A352 Grade LCC
Tag nr: V-774
2" - 6" ASME 150, Flanged Ends, RF,
Full Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1 /
ASTM A352 Grade LCC
Tag nr: V-721
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Class 15U
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 48 of 151
Size Description
8" - 10" ASME 150, Flanged Ends, RF,
Full Bore, Gear Operated.
Material: ASTM A350 Grade LF2 CL.1 /
ASTM A352 Grade LCC
Tag nr: V-722
3" - 8" ASME 150, Flanged Ends, RF,
Reduced Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1 /
ASTM A352 Grade LCC
Tag nr: V-719
10" ASME 150, Flanged Ends, RF,
Reduced Bore, Gear Operated.
Material: ASTM A350 Grade LF2 CL.1 /
ASTM A352 Grade LCC
Tag nr: V-720
Angle Valves Size Description
1½" 400Lbs, Bronze ASTM B61 Screwed
ends NPT
Tag nr: V-504
Globe Valves ½" - 1" Class 800, Threaded Ends,
OS&Y, bolted bonnet.
Material: ASTM A105N/ASTM A216
Grade WCB
Tag nr: V-415
1½" Class 800, Threaded Ends,
OS&Y, bolted bonnet.
Material: ASTM A350 Grade LF2
CL.1/ASTM A352 Grade LCC
Tag nr: V-415
2" - 6" ASME 150, Flanged Ends, RF, OS&Y
Material: ASTM A350 Grade LF2
CL.1/ASTM A352 Grade LCC
Tag nr: V-445
Check Valves
For horizontal ½" - 1" Class 800, Piston or Ball spring type,
or vertical up Flow Threaded, Max. delta ΔP= 0.5 barg
Material: ASTM A105N/ASTM A216
Grade WCB
Tag nr: V-507
For horizontal 1½" Class 800, Piston or Ball spring type,
or vertical up Flow Threaded, Max. delta ΔP= 0.5 barg
Material: ASTM A350 Grade LF2
CL.1/ASTM A352 Grade LCC
Tag nr: V-507
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Class 15U
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 49 of 151
For horizontal 2" - 10" ASME 150, Wafer type, RF
or vertical up Flow Facing, Duo Disc Design.
Material: ASTM B148
Grade C.95800 (al-bronze)
Tag nr: V-595
Service Symbol 3 2" - 4" ASME 150, Ball or Piston check,Flanged
For horizontal ends, RF, Max. delta ΔP= 0.5 barg.
or vertical up Flow Material: ASTM A350 Grade LF2
CL.1/ASTM A352 Grade LCC
Tag nr: V-506
Needle Valves
For P.I.'s only ½" 6000 lb, Stainless Steel, Gauge Valve,
NPT Male Inlet x 3 NPT Female Outlets.
Material: AISI 316L
Tag nr: V-641
For P.I. Drains ½" 6000 lb, Stainless Steel, NPT Male
Inlet x NPT Female Outlet.
Material: AISI 316L
Tag nr: V-642
(Note 9) ½" - 1" ASME 150, monoflange (needle valve)
Ends RF/NPT ½"
Material: ASTM A350 Grade LF2
CL.1 /A352 Grade LCC
Tag nr: V-615
Butterfly Valves
(Note 8, 11) 2" - 8" ASME 150, Wafer Type,
RF facing, Lever/ Gear Operated.
Material: ASTM A350 Grade LF2
CL.1/ASTM A352 Grade LCC
Tag nr: V-353
10" ASME 150, Wafer Type,
RF facing, Gear Operated.
Material: ASTM A350 Grade LF2
CL.1/ASTM A352 Grade LCC
Tag nr: V-355
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Class 15U
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 50 of 151
Note 1. For power operated valve reduced bore use V-719-P (Size 1" and above).
Note 2. For power operated valve full bore use V-721-P (Size 1" and above).
Note 3. The valve tag numer for power operated valve shall be
extended with P e.g. V-719-P.
Note 4. For valves fitted with an interlock device the tag number shall be
extended with M, e.g. V-719-M.
Note 5. Pipe and fittings 2" and larger shall be hot dip galvanised after spool fabrication.
Note 6. For V-403 use V-416, for V-502 use V-507.
Note 7. Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 530PA721060 and hydraulic operated as e.g. 530PH721060.
Note 8. Ball valves preferable.
Note 9. Monoflange valve to be used as block valve between piping and instrument.
Note 10. To be used for connection to equipment only.
Note 11. Valves 2" up to and including 4" lever operated. Valves 6" up to and
including 8" gear operated operated.
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Class 15UK
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 51 of 151
5.5 PIPING SPECIFICATION CLASS 15UK
ASME 150 Cu-Ni Corrosion Allowance : 0 mm Design Code : EN 13480
Services Symbol
Services in Line Number
Seawater,
Firewater (dry system) 4
Material according to Section 2.3
Pressure Temperature Limits (ASME 150, Carbon Steel Flanges according Material Group 1.1)
Temperature °C -20/38 50
Pressure Barg 19.7 19.3
PIPE
Material Size Description
ASTM B466 ½" – ND 15 Seamless, OD 16 mm x WT 2.0 mm
EEMUA 144 ¾" – ND 20 Seamless, OD 25 mm x WT 2.0 mm
1" – ND 25 Seamless, OD 30 mm x WT 2.5 mm
1 ¼" – ND 32 Seamless, OD 38 mm x WT 2.5 mm
1 ½" – ND 40 Seamless, OD 44.5 mm x WT 2.5 mm
2" – ND 50 Seamless, OD 57 mm x WT 2.5 mm
3" – ND 80 Seamless, OD 88.9 mm x WT 2.5 mm
4" – ND 100 Seamless, OD 108 mm x WT 3.0 mm
6" – ND 150 Seamless, OD 159 mm x WT 3.5 mm
8" – ND 200 Seamless, OD 219.1 mm x WT 4.5 mm
FITTINGS
Elbows, Tees, Caps and Reducers
Material Size Description
ASTM B466 ½" - 8" Seamless, Butt Weld,
EEMUA 146 weld end to Material pipe schedule.
Flanges
Material Size Description
ASTM A105/B151 1" - 8" CS-Lap Joint Flanges, Class 150#, with
EEMUA 145 CU-NI Inner Flange (Stub-End).
Stud Bolts & Nuts
Material Size Description
ASTM A320 Grade L7/ All Stud Bolts and Nuts, Aluminium plated
A194 Grade 7 and PTFE coated.
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Class 15UK
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 52 of 151
Gaskets Size Description
All 1,5 mm thick Non-Asbestos Ring
Gaskets.
Branch Connections See Appendix I, sheet 4B.
VALVES
Globe Valves Size Description
½" - 2" Class 800, Threaded Ends.
Material: ASTM Leaded Gunmetal
Tag nr: V-859
3" - 8" ASME 150, Flanged Ends, Flat Face.
Material: ASTM Leaded Gunmetal
Tag nr: V-858
1 ½” Threaded angle valve
Material: Bronze
Tag nr: V-504
Check Valves Size Description
For Horizontal or ½" - 2" Class 800, Threaded Ends, Ball Check,
Vertical Up Flow Bolted Bonnet.
Material: ASTM Leaded Gunmetal
Tag nr: V-888
For Horizontal or 2" - 8" ASME 150, Wafer Type, Flat Face,
Vertical Up Flow Duo Disc Design.
Material: ASTM Leaded Gunmetal
Tag nr: V-886
Gate Valves ½" - 2" Class 800, Threaded Ends,
Bolted Bonnet.
Material: Bronze
Tag nr: V-821
3" - 8" ASME 150, Flat Face, Flanged Ends,
Bolted Bonnet.
Material: Bronze
Tag nr: V-823
Butterfly Valves 2" - 8" ASME 150, Wafer Type,
(Note 1) Raised Face, Lever/Gear Operated.
Tag nr: V-365 Material: Bronze
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Class 15UK
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 53 of 151
Sleeve Valves 2" - 8" ASME 150, Flanged Ends, Hand
Operated.
Material: Aluminium Bronze.
Tag nr: V-910
Ball Valves ½" - 1½" Class 800, Threaded Ends, Female NPT,
Lever Operated.
Material: AISI 316L
Tag nr: V-702
Needle Valves 1" ASME 150, monoflange, RF/ NPT ½“.
Monoflange for Material: AISI 316L
PI instr. only Tag nr: V-607
Note 1. Sleeve valves to be preferred.
Note 2. For interlocked valves the tag number shall be extended with M, e.g. V-910-M.
Note 3. The valve tag number for Power operated valve shall be extended with P, e.g. V-
910-P
Note.4 Threaded plugs shall be 316L material as a minimum..
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Class 15S
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 54 of 151
5.6 PIPING SPECIFICATION CLASS 15UP
POLYETHYLENE Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Services in Line Number
Potable Water (Note 1) 5
Material according to Section 2.4
Pressure/Temperature Limits
Temperature °C -10/38 50
Pressure Barg 10.0 10.0
PIPE
Material Size Description
Pipe ½" OD: 20 mm, WT: 2.0 mm, PE, PN 10.
¾" OD: 25 mm, WT: 2.5 mm, PE, PN 10.
1" OD: 32 mm, WT: 3.0 mm, PE, PN 10.
1½" OD: 50 mm, WT: 4.6 mm, PE, PN 10.
2" OD: 63 mm, WT: 5.8 mm, PE, PN 10.
3" OD: 90 mm, WT: 8.2 mm, PE, PN 10.
FITTINGS
Elbows, Tees, Cap 1" - 3" PN 10.
Material Size Description
Reducers with Fusion ½" - 3" PN 10.
Spigot and Socket
Fusion Sockets ½" - 3" PN 10.
Adapter Unions ½" - 3" PN 10.
Union PE,
Socket Fusion Union
Bush and Nut Brass
complete with Gaskets
Lap joint stub end 1" - 3" PN 10 for equipment connections.
Lap joint flange 1" - 3" PP with Steel reinforced, Pressure
Rating,
OD, bolt circle and bolt holes according
ASME B 16.5, Class 150.
Stud Bolts & Nuts All Stud Bolts and Nuts, Aluminium plated
and PTFE coated.
Gaskets ½” – 1½” 4 mm thick EPDM, Flat.
2” - 3” 5 mm thick EPDM, Flat
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Class 15S
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 55 of 151
Closures ½" - ¾" 6000 lb, Forged Steel, Hex Head Plug
(Plugs and Blind Flanges) (Galvanised).
1" - 3" ASME 150, Blind Flange, FF, Carbon
Steel, Galvanised ASME B16.5.
Branch Connections Smaller than Header or Run Size:
Branch Size Header or Run Size Description of Branch
½" - 2" 1" - 3" Use Tees and Reducers.
Branch Connections - Full Size:
All Use Tees.
VALVES
Gate Valves ½" - ¾" Class 800, Threaded Ends, OS&Y.
Material: AISI 316L
Tag nr: V-824
1" - 3" ASME 150, Flanged Ends,
Flat Face, Bolted Bonnet.
Material: Bronze
Tag nr: V-816
Ball Valves ½" - ¾" Class 800, Threaded Ends, Reduced
Bore, Lever Operated.
Material: AISI 316L
Tag nr: V-702
1" - 3" ASME 150, Flanged Ends, Reduced
Bore, RF, Lever Operated.
Material: AISI 316L
Tag nr: V-715
Check Valves
For Horizontal ½" - ¾" Class 800, Threaded Ends, Max. ΔP=0.5
or Vertical Up Flow barg Ball Type.
Material: AISI 316L
Tag nr: V-565
For Horizontal 1" - 1½" ASME 150, Flanged Ends, RF, Ball or
Or Vertical Up Flow Piston Spring Type, Max. ΔP=0.5 barg
Material: AISI 316L
Tag nr: V-591
For Horizontal 2" - 3" ASME 150, Wafer Type, Raised
or Vertical Up Flow Face, Duo Disc design.
Material: AISI 316L
Tag nr: V-508
Note 1. For potable water Class 15S is recommended.
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Class 15S
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 56 of 151
5.7 PIPING SPECIFICATION CLASS 15S
ASME 150 SS Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Services in Line Number
Hydrocarbons 1
Potable Water 5
Seawater, Firewater 4
Materials according to Sections 2.5 and 3.0
Pressure/Temperature Limits (ASME 150, Stainless Steel according Material Group 2.2)
Temperature °C -20/38 50 95
Pressure Barg 19.0 18.4 16.2
PIPE (Note 7)
Base Material Size Description
ASTM A312 ½" - 1½" Schedule 80S, Seamless.
Grade TP316L 2" - 10" Schedule 40S, Seamless.
FITTINGS
Elbows, Tees, Nipples, & Reducers
Material Size Description
ASTM A182 1½” and smaller 3000 lb, Threaded (Note 4).
Grade TP316L
ASTM A312 ½" - 10" Butt Weld, WE tapered to match pipe
Grade TP316L schedule (Note 6). See specification 505
for dimensional requirements.
Flanges
Material Size Description
ASTM A182 ½" - 10" ASME 150, WN RF, bore to match
Grade F316L ID of pipe.
½" - 1½" ASME 150, RF Threaded (Note 4).
Stud Bolts & Nuts
Material Size Description
ASTM A320 All Stud Bolts and Nuts,Aluminium plated
Grade L7/A194 Grade 7 and PTFE coated.
Gaskets
Material Size Description
All 1,5 mm Non-Asbestos Ring Gaskets.
Branch Connections See Appendix 1, sheet 14B.
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Class 15S
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 57 of 151
Closures (Plugs, Caps and Blind Flanges)
Material Size Description
ASTM A182 Grade F316L ½" - 1½" 6000 lb, Hex Head Plugs.
ASTM A182 Grade F316L/ ½" -10" Weld Caps or Blind Flanges.
ASTM A312 Grade TP316L
VALVES (See notes)
Ball Valves ½" - 1½" Class 800, Threaded Ends, Female NPT,
Lever Operated.
Material: AISI 316L
Tag nr: V-702
½"- 10" ASME 150, Flanged Ends, RF,
Reduced Bore, Lever Operated.
Material: AISI 316L
Tag nr: V-715
Check Valves
For Horizontal or ½" - 1½" Class 800, Threaded Ends, Max. ΔP= 0.5
Vertical Up Flow barg Ball type.
Material: AISI 316L
Tag nr: V-565
For Horizontal ½" - 1½" ASME 150, Flanged Ends, RF, Ball or
Or Vertical Up Flow Piston Spring Type, Max. ΔP=0.5 barg
Material : AISI 316L
Tag nr: V-591
For Horizontal or 2" -10" ASME 150, Flanged Ends, RF,
Vertical Up Flow Wafer Type, Duo Disc Design.
Material: AISI 316L
Tag nr: V-508
Needle Valves
For P.I.'s only ½" 6000 lb, Stainless Steel, Gauge Valve,
NPT Male Inlet x 3 NPT Female Outlets.
Material: AISI 316L
Tag nr: V-641
For P.I. Drains ½" 6000 lb, Stainless Steel, NPT Male Inlet
x NPT Female Outlet.
Material: AISI 316L
Tag nr: V-642
(Note 5) ½" - 1" ASME 150, Monoflange Ends,
RF/ NPT ½".
Material: AISI 316L
Tag nr: V-607
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Class 15S
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 58 of 151
Note 1. For power operated valve use V-715-P (Size 1" and above).
Note 2. The valve tag number for power operated valve shall be extended
with P e.g. V-715-P.
Note 3. Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 530PA715060 and hydraulic operated as e.g. 530PH715060.
Note 4. For service symbol 4 and 5 only.
Note 5. Monoflange valve to be used as block valve between piping and instruments.
Note 6. Only BW fittings to be used for service symbol 1, and in other services
only sparingly.
Note 7. For tubing use ASTM B677 grade TP904-L.
Note 8. Lokring fittings may be used to replace field welds in brownfield projects.
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Class 15SH
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 59 of 151
5.8 PIPING SPECIFICATION CLASS 15SH
ASME 150 SS Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Services in Line Number
Hydrocarbons 1
Glycol 6
Materials according to Sections 2.5 and 3.0
Pressure/Temperature Limits (ASME 150, Stainless Steel according Material Group 2.2)
Temperature °C -20/38 50 95 150 200 225
Pressure Barg 19.0 18.4 16.2 14.8 13.5 12.8
PIPE (Note 6)
Base Material Size Description
ASTM A312 ½" - 1½" Schedule 80S, Seamless.
Grade TP316L 2" - 10" Schedule 40S, Seamless.
FITTINGS
Elbows, Tees, Nipples, & Reducers
Material Size Description
ASTM A312 ½" - 10" Butt Weld, WE tapered to match pipe
Grade TP316L schedule (Note 5). See specification 505
for dimensional requirements.
Flanges
Material Size Description
ASTM A182 ½" - 10" ASME 150, WN RF, bore to match ID of
pipe. Grade F316L
Stud Bolts & Nuts
Material Size Description
ASTM A320 All Stud Bolts and Nuts,Aluminium plated
Grade L7/A194 Grade 7 and PTFE coated.
Gaskets
Material Size Description
All Spiral Wounds, 4.5mm thick, 316LSS
metal strip, Non-Asbestos filler
material, SS steel external centring ring.
Branch Connections See Appendix 1, sheet 21B.
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Class 15SH
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 60 of 151
Closures (Plugs, Caps and Blind Flanges)
Material Size Description
ASTM A182 Grade F316L/ ½" -10" Weld Caps or Blind Flanges.
ASTM A312 Grade TP316L
VALVES (See notes)
Ball Valves ½"- 10" ASME 150, Flanged Ends, RF,
Reduced Bore, Lever Operated.
Material: AISI 316L
Tag nr: V-715-H
Check Valves
For Horizontal or ½" - 1½" ASME 150, Flanged Ends,RF.
Vertical Up Flow Ball or Piston Spring Type, Max. ΔP=0.5
barg Material: AISI 316L
Tag nr: V-590-H
For Horizontal or 2" -10" ASME 150, Flanged Ends, RF,
Vertical Up Flow Wafer Type, Duo Disc Design.
Material: AISI 316L
Tag nr: V-508-H
Needle Valves
For P.I.’s only ½" 6000 lb, Stainless Steel, Gauge Valve,
NPT Male Inlet x 3 NPT Female Outlets
Material: AISI 316L
Tag nr: V-641-H
For P.I. Drains ½" 6000 lb, Stainless Steel,
NPT Male Inlet x NPT Female Outlets
Material: AISI 316L
Tag nr: V-642-H
(Note 4) ½" - 1" ASME 150, Monoflange Ends,
RF/ NPT ½".
