Pressure and Temperature Control - EMES and Temperature Control ID Charts All models comply with the...
Transcript of Pressure and Temperature Control - EMES and Temperature Control ID Charts All models comply with the...
Pressure and Temperature Controls
Armstrong pressure reducing valves (PRVs) and temperatureregulators help you manage steam, air and liquid systemssafely and efficiently. They assure also uninterruptedproductivity - by maintaining constant pressure or temperaturefor process control. In short, Armstrong regulators make usingresources safe and productive... as well as environmentallysound.
For decades, Armstrong has devoted itself to learning - andsharing - all it can about energy conservation as it relates tosteam equipment. As part of our product/service network, PRVsand temperature regulators represent expanded options for areliable Armstrong solution.
Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • BelgiumTel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
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Pressure and Temperature Control ID Charts
All models comply with the Pressure Equipment Directive PED 97/23/EC. For details, see specific product page or Armstrong PED Certificate.
Table PTC-219-1. Armstrong Pressure and Temperature Control Equipment
Illustration Type FluidConnection
Type
MaximumAllowedPressure
(barg)
TMA(°C)
BodyMaterial Model
MaximumOperatingPressure
(barg)
Connection Size Page
GD-30DirectActing
Steam, Air, Non-Corrosive
Gases
BSPT
17 210 Cast BronzeASTM B584 GD-30 17
1/2"3/4"1",
1 1/2"2"
PTC-222FlangedPN25/40
GD-30SDirectActing
Steam, Air,Non-
CorrosiveGases
BSPT20 220
StainlessSteel
AISI 304GD-30S 20
1/2"3/4"1"
PTC-222FlangedPN25/40
GDK-2000DirectActing,Diaphragm Operated
Steam
BSPT
20 232 Ductile IronASTM A536 GDK-2000 20
1/2", 3/4", 1",1 1/4", 1 1/2",
2"PTC-224
FlangedPN25/40
15, 20, 25, 32,40, 50, 65, 80,
100GP-2000KExternalPilot,DiaphragmOperated
Steam
BSPT
20 232 Ductile IronASTM A536
GP-2000K-1GP-2000K-3GP-2000K-6
20
1/2", 3/4 ", 1 ",1 1/4", 1 1/2",
2"PTC-225
FlangedPN25/40
15, 20, 25, 32,40, 50, 65, 80,
100,150GP-2000ExternalPilot,DiaphragmOperated
Steam
BSPT
20 232 Ductile IronASTM A536 GP-2000 20
1/2 ", 3/4", 1 ",1 1/4", 1 1/2",
2"PTC-229
FlangedPN25/40
15, 20, 25, 32,40, 50, 65, 80,
100,150GP-2000RBackPressure,External Pilot Steam
BSPT
14 232 Ductile IronASTM A536 GP-2000R 14
1/2", 3/4", 1 ",1 1/4", 1 1/2",
2"PTC-230
FlangedPN25/40
15, 20, 25, 32,40, 50, 65, 80,
100,150OB-30/31DirectActingTemperatureRegulator
Steam, Waterand Non-CorrosiveLiquids
BSPT
10
185 BronzeASTM B584
OB-30Heating
10(steam) 1/2"
3/4"1"
PTC-24017 OB-31
Cooling17
(liquid)
OB-2000PilotedDiaphragmOperatedTemperatureRegulator
Steam
BSPT
20 232
Pilot: BronzeASTM B584
Body: DuctileIron ASTM
A536
OB-2000 20
1/2", 3/4", 1",1 1/4", 1 1/2",
2"PTC-242
FlangedPN25/40
15, 20, 25, 32,40, 50, 65, 80,
100OB-2000PTPilotedPressure /TemperatureRegulator
Steam
BSPT
20 232
Temp. Pilot:Bronze
ASTM 8584Body: DuctileIron ASTM
A536
OB-2000PT 20
1/2", 3/4", 1",1 1/4", 1 1/2",
2"PTC-244
FlangedPN25/40
15, 20, 25, 32,40, 50, 65, 80,
100
Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • BelgiumTel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
www.armstrong.be • [email protected] PTC-219
Pressure and Temperature
Controls
Pressure Reducing Valves
PRV TypesSteam, liquids and gases usually flow at high pressures to thepoints of final use. At these points, a pressure reducing valvelowers the pressure for safety and efficiency and to match therequirements of the application. There are two types ofpressure reducing valves offered by Armstrong:
Direct Acting. The simplest of PRVs, the direct acting typeoperates with convoluted bellows. Since it is self-contained, itdoes not need an external sensing line downstream to operate.It is the smallest and most economical of the two types and isdesigned for low to moderate flows. Accuracy of direct actingPRVs is typically ±10% of the downstream set point.