Material: AISI 316L
Tag nr: V-607-H
Note 1. For power operated valve use V-715-HP (Size 1" and above).
Note 2. The valve tag number for power operated valve shall be extended
with P e.g. V-715-HP.
Note 3. Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 53HPA715060 and hydraulic operated as e.g. 53HPH715060.
Note 4. Monoflange valve to be used as block valve between piping and instruments.
Note 5. BW Fittings only to be used.
Note 6. For tubing use ASTM B677 grade TP904-L.
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Class 30
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 61 of 151
5.9 PIPING SPECIFICATION CLASS 30
ASME 300 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Service in Line Number
Hydrocarbons 1
Glycol 6
Materials according to Section 2.1, 2.2 and 3.0
Pressure /Temperature Limits (ASME 300, Carbon Steel according Material Group 1.1)
Temperature °C -20/38 50 95
Pressure Barg 51.0 50.1 46.9
PIPE
Material Size Description
ASTM A106 Grade B ½" - 1" Schedule XS/80, Seamless.
ASTM A333 Grade 6 1½" - 2" Schedule XS/80, Seamless.
ASTM A333 Grade 6 3" - 10" Schedule STD/40, Seamless.
ASTM A333 Grade 6 12" - 16" Schedule 40, Seamless.
FITTINGS
Elbows, Tees, Nipples, & Reducers
Base Material Size Description
ASTM A105N 1" and smaller 3000 lb, Threaded.
ASTM A350 Grade LF2 CL.1 1½" 3000 lb, Threaded.
ASTM A333 Grade 6 1/2" - 16" Butt Weld, WE tapered to match pipe
schedule. See specification 505 for
dimensional requirements
Unions, Couplings
Material Size Description
ASTM A105N 1" and smaller 3000 lb, Threaded.
ASTM A350 Grade LF2 1½" 3000 lb, Threaded.
CL.1
Flanges
Material Size Description
ASTM A105N 1" and smaller ASME 300, Threaded, RF (See Note 1).
ASTM A350 Grade LF2 CL.1 1½" ASME 300, Threaded, RF (See Note 1).
ASTM A350 Grade LF2 CL.1 2" - 16" ASME 300, RF, WN Bore to match
ID of Pipe.
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Class 30
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 62 of 151
Stud Bolts & Nuts
Material Size Description
ASTMA A320 Grade L7/ All Stud Bolts and Nuts Aluminium plated
A194 Grade 7 and PTFE coated.
Gaskets
Material Size Description
All Spiral Wound, 4.5 mm thick, 316 L SS
metal strip, Non-Asbestos filler
material, Stainless Steel external
centring ring.
Branch Connections See Appendix I Sheet 6B.
Closures (Plugs, Caps and Blind Flanges)
Material Size Description
ASTM A105N ½" - 1" 6000 lb, Forged Steel, Hex Head Plugs.
ASTM A350 Grade LF2 CL.1 1½" 6000 lb, Forged Steel, Hex Head Plugs.
ASTM A516 Grade 65 / 2" – 16" Weld Caps or Blind Flanges.
ASTM A350 Grade LF2 CL.1
VALVES (See Notes)
Ball Valves
Use for Instruments, ½" - 1½" Class 800, Threaded Ends, Female NPT,
Vents & Drains Reduced Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1
Tag nr: V-711
(Note 1) ½" - 1" ASME 300, Flanged Ends
RF, Reduced Bore, Lever Operated.
Material: ASTM A105N/ASTM
A216 Grade WCB
Tag nr: V-777
(Note 1) 1½" ASME 300, Flanged Ends
RF, Reduced Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-777
2" - 6" ASME 300, Flanged Ends, RF,
Reduced Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-731
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Class 30
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 63 of 151
Material Size Description
8" - 16" ASME 300, Flanged Ends, RF,
Reduced Bore, Gear Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-737
2" - 6" ASME 300, Flanged Ends,
RF, Full Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-733
8" - 16" ASME 300, Flanged Ends, RF,
Full Bore, Gear Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-736
Globe Valves Size Description
½" – 1" Class 800, Threaded Ends, OS&Y
Bolted Bonnet.
Material: ASTM A105N/ASTM
A216 Grade WCB
Tag nr: V-415
1½" Class 800, Threaded Ends, OS&Y
Bolted Bonnet.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-415
2" - 6" ASME 300, Flanged Ends, RF,
OS&Y Bolted Bonnet.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-448
Check Valves Size Description
Horizontal or ½" - 1½" Class 800, Threaded Ends, Ball or Piston
Vertical Up Flow Spring Type, Max. ΔP= 0.5 barg.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-510
Horizontal or 2" - 6" ASME 300, Duo Disc
Vertical Up Flow Design, Wafer Type, RF.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-516
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Class 30
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 64 of 151
Horizontal or 8" - 16" ASME 300, Duo Disc
Vertical Up Flow Design, Wafer Type, RF.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-516
Needle Valves ½" 6000 lb, Stainless Steel, Gauge Valve,
NPT Male Inlet x 3 NPT Female Outlet.
Material: AISI 316L
Tag nr: V-641
For P.I. Drains ½" 6000 lb, Stainless Steel, NPT
Male Inlet x NPT Female Outlet.
Material: AISI 316L
Tag nr: V-642
(Note 6) ½" - 1" ASME 300, monoflange (Needle valve)
Ends RF/ NPT ½".
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-630
Note 1. To be used for connection on equipment only.
Note 2. For power operated valves reduced bore use V-731-P (Size 1"and above).
Note 3. For power operated valves full bore use V-733-P (Size 1" and above).
Note 4. The valve tag number for power operated valve shall be extended
with P e.g. V-733-P.
Note 5. Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 530PA733060 and hydraulic as e.g. 530PH733060.
Note 6. Monoflange valve to be used as block valve between piping and instruments.
Note 7. Lokring fittings may be used to replace field welds in brownfield projects.
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Class 30W
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 65 of 151
5.10 PIPING SPECIFICATION CLASS 30W
ASME 300 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Service in Line Number
Hydrocarbons 1
Glycol 6
Materials according to Section 2.1, 2.2 and 3.0
Pressure - Temperature Limits (ASME 300, Carbon Steel according Material Group 1.1)
Temperature °C -20/38 50 100 150 200
Pressure Barg 51.0 50.1 46.4 45.1 43.9
PIPE
Material Size Description
ASTM A106 Grade B ½" - 1" Schedule XS/80, Seamless.
ASTM A333 Grade 6 1½" - 2" Schedule XS/80, Seamless.
ASTM A333 Grade 6 3" - 10" Schedule STD/40, Seamless.
ASTM A333 Grade 6 12" - 16" Schedule 40, Seamless.
FITTINGS
Elbows, Tees, Nipples, & Reducers
Base Material Size Description
ASTM A105N 1" and smaller 3000 lb, Threaded.
ASTM A350 Grade LF2 CL.1 1½" 3000 lb, Threaded.
ASTM A333 Grade B 1/2" - 16" Butt Weld, WE tapered to match pipe
schedule. See specification 505 for
dimensional requirements.
Unions, Couplings
Material Size Description
ASTM A105N 1" and smaller 3000 lb, Threaded.
ASTM A350 Grade LF2 CL.1 1½" 3000 lb, Threaded.
Flanges
Material Size Description
ASTM A105N 1" and smaller ASME 300, Threaded, RF (See Note 2).
ASTM A350 Grade LF2 CL.1 1½" ASME 300, Threaded, RF (See Note 2).
ASTM A350 Grade LF2 CL.1 2" - 16" ASME 300, RF, WN, Bore to match
ID of Pipe.
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Class 30W
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 66 of 151
Stud Bolts & Nuts
Material Size Description
ASTM A320 Grade L7/ All Stud Bolts and Nuts Aluminium plated
A194 Grade 7 and PTFE coated.
Gaskets
Material Size Description
All Spiral Wound, 4.5 mm thick 316L SS
metal strip, Non-Asbestos filler
material, SS Steel external centring ring.
Branch Connections See Appendix I Sheet 6F.
Closures (Plugs, Caps, and Blind Flanges)
Material Size Description
ASTM A105N ½" - 1" 6000 lb Forged Steel Hex Head Plugs.
ASTM A350 Grade LF2 CL.1 1½" 6000 lb Forged Steel Hex Head Plugs.
ASTM A516 Grade 65 / 2" – 16" Weld Caps or Blind Flanges.
ASTM A350 Grade LF2 CL.1
VALVES
(See Notes)
Ball Valves
Use for Instruments, ½" - 1½" Class 800, Threaded Ends, Female NPT,
Vents & Drains Reduced Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-711-W
Note 2 ½" - 1" ASME 300, Flanged Ends, RF,
Reduced Bore, Lever Operated.
Material: ASTM A105N/ASTM
A216 Grade WCB
Tag nr: V-777-W
Note 2 1½" ASME 300, Flanged Ends, RF,
Reduced Bore, Lever Operated.
Material: ASTM A350 Grade
LF2 CL.1/ASTM A352 Grade LCC
Tag nr: V-777-W
2” - 6" ASME 300, Flanged Ends,
RF, Full Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-728-W
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Class 30W
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 67 of 151
Material Size Description
3" - 6" ASME 300, Flanged Ends, RF,
Reduced Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-729-W
8" - 16" ASME 300, Flanged Ends,
RF, Full Bore, Gear Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-736-W
8" - 16" ASME 300, Flanged Ends, RF,
Reduced Bore, Gear Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-737-W
Globe Valves Size Description
½" - 1" Class 800, Threaded Ends, OS&Y
Bolted Bonnet.
Material: ASTM A105N/ASTM
A216 Grade WCB
Tag nr: V-415-W
1½" Class 800, Threaded Ends, OS&Y
Bolted Bonnet.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-415-W
2" - 6" ASME 300, Flanged Ends, RF,
OS&Y Bolted Bonnet.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-448-W
Check Valves Size Description
Horizontal or ½" - 1½" Class 800, Threaded Ends, Max. ΔP= 0.5
Vertical Up Flow barg, Ball or Piston Spring Type.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-510-W
Horizontal or 2" - 16" ASME 300, Duo Disc Design,
Vertical Up Flow Wafer Type, RF.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-516-W
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Class 30W
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 68 of 151
Needle Valves Size Description
For P.I.'s only ½" 6000 lb, Stainless Steel, Gauge Valve,
NPT Male Inlet x 3 NPT Female Outlets.
Material: AISI 316L
Tag nr: V-641-W
For P.I. Drains ½" 6000 lb, Stainless Steel, NPT Male Inlet
x NPT Female Outlet.
Material: AISI 316L
Tag nr: V-642-W
(Note 7) ½" – 1" ASME 300, monoflange (needle valve),
Ends RF/NPT ½"
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr. V-630-W
Note 1. Class 30W valves shall be suitable for 200°C.
Note 2. To be used for connection on equipment only.
Note 3. For power operated valves reduced bore use V-729-WP (Size 1" thru 6")
and V-737-WP (Size 8" and above).
Note 4. For power operated valves full bore use V-728-WP (Size 1" thru 6")
and V-736-WP (Size 8" and above).
Note 5 Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 53WPA729060 and hydraulic as e.g. 53WPH729060.
Note 6 Full bore valves to be used for relief service and critical service only.
Note 7 Monoflange valve to be used as block valve between piping and instruments.
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Class 30H
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 69 of 151
5.11 PIPING SPECIFICATION CLASS 30H
ASME 300 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Service in Line Number
Thermal Oil 2
Glycol 6
Materials according to Section 2.1, 2.2 and 3.0
Pressure/Temperature Limits (ASME 300, Carbon Steel according Material Group 1.1)
Temperature °C -20/38 50 100 150 200 250 300 315
Pressure Barg 51.0 50.1 46.4 45.1 43.9 41.8 38.9 37.9
PIPE
Material Size Description
ASTM A106 Grade B ½"- 1" Schedule XS/80, Seamless.
ASTM A333 Grade 6 1" – 2" Schedule XS/80, Seamless.
ASTM A333 Grade 6 3" - 10" Schedule STD/40, Seamless.
ASTM A333 Grade 6 12" - 16" Schedule 40, Seamless.
FITTINGS
Elbows, Tees & Reducers
Base Material Size Description
ASTM A106 Grade B 1" and smaller 3000 lb, Threaded.
ASTM A350 Grade LF2 CL.1 1½" 3000 lb, Threaded.
ASTM A333 Grade 6 1/2" - 16" Butt Weld, WE tapered to match pipe
schedule. See specification 505 for
dimensional requirements.
Unions
Material Size Description
ASTM A105N 1" and smaller 3000 lb, Threaded.
ASTM A350 Grade LF2 CL.1 1½" 3000 lb, Threaded.
Flanges
Material Size Description
ASTM A105 1" and smaller ASME 300, Threaded, RF (see Note 2).
ASTM A350 Grade LF2 CL.1 1½" ASME 300, Threaded, RF (see Note 2).
ASTM A350 Grade LF2 CL.1 1” - 16" ASME 300, RF, WN Bore to match
ID of Pipe.
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Class 30H
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 70 of 151
Stud Bolts & Nuts
Material Size Description
ASTM A320 Grade L7/ All Stud Bolts and Nuts Aluminium plated
A194 Grade 7 and PTFE coated.
Gaskets
Material Size Description
All Spiral Wound, 4.5 mm thick, 316L SS
metal strip, non Asbestos filler
material, SS Steel external centring
ring.
Branch Connections See Appendix I Sheet 6D.
Closures (Plugs, Caps and Blind Flanges)
Material Size Description
ASTM A105N ½" - 1" 6000 lb Forged Steel Hex Head Plugs.
ASTM A350 Grade LF2 CL.1 1½" 6000 lb Forged Steel Hex Head Plugs.
ASTM A516 Grade 65 / 2" – 16" Weld Caps or Blind Flanges.
ASTM A350 Grade LF2 CL.1
VALVES
(See Notes)
Ball Valves Size Description
½" - 1" ASME 300, Flanged Ends, RF,
Full Bore, Lever Operated.
Material: ASTM A105/ASTM
A216 Grade WCB
Tag nr: V-716-H
1½" - 6" ASME 300, Flanged Ends, RF,
Full Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-716-H
½" - 1" ASME 300, Flanged Ends, RF, Reduced
Bore, Lever Operated.
Material: ASTM A105/ASTM
A216 Grade WCB
Tag nr: V-717-H
1½" - 6" ASME 300, Flanged Ends, RF, Reduced
Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-717-H
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Class 30H
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 71 of 151
Ball Valves Size Description
8" - 16" ASME 300, Flanged Ends, RF, Reduced
Bore, Gear Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-718-H
Globe Valves ½" - 1" Class 800, OS&Y Bolted Bonnet,
Threaded Ends.
Material: ASTM A105/ASTM
A216 Grade WCB
Tag nr: V-415-H
1½" Class 800, OS&Y Bolted Bonnet,
Threaded Ends.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-415-H
Globe Valves 2" - 6" ASME 300, OS&Y Bolted
Bonnet, Flanged Ends, RF.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-448-H
Check Valves
Horizontal or ½" - 1½" Class 800, Threaded Ends, Max. ΔP= 0.5
Vertical Flow Up barg. Ball or Piston Spring Type.
Material: ASTM A350 Grade LF2
CL.1/ASTM A352 Grade LCC
Tag nr: V-510-H
Horizontal or 2" - 16" ASME 300, Duo Disc Design, Wafer
Vertical Flow Up Type, Metal Seats, RF.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-596-H
Needle Valves
For P.I.'s only ½" 6000 lb, Stainless Steel, Gauge Valve,
NPT Male Inlet x 3 NPT Female Outlets.
Material: AISI 316L
Tag nr: V-641-H
For P.I. Drains ½" 6000 lb, Stainless Steel, NPT Male Inlet
x NPT Female Outlet.
Material: AISI 316L
Tag nr: V-642-H
Class 30 H only ½" Tag nr: V-643-H, use V-641-H
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Class 30H
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 72 of 151
(Note 7) ½" - 1" ASME 300, Monoflange (needle valve)
Ends RF/NPT ½"
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag. Nr. V-630-H
Note 1. High temperature valves shall be suitable for 315°C.
Note 2. To be used for connection on equipment only.
Note 3. For power operated valve reduced bore use. V-718-HP (Size 1" and above).
Note 4. For power operated valve full bore use V-716-HP (Size 1" and above).
Note 5 Power operated valve with airdriven actuator shall be indicated with A as fifth
code digit e.g. 53HPA718030 and hydraulic as e.g. 53HPH718030.
Note 6 Full bore valves to be used for relief service and critical service only.
Note 7 Monoflange valve to be used as block valve btween piping and instrument.
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Class 30U
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 73 of 151
5.12 PIPING SPECIFICATION CLASS 30U
ASME 300 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Services in Line Number
Utility Air, Instrument Air 3
Material according to Sections 2.1, 2.2 and 3.0
Pressure - Temperature Limits (ASME 300, Carbon Steel according Material Group 1.1)
Temperature °C -20/38 50 95
Pressure Barg 51.0 50.1 46.9
PIPE
Material Size Description
ASTM A106 Grade B ½" - 1" Schedule XS/80, Seamless, Galvanised.
ASTM A333 Grade 6 1½" Schedule XS/80, Seamless, Galvanised.
ASTM A333 Grade 6 2" Schedule XS/80, Seamless (Note 5).
ASTM A333 Grade 6 3" - 6" Schedule STD/40, Seamless (Note 5).
FITTINGS
(Note 5)
Elbows, Tees, Nipples and Reducers
Base Material Size Description
ASTM A105N 1" and smaller 3000 lb, Threaded, Galvanised.
ASTM A350 Grade LF2 CL.1 1½" 3000 lb, Threaded, Galvanised.
ASTM A333 Grade 6 2" – 6" Steel Butt Weld, WE tapered to match
pipe schedule.
Unions, Couplings
Material Size Description
ASTM A105N 1" and smaller 3000 lb, Threaded, Galvanised.
ASTM A350 Grade LF2 CL.1 1½" 3000 lb, Threaded, Galvanised.
Flanges
Material Size Description
ASTM A105N 1" and smaller ASME 300, RF, Threaded, Galvanised
ASTM A350 Grade LF2 CL.1 1½" ASME 300, RF, Threaded, Galvanised
2" – 6" ASME 300, RF WN, bore to match ID
of pipe.
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Class 30U
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 74 of 151
Stud Bolts & Nuts
Material Size Description
ASTMA A320 Grade L7/ All Stud Bolts and Nuts, Aluminium plated
A194 Grade 7 and PTFE coated.
Gaskets All Spiral wound, 4.5mm thick, 316LSS
metal strip, Non-Asbestos filler
material, stainless steel external
centring ring.
Branch Connections See Appendix 1, sheet 16B.
Closures (Plugs, Caps and Blind Flanges)
Material Size Description
ASTM A105N ½" - 1" 6000 lb, Hex Head Plugs, Galvanised.
ASTM A350 Grade LF2 CL.1 1½" 6000 lb, Hex Head Plugs, Galvanised.
ASTM A516 Grade 65 / 2" – 6" Weld Caps or Blind Flanges.
ASTM A350 Grade LF2 CL.1
VALVES
Ball Valves Size Description
Use for instruments, ½" - 1½" Class 800, Threaded Ends, Female NPT,
Vents & Drains Lever Operated.
Material: ASTM A350 Grade LF2 CL.1
Tag nr: V-711
½" - 1" ASME 300, Flanged Ends, RF,
Reduced Bore, Lever Operated.
Material: ASTM A105N/ ASTM
A216 Grade WCB
Tag nr: V-766
1½" - 2" ASME 300, Flanged Ends, RF,
Reduced Bore, Lever Operated.
Material: ASTM A350 Grade LF2 Cl.1/
ASTM A352 Grade LCC
Tag nr: V-766
3" - 6" ASME 300, Flanged Ends, RF,
Reduced Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-731
Globe Valves ½" - 1" Class 800, Threaded Ends,
OS&Y, bolted bonnet.
Material: ASTM A105/ASTM
A216 Grade WCB
Tag nr: V-415
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Class 30U
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 75 of 151
1½" Class 800, Threaded Ends,
OS&Y, bolted bonnet.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-415
2" - 6" ASME 300, Flanged Ends, RF, OS&Y.,
bolted bonnet
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-448
Check Valves
For horizontal ½" - 1½" Class 800, Ball or Piston Spring type,
or vertical up Flow Threaded, Max. ΔP= 0.5 barg.
Material: ASTM A350Grade LF2 CL.1
Tag nr: V-510
Check Valves
For horizontal or 2" - 6" ASME 300, Wafer Type, RF Facing,
Vertical up flow Duo Disc Design.
Aluminium bronze
Tag nr: V-597
Needle Valves
For P.I.'s only ½" 6000 lb, Stainless Steel, Gauge Valve,
NPT Male Inlet x 3 NPT Female Outlets.
Material: AISI 316L
Tag nr: V-641
For P.I. Drains ½" 6000 lb, Stainless Steel, NPT Male
Inlet x NPT Female Outlet.
Material: AISI 316L
Tag nr: V-642
(Note 5) ½" - 1" ASME 300, monoflange (needle valve)
Ends RF/NPT ½"
Material: A350 Grade LF2 CL.1/A352
Grade LCC
Tag nr: V-630
Note 1. For power operated valve use V-731, extended with the suffix P e.g. V-731-P
(Size 1" and above).
Note 2. Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 530PA731030 and hydraulic operated as e.g. 530HP731030.
Note 3. Pipe and fittings 2" and larger shall be hot dip galvanised after spool fabrication.
Note 4. To be used for flanged vents, drains and flanged instrument connection on
equipment only.
Note 5. Monoflange valve to used as block valve between piping and instruments.
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Class 60
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 76 of 151
5.13 PIPING SPECIFICATION CLASS 60
ASME 600 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Services in Line Number
Hydrocarbons 1
Methanol 7
Corrosion Inhibitor 8
Materials according to Section 2.2 and 3.0
Pressure/Temperature Limits (ASME 600, Carbon Steel according Material Group 1.1)
Temperature °C -20/38 50 95
Pressure Barg 102.1 100.1 93.0
PIPE
Material Size Description
ASTM A333 Grade 6 ½" - 1½" Schedule XS/80, Seamless.
ASTM A333 Grade 6 2" - 4" Schedule STD/40, Seamless.
ASTM A333 Grade 6 6" - 10" Schedule XS, Seamless.
ASTM A333 Grade 6 12" – 16" Schedule 60, Seamless.
FITTINGS
Elbows, Tees, Nipples & Reducers
Base Material Size Description
ASTM A350 Grade LF2 CL.1 1½" and smaller 3000 lb, Threaded.
ASTM A333 Grade 6 ½" – 16" Butt Weld, WE tapered to match pipe
schedule. See specification 505 for
dimensional requirements.
Unions, Couplings
Material Size Description
ASTM A350 Grade LF2 CL.1 1½" and smaller 3000 lb, Threaded.
Flanges
Material Size Description
ASTM A350 Grade LF2 CL.1 1½" and smaller ASME 600, Threaded, RF (see Note1).
ASTM A350 Grade LF2 CL.1 ½" – 16" ASME 600, RF Weld Neck, Bore to
match ID of pipe.
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Class 60
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 77 of 151
Stud Bolts & Nuts
Material Size Description
ASTM A320 Grade L7/ All Stud Bolts and Nuts, Aluminium plated
A194 Grade 7 and PTFE coated.
Gaskets
Material Size Description
All Spiral wound 4.5 mm thick ,316L SS
metal strip, non-Asbestos filler material,
SS Steel external centring ring.
Branch Connections See Appendix I sheet 7B.
Closures (Plugs, Caps and Blind Flanges)
Material Size Description
ASTM A350 Grade LF2 CL.1 ½" -1½" 6000 lb Hex Head Plugs.
ASTM A516 Grade 65 / ½" – 16" Weld Cap or Blind Flanges.
ASTM A350 Grade LF2 CL.1
VALVES (See Notes)
Ball Valves Size Description
(Use for Instruments, ½" - 1½" Class 800, Threaded Ends, Female NPT,
Vents and Drains) Reduced Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1
Tag nr: V-711
(See Note 1) ½" - 1½" ASME 600, Flanged Ends, RF,
Reduced Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-780
1" ASME 600, Flanged Ends, RF, Full Bore,
Handwheel Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-962
(Preferred instead of V-780 for closed
drain pods).
2" - 4" ASME 600, Flanged Ends, RF,
Full Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-744
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Class 60
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 78 of 151
2" - 6" ASME 600, Flanged Ends, RF,
Reduced bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-741
8" - 16" ASME 600, Flanged Ends, RF,
Reduced Bore, Gear Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-742
6" - 16" ASME 600, Flanged Ends, RF,
Full Bore, Gear Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-746
Globe Valves
2" - 6" ASME 600, Flanged Ends, RF,
OS&Y, Bolted Bonnet.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-452
Check Valves
Horizontal or ½" - 1½" Class 800, Threaded Ends, Piston or Ball
Vertical Up Flow Spring Type, Bolted Bonnet,
Max. ΔP= 0.5 barg.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-510
Horizontal or 2" - 16" ASME 600, Wafer Type, RF Facing,
Vertical Up Flow Duo Disc Design.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-517
Needle Valves
For P.I.'s only ½" 6000 lb, Stainless Steel, Gauge Valve,
NPT Male Inlet x 3 NPT Female Outlets.
Material: AISI 316L
Tag nr: V-641
For P.I. Drains ½" 6000 lb, Stainless Steel, NPT Male Inlet
x NPT Female Outlet.
Material: AISI 316L
Tag nr: V-642
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Class 60
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 79 of 151
(Note 6) ½" - 1" ASME 600, monoflange (needle valve)
Ends RF/NPT ½"
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-660
Note 1. To be used for connection on equipment only.
Note 2. For power operated valves reduced bore use V-742-P (Size 1" and above).
Note 3. For power operated valves full bore use V-744-P (Size 1" and above).
Note 4. Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 530PA742060 and hydraulic as e.g. 530PH742060.
Note 5. Full bore valves to be used in relief service or critical service only.
Note 6. Monoflange valve to be used as block valve between piping and instruments.
Note 7. For methanol service all fittings BW.
Note 8 Lokring fittings may be used to replace fieldwelds in brownfield projects.
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Class 60H
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 80 of 151
5.14 PIPING SPECIFICATION CLASS 60H
ASME 600 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Services in Line Number
Hydrocarbons 1
Methanol 7
Corrosion Inhibitor 8
Materials according to Section 2.2 and 3.0
Pressure/Temperature Limits (ASME 600, Carbon Steel according Material Group 1.1)
Temperature °C -20/38 50 100 150 180 200
Pressure Barg 102.1 100.1 93.2 90.2 88.6 87.6
PIPE
Material Size Description
ASTM A333 Grade 6 ½" - 1½" Schedule XS/80, Seamless.
ASTM A333 Grade 6 2" - 4" Schedule STD/40, Seamless.
ASTM A333 Grade 6 6" - 10" Schedule XS, Seamless.
ASTM A333 Grade 6 12" – 16" Schedule 60, Seamless.
FITTINGS
Elbows, Tees, Nipples & Reducers
Base Material Size Description
ASTM A350 Grade LF2 CL.1 1½" and smaller 3000 lb, Threaded.
ASTM A333 Grade 6 ½" – 16" Butt Weld, WE tapered to match pipe
schedule. See specification 505 for
dimensional requirements.
Unions, Couplings
Material Size Description
ASTM A350 Grade LF2 CL.1 1½" and smaller 3000 lb, Threaded.
Flanges
Material Size Description
ASTM A350 Grade LF2 CL.1 1½" and smaller ASME 600, Threaded, RF (see Note1).
ASTM A350 Grade LF2 CL.1 ½" – 16" ASME 600, RF Weld Neck, Bore to
match ID of pipe.
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Class 60H
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 81 of 151
Stud Bolts & Nuts
Material Size Description
ASTM A320 Grade L7/ All Stud Bolts and Nuts, Aluminium plated
A194 Grade 7 and PTFE coated.
Gaskets Size Description
All Spiral wound 4.5 mm thick ,316L SS
metal strip, non-Asbestos filler material,
SS Steel external centring ring.
Branch Connections See Appendix I sheet 7B.
Closures (Plugs, Caps and Blind Flanges)
Material Size Description
ASTM A350 Grade LF2 CL.1 ½" -1½" 6000 lb Hex Head Plugs.
ASTM A516 Grade 65 / ½" – 16" Weld Cap or Blind Flanges.
ASTM A350 Grade LF2 CL.1
VALVES (See Notes)
Ball Valves
(Use for Instruments, ½" - 1½" Class 800, Threaded Ends, Female NPT,
Vents and Drains) Reduced Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1
Tag nr: V-711H
(See Note 1) ½" - 1½" ASME 600, Flanged Ends, RF,
Reduced Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-780H
2" - 4" ASME 600, Flanged Ends, RF,
Full Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-744H
3" - 6" ASME 600, Flanged Ends, RF,
Reduced bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-741H
8" - 16" ASME 600, Flanged Ends, RF,
Reduced Bore, Gear Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-742H
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Class 60H
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 82 of 151
6" - 16" ASME 600, Flanged Ends, RF,
Full Bore, Gear Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-746H
Globe Valves
2" - 6" ASME 600, Flanged Ends, RF,
OS&Y, Bolted Bonnet.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-452H
Check Valves
Horizontal or ½" - 1½" Class 800, Threaded Ends, Piston or Ball
Vertical Up Flow Spring Type, Bolted Bonnet,
Max. ΔP= 0.5 barg.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-510H
Horizontal or 2" - 16" ASME 600, Wafer Type, RF Facing,
Vertical Up Flow Duo Disc Design.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-517H
Needle Valves
For P.I.'s only ½" 6000 lb, Stainless Steel, Gauge Valve,
NPT Male Inlet x 3 NPT Female Outlets.
Material: AISI 316L
Tag nr: V-641H
For P.I. Drains ½" 6000 lb, Stainless Steel, NPT Male Inlet
x NPT Female Outlet.
Material: AISI 316L
Tag nr: V-642H
(Note 6) ½" - 1" ASME 600, monoflange (needle valve)
Ends RF/NPT ½"
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-660H
Note 1. To be used for connection on equipment only.
Note 2. For power operated valves reduced bore use V-742-P (Size 1" and above).
Note 3. For power operated valves full bore use V-744-P (Size 1" and above).
Note 4. Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 530PA742060 and hydraulic as e.g. 530PH742060.
Note 5. Full bore valves to be used in relief service or critical service only.
Note 6. Monoflange valve to be used as block valve between piping and instruments.
Note 7. For methanol service all fittings BW.
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Class 90
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 83 of 151
5.15 PIPING SPECIFICATION CLASS 90
ASME 900 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Services in Line Number
Hydrocarbons, Fuel Gas 1
Glycol 6
Methanol 7
Corrosion Inhibitor 8
Produced Water 9
Materials according to Sections 2.2. and 3.0
Pressure/Temperature Limits (ASME 900, Carbon Steel according Material Group 1.1)
Temperature °C -20/38 50 95
Pressure Barg 153.1 150.2 139.5
PIPE
Material Size Description
ASTM A333 Grade 6 ½" - 1½" Schedule 160, Seamless.
2" - 6" Schedule XS/80, Seamless.
8" - 20" Schedule 100, Seamless.
FITTINGS
Elbows, Tees, Nipples, & Reducers
Base Material Size Description
ASTM A350 Grade LF2 CL.1 1" and smaller 6000 lb, Threaded. (See Note 1)
ASTM A333 Grade 6 ½" – 20" Butt Weld (Weld End tapered to match
pipe schedule). See specification 505
for dimensional requirements.
Couplings
Material Size Description
ASTM A350 Grade LF2 CL.1 1" and smaller 6000 lb Threaded. (See Note 1)
Flanges
Material Size Description
ASTM A350 Grade LF2 CL.1 1" and smaller ASME 1500, RTJ, Threaded (See Note 1).
ASTM A350 Grade LF2 CL.1 ½" - 2" ASME 1500, RTJ, WN, bore to match ID
of pipe.
ASTM A350 Grade LF2 CL.1 3" – 20" ASME 900, RTJ, WN, bore to match
ID of pipe.
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Class 90
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 84 of 151
Stud Bolt & Nuts
Material Size Description
ASTM A320 Grade L7/ All Stud Bolts and Nuts Aluminium plated
A194 Grade 7 and PTFE coated.
Gaskets
Material Size Description
All Soft Iron, Oval Rings, Cadmium plated.
Branch Connections See Appendix I Sheet 8B.
Closures (Plugs, Caps, and Blind Flanges)
Material Size Description
ASTM A350 Grade LF2 CL.1 ½" - 1" 6000 lb, Forged Steel Hex Head Plugs,
(see Note 1)
ASTM A516 Grade 65 / ½" – 20" Weld Caps or Blind Flanges.
ASTM A350 Grade LF2 CL.1
VALVES
(See Notes)
Ball Valves ½" - 1" Class 1500, Threaded Ends, Female
NPT, Full Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1
Tag nr: V-710
½" 10.000 PSI, Extended Male x Female,
Threaded Ends NPT.
Material: AISI 316
Tag nr: V-673
(For blind flanges with ½" NPT hole).
1" – 1 ½" ASME 1500, Flanged Ends, RTJ, Full
Bore, Handwheel Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-958
(Preferred instead of V-751, for drain
pods only).
1" - 2" ASME 1500, Flanged Ends, RTJ,
Reduced Bore, Lever Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-751
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Class 90
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 85 of 151
3" - 4" ASME 900, Flanged Ends, RTJ,
Reduced Bore, Lever Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-751
Ball Valves 6" - 36" ASME 900, Flanged Ends, RTJ,
Reduced Bore, Gear Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-753
½" - 2" ASME 1500 Flanged Ends, RTJ,
Full Bore, Lever Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-755
3" ASME 900, Flanged Ends, RTJ,
Full Bore, Lever Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-755
4" - 36" ASME 900, Flanged Ends, RTJ,
Full Bore, Gear Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-757
Globe Valves ½" - 1" Class 1500, Threaded Ends, OS&Y,
Welded Bonnet.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-418
½" - 2" ASME 1500, Flanged Ends, RTJ,
OS&Y, Bolted Bonnet.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-472
3" ASME 900, Flanged Ends, RTJ,
OS&Y, Bolted Bonnet.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-455
4" - 6" ASME 900, Flanged Ends, RTJ,
OS&Y Bolted Bonnet, Gear Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-457
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Class 90
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 86 of 151
Check Valves
Horizontal or ½" - 1" Class 1500, Threaded Ends,
Vertical Up Flow Ball or Piston Spring Type,
Max. ΔP= 0.5 barg,
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-512
Horizontal or ½" - 1½" ASME 1500, Flanged Ends, RTJ,
Vertical Up Flow Ball or Piston Spring Type,
Max. ΔP= 0.5 barg,
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-582
Horizontal or 2" - 36" ASME 900, Wafer Type, Dual Disc,
Vertical Up Flow RTJ Facing.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-519
Needle Valves ½" 6000 lb, Stainless Steel, Gauge Valve,
NPT Male Inlet x 3 NPT Female Outlets.
Material: AISI 316L
Tag nr: V-641
½" 6000 lb, Stainless Steel, NPT Male
Inlet x NPT Female Outlet.
Material: AISI 316L
Tag nr: V-642
(Note 10) ½" - 1" - 2" ASME 1500, monoflange (needle valve)
Ends RTJ / NPT ½"
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-650
Note 1. For sizes 1" and smaller BW fitting and flanges are preferred.
Note 2. For power operated valves reduced bore use V-751-P (Size 1" thru 4")
and V-753-P (Size 6" and above).
Note 3. For power operated valves full bore use V-755-P (Size 1" thru 3")
and V-757-P (Size 4" and above).
Note 4. Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 530PA757060 and hydraulic as e.g. 530PH757060.
Note 5. Full bore valves to be used for relief service, and lines which should
be piggable.
Note 6. Valves for ESD or pigging service to be double block and bleed and equipped
with secondary seat sealing.
Note 7. For critical service only i.e. pulsation, used check valve non slam type.
Note 8. Monoflange valve to be used as block valve between piping and instruments.
Note 9. For methanol service all Fittings BW.
Note 10. Lokring fittings may be used to replace field welds in brownfield projects.
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Class 90
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 87 of 151
5.16 PIPING SPECIFICATION CLASS 90H
ASME 900 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Services in Line Number
Hydrocarbons 1
Materials according to Sections 2.2. and 3.0
Pressure/Temperature Limits (ASME 900, Carbon Steel according Material Group 1.1)
Temperature °C -20/38 50 100 150 180
Pressure Barg 153.1 150.2 139.2 135.8 133.1
PIPE
(See Note 1)
Material Size Description
ASTM A333 Grade 6 ½" - 1½" Schedule 160, Seamless.