Externally Piloted. This type of PRV incorporates two valves -a pilot and a main valve - in one unit. The pilot valve has adesign similar to the direct acting valve. The discharge from thepilot valve acts on a set of double diaphragms, which controlsthrough a piston the opening of the main valve. This highdiaphragm area can open a larger main valve, allowing agreater capacity per line size than the direct acting regulators.In addition, the diaphragms are more sensitive to pressurechanges, and that means accuracy of ±1%. This greateraccuracy is also due to the location of the sensing line outsideof the valve, where there is less turbulence. This valve alsooffers the flexibility to use different types of pilot valves:pressure, temperature, air loaded, solenoid or combinations.
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Direct Acting
For Steam, Air and Non-Corrosive Gas ServiceThe simplest of all pressure reducing valves, the direct actingtype operates with convoluted bellows. Since it is self-contained, it does not need an external sensing line
downstream to operate. It is the smallest and most economicalof the two types and is designed for low to moderate flows.Accuracy of direct acting PRVs is typically ±10%.
Convoluted phosphor bronze orstainless steel bellows allowssmaller body size thanconventional direct-actingdiaphragm PRVs.
Bronze or stainless steel body forcorrosion resistance.
Stainless steel stem and bronzeor stainless steel body minimizethe sticking common withconventional valves.
Hardened stainless steel valveand seat with spring return toassure tight shutoff.
Integral mesh strainer eliminatesfouling due to dirt.
Plastic cap does not absorb heatso it will not burn an operator’shands. Permits changing of set
pressure without tools. Simply liftcap and turn to desired setting.
Interchangeable range spring iseasily changed to different
pressure by removing four (4)cap screws.
Downstream pressure sensedoutside the bellows vs. inside,
which assures bellows integrityand longer bellows life.
Integral sensing port to eliminatepiping of external sensing line.
Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • BelgiumTel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
www.armstrong.be • [email protected] PTC-221
Pressure and Temperature
Controls
GD-30/30S
For Steam, Air and Non-Corrosive GasesThe GD-30 is a compact, high performance direct acting valve.Economical to buy and use, it’s ideal for those low to moderateflow applications where accuracy of ±10% is acceptable. TheGD-30 is well suited for laundry and dry cleaning equipment,
hospital equipment, tire molds, humidifiers, small heaters andapplications in food processing. It provides tight shutoff fordead-end service on steam.
L
H
H1
L1
Note: GD-30 capacities cannot be determined with a formula - consult capacity tables. Reference note inside of table PTC-236-1.* GD-30S available in 1/2”, 3/4” and 1” only.All sizes comply with the article 3.3 of the PED (97/23/EC).
Table PTC-222-1. GD-30 Specifications
Application Inlet Pressure(barg)
ReducedPressure
(barg)
Springcolor
MinimumDifferential
(barg)
MaximumTemperature
(°C)
Materials
Body Valve/Seat Bellows
SteamAir
Non-corrosive gases1 - 17
0,2 - 1,0 Yellow0,5 210 Cast Bronze
ASTM B584Stainless SteelAISI 440/304 Phosphor Bronze*0,5 - 4,0 Blue
3,5 - 10,0 Green
Table PTC-222-2. GD-30/30S Dimensions and Weights
Connection Size 1/2" - 15 3/4" - 20 1" - 25 1 1/2" - 40 2" - 50
L 80 85 95 140 150L1 150 150 160 272 288H1 47 47 47 77 77
H 190 190 190 307 307
Weight BSPT (kg) 1,9 1,9 2,0 8,1 8,5
Weight Flanged (kg) 3,5 4,0 4,5 12,8 15,1
Cv 1,3 1,5 2,5 5,6 8,5
Table PTC-222-3. GD-30S Specifications
Application Inlet Pressure(barg)
ReducedPressure
(barg)
Springcolor
MinimumDifferential
(barg)
MaximumTemperature
(°C)
Materials
Body Valve/Seat Bellows
Steam 1 - 21
0,2 - 1,0 Yellow
0,5 220Stainless Steel
AISI 304(316 Optional)
Stainless SteelAISI 440/304
Stainless SteelAISI 316L0,5 - 4,0 Blue
3,6 - 10,0 Green
* Stainless steel optional.