2" - 6" Schedule XS/80, Seamless.
8" - 20" Schedule 100, Seamless.
FITTINGS
Elbows, Tees, Nipples & Reducers
Base Material Size Description
ASTM A350 Grade LF2 CL.1 1" and smaller 6000 lb, Threaded (See Note 1).
(See Note 1) ½" – 20" Butt Weld (Weld End tapered to match
ASTM A333 Grade 6 pipe schedule). See specification 505
for dimensional requirements.
Couplings
Material Size Description
ASTM A350 Grade LF2 CL.1 1" and smaller 6000 lb Threaded (See Note 1).
Flanges
Material Size Description
ASTM A350 Grade LF2 CL.1 1" and smaller ASME 1500, RTJ, Threaded.
(See Note 1) ½" - 2" ASME 1500, RTJ, WN, bore to match ID
of pipe.
3" – 20" ASME 900, RTJ, WN, bore to match
ID of pipe.
Stud Bolt & Nuts
Material Size Description
ASTM A320 Grade L7/ All Stud Bolts and Nuts Aluminium plated
A194 Grade 7 and PTFE coated.
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Class 90
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 88 of 151
Gaskets
Material Size Description
All Soft Iron, Oval Rings, Cadmium plated.
Branch Connections See Appendix I Sheet 8D.
Closures (Plugs, Caps and Blind Flanges)
Material Size Description
ASTM A350 Grade LF2 CL.1 ½" - 1" 6000 lb, Forged Steel Hex Head Plugs,
(See Note 1)
ASTM A516 Grade 65 / ½" – 20" Weld Caps or Blind Flanges.
ASTM A350 Grade LF2 CL.1
VALVES
(See Notes)
Ball Valves ½" - 1" Class 1500, Threaded Ends, Female
NPT, Full Bore, Lever Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-710-H
½" 10.000 PSI, Extended Male x Female,
Threaded Ends NPT.
Material: AISI 316
Tag nr: V-673-H
(For blind flanges with ½" NPT hole).
1" – 1 ½" ASME 1500, Flanged Ends, RTJ, Full
Bore, Handwheel Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-958-H
(Preferred instead of V-751-H, for drain
pot only).
1" - 2" ASME 1500, Flanged Ends, RTJ,
Reduced Bore, Lever Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-751-H
3" - 4" ASME 900, Flanged Ends, RTJ,
Reduced Bore, Lever Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-751-H
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Class 90
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 89 of 151
6" - 20" ASME 900, Flanged Ends, RTJ,
Reduced Bore, Gear Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-753-H
Ball Valves ½" - 2" ASME 1500 Flanged Ends, RTJ,
Full Bore, Lever Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-755-H
3" ASME 900, Flanged Ends, RTJ,
Full Bore, Lever Operated.
Material: ASTM A352 Grade LCC or
ASTM A350 Grade LF2 CL.1
Tag nr: V-755-H
4" - 20" ASME 900, Flanged Ends, RTJ,
Full Bore, Gear Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-757-H
Globe Valves ½" - 1" Class 1500, Threaded Ends, OS&Y,
Welded Bonnet.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-418-H
½" - 2" ASME 1500, Flanged Ends, RTJ,
OS&Y, Bolted Bonnet.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-472-H
3" ASME 900, Flanged Ends, RTJ,
OS&Y, Bolted Bonnet.
Material:ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-455-H
4" - 6" ASME 900, Flanged Ends, RTJ,
OS&Y Bolted Bonnet, Gear Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-457-H
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Class 90
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 90 of 151
Check Valves
Horizontal or ½" - 1" Class 1500, Threaded Ends,
Vertical Up Flow Ball or Piston Spring Type,
Max. ΔP= 0.5 barg,
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-512-H
Horizontal or ½" - 1½" ASME 1500, Flanged Ends, RTJ,
Vertical Up Flow Ball or Piston Spring Type,
Max. ΔP= 0.5 barg,
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-582-H
Horizontal or 2" - 20" ASME 1500/900, Wafer Type, Dual Disc,
Vertical Up Flow RTJ Facing.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-519-H
Needle Valves ½" 6000 lb, Stainless Steel, Gauge Valve,
NPT Male Inlet x 3 NPT Female Outlets.
Material: AISI 316L
Tag nr: V-641-H
½" 6000 lb, Stainless Steel, NPT Male
Inlet x NPT Female Outlet.
Material: AISI 316L
Tag nr: V-642-H
(Note 2) ½" - 1" - 2" ASME 1500, monoflange (needle valve)
Ends RTJ / NPT ½"
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-650-H
Note 1. For sizes 1" and smaller BW fitting and flanges are preferred.
Note 2. Monoflange valve to be used as block valve between piping and instruments.
Note 3. For power operated valves reduced bore use V-751-HP (Size 1" and above).
Note 4. For power operated valves full bore use V-755-HP (Size 1" and above).
Note 5. Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 53HPA755030 and hydraulic as e.g. 53HPH755030.
Note 6. Full bore valves to be used for relief service and lines which should be piggable.
Note 7. Valves for ESD or pigging service to be double block and bleed and equipped
with secondary seat sealing.
Note 8. For critical service only i.e. pulsation, used check valve non slam type.
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Class 150
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 91 of 151
5.17 PIPING SPECIFICATION CLASS 150
ASME 1500 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Services in Line Number
Hydrocarbons 1
Materials according to Sections 2.2. and 3.0
Pressure/Temperature Limits (ASME 1500, Carbon Steel according Material Group 1.1 with pressure
limit as indicated)
Temperature °C -20/38 50 100 150 200
Pressure Barg 250.0 250.0 231.9 226.1 219.2
PIPE
(See Note 1)
Material Size Description
ASTM A333 Grade 6 ½" - 1½" Schedule 160, Seamless.
2" - 12" Schedule 160, Seamless.
FITTINGS
Elbows, Tees, Nipples & Reducers
Base Material Size Description
ASTM A350 Grade LF2 CL.1 1" and smaller 6000 lb, Threaded (See Note 1).
(See Note 1) ½" – 12" Butt Weld (Weld End tapered to match
ASTM A333 Grade 6 pipe schedule). See specification 505
for dimensional requirements.
Couplings
Material Size Description
ASTM A350 Grade LF2 CL.1 1" and smaller 6000 lb Threaded (See Note 1).
Flanges
Material Size Description
ASTM A350 Grade LF2 CL.1 1" and smaller ASME 1500, RTJ, Threaded.
(See Note 1) ½" - 2" ASME 1500, RTJ, WN, bore to match ID
of pipe.
3" – 12" ASME 1500, RTJ, WN, bore to match
ID of pipe.
Stud Bolt & Nuts
Material Size Description
ASTM A320 Grade L7/ All Stud Bolts and Nuts Aluminium plated
A194 Grade 7 and PTFE coated.
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Class 150
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 92 of 151
Gaskets
Material Size Description
All Soft Iron, Oval Rings, Cadmium plated.
Branch Connections See Appendix I Sheet 17B.
Closures (Plugs, Caps and Blind Flanges)
Material Size Description
ASTM A350 Grade LF2 CL.1 ½" - 1" 6000 lb, Forged Steel Hex Head Plugs,
ASTM A516 Grade 65 / ½" – 12" Weld Caps or Blind Flanges.
ASTM A350 Grade LF2 CL.1
VALVES (See Notes)
Ball Valves ½" - 1" 6000 lb, Threaded Ends, Female
NPT,Full Bore, Lever Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-950
½" 10.000 PSI, Extended Male x Female,
Threaded Ends NPT.
Material: AISI 316
Tag nr: V-673
(For blind flanges with ½" NPT hole).
1" – 1 ½" ASME 1500, Flanged Ends, RTJ, Full
Bore, Handwheel Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-958
(Preferred instead of V-951, fot drain
pods only).
½" - 1½" ASME 1500, Flanged Ends, RTJ,
Reduced Bore, Lever Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-951
2" - 4" ASME 1500, Flanged Ends, RTJ,
Reduced Bore, Lever Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-952
6" - 12" ASME 1500, Flanged Ends, RTJ,
Reduced Bore, Gear Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-953
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Class 150
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 93 of 151
Ball Valves ½" - 1½" ASME 1500 Flanged Ends, RTJ,
Full Bore, Lever Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-954
2" - 3" ASME 1500 Flanged Ends, RTJ,
Full Bore, Lever Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-955
4" - 14" ASME 1500, Flanged Ends, RTJ,
Full Bore, Gear Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-956
Globe Valves ½" - 1" Class 2500, Threaded Ends, OS&Y,
Welded Bonnet.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-403
½" - 3" ASME 1500, Flanged Ends, RTJ,
OS&Y, Bolted Bonnet.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-404
4" - 8" ASME 1500, Flanged Ends, RTJ,
OS&Y Bolted Bonnet, Gear Operated.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-405
Check Valves
Horizontal or ½" - 1" Class 2500, Threaded Ends,
Vertical Up Flow Ball or Piston Spring Type,
Max. ΔP= 0.5 barg,
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-531
Horizontal or ½" - 1½" ASME 1500, Flanged Ends, RTJ,
Vertical Up Flow Ball or Piston Spring Type,
Max. ΔP= 0.5 barg,
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-532
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Class 150
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 94 of 151
Horizontal or 2" - 12" ASME 1500, Wafer Type, Dual Disc,
Vertical Up Flow RTJ Facing.
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-534
Needle Valves ½" 6000 lb, Stainless Steel, Gauge Valve,
NPT Male Inlet x 3 NPT Female Outlets.
Material: AISI 316L
Tag nr: V-641
½" 6000 lb, Stainless Steel, NPT Male
Inlet x NPT Female Outlet.
Material: AISI 316L
Tag nr: V-642
(Note 2) ½" - 1" - 2" ASME 1500, monoflange (needle valve)
Ends RTJ / NPT ½"
Material: ASTM A352 Grade LCC /
ASTM A350 Grade LF2 CL.1
Tag nr: V-650
Note 1. For sizes 1" and smaller BW fitting and flanges are preferred.
Note 2. Monoflange valve to be used as block valve between piping and instruments.
Note 3. For power operated valves reduced bore use V-951-P (Size 1" and above).
Note 4. For power operated valves full bore use V-954-P (Size 1" and above).
Note 5. Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 53OPA951030 and hydraulic as e.g. 53OPH951030.
Note 6. Full bore valves to be used for relief service, and lines which should be
piggable.
Note 7. Valves for ESD or pigging service to be double block and bleed and equipped
with secondary seat sealing.
Note 8. For critical service only i.e. pulsation, used check valve non slam type.
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Class 250
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 95 of 151
5.18 PIPING SPECIFICATION CLASS 250
ASME 2500 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Services in Line Number
Hydrocarbons 1
Glycol 6
Methanol 7
Corrosion Inhibitor 8
Produced Water 9
Materials according to Sections 2.2 and 3.0
Pressure/Temperature Limits (ASME 2500, Carbon Steel according Material Group 1.1)
Temperature °C -20/38 50 95
Pressure Barg 425.5 417.3 387.5
PIPE
Material Size Description
ASTM A333 Grade 6 ½" - 1½" Schedule XXS, Seamless.
2" - 4" Schedule XXS, Seamless.
6" Wall Thickness 25.4 mm, Seamless.
8" Wall Thickness 33.34 mm.
FITTINGS
Elbows, Tees and Reducers
Base Material Size Description
ASTM A350 Grade LF2 CL.1 1" and smaller 6000 lb, Forged Steel, Threaded
(See Note 1).
ASTM A333 Grade 6 ½" – 8" BW, WE tapered to match pipe
schedule. See specification 505 for
dimensional requirements.
Couplings
Material Size Description
ASTM A350 Grade LF2 CL.1 1" and smaller 6000 lb, Threaded (See Note 1).
Flanges
Material Size Description
ASTM A350 Grade LF2 CL.1 ½" - 1" ASME 2500, RTJ, Threaded
(See Note 1, 2) or WN.
ASTM A350 Grade LF2 CL.1 ½" – 8" ASME 2500, RTJ, WN, bore to match ID
of pipe.
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Class 250
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 96 of 151
Stud Bolts & Nuts
Material Size Description
ASTM A320 Grade L7/ All Stud Bolts and Nuts, Aluminium plated.
A194 Grade 7
Gaskets
Material Size Description
All Oval Rings, Soft Iron, Cadmium plated
and PTFE coated.
Branch Connections See Appendix I Sheet 9 B.
Closures (Plugs, Caps and Blind Flanges)
Material Size Description
ASTM A350 Grade LF2 CL.1 ½" - 1" 6000 lb, Forged Steel Hex Head Plugs,
Weld Cap or Blind Flanges.
ASTM A516 – 65/ ½" – 8" Weld Cap or Blind Flanges.
A350 LF2 Cl.1
VALVES (See Notes)
Ball Valves ½" - 1" 6000 lb, Threaded Ends, Female NPT,
Full Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-782
½" 10.000 PSI, Extended Male x Female,
Threaded Ends NPT.
Material: AISI 316
Tag nr: V-673
(For blind flanges with ½" NPT hole).
(See note 2) ½" - 2" ASME 2500, Flanged Ends, RTJ,
Full Bore, Lever Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-781
3" - 8" ASME 2500, Flanged Ends, RTJ,
Full Bore, Gear Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-791
Piston Type Valves
(See note 6) 2" – 8" ASME 2500, Flanged Ends, RTJ,
Gear Operated, Mat: ASTM A350 Grade
LF2 CL.1/ASTM A352 Grade LCC
Tag nr: V-980
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Class 250
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 97 of 151
Check Valves Size Description
Horizontal or Vertical 1"-1.½” ASME 2500, Ball or Piston Check,
Up Flow Max. ΔP= 0.5 barg, Flanged Ends, RTJ.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-593
Horizontal or Vertical 2" - 8" ASME 2500, Wafer Type,
Up Flow Dual Disc, RTJ.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-521
Globe Valves ½" - 1" ASME 2500, Threaded Ends,
OS&Y, Bolted Bonnet.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-854
Globe Valves 1½" - 2" ASME 2500, Flanged Ends, RTJ,
OS&Y, Bolted Bonnet.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-857
Gate Valves
For Instruments, ½" - 1" ASME 2500, Threaded Ends,
Vents, and Drains Union Bonnet, Handwheel Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-277
1" - 8" ASME 2500, Flanged Ends, RTJ,
Bolted Bonnet, Handwheel Operated.
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-278
Needle Valves
For P.I.'s only ½" 6000 lb, Stainless Steel, Gauge Valve,
NPT Male Inlet x 3 NPT Female Outlets.
Material: AISI 316L
Tag nr: V-641
For P.I. Drains ½" 6000 lb, Stainless Steel, NPT Male Inlet
x NPT Female Outlet.
Material: AISI 316L
Tag nr: V-642.
(Note 8)
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Class 250
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 98 of 151
½" - 1" ASME 2500, monoflange (needle valve)
Ends RTJ/NPT ½"
Material: ASTM A350 Grade LF2 CL.1/
ASTM A352 Grade LCC
Tag nr: V-651
Note 1. For sizes 1" and smaller BW fittings and flanges are preferred.
Note 2. To be used for connections at/on equipment only.
Note 3. Full bore valves to be used for relief service and lines which shall be piggable.
Note 4. Valves for ESD or pigging service to be double block and bleed and equipped
with secondary seat sealing.
Note 5. For power operated ball valves use V-781-P (Size 1" thru 2") and V-791-P (Size
3" and above).
Note 6. For power operated piston type valves use V-980-P (Size 2" and above), only to
be used for production/test manifold header.
Note 7. Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 530PA791060 and hydraulic as 530PH791060.
Note 8. Monoflange valve to be used as block valve between piping and instruments.
Note 9. For methanol service all fittings BW.
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Class 500S
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 99 of 151
5.19 PIPING SPECIFICATION CLASS 500SNOTE 1
API 5000 SS Corrosion Allowance : 0 mm Design Code : 13480
Service Symbol
Services in Line Number
Methanol 7
Corrosion Inhibitor 8
Materials according to Sections 2.5 and 3.0
Pressure/Temperature Limits (API 6A CLASS 5000)
Temperature °C -20/38 50 95
Pressure Barg 345.0 345.0 345.0
PIPE
Material Size Description
ASTM B677 Gr TP 904L ½" – ¾” Tubing, 904L SS, WT=0.065". – 0.104”
ASTM A312 Gr TP316L ¾" - 1" Schedule XXS, Seamless, 316L.
FITTINGS
Elbows, Tees, Nipples & Reducers
Base Material Size Description
ASTM A182 Grade F316L ¾" - 1" 6000 lb, SS Threaded.
Flanges
Material Size Description
ASTM A182 Grade F316L ¾" - 1" ASME 2500, Forged SS Steel, RTJ,
Threaded (see Note 2).
Bolts
Material Size Description
ASTM A320 Grade L7/ All Stud Bolts and Nuts, Aluminium plated
ASTM A194 Grade 7 and PTFE coated.
Gaskets
Material Size Description
All 316L SS Ring Joint Oval Ring.
Maximum hardness 165HB.
Branch Connections Smaller than Header or Run Size:
Material
ASTM A182 Grade F316L
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Class 500S
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 100 of 151
Header or
Branch Size Run Size Description of Branch
½" - ¾” ¾" - 1" 6000 lb, Threaded, Reducing Tee.
When required, 6000 lb Threadolets can
be used for instrument connections.
Branch Connections - Full Size:
Material
ASTM A182 Grade F316L 1" and smaller 6000 lb, Threaded Tee.
Closures (Plugs or Caps)
Material
ASTM A182 Grade F316L ½"- 1" 6000 lb, Hex Head Plugs or Caps.
VALVES
Ball Valves ½" - 1" ASME 2500, Flanged Ends, Full Bore,
Lever Operated (see Note 2).
Material: AISI 316L
Tag nr: V-708
½" - 1" ASME 2500, Threaded Ends, Full Bore,
Lever Operated.
Material: AISI 316L
Tag nr: V-709
Check Valves ½" - 1" ASME 2500, Piston Check, (see Note 2)
Flanged Ends, RTJ.
Material: AISI 316L
Tag nr: V-704
½" - 1" API 5000, Piston Check,
Threaded Ends.
Material: AISI 316L
Tag nr: V-705
Globe Valves ½" - 1" API 5000, Threaded Ends, OS&Y,
Seal Welded Bonnet.
Material: AISI 316L
Tag nr: V-485
Needle Valves ½" - 1" ASME 2500, Male & Female
Threaded Ends.
Material: AISI 316L
Tag nr: V-706
Note 1. For new systems Class 250DS is preferred, see Part II. For tubing use 904L.
Note 2. To be used for connection to equipment only.
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Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 101 of 151
PART II FERRITIC/AUSTENITIC (DUPLEX) STAINLESS STEEL
6.0 SCOPE/DEFINITIONS/CODES AND STANDARDS
Part II describes the minimum requirements for Ferritic/Austenitic Stainless Steel piping
components to be used for process and utility systems on offshore platforms.
These components are from material in accordance with VdTüV Werkstoffblatt 418 (Werkstoff Nr
1.4462, X2 CrNiMoN 22 5), EN 10213 (Werkstoff Nr 1.4470, GX2CrNiMoN22-5-3) and and EN
10253-4 (Werkstoff Nr 1.4501, GX2CrNiMoN25-7-4).
ASTM Equivalents may be used as listed in relevant material section.
All piping components can be identified by unique code numbers which can be found in the
summary sheets in Appendix I.
All pipes, fittings and valves shall be in accordance with the latest revision of the relevant codes,
standards and specifications as indicated.
Deviations from this specification or piping materials not listed in this specification can only be
used when in accordance with the requirements of the PED and EN 13480, and accepted by
Company.
All material shall be new and unused.
6.1 DEFINITIONS
Heat Material produced from the same ladle pour.
Product Finished casting, pipe or fitting.
Lot Parts from the same dimensions and heat and treated in the
same heat treatment batch.
Should Indicates preferred course of action.
Shall Indicates mandatory requirements.
Company Noordgastransport B.V.
Low stress die-stamping Round bottom impression in accordance with MSS SP-25.
6.2 CODES AND STANDARDS
All piping components shall meet requirements of the relevant latest edition of the following:
2014/68/EU Pressure Equipment Directive (PED).
API 6D Specification for Pipeline Valves.
API 607 Fire Test for Soft-Seated Quarter-Turn Valves.
API 6FA Specification for Fire Test for Valves.
API-5L Specification for Line Pipe.
ASME B16.5 Steel Pipe Flanges and Flanged Fittings.
ASME B16.9 Factory made Wrought Steel Butt Welding Fittings.
ASME B16.34 Steel Valves, Flanged and Butt Welding Ends.
ASME B16.47 Large Diameter Steel Flanges.
ASME B31.3 Chemical Plant and Petroleum Refinery Piping.
ASME B36.10 Welded and Seamless Wrought Steel Pipe.
ASME B36.19 Stainless Steel Pipe.
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Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 102 of 151
ASTM A262 Practice E, Detecting susceptibility to intergranular attack in
Austenitic Stainless Steel.
ASTM E353 Method for chemical analysis of stainless, heat resisting
maraging and other similar Chromium, Nickel, Iron alloys.
ASTM E562 Practice for determining volume fraction by systematic manual
point counting.
ASTM A923 Standard test methods for Detecting Detrimental Intermetallic
Phase in Wrought Duplex Austenitic/Ferritic Stainless Steels.
ASTM G48 Practice for Examination and Evaluation of Pitting Corrosion.
BS5351 Steel Ball Valves for the Petroleum, Petrochemical and Allied
Industries.
BS6755 Testing of Valves - Part 2. Specification for fire type-testing
requirements.
DIN 50351 Hardness testing.
NEN-EN 10021 General Technical Delivery Requirements for Steel and Iron
Products.
NEN-EN 10204 Metallic products, Types of inspection documents (see Note 2).
NEN-EN 10213 Steel castings for pressure purposes
NEN-EN 13480-1 Metallic Industrial Piping. Part 1: General.
NEN-EN 13480-2 Metallic Industrial Piping. Part 2: Material.
NEN-EN 13480-3 Metallic Industrial Piping. Part 3: Design and Calculations.
NEN-EN 13480-4 Metallic Industrial Piping. Part 4: Fabrication and Installation.
NEN-EN 13480-5 Metallic Industrial Piping. Part 5: Inspection and Testing.
MSS SP-55 Visual examination of castings.
MSS SP-25 Standard Marking System for Valves, Fittings, Flanges and
Unions
VdTüV Werkstoffblatt 418, Ferritisch - Austenischer Walz- und Schmiedstahl (Werkstoff
Nr1.4462, X2 CrNiMoN22 5).
Company Specifications:
502 - Specification for Piping Fabrication and Pressure Testing.
505 - Specification for dimensional requirements of BW pipe fittings.
523 - Specification for coating of threaded fastners.
525 - General Specification for Painting and Coating.
Note 1. Materials used on K12-B Complex, D15-FA-1, L5-FA-1, L15-FA-1, F3B-A, F3B-O
and F3B-P are not covered by this specification.
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Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 103 of 151
7.0 GENERAL MATERIAL SPECIFICATIONS
(Note: see Appendix II – Particular Material Appraisals (PMA’s).
7.1 DUPLEX STAINLESS STEEL PIPING CLASSES 15DS, 15DSH, 30DS, 60DS, 90DS, 90DSH, 150DS
AND 250DS
7.1.1 Pipes (Seamless)
Material : Werkstoff Nr 1.4462.
Certificate : See paragraph 8.0.
7.1.2 Flanges
Material : Werkstoff Nr 1.4462.
Certificate : See paragraph 8.0.
7.1.3 Tees, Elbows, Reducers, (manufactured from Seamless pipe)
Material : Werkstoff Nr 1.4462.
Certificate : See paragraph 8.0.
7.1.4 Caps, (manufactured from plate)
Material : Werkstoff Nr. 1.4462.
Certificate : See paragraph 8.0
7.1.5 Forged Fittings (O-lets, Couplings, Plugs, Unions, Forged Caps, etc.)
Material : Werkstoff Nr 1.4462.
Certificate : See paragraph 8.0.
7.1.6 Valves
Material : Werkstoff Nr 1.4462, Nr 1.4501 (for internals) or castings
(see paragraph 10.0).
Certificate : See paragraphs 8.0 and 10.6.
7.1.7 Stud Bolts/Nuts
Material : ASTM A320 Grade L7/A194 Grade 7, aluminium plated.
Certificate : 3.1
Thread : In accordance with ASME B.1.1.
For D=1" or smaller UNC.
For D=larger than 1" UNS (8TPI).
7.1.8 Gaskets
Class 15DS : Non-Asbestos.
Class 15DSH : Spiral Wound, 316L
Class 30DS : Spiral Wound, 316L.
Class 60DS : Spiral Wound, 316L.
Certificate : 2.1.
Class 90DS,90 DSH,
150 DS, 250DS : Oval Ring 316L Maximum Hardness 165 HB.
Certificate : 3.1 - Material Grade and Heatnumber marked on ring.
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Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 104 of 151
8.0 CERTIFICATION
For piping components subject to approval, Manufacturer shall have and maintain a NoBo
approved ISO quality control system and consequently, a Manufacturer’s Certificate of Conformity
as per PED Annex I, section 4.3 shall be provided.
Besides the above, the type and content of other required certificates are indicated in paragraph
8.1. In case of not compliant with the above, certificates to 3.1.C/3.2 are required.
8.1 REQUIRED CERTIFICATES FOR PLATE, PIPE, FITTINGS AND FORGINGS
(For Castings see paragraph 10.0)
Certificate type 3.1 is required for:
Chemical composition of base material.
Mechanical properties of base material.
Non destructive test results.
Hydrostatic test results.
Heat treatment.
Visual inspection.
Dimensional check.
Welding ends.
Ferrite content.
Surface condition.
Intergranular corrosion test.
The certificate shall state at least:
Mill's name.
Charge or batch number.
Test number.
Material standard or norm.
Dimensions and quantities delivered.
Number of samples tested.
Drawing number/calculation number.
8.2 CERTIFICATE COMPLIANCE
All certificates shall as a minimum comply with the relevant EN-standard.
8.3 MANUFACTURER'S REPORT
The Manufacturer’s report shall maintain a quality control system including all phases of
production, inspection and testing. The Manufacturer shall compile all required test reports for
the pipes, fittings and forgings, mentioned in this specification, containing all final data on design
material specifications, test results, welding ends preparation, certifications and time/temperature
graphs of the heat treatment.
For fittings made from pipe, the pipe base certificates shall be included.
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Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 105 of 151
9.0 MATERIAL SPECIFICATIONS AND TESTING REQUIREMENTS FOR PLATES,
PIPES, FITTINGS AND VALVES FOR DUPLEX STAINLESS STEELS
9.1 GENERAL REQUIREMENTS
Materials subject to approval of the Notified Body shall comply with all requirements and
stipulations dictated by the PED and the relevant harmonised material standards.
In accordance with Directive 2014/68/EU, involvement of the NoBo for piping is required when
classified in Category II and III. The classification shall be based on the medium (and phase), the
nominal diameter and the max. allowable pressure.
The following table provides the minimum sizes per category that may be subject to NoBo
approval.
SIZES SUBJECT TO NoBo APPROVAL
Piping
Class
Max.
Design
Pressure
Barg
Gas Service a) Liquid Service b)
Group 1
(Table 6)
Group 2
(Table 7)
Group 1
(Table 8)
Group 2
(Table 8)
II III II III
15DS 20.0 3" 8"
See N
ote
belo
w
6"
Cate
go
ry III o
nly
ap
plica
ble
if
pre
ssu
re e
xceed
s 500 b
arg
See N
ote
belo
w
15DSH 20.0 3" 8" 6"
30DS 51.7 1 ½" 6" 1 ½"
60DS 101.5 1 ½" 6" 1 ½"
90DS 155.2 1 ½" 6" 1 ½"
90DSH 155.2 1 ½" 6" 1 ½"
150DS 258.6 1 ½" 6" 1 ½"
250DS 418.0 1 ½" 6" 1 ½"
aGasses: gases, liquefied gasses, gasses dissolved under pressure, vapours and those liquids
whose vapour pressure at the maximum allowable temperature is greater than 0,5 bar above
normal atmospheric pressure of 1,013 bar (1013 mbar). bLiquids having a vapour pressure at the maximum allowable temperature of not more than 0,5
bar above normal atmospheric pressure of 1,013 bar (1013 mbar).
Note: As a conservative approach, group 2 liquid is not considered and covered under group 1.
Smaller branches of these lines up to the first blockvalve shall also be subject to NoBo approval.
The extent of material examination shall allow for unrestricted application.
For all butt weld end fittings, Supplier shall confirm compliance with company specification 505
‘specification for dimensional requirements of butt weld ends fittings’.
It is emphasised that only major points are highlighted in this specification; in case of conflict
and/or additional requirements, not covered in this specification, the most conservative
requirements will be binding.
All materials, including the certificates, shall be selected from approved material specifications.
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Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 106 of 151
9.2 BASE MATERIAL
The base material Werkstoff Nr 1.4462 for plates, pipes, fittings and valves shall be in accordance
with VdTüV Werkstoffblatt 418 except paragraphs 1 and 2 mentioned therein. The base material
Werkstoff Nr 1.4501 shall be in accordance with EN 10253-4. Both material Werkstoff Nr 1.4462
and Werkstoff Nr 1.4501 shall also be in accordance with a relevant Manufacturer's specification
approved by NoBo.
In addition to Werkstoffblatt 418, EN 10253-4 and/or Manufacturer's specification, values of
Charpy-V impact testing for base material shall be in accordance with this specification (paragraph
9.2.3).
Other material types, e.g. ASTM A790 S31803, shall be additionally tested to meet the
requirements of Werkstoffblatt 418 and this specification.
9.2.1 Chemical Composition
The chemical composition of the steel shall be within the limits as specified for Werkstoff Nr
1.4462 Table 8 (DIN X 2 CrNiMoN 22 5).
The Manufacturer shall make and certify in accordance with EN 10204-3.1.B / 3.1 the chemical
material composition (check analysis) of the total number of material charges.
The pitting Resistance Equivalent (PRE) for the material Werkstoff Nr 1.4462 shall be 33.0
minimum, The PRE for the material Werkstoff Nr 1.4501 shall be minimum 40. The PRE value shall
be calculated with the formula:
PRE = % Cr + 3.3 % Mo + 16 % N
9.2.2 Mechanical Properties
The mechanical properties of the pipes, fittings and flanges shall meet the requirements of VdTüV
418 as a minimum and are to be determined after fabrication and heat treatment.
9.2.3 Impact Test
See relevant paragraphs.
9.2.4 Corrosion Test
A corrosion test in accordance with ASTM A923 Test methode C and/or ASTM G48 Test methode
A @ 25°C for min. 24 hours is required. Acceptance criteria for G48-A shall be according to ASTM
G46, maximum allowable pitting, fig.2 A1, B1 and C1.
9.2.5 Ferrite/Austenite Ratio
The Ferrite content shall be determined in accordance with ASTM E 562 and shall be confirmed
with microphotographs. The preferred ratio is 50/50%. The allowable Ferrite content is 40 - 60%.
The presence of other phases than Ferrite or Austenite is not permitted.
Test 2% per lot with a minimum of one test per lot.
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Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 107 of 151
9.3 FABRICATION OF THE PIPES, FITTINGS AND FORGINGS, GENERAL REQUIREMENTS
9.3.1 Fabrication
The pipes and fittings shall be made by seamless method. Pipes may be either hot or cold finished.
Seamless elbows, bends, tees and reducers shall be made from pipe.
Tees, branch connections, reducers and flanges may be forged and machined.
Before commencing production of the pipes and fittings, Supplier shall furnish Company and
NoBo with the following information:
1) A material specification, e.g. type and quality, chemical and mechanical properties of the
materials to be used for each part.
2) The heat treatment methods to be used.
3) The laboratory for mechanical testing approved by the certifying authority.
4) Where applicable, the non-destructive test facilities approved by either NoBo or Company.
9.3.2 Welding End Preparation
The welding end preparation shall be in accordance with ASME B.16.25.
Equipment used for end preparation and cleaning (e.g. plasma cutting, grinding, brushing etc.)
shall cause no detrimental metallurgical effects upon edges to be welded.
Ends shall be left free of slag, spatter, scale, dirt, grease, salt, protective coating or other foreign
matter which might effect the quality of the weld and the cut surface shall be ground to a smooth
bright uniform surface by removing approximately 0.5mm of metal.
After grinding the weld ends shall be visually examined to ensure freedom from defects.
9.3.3 Heat Treatment
All pipes, fittings and flanges shall be furnished in the heat treated condition. Heat treatment may
be waived in the case of cold formed bends, where unallowable deformation may occur as a result
of quenching. This shall be in agreement between parties concerned and to be discussed for each
individual case.
9.3.4 Surface Condition
The surface of the pipes and fittings shall be cleaned, pickled - passivated, so as to remove any
dirt, stains, scale, etc. and to yield an uniform surface condition.
Flanges shall be completely machined. Surface treatment by grinding can only be performed after
approval from Company.
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Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 108 of 151
9.4 PIPES
Material : Werkstoff Nr 1.4462. to NEN-EN 10216-5 or ASTM A790-UNS
S31803 + additional testing to meet requirements as per VdTüV
418.
Certificate : See paragraph 8.0 and 8.1.
Impact Test : Impact test @ -40 °C in accordance with
NEN-EN 10216-5 (Transverse) and NEN-EN-ISO 148.
Ultrasonic Examination : Required 100% for De 4" and larger to NEN-EN 10216-5.
Dye Penetrant Inspection : As a check on the occurrence of lamination on pipe ends
where no U.S. examination has been carried out.
Hydro test : All tubes be hydraulically tested.
Test pressures shall be:
Herein:
Re : Yield stress @ 20 °C.
dd : Wall thickness,
De : Outside diameter.
Marking : The tubes shall be legibly marked to show:
- Identification symbols for the type of steel.
- The brand of the manufacturer must be a specific mark
and not a combination of standard characters.
- Symbols, letters, or numbers which relate to the
certificates, tubes and (if testing per heat is required) heats
to each other.
- The marks of the inspection body (if applicable).
- The marks shall be chosen such that confusion with other
tubes is not possible.
Method of Marking : The marks shall be low stress die-stamped. If stamping is
presenting itself injurious to the quality of the material,
another effective method of marking shall be followed.
In case of tubes with De = 2" and smaller, the marks may be
shown on the label firmly attached to the bundle or to the
packed quantity of tubes. Marking ink shall be free from
halogens, metal ions or other detrimental elements.
Applicable Code : VdTüV 418 - Ferritisch Austenitischer Wals- und
Schmiedestahl Werkstoff Nr 1.4462,
NEN-EN 10216-5, ASME B36.10, ASME B36.19, NEN-EN 13480,
ASME B31.3.
De
dPtthanbar
De
dIf dd 2
.Re.8702
.Re.8
De
dPtbarthanbar
De
dIf dd 2
.Re.870702
.Re.8
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9.5 WELDING NECK FLANGES AND BLIND FLANGES
Material : Werkstoff Nr 1.4462 to NEN-EN 10222-5 or ASTM A182-F51 +
additional testing to meet requirements as per VdTüV 418.
Certificate : See paragraph 8.0 and 8.1.
Mechanical Tests : Mechanical testing as per 8.1. One sample per batch of
identical forgings, is required.
Impact Test : Impact test @ -40 °C in accordance with
NEN-EN 10216-5 (Transverse) and NEN-EN-ISO 148.
Ultrasonic Examination : Required for Thickness over 100 mm.
Markings : Each forging shall be legibly marked to show:
- Identification symbols for the type of steel.
- The brand of the manufacturer, this must be a specific mark
and not a combination of standard characters.
- Symbols, letter or numbers which relate the certificates,
forgings and heats to each other.
- The marks of the inspection body (if applicable).
The marks shall be chosen such that confusion with other
forgings is not possible.
Method of Marking : The marks shall be low stress die-stamped. If stamping is
presenting itself injurious to the quality of the material, another
effective method of marking shall be followed.
Marking ink shall be free from halogens, metal ions or other
detrimental elements.
Applicable Code : VdTüV 418 - Ferritisch Austenitischer Wals- und
Schmiedestahl Werkstoff Nr 1.4462, NEN-EN 10222-5,
ASME B 16.5, NEN-EN 13480, ASME B31.3.
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9.6 SEAMLESS ELBOWS, TEES, REDUCERS (MANUFACTURED FROM PIPE)
Material : Werkstoff Nr 1.4462 to NEN-EN 10253 or ASTM A815-UNS-
S31803 + additional testing to meet requirements as per VdTüV 418.
Basic Material : Manufactured from base pipe material. Additional material
requirements for base material to section 9.4 shall be met.
Certificate : See paragraph 8.0 and 8.1.
Impact Test : Impact test @ -40 °C in accordance with
NEN-EN 10253 (Transverse) and NEN-EN-ISO 148.
Hardness Test : 10% of fittings from pipe 4" and smaller at 3 points in the most
deformed areas. Maximum hardness is 305 HV 30 with a
maximum variation of 100 HV 30.
Dye penetrant examination : All finished fittings
Dimensional Requirements : Supplier to confirm each fitting will meet the minimum
dimensional requirements as specified in company
specification 505 ‘specification for dimensional requirements
for butt weld end fittings’.
Manufacturer : Design must take place under a certified quality system based
on ISO 9001. The manufacturer must take place under a
certified quality system based on ISO 9001. An accredited
certification body must perform the certification. The type of
appurtenance must fall within the scope of the certification.
Markings : Each fitting shall be legibly marked to show:
- Identification symbols for the type of steel.
- The brand of the manufacturer, this must be a specific mark
and not a combination of standard characters.
- Symbols, letters or numbers which relate the certificates,
and (if testing per heat is required) heats to each other.
- The marks of the inspection body (if applicable)
- Mark showing surface examination.
The marks shall be chosen such that confusion with other
fittings is not possible.
Method of Marking : The marks shall be low stress die-stamped. If stamping is
presenting itself injurious to the quality of the material, another
effective method of marking shall be followed.
In the case of the fittings with De = 2" and smaller the marks
may be shown on a label firmly attached to the bundle or to
the packed quantity of fittings.
Applicable Code : VdTüV 418 - Ferritisch Austenitischer Wals- und Schmiedestahl
Werkstoff Nr 1.4462, NEN-EN 10253-5, NEN-EN 10216-5,
ASME B16.9, NEN-EN 13480 and BPV Code, Section VIII,
Division 1 relevant section, where indicated in the ASME B31.3.
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9.7 CAPS (HEADS, MANUFACTURED FROM PLATE)
Material : Werkstoff Nr 1.4462 to NEN-prEN 10253-5 or ASTM A815-
UNS-S31803 + additional testing to meet requirements as per
VdTüV 418.
Basic Material : Manufactured from base plate material. Additional material
requirements for base material to section 9.11 shall be met.
Certificate : See paragraph 8.0 and 8.1.
Impact Test : Impact test @ -40 °C in accordance with
NEN-EN 10028-7 (40J) (Transverse) and EN-ISO 148.
Dye penetrant examination : All finished caps.
Dimensional Requirements : Supplier to confirm each fitting will meet the minimum
dimensional requirements as specified in company
specification 505 ‘specification for dimensional requirements
for butt weld end fittings’.
Manufacturer : Design must take place under a certified quality system based
on ISO 9001. The manufacturer must take place under a
certified quality system based on ISO 9001. An accredited
certification body must perform the certification. The type of
appurtenance must fall within the scope of the certification.
Markings : Each cap shall be legibly marked to show:
- Designation of the material size, pressure, schedule number
etc.
- The brand of the manufacturer, this must be a specific mark
and not a combination of standard characters.
- Symbols, letters or numbers which relate the certificates,
and cap to each other.
- The mark of the inspection body (if applicable).
- A mark showing that the surface examination has been
passed successfully.
The marks shall be chosen such that confusion with other caps
is not possible.
Method of Marking : The marks shall be low stress die-stamped. If stamping is
presenting itself injurious to the quality of the caps, another
effective method of marking shall be followed.
Marking ink shall be free from halogens, metal ions or other
detrimental elements.
Applicable Code : VdTüV 418 - Ferritisch Austenitischer Wals- und Schmiedestahl
Werkstoff Nr 1.4462, NEN-EN 10253-5, NEN-EN 10216-5,
ASME B16.9, NEN-EN 13480 and BPV Code, Section VIII,
Division 1 relevant section, where indicated in the ASME B31.3.
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9.8 FORGED FITTINGS (WELDOLETS, ELBOWLETS ETC.)
Material : Werkstoff Nr 1.4462 to NEN-EN 10222-5 or ASTM A182-F51 +
additional testing to meet requirements as per VdTüV 418.
Certificate : as per paragraph 8.0 and 8.1.
Impact Test : Impact test @ -40 °C in accordance with
NEN-EN 10222-5 (Transverse) and NEN-EN-ISO 148.
Ultrasonic Examination : For Thickness over 100 mm.
Marking : Each forging shall be legibly marked to show:
- Identification symbols for the type of steel.
- The brand of the manufacturer, this must be a specific mark
and not a combination of standard characters.
- Symbols, letters or numbers which relate the certificates,
forgings and heat to each other.
- The marks of the inspection body (if applicable).
The marks shall be chosen such that confusion with other
forgings is not possible.
Method of Marking : The marks shall be low stress die-stamped. If stamping is
presenting itself injurious to the quality of the forging another
effective method of marking shall be followed.
Marking ink shall be free from halogens, metal ions or other
detrimental elements.
Applicable Code : VdTüV - 418 -Ferritisch Austenitische Wals- und Schmiedestahl,
NEN-EN 10222-5, Bonny Forge Standard or equal for olet
fittings, ASME B16.11, NEN-EN 13480, ASME B31.3.
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9.9 STUD BOLTS & NUTS (FOR FLANGE CONNECTIONS ONLY)
Standards : NEN-EN 10269, ASME B 18.2.1, ASME B 18.2.2., ASME B1.1.
Threads : for D=1" and smaller UNC
for D=1.1/8" and larger 8UN
Bolts
Material : ASTM A 320 Grade L7. Compatible to 42CrMo4 to EN 10269
Certificate : 3.1
Impact Test : Impact test at low temperature to NEN-EN 10269 and in
accordance with NEN-EN-ISO 148
Wet Magnetic Particle : Required for D larger than 2" (51 mm).
Inspection
Nuts
Material : ASTM A194 Grade 7.
Certificate : 3.1
Impact Test : To EN 10269 and in accordance with EN-ISO 148
Bolts & Nuts
Coating : Aluminium plated and PTFE coated to company specification
524 ‘specification for coating of threaded fasteners’.
Material Certificate : Material Certificates shall state at least:
- Steel making process.
- Mill's name.
- Charge or batch number.
- Test number.
- Material standard or norm.
- Chemical analysis (ladle).
- Mechanical data, certified by the quality control department
of the manufacturer, which shall be independent of the
production line
- Temperature of manufacturer and type of heattreatment, if
required in the material standard, norm or order.
- Results of examinations as mentioned in the materials
standard/norm and in additional requirements (if any).
- Dimensions including wall thickness.
- Number of different samples tested as mentioned in
material standard or norm and in additional requirements (if
any).
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Markings : Bolts, nuts and bars intended for the manufacture thereof shall
be legibly marked to show:
- Identification symbols for the type of steel.
- The brand of the manufacturer, this must be a specific mark
and not a combination of standard characters.
- Additional requirements for bolts with diameter larger than
2" ( 51 mm) as follows:
- Symbols, letters or numbers which relate the certificates,
heats and product to each other.
- The marks of the inspection body (if applicable).
The marks shall be chosen such that confusion with other bolts,
nuts and bars is not possible.
Method of Marking : The marks shall be low stress die-stamped.
In the case of bar stock with diameter smaller than 26 mm the
marks may be shown in a label firmly attached to the packed
quantity of bars.
Applicable Code : NEN-EN 10269, ASME B 18.2.1 & B 18.2.2
For lengths reference is made to ASME B 16.5, NEN-EN 13480,
ASME B31.3.
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9.10 VALVES, APPURTENANCES
Material : Werkstoff Nr 1.4462, 1.4470 or Nr 1.4501.
Certificate : For the base material of the pressure parts the extent of the
examination and type of certificate required shall be according
to the relevant section of this specification (section 8.0 for
forgings, section 10.0 for castings). For the finished valve,
required certificate is 3.1 and an EC Declaration of Conformity.
The data to be included in the certificate for the finished valve:
- Manufacturer's name and mark.
- Type of valve.
- Nominal pressure and size.
- Material designation of the pressure parts (body, cover,
etc.) with unequivocal, verifiable references to one or more
attached material certificates.
- Number of valve bodies to which certificate applies.
- Mark by which valve can be related to certificate.
- Pressure test standard (if applicable).
- CE marking shall be applied in accordance with the
requirements of PED 2014/68/EU.
Manufacturer : Design must take place under a certified quality system based
on ISO 9001. The manufacturer must take place under a
certified quality system based on ISO 9001. An accredited
certification body must perform the certification. The type of
appurtenance must fall within the scope of the certification.
Pressure Test : Before application of any protective coating, the valve shall be
subjected to pressure tests in accordance with the applicable
valve specification.
Other Tests and Examinations : As per applicable valve design code.
For additional requirements for forgings see sections 9.5, for
castings see section 10.0. Valves shall be fire safe in accordance
with the applicable specification.
Marking : Valves and appurtenances shall be legibly marked in a
permanent way to show at least:
- The brand of the manufacturer.
- Nominal size.
- Nominal pressure.
- Identification symbols for the type of steel
- Symbols, letters or numbers which relate certificates and
valves to each other, supplier shall ensure that these shall
also be legable after coating.
- The mark of the inspection body (if applicable).
- Non destructive tests carried out.
- A fixed Stainless Steel 316 tagplate with the valve tag
number.
Applicable Code : ASME B 16.34, API 6D, BS5351, BS 6755 Part 2, API 607, API 6FA.
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9.11 SPECTACLES, BLINDS AND SPACERS
Material : Werkstoff Nr 1.4462 – VdTÜV-418 (NEN-EN 10028-7) or ASTM
A240-UNS S31803 and additional testing to meet requirements
as per VdTüV 418.
Certificate : as per paragraph 8.0 and 8.1.
Mechanical Tests : Mechanical testing as per 8.1. One sample per batch of
identical forgings, is required.
Impact Test : Impact test @ -40 °C in accordance with NEN-EN 10028-7 and
NEN-EN-ISO 148.
Ultrasonic Examination : For internal defects
Dye Penetrant Examination : Entire examination of surface.
Markings : Each plate shall be legibly marked to show:
- Identification symbols for the type of steel.
- The brand of the manufacturer, this must be a specific mark
and not a combination of standard characters.
- Symbols, letters or numbers which relate the certificates,
plates and heats to each other.
- The marks of the inspection body (if applicable).
The marks shall be in such manner that confusion with other
plates is not possible.
Method of Marking : The symbols shall be low stress die-stamped such that they
read in the direction of rolling (see below).
1 2 3 (direction of rolling) A B C
If stamping is presenting itself injurious to the quality of the material another effective method of marking shall be followed.
This is always acceptable if WT is smaller than 5 mm.
Applicable Code : NEN-EN 10028-7, API 590, NEN-EN 13480, ASME B31.3
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10.0 FERRITIC/AUSTENITIC CASTINGS
The material for castings shall basically be supplied in accordance with NEN-EN 10213 Werkstoff
Nr 1.4470 (GX2CrNiMoN22-5-3) with modifications as per this specification.
10.1 BASE MATERIAL
10.1.1 Chemical Composition
The chemical composition of the castings as determined by the methods outlined in ASTM E353
shall basically conform to the requirements specified in NEN-EN 10213, table 2. Any additional
element shall be stated on the certificate and shall have written approval of parties concerned.
No deviation from this basic composition will be permitted, Heat/Ladle analysis should conform
to product analysis.
Mill certificates shall be provided for each heat and shall show a pitting resistance equivalent
(PRE) of 33.0 minimum, calculated with the following formula:
PRE = % Cr + 3.3 x % Mo + 16 x % N.
The Ferrite content shall range between 40% and 60% as determined by the methods outlined in
paragraph 10.2.6 of this specification, to be determined after final heat treatment.
10.1.2 Heat Analysis
The chemical composition shall be determined for each HEAT of steel. The analysis shall cover all
the elements specified in paragraph 10.1.1 and the Manufacturer shall report each analysis
performed on mill certificates.
10.1.3 Product Analysis (After heat treatment)
The product chemical composition shall be determined once per HEAT.
The analysis shall cover all elements specified in paragraph 10.1.1.
The Manufacturer shall report each analysis performed of the material on mill certificates.
10.2 PHYSICAL PROPERTIES AND TESTS
In addition to the requirements as specified in the applicable codes and standards the following
shall apply.
10.2.1 Mechanical Properties
At +20oC the ultimate tensile and specified minimum yield strength shall conform to the
following values:
UTS = 620 - 800 MPa
SMYS = 450 MPa
The material shall meet an elongation requirement of minimum 20% on an approved gauge
length.
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10.2.2 Frequency of Testing
Mechanical testing shall be performed on each heat of the melting furnace. For castings with a
mass > 1000 kg: one mechanical test per casting.
10.2.3 Re-tests
If one of the test specimens fails to meet the specified requirements, the castings may only be
accepted on the basis of re-tests on samples from the same lot. Number of re-tests to be agreed
with parties concerned.
10.2.4 Notch Ductility Tests
Charpy-V notch impact tests shall be performed in accordance with EN-ISO 148. The impact test
temperature shall be minus 20oC and at this temperature, the material shall display the following
energy values for full size (10 mm x 10 mm) specimens:
Minimum Average Value : 60 Joules
Minimum Individual : 42 Joules.
10.2.5 Hardness Tests and Ferrite/Austenitic Ratio
A macro section shall be taken and a hardness survey shall be made on the cast parts after final
heat treatment. Hardness shall not exceed 286 HV. The macro section shall be polished and
etched to reveal the grain structure and differentiate the phases.
The ferrite content shall be between 40 and 60 % and shall be determined by point-counting or
line analysis in accordance with ASTM E562 methods and be confirmed by micro photographs.
The presence of phases other than ferrite oraAustenite shall be a cause for rejection.
10.2.6 Test Coupons
Test coupons shall be integrally cast and shall correspond to the decisive wall thickness of the
casting. If the design of the castings is such that test coupons could not be attached thereon,
written approval shall be obtained from the parties concerned. Test coupons shall be solution
annealed together with the casting.
10.2.7 Radiographic Examination
As per ASME B16.34, examination must be performed on 10% of each cast, (all critical areas) after
the last heat treatment.
10.2.8 Corrosion Test
A corrosion test in accordance with ASTM A923 Test method C and or ASTM G48 Test method A
@ 25 °C for min. 24 hours is required. Acceptance criteria for G48-A shall be according to ASTM
G46, maximum allowable pitting, fig.2 A1, B1 and C1.
10.2.9 Surface Examination
The surface of the casting shall be 100% dye penetrant inspected.
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10.3 PROCESS OF MANUFACTURE AND HEAT TREATMENT
10.3.1 Process of Manufacture
The steel shall be made by the electric furnace or electric induction process.
10.3.2 Heat Treatment
Heat treatment for castings of Duplex stainless steel material shall be performed in a furnace
heated by burners with gas alimentation. The gas shall not contain sulphur and/or sulphur
component and care must be taken to prevent direct impingement of the flame on the part being
treated.
10.3.3 Heat Treatment Procedure (Further to EN 10213)
The castings shall be placed in the furnace at ambient temperature after cooling from the casting
temperature.
The heat treatment cycle shall be as follows:
From 20oC - to 1120oC + 20oC with maximum heating rate 200oC/h.
Soaking of 1 hour per 25 mm of maximum thickness of the cast parts at 1120oC + 20oC.
Immediate water quenching of the parts.
Any deviation from the above requires written approval from all parties concerned.
The complete heat treatment cycle must be monitored by the furnace thermocouples excluding
the quenching operation. The thermocouples shall be placed to show that all material reached
required temperature.
The single heat treatment shall be recorded on a certificate accompanied by the time/temperature
charts.
10.3.4 Re-heat Treatment
In general castings shall not be re-heated. If re-heating is required, written approval shall be
obtained from Company.
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10.4 WORKMANSHIP, VISUAL INSPECTION AND REPAIR OF DEFECTS
10.4.1 Visual Inspection
In addition to the dye penetrant examination each casting shall be visually inspected after heat
treatment and surface blasted with corrund. If, during inspection, the rejection rate for a certain
type of defects exceeds 5%, Company reserves the right to increase the level of quality control
until the problem is rectified.
10.4.2 Base Material Repair by Welding
Any corrective action on base material requires written approval from Company. In case repair is
granted, the following shall apply.
Repair shall be made by using a welding procedure and welding qualified operators.
The composition of the deposited weld metal shall be similar to that of the casting.
After weld repairs, the casting shall be given a solution-heat treatment.
Post weld heat treatment, if required, shall be in accordance with paragraph 10.3.3.
10.5 MARKING
10.5.1 Casting Marking
Each casting shall be externally marked with the following information:
Manufacturer's name or trade mark.
Reference drawing number / model number.
Valve diameter and Class rating (if used for valves).
Material grade.
Heat number.
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10.6 DOCUMENTATION/CERTIFICATION
Supplier shall furnish all documentation in the English language.
Supplier's documentation procedures shall be subject to review and approval by Company.
For piping components subject to approval, manufacturer shall have and maintain a NoBo
approved ISO quality control system and consequently, a Manufacturer’s Certificate of Conformity
as per PED Annex I, section 4.3 shall be provided.
Besides the above, the type and content of other required certificates are indicated below.
In case of not compliant with the above, certificates to 3.1.C/3.2 are required.
Required certificates for castings.
Certified mill test certificates of all specified chemical analysis and mechanical tests, which shall
include, but not be limited to the following information:
Ladle analysis.
Check analysis.
Full mechanical test results.
Non-destructive test (radiography, wet magnetic particle inspection and dye penetrant
examination).
Certificates to 3.1
Heat treatment certificates for each lot, including time/temperature re.g.istration chart.
Hardness.
Microstructure.
PRE.
Corrosion test.
Ferrite content.
The certificate shall state at least:
Mill's name.
Charge or batch number.
Test number.
Material standard or norm.
Dimension and quantities delivered.
Number of samples tested.
Drawing number/calculation number.
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11.0 PIPING CLASSIFICATION INDEX
Specification
Piping Class Nominal Service Rating Service Symbol
15DS………………. ASME 150 ………………..…...…………. 1, 9
15DSH…………….. ASME 150 ……………………………….. 1, 6
30DS………………. ASME 300 …………..…………………….1, 9
60DS………………. ASME 600 …………………………………1, 9
90DS………………. ASME 900 …………………………………1, 9
90DSH…………….. ASME 900 …………………………………1, 9
150DS……………… ASME 1500 ………………………………..1, 9
250DS……………… ASME 2500 …………………….………….1, 9
11.1 SERVICE SYMBOLS FLOW MEDIUM
1…………………… Hydrocarbons between -20°C and 180°C, Fuel Gas (corrosive).
9…………………… Brine/Produced Water (corrosive).
6…………………… Glycol between -20°C and 225°C
11.2 LINE NUMBERING CODE
The line number shall contain the following data, i.e.: 6" (90DS – 1 – C – 3) T =
6 (90DS - 1 - C - 3) T
Insulation class (see linelist).
Line sequential number.
Option rectifier (see linelist).
Product identifier for fluid in pipe.
Piping Specification Number (Class).
Nominal pipe size in inches.
11.3 PRESSURE/TEMPERATURE LIMITS
Unless required for process reasons, maximum pressure/temperature limits shall not be used in
the line list. Intermediate pressures and temperatures may be determined by linear interpolation.
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Class 15DS
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 123 of 151
12.0 PIPING SPECIFICATIONS
12.1 PIPING SPECIFICATION CLASS 15DS
ASME 150 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Services in Line Number
Hydrocarbons, corrosive 1
Produced Water, corrosive 9
Materials according to Sections 7.0, 9.0 and 10.0
Pressure-Temperature Limits (ASME 150, Duplex Stainless Steel according Material Group 2.8)
Temperature °C -20/38 50 100
Pressure Barg 20.0 19.5 17.7
PIPE
Material Size Description
1.4462 ½" - ¾" Schedule 80S, Seamless.
1" - 2" Schedule 40S, Seamless.
3" - 16" Schedule 10S, Seamless.
FITTINGS
Elbows, Tees & Reducers
Material Size Description
1.4462 ½" – 16" Butt Weld, WE tapered to match pipe
schedule. See specification 505 for
dimensional requirements.
Flanges
Material Size Description
1.4462 ½" – 16" ASME 150 RF, WN, bore to match ID
of pipe.
Stud Bolts & Nuts
Material Size Description
ASTM A320 Grade 7/ All sizes Stud Bolts and Nuts, Aluminium plated
A194 Grade 7 and PTFE coated.
Gaskets
Material Size Description
All sizes 1,5 mm Non-Asbestos Ring Gasket.
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Class 15DS
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 124 of 151
Branch Connections See Appendix I Sheet 10B
Closures (Caps & Blind Flanges)
Material Size Description
1.4462 ½" – 16" Weld Caps or Blind Flanges.
VALVES
(Note 1)
Ball Valves Size Description
½" - 6" ASME 150, Flanged Ends, RF,
Full Bore, Lever Operated.
Material: 1.4462
Tag nr: V-762
8” - 16” ASME 150, Flanged Ends, RF,
Full Bore, Gear Operated.
Tag nr: V-747
2" - 6" ASME 150, Flanged Ends, RF,
Reduced Bore, Lever Operated.
Tag nr: V-763
8" - 16" ASME 150, Flanged Ends, RF,
Reduced Bore, Gear Operated.
Tag nr: V-764
Globe Valves ½" - 8" ASME 150, Flanged Ends, RF, OS&Y.
Material: 1.4462
Tag nr: V-419
Check Valves
Horizontal or ½" - 1½" ASME 150, Flanged Ends, RF,
Vertical Up Flow Ball Type, Bolted Bonnet .
Material: 1.4462
Tag nr: V-558
Horizontal or 2" - 8" ASME 150, Duo Disc Design,
Vertical Up Flow Wafer Type, RF Facing.
Material: 1.4462
Tag nr: V-500
Needle Valves ½" - 1½" ASME 150, Gauge Valve,
Flanged Ends, RF, OS&Y.
Material: 1.4462
Tag nr: V-620
(Note 4) ½" - 1" ASME 150, monoflange Ends
RF/NPT ½"
Material: 1.4462
Tag nr: V-605
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Class 15DS
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 125 of 151
Note 1. For power operated valves reduced bore use V-763 (Size 2" and above),
extended with suffix P e.g. V-763-P.
Note 2. For power operated valves full bore use V-762 (Size 1” and above),
extended with suffix P e.g. V-762-P.
Note 3. Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 530PA763100 and hydraulic as e.g. 530PH763100.
Note 4. Monoflange valve to be used as block valve between piping and instruments.
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Class 15DSH
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 126 of 151
12.2 PIPING SPECIFICATION CLASS 15DSH
ASME 150 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Services in Line Number
Hydrocarbons, corrosive 1
Glycol 6
Materials according to Sections 7.0, 9.0 and 10.0
Pressure-Temperature Limits (ASME 150, Duplex Stainless Steel according Material Group
2.8)
Temperature °C -20/38 50 100 150 200 225
Pressure Barg 20.0 19.5 17.7 15.8 13.9 12.9
PIPE
Material Size Description
1.4462
½" - ¾"
1" - 2"
3" - 10"
Schedule 80S, Seamless.
Schedule 40S, Seamless.
Schedule 10S, Seamless.
FITTINGS
Elbows, Tees & Reducers
Material
1.4462
Size
½" – 10"
Description
Butt Weld, WE tapered to match pipe
schedule. See specification 505 for
dimensional requirements.
Flanges
Material
1.4462
Size
½" – 10"
Description
ASME 150 RF, WN, bore to
match ID of pipe.
Stud Bolts & Nuts
Material
ASTM A320 Grade 7/
A194 Grade 7
Size
All sizes
Description
Stud Bolts and Nuts, Aluminium
plated and PTFE coated.
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Class 15DSH
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 127 of 151
Gaskets
Material
Size
All sizes
Description
Spiral Wounds, 4.5mm thick, 316L
metal strip, Non-Asbestos filler
material, Stainless Steel, External
centring ring.
Branch Connections See Appendix I Sheet 22B.
Closures (Caps &
Blind Flanges)
Material
1.4462
Size
½" – 10"
Description
Weld Caps or Blind Flanges.
VALVES
(Note 1)
Ball Valves
½" - 6"
ASME 150, Flanged Ends, RF, Full Bore,
Lever Operated.
Material: 1.4462
Tag nr: V-762-H
2" - 6" ASME 150, Flanged Ends, RF, Reduced
Bore, Lever Operated.
Tag nr: V-763-H
8" - 10" ASME 150, Flanged Ends, RF, Reduced
Bore, Gear Operated.
Tag nr: V-764-H
Globe Valves ½" - 8" ASME 150, Flanged Ends, RF, OS&Y.
Material: 1.4462
Tag nr: V-419-H
Check Valves
Horizontal or
Vertical Up Flow
½" - 1½" ASME 150, Flanged Ends, RF,
Ball Type, Bolted Bonnet .
Material: 1.4462
Tag nr: V-558-H
Horizontal or
Vertical Up Flow
2" - 8" ASME 150, Duo Disc Design, Wafer
Type, RF Facing.
Material: 1.4462
Tag nr: V-500-H
Needle Valves
½" - 1½"
ASME 150, Gauge Valve, Flanged Ends,
RF, OS&Y.
Material: 1.4462
Tag nr: V-620-H
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Class 15DSH
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 128 of 151
(Note 4) ½" - 1" ASME 150, monoflange Ends
RF/NPT ½"
Material: 1.4462
Tag nr: V-605-H
Note 1. For power operated valves reduced bore use V-763-H (Size 2" and above),
extended with suffix P e.g. V-763-HP.
Note 2. For power operated valves full bore use V-762-H (Size 1" and above), extended
with suffix P e.g. V-762-HP.
Note 3. Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 53HPA763100 and hydraulic as e.g. 53HPH763100.
Note 4. Monoflange valve to be used as block valve between piping and instruments.
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Class 30DS
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 129 of 151
12.3 PIPING SPECIFICATION CLASS 30DS
ASME 300 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Service in Line Number
Hydrocarbons, corrosive 1
Produced water, corrosive 9
Materials according to Sections 7.0, 9.0 and 10.0
Pressure/Temperature Limits (ASME 300, Duplex Stainless Steel according Material Group
2.8)
Temperature °C -20/38 50 95
Pressure Barg 51.7 51.3 49.5
PIPE
Material
1.4462
Size
½" - ¾"
Description
Schedule 80S, Seamless.
1" - 6" Schedule 40S, Seamless.
8" - 10" Schedule 20, Seamless.
FITTINGS
Elbows, Tees &
Reducers
Base Material
1.4462
Size
½" – 10"
Description
Butt Weld, WE tapered to match pipe
schedule. See specification 505 for
dimensional requirements.
Flanges
Material
1.4462
Size
½" – 10"
Description
ASME 300, RF Weld Neck, Bore to
match ID of Pipe.
Stud Bolts & Nuts
Material
ASTM A320 Grade
L7/ A194 Grade 7
Size
All sizes
Description
Stud Bolts and Nuts Aluminium
plated and PTFE coated.
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Class 30DS
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 130 of 151
Gaskets
Material
Size
All sizes
Description
Spiral Wound 4.5 mm thick,
316L metal strip,Non-asbestos filler
material, Stainless Steel external
centring ring.
Branch Connections See Appendix I Sheet 11B
Mat:1.4462
Closures (Caps & Blind Flanges)
Material Size Description
1.4462 ½" – 10" Weld Caps or Blind Flanges.
VALVES
Size Description
Ball Valves
½" - 1½"
2" - 6"
2” – 6”
8 " - 10"
ASME 300, Flanged Ends, RF, Reduced
Bore, Lever Operated.
Material: 1.4462
Tag nr: V-765
ASME 300, Flanged Ends, RF, Reduced
Bore, Lever Operated.
Tag nr: V-773
ASME 300, Flanged Ends, RF, Full Bore,
Lever Operated.
Tag nr: V-739
ASME 300, Flanged Ends, RF, Reduced
Bore, Gear Operated.
Tag nr: V-768
Globe Valves ½" - 8" ASME 300, Flanged Ends, RF, OS&Y
Bolted Bonnet.
Material: 1.4462
Tag nr: V-420
Check Valves
Horizontal or
Vertical Up Flow
½" - 1½" ASME 300, Flanged Ends, RF,
Ball check
Material: 1.4462
Tag nr: V-561
Horizontal or
Vertical Up Flow
2" - 10"
ASME 300, RF Facing, Dual Plate
Design, Wafer Type.
Tag nr: V-562
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Class 30DS
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 131 of 151
Needle Valve
For P.I.'s only
(Note 3)
½"
½" - 1"
ASME 300, Gauge Valve, Flanged
Ends, RF, Rising Stem, OS&Y,
Renewable Seat.
Material: 1.4462
Tag nr: V-621
ASME 300, monoflange (needle valve)
Ends RF/RPT ½"
Material: 1.4462
Tag nr: V-635
Note 1. For power operated valves reduced bore use V-773 (Size 1" and above),
extended with suffix P e.g. V-773-P.
Note 2. Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 530PA773080 and hydraulic as e.g. 530PH773030.
Note 3. Monoflange valve to be used as block valve between piping and instruments.
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Class 60DS
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 132 of 151
12.4 PIPING SPECIFICATION CLASS 60DS
ASME 600 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Services in Line Number
Hydrocarbons, corrosive 1
Produced Water, corrosive 9
Materials according to Section 7.0, 9.0 and 10.0
Pressure/Temperature Limits (ASME 600, Duplex Stainless Steel according Material Group 2.8)
Temperature °C -20/38 50 95
Pressure Barg 103.4 103.4 101.5
PIPE
Material Size Description
1.4462 ½" - ¾" Schedule 80S, Seamless.
1" – 6” Schedule 40S, Seamless.
8" - 16" Schedule 40, Seamless.
FITTINGS
Elbows, Tees, and Reducers
Material Size Description
1.4462 ½" - 16" Butt Weld, WE tapered to match pipe
schedule. See specification 505 for
dimensional requirements
Flanges
Material Size Description
1.4462 ½" - 16" ASME 600, RF, WN, bore to match ID of
pipe
Studbolts and Nuts
Material Size Description
ASTM A320 Grade L7/ All sizes Stud Bolts and Nuts, Aluminium plated
ASTM A194 Grade 7 and PTFE coated
Gaskets
Material Size Description
All sizes Spiral wound 4.5mm thick, 316L SS
metal strip, non-Asbestos filler material,
SS external centring ring.
Branch Connections See Appendix 1 Sheet 23A and 23B.
Mat: 1.4462
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Class 60DS
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 133 of 151
Closures (Caps and Blind Flanges)
Material Size Description
1.4462 ½" - 16” Weld Caps or Blind Flanges.
VALVES (See Notes)
Ball Valves Size Description
½" – 1½” ASME 600, Flanged Ends, RF, Reduced Bore,
Lever Operated.
Material: 1.4462
Tag nr: V-772
2" – 6” ASME 600, Flanged Ends, RF, Reduced Bore,
Lever Operated.
Material: 1.4462
Tag nr: V-743
½" – 1½“ ASME 600, Flanged Ends, RF, Full Bore,
Lever Operated.
Material: 1.4462
Tag nr: V-783
2" – 6“ ASME 600, Flanged Ends, RF, Full Bore,
Lever Operated.
Material: 1.4462
Tag nr: V-740
8" – 16“ ASME 600, Flanged Ends, RF, Reduced
Bore, Gear Operated.
Material: 1.4462
Tag nr: V-784
6" – 16" ASME 600, Flanged Ends, RF, Full Bore,
Gear Operated.
Material: 1.4462
Tag nr: V-786
Globe Valves Size Description
½" - 3” ASME 600, Flanged Ends, RF, OS&Y
Bolted Bonnet, Plug Type Disc
Material: 1.4462
Tag nr: V-423
4" - 8" ASME 600, Flanged Ends, RF, OS&Y,
Bolted Bonnet, Plug Type Disc, Gear
Operated.
Material: 1.4462
Tag nr: V-424
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Class 60DS
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 134 of 151
Check Valves Size Description
Horizontal or ½" - 1½" ASME 600, Flanged Ends, RF, Ball or
Vertical Up Flow Piston check, Max. ΔP=0.5 Barg.
Material: 1.4462
Tag nr: V-566
Horizontal or 2" - 16" ASME 600, Dual Plate Design,
Vertical Up Flow Wafer Type, RF Facing.
Material: 1.4462
Tag nr: V-569
Needle Valves Size Description
½" ASME 600, Gauge Valve, Flanged Ends,
RF, OS&Y, Rising Stem.
Material : 1.4462
Tag nr: V-624
(Note 8) ½" – 2" ASME 600, Monoflange (Needle valve),
Ends RF/NPT ½"
Material: 1.4462
Tag nr: V-636
Note 1 Full bore valves to be used for relief service, risers or critical separator service only.
Note 2. Valves 2" and larger to have trunnion mounted ball.
Note 3 Valves for ESD or pigging service to be double block and bleed and equipped with
secondary sealing.
Note 4. For power operated valves reduced bore, use V-767-P (Size 1" thru 6") and
V-784-P (Size 8" and above)
Note 5. For power operated valves full bore, use V-783-P (Size 1" thru 4") and V-786-P
(Size 6" and above)
Note 6. Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 53OPA784030.
Note 7. Power operated valve with hydraulic driven actuator shall be indicated with H as
fifth code digit e.g. 53OPH786030.
Note 8. Monoflange valve to be used as block valve between piping and instruments.
Note 9. For production/test manifold use only piston type valve V-748-PA or V-748
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Class 90DS
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 135 of 151
12.5 PIPING SPECIFICATION CLASS 90DS
ASME 900 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Service in Line Number
Hydrocarbons, corrosive 1
Produced Water, corrosive 9
Materials according to Sections 7.0, 9.0 and 10.0
Pressure/Temperature Limits (ASME 900, Duplex Stainless Steel according Material Group 2.8)
Temperature °C -20/38 50 95
Pressure Barg 155.2 153.8 148.6
PIPE
Material
Size
Description
1.4462 ½" - ¾" Schedule 80S, Seamless
1" - 6" Schedule 40S, Seamless
8" - 16" Schedule 60, Seamless
FITTINGS
Elbows, Tees &
Reducers
Material
1.4462
Size
½" – 16"
Description
Butt Weld, WE tapered to match pipe
schedule. See specification 505 for
dimensional requirements.
Flanges
Material
1.4462
Size
2" and smaller
Description
ASME 1500, RTJ, WN, bore to match
ID of pipe.
3" – 16" ASME 900, RTJ, WN, bore to match ID
of pipe.
Stud Bolts & Nuts
Material
ASTM A320 Grade L7/
A194 Grade 7
Size
All sizes
Description
Stud Bolts and Nuts, Aluminium
plated and PTFE coated.
Gaskets
Material
Size
All sizes
Description
Ring joint oval rings, 316L,
Maximum Hardness 165 HB.
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Class 90DS
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 136 of 151
Branch Connections See Appendix 1 Sheet 12 B.
Mat: 1.4462
Closures (Caps &
Blind Flanges)
Mat: 1.4462
½" – 16" Weld Caps or Blind Flanges.
VALVES
(See Notes)
Ball Valves ½" - 1½" ASME 1500, Flanged Ends, RTJ,
Reduced Bore, Long Pattern, Lever
Operated.
Material: 1.4462
Tag nr: V-769
½" - 1½" ASME 1500, Flanged Ends, RTJ, Full
Bore, Long Pattern, Lever Operated.
Material: 1.4462
Tag nr: V-779
2" - 4"
2" - 3"
6" - 16"
ASME 900 (2”, ASME 1500), Flanged
Ends, RTJ, Reduced Bore, Long
Pattern, Lever Operated.
Material: 1.4462
Tag nr: V-770
ASME 900 (2”, ASME 1500), Flanged
Ends, RTJ, Full Bore, Long Pattern,
Lever Operated.
Mat: 1.4462
Tag nr: V-778
ASME 900, Flanged Ends, RTJ,
Reduced Bore, Gear Operated.
Material: 1.4462
Tag nr: V-771
4" - 16" ASME 900, Flanged Ends, RTJ, Full
Bore, Gear Operated.
Material: 1.4462
Tag nr: V-785
Globe Valves ½" - 2" ASME 1500, Flanged Ends, RTJ, OS&Y,
Bolted Bonnet,
Plug Type Disc.
Material: 1.4462
Tag nr: V-421
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Class 90DS
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 137 of 151
3" - 8" ASME 900, Flanged Ends, RTJ, OS&Y,
Bolted Bonnet, Plug Type Disc, Gear
Operated.
Material: 1.4462
Tag nr: V-422
Check Valves
Horizontal or
Vertical Up Flow
½" - 1½"
ASME 1500, Flanged Ends, RTJ, Ball or
Piston check. Max. ΔP= 0.5 barg
Material: 1.4462
Tag nr: V-563
Check Valves
Horizontal or
Vertical Up Flow
2"
ASME 1500, Dual Plate Design, Wafer
Type, RTJ Facing.
Material: 1.4462
Tag nr: V-564
Horizontal or
Vertical Up Flow
3" - 16" ASME 900, Dual Plate Design, Wafer
Type, RTJ Facing.
Material: 1.4462
Tag nr: V-567
Needle Valves 1/2" ASME 1500, Gauge valve, Flanged Ends,
RTJ, OS&Y Rising Stem.
Material: 1.4462
Tag nr: V-622
(Note 8) ½" - 1" - 2" ASME 900, monoflange (needle valve)
Ends RTJ/NPT ½"
Material: 1.4462
Tag nr: V-655
Note 1. Full bore valves to be used for relief service, risers or critical separator service only.
Note 2. Valves 2" and larger to have trunnion mounted ball.
Note 3. Valves for ESD or pigging service to be double block and bleed and equipped
with secondary sealing.
Note 4. For power operated valves reduced bore use V-769-P (Size 1" thru 1½"),
V-770-P (Size 2" thru 4") and V-771-P (Size 6" and above).
Note 5. For power operated valves full bore use V-778-P (Size 1" thru 3") and
V-785-P (Size 4" and above).
Note 6. Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 53OPA770030.
Note 7 Power operated valve with hydraulic driven actuator shall be indicated with H as
fifth code digit e.g. 53OPH770030.
Note 8. Monoflange valve to be used as block valve between piping and instruments.
Note 9. For production/test manifold use only piston type valve V-793-PA or V-793-PH.
Note 10. Valves with internals from super duplex (werkstoff nr 1.4501) shall be denoted
with an S behind the valve number e.g. V-770-S.
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Class 90DSH
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 138 of 151
12.6 PIPING SPECIFICATION CLASS 90DSH
ASME 900 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Service in Line Number
Hydrocarbons, corrosive 1
Produced Water, corrosive 9
Materials according to Sections 7.0, 9.0 and 10.0
Pressure/Temperature Limits (ASME 900, Duplex Stainless Steel according Material Group 2.8)
Temperature °C -20/38 50 100 150 180
Pressure Barg 155.2 153.8 147.5 137.4 131.8
PIPE
Material
Size
Description
1.4462 ½" - ¾" Schedule 80S, Seamless
1" - 6" Schedule 40S, Seamless
8" - 16" Schedule 60, Seamless
FITTINGS
Elbows, Tees &
Reducers
Material
1.4462
Size
½" – 16"
Description
Butt Weld, WE tapered to match pipe
schedule. See specification 505 for
dimensional requirements.
Flanges
Material
1.4462
Size
2" and smaller
Description
ASME 1500, RTJ, WN, bore to match
ID of pipe.
3" – 16" ASME 900, RTJ, WN, bore to match ID
of pipe.
Stud Bolts & Nuts
Material
ASTM A320 Grade L7/
A194 Grade 7
Size
All sizes
Description
Stud Bolts and Nuts, Aluminium
plated and PTFE coated.
Gaskets
Material
Size
All sizes
Description
Ring joint oval rings, 316L,
Maximum Hardness 165 HB.
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Class 90DSH
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 139 of 151
Branch Connections See Appendix 1 Sheet 19 B.
Mat: 1.4462
Closures (Caps &
Blind Flanges)
Mat: 1.4462
½" – 16"
Weld Caps or Blind Flanges.
VALVES (See Notes)
Ball Valves ½" - 1½" ASME 1500, Flanged Ends, RTJ,
Reduced Bore, Lever Operated.
Material: 1.4462
Tag nr: V-769-H
½" - 1½" ASME 1500, Flanged Ends, RTJ, Full
Bore, Lever Operated.
Material: 1.4462
Tag nr: V-779-H
2" - 4"
2" - 3"
6" - 16"
ASME 900 (2”, ASME 1500), Flanged
Ends, RTJ, Reduced Bore, Lever
Operated.
Material: 1.4462
Tag nr: V-770-H
ASME 900 (2”, ASME 1500), Flanged
Ends, RTJ, Full Bore, Lever Operated.
Material: 1.4462
Tag nr: V-778-H
ASME 900, Flanged Ends, RTJ,
Reduced Bore, Gear Operated.
Material: 1.4462
Tag nr: V-771-H
4" - 16" ASME 900, Flanged Ends, RTJ, Full
Bore, Gear Operated.
Material: 1.4462
Tag nr: V-785-H
Globe Valves ½" - 2" ASME 1500, Flanged Ends, RTJ, OS&Y,
Bolted Bonnet,
Plug Type Disc.
Material: 1.4462
Tag nr: V-421-H
3" - 8" ASME 900, Flanged Ends, RTJ, OS&Y,
Bolted Bonnet, Plug Type Disc, Gear
Operated.
Material: 1.4462
Tag nr: V-422-H
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Class 90DSH
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 140 of 151
Check Valves
Horizontal or
Vertical Up Flow
½" - 1½"
ASME 1500, Flanged Ends, RTJ, Ball or
Piston check, Max. ΔP= 0.5 barg
Material: 1.4462
Tag nr: V-563-H
Check Valves
Horizontal or
Vertical Up Flow
2"
ASME 1500, Dual Plate Design, Wafer
Type, RTJ Facing.
Material: 1.4462
Tag nr: V-564-H
Horizontal or
Vertical Up Flow
3" - 16" ASME 900, Dual Plate Design, Wafer
Type, RTJ Facing.
Material: 1.4462
Tag nr: V-567-H
Needle Valves 1/2" ASME 1500, Gauge valve, Flanged Ends,
RTJ, OS&Y Rising Stem.
Material: 1.4462
Tag nr: V-622-H
(Note 8) ½" - 1" - 2" ASME 900, monoflange (needle valve)
Ends RTJ/NPT ½"
Material: 1.4462
Tag nr: V-655-H
Note 1. Full bore valves to be used for relief service, risers or critical separator service only.
Note 2. Valves 2" and larger to have trunnion mounted ball.
Note 3. Valves for ESD or pigging service to be double block and bleed and equipped
with secondary sealing.
Note 4. For power operated valves reduced bore use V-769-HP (Size 1" thru 1½"),
V-770-HP (Size 2" thru 4") and V-771-HP (Size 6" and above).
Note 5. For power operated valves full bore use V-778-HP (Size 1" thru 3") and
V-785-HP (Size 4" and above).
Note 6. Power operated valve with air driven actuator shall be indicated with A as fifth
code digit e.g. 53HPA778030.
Note 7. Power operated valve with hydraulic driven actuator shall be indicated with H as
fifth code digit e.g. 53HPH778030.
Note 8. Monoflange valve to be used as block valve between piping and instruments.
Note 9. Valves with internals from super duplex (werkstoff nr 1.4501) shall be denoted
with an S behind the valve number e.g. V-770-S.
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Class 150DS
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 141 of 151
12. 7 PIPING SPECIFICATION CLASS 150DS
ASME 1500 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Service in Line Number
Hydrocarbons, corrosive 1
Produced Water, corrosive 9
Materials according to Sections 7.0, 9.0 and 10.0
Pressure/Temperature Limits (ASME 1500, Duplex Stainless Steel according Material Group 2.8
with pressure limit as indicated)
Temperature °C -20/38 50 100 150 200
Pressure Barg 240.0 240.0 240.0 229.0 213.0
PIPE
Material
Size
Description
1.4462 ½" – ¾" Schedule 80S, Seamless
1" – 6" Schedule 80S, Seamless
8" – 14" Schedule 100, Seamless
FITTINGS
Elbows, Tees &
Reducers
Material
1.4462
Size
½" – 14"
Description
Butt Weld, WE tapered to match pipe
schedule or wallthickn. See
specification 505 for dimensional
requirements.
Flanges
Material
1.4462
Size
½" – 14"
Description
ASME 1500, RTJ, WN, bore to match
ID of pipe.
Stud Bolts & Nuts
Material
ASTM A320 Grade L7/
A194 Grade 7
Size
All sizes
Description
Stud Bolts and Nuts, Aluminium
plated and PTFE coated.
Gaskets
Material
Size
Description
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Class 150DS
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 142 of 151
All sizes Ring joint oval rings, 316L,
Maximum Hardness 165 HB.
Branch Connections See Appendix 1 Sheet 18 B.
Material: 1.4462
Closures (Caps &
Blind Flanges)
Mat: 1.4462
½" – 14" Weld Caps or Blind Flanges.
VALVES (See Notes)
Ball Valves ½" - 1½" ASME 1500, Flanged Ends, RTJ,
Reduced Bore, Lever Operated.
Material: 1.4462
Tag nr: V-970
2" - 4" ASME 1500, Flanged Ends, RTJ,
Reduced Bore, Lever Operated.
Material: 1.4462
Tag nr: V-971
6" - 14"
ASME 1500, Flanged Ends, RTJ,
Reduced Bore, Gear Operated.
Material: 1.4462
Tag nr: V-974
½" - 1½" ASME 1500, Flanged Ends, RTJ, Full
Bore, Lever Operated.
Material: 1.4462
Tag nr: V-779
2" - 3" ASME 1500, Flanged Ends, RTJ, Full
Bore, Lever Operated.
Material: 1.4462
Tag nr: V-972
4" - 14" ASME 1500, Flanged Ends, RTJ, Full
Bore, Gear Operated.
Material: 1.4462
Tag nr: V-975
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Class 150DS
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 143 of 151
Globe Valves ½" - 2" ASME 1500, Flanged Ends, RTJ, OS&Y,
Bolted Bonnet, Plug Type Disc.
Material: 1.4462
Tag nr: V-421
3" - 8" ASME 1500, Flanged Ends, RTJ, OS&Y,
Bolted Bonnet, Plug Type Disc, Gear
Operated.
Material: 1.4462
Tag nr: V-410
Check Valves
Horizontal or
Vertical Up Flow
½" - 1½" ASME 1500, Flanged Ends, RTJ, Ball or
Piston Check., Max. delta ΔP= 0.5 barg
Material: 1.4462
Tag nr: V-563
Horizontal or
Vertical Up Flow
2" ASME 1500, Dual Plate Design, Wafer
Type, RTJ Facing.
Material: 1.4462
Tag nr: V-564
Check Valves
Horizontal or
Vertical Up Flow
3" – 14"
ASME 1500, Dual Plate Design, Wafer
Type, RTJ Facing.
Material: 1.4462
Tag nr: V-536
Needle Valves ½" ASME 1500, Gauge valve, Flanged Ends,
RTJ, OS&Y Rising Stem.
Material: 1.4462
Tag nr: V-622
(Note 8) ½" - 1" - 2" ASME 1500, monoflange (needle
valve) Ends RTJ/NPT ½"
Material: 1.4462
Tag nr: V-655
Note 1. Full bore valves to be used for relief service, risers or critical separator service only.
Note 2. Valves 2" and larger to have trunnion mounted ball.
Note 3. Valves for ESD or pigging service to be double block and bleed and equipped with
secondary sealing.
Note 4. For power operated valves reduced bore use V-970-P (Size 1" thru 1½"), V-971-P (Size
2" and above).
Note 5. For power operated valves full bore use V-779-P (Size 1" thru 1½") and V-972-P (Size
2" and above).
Note 6. Power operated valve with air driven actuator shall be indicated with A as fifth code
digit e.g. 53OPA971030.
Note 7. Power operated valve with hydraulic driven actuator shall be indicated with H as fifth
code digit e.g. 53OPH971030.
Note 8. Monoflange valve to be used as block valve between piping and instruments
Note 9. For production/test manifold use only piston type valve V-802-PA or V-802-PH.
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Class 250DS
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 144 of 151
12. 8 PIPING SPECIFICATION CLASS 250DS
ASME 2500 Corrosion Allowance : 0 mm Design Code : EN 13480
Service Symbol
Service in Line Number
Hydrocarbons, corrosive 1
Produced Water, corrosive 9
Materials according to Sections 7.0, 9.0 and 10.0
Pressure/Temperature Limits (ASME 2500, Duplex Stainless Steel according Material Group 2.8)
Temperature °C -20/38 50 100 150
Pressure Barg 431.0 427.3 409.8 381.5
PIPE
Material
1.4462
Size
½" - 1½"
Description
Schedule 80S, Seamless.
2" - 8" Schedule 160, Seamless.
FITTINGS
Elbows, Tees and
Reducers
Material
1.4462
Size
½" – 8"
Description
Steel Butt Weld, WE tapered to match
pipe schedule. See specification 505
for dimensional requirements.
Flanges
Material
1.4462
Size
½" – 8"
Description
ASME 2500, RTJ WN, bore to match ID
of pipe.
Stud Bolts & Nuts
Material
ASTM A320 Grade L7/
A194 Grade 7
Size
All sizes
Description
Stud Bolts and Nuts, Aluminium
plated and PTFE coated.
Gaskets
Material
Size
All sizes
Description
Ring Joint Oval Rings, 316L,
Maximum hardness 165 HB.
Branch Connections See Appendix 1 Sheet 13 B.
Mat: 1.4462
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Class 250DS
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 145 of 151
Closures (Caps &
Blind Flanges)
Mat: 1.4462
½" – 8" Weld Caps or Blind Flanges.
VALVES (See Notes)
Ball Valves
(Note 8)
Size
Description
½" - 2" ASME 2500, Flanged Ends, RTJ,
Reduced Bore, Lever Operated
(2" Gear Operated).
Material: 1.4462
Tag nr: V-798
½" - 2" ASME 2500, Flanged Ends, RTJ, Full
Bore, Lever Operated
(2" Gear Operated).
Tag nr: V-796
3" - 8"
ASME 2500, Flanged Ends, RTJ, Full
Bore, Gear Operated.
Tag nr: V-797
Check Valves
Horizontal or
Vertical Up Flow
Horizontal or
Vertical Up Flow
½" - 1½"
2" – 8"
ASME 2500, Flanged Ends, RTJ, Piston
check, Max. ΔP= 0.5 barg.
Material: 1.4462
Tag nr: V-568
ASME 2500, Duo Disc Design, Wafer
Type, RTJ Facing.
Material: 1.4462
Tag nr: V-559
Globe Valves
Needle Valves
(Note 7)
1”-2"
½"
½" - 1"
ASME 2500, Flanged Ends, RTJ,
OS&Y, Bolted Bonnet.
Material: 1.4462
Tag nr: V-458
ASME 2500, Flanged Ends, RTJ,
Reduced bore, OS&Y.
Mat: 1.4462
Tag nr: V-623
ASME 2500, monoflange (needle valve)
Ends RTJ/ NPT ½"
Tag nr: V-625
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Class 250DS
Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 146 of 151
Note 1. Full bore valves to be used for relief service, risers or critical separator service.
Note 2. ESD valves for ESD or pigging service to be double block and bleed and equipped
with secondary sealing.
Note 3. For power operated valves reduced bore use V-798-P (Size 1" and above).
Note 4. For power operated valves full bore use V-797-P (Size 1" and above).
Note 5. Power operated valve with air driven actuator shall be indicated with A as fifth code
digit e.g. 530PA797080 and hydraulic as e.g. 530PH797080.
Note 6. Ball valves 1½" and larger to have trunnion mounted ball.
Note 7. Monoflange valve to be used as block valve piping-instruments.
Note 8. For production/test header manifold use only piston type valve (Mokveld) V-792-PA
power operated air driven actuator or V-792-PH power operated hydraulic driven
actuator.
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APPENDIX I: SUMMARY SHEETS
Attached sheets summarise the pipe, fittings and valves per pipe class as described in this specification. The tables are not intended to be complete; if a required size is not mentioned, refer to the Class description. The tables show article numbers for each item. The number is a combination of 5 digits in the row “material code“ and 6 size specific digits in the item columns. This article number is an identification number for logistical use. Please note that some tables have more than one “material code“ row.
CONTENTS OF SUMMARY SHEETS:
Class 15 sheet 1A and sheet 1B.
Class 15H sheet 20A and sheet 20B
Class 15C sheet 2A and sheet 2B.
Class 15U sheet 3A and sheet 3B.
Class 15UK sheet 4A and sheet 4B.
Class 15UP sheet 5A
Class 15S sheet 14A and sheet 14B.
Class 15SH sheet 21A and sheet 21B
Class 30 sheet 6A and sheet 6B.
Class 30H sheet 6C and sheet 6D.
Class 30U sheet 16A and sheet 16B.
Class 30W sheet 6E and sheet 6F.
Class 60 sheet 7A and sheet 7B.
Class 90 sheet 8A and sheet 8B.
Class 90H sheet 8C and sheet 8D.
Class 150 sheet 17A and sheet 17B
Class 250 sheet 9A and sheet 9B.
Class 15DS sheet 10A and sheet 10B.
Class 15DSH sheet 22A and sheet 22B
Class 30DS sheet 11A and sheet 11B.
Class 60DS sheet 23A and sheet 23B
Class 90DS sheet 12A and sheet 12B.
Class 250DS sheet 13A and sheet 13B.
Class 90DSH sheet 19A and sheet 19B.
Class 150DS sheet 18A and sheet 18B
Class 500S sheet 15A
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Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 148 of 151
APPENDIX II: PARTICULAR MATERIAL APPRAISALS (PMA’s)
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Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 149 of 151
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Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 150 of 151
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Neptune Energy Netherlands B.V.
Specification 503 rev. 18 Page 151 of 151
APPENDIX III: GASKET SELECTION TABLE
PIPING
CLASS
NON
ASBESTOS
SPIRAL
WOUND
OVAL RING
SOFT Iron
OVAL
RING
316L
CS /SS
15 X NON ASB
15C X NON ASB
15U X NON ASB
15UK X NON ASB
15UP NEOPRENE NEOPRENE
15H X SPWND
30 X SPWND
30W X SPWND
30H X SPWND
30U X SPWND
60 X SPWND
90 X O.R. 316L
90H X O.R. 316L
150 X O.R. 316L
250 X O.R. 316L
15S X NON ASB
15SH X SPWND
15DS X NON ASB
30DS X SPWND
15DSH X SPWND
60DS X SPWND
90DS X O.R. 316L
90DSH X O.R. 316L
150DS X O.R. 316L
250DS X O.R. 316L
500S X O.R. 316L
Note: For CS/SS connections with insulation sets see P&ID’s.