All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.
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GD-30/30S
Note : For air capacities in Nm³/h, multiply steam capacities by 1,2.Maximum pressure reduction ratio 10:1.Shade indicates capacities available with bronze GD-30 only.
Table PTC-223-1. GD-30/30S Capacities - Steam
Inlet Pressure Outlet PressureSteam Ioad (kg/h)Connection Size
bar 1/2" DN15 3/4" DN20 1" DN25 1 1/2" DN40 2" DN501 0,5 22 25 42 90 135
1,50,9 24 28 48 98 1500,5 19 25 35 82 120
21,6 28 32 51 110 1851,4 24 27 46 95 1400,2 15 18 27 63 98
32,2 45 55 85 185 2801,4 36 44 72 150 2350,3 18 25 35 72 120
3,52,8 59 65 110 245 3801,4 45 52 85 185 2850,3 22 28 40 88 135
4
3,3 62 70 120 265 4082,8 68 75 131 280 4401,2 41 47 77 170 2650,4 25 33 45 100 150
5,5
4,4 80 93 155 335 5303,7 85 102 160 355 5451,6 55 62 100 222 3400,5 27 35 49 105 165
7
5,5 92 110 180 392 6154,5 102 119 198 435 6652,8 90 105 170 380 5800,7 31 36 60 135 215
8,5
6,6 105 125 205 450 6904,8 125 141 235 530 8253,1 109 121 204 445 6850,8 50 55 90 210 320
10,5
8,3 130 151 250 550 8455,9 165 191 320 695 1 0753,8 135 160 270 580 9101,0 60 75 115 255 385
12,5
9,7 185 220 360 780 1 2158,0 195 230 390 830 1 2854,8 175 195 335 735 1 1351,2 75 85 140 310 470
14
9,7 209 235 395 900 1 3908,0 215 245 410 910 1 4005,9 195 225 375 825 1 2751,6 95 110 175 385 590
15,5
9,7 220 260 430 935 1 4508,0 225 265 436 940 1 4555,9 210 245 410 900 1 3901,6 115 135 225 490 760
17
9,7 238 275 460 1 010 1 5608,3 250 265 471 1 020 1 5754,8 210 240 405 880 1 3601,7 125 145 240 520 815
19
9,7 240 278 4648,3 240 278 4644,8 213 246 4091,9 134 156 255
21
9,7 240 278 4646,9 240 278 4644,8 217 250 4202,7 140 163 270
GD-3
0S O
nly
Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • BelgiumTel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
www.armstrong.be • [email protected] PTC-223
Pressure and Temperature
Controls
GDK-2000
Air Loaded Valves for SteamThe GDK-2000 is an ideal choice when set point changes arefrequent, access to the valve is difficult and steam quality ispoor. The GDK-2000 comes with either BSPT or flangedconnections for quick, easy installation. It also comes with a
durable ductile iron body and features double stainless steeldiaphragms and hardened stainless working parts, renewablein-line. High Cv and 10:1 turndown ratio. Single seated fordead-end service.
* All sizes comply with the article 3.3 of the PED (97/23/EC), but PMA for DN65 is 15 bar, for DN80: 12,5 bar and for DN100: 10 bar. For capacities see page PTC-231.External Sensing Line is not included as standard, but could be delivered on request. Internal Sensing Kit is also available.
A
H1
H
GDK-2000
Table PTC-224-1. GDK-2000 Specifications
ApplicationInlet
Pressure (barg)
ReducedPressure
(barg)
MaximumTemperature
(°C)
MinimumDifferential
(barg)
Materials
Body MainValve / Seat Diaphragm Color
Steam 1 - 20*
0,5 - 18(Additional Air
Pressurerequired)
232 0,5 Ductile IronASTM A536
Stainless SteelAISI 420
Stainless SteelAISI 301 Dark Gray
Table PTC-224-2. GDK-2000 Dimensions and Weights
SizeFace-to-Face
H1 H AWeight
CvBSPT PN 25/40 BSPT PN 25/40mm mm mm mm mm kg kg
15 - 1/2" 150 150 74 244 200 13 14 5,020 - 3/4” 150 150 74 244 200 13 15 7,225 - 1" 160 160 76 251 226 17 19 10,9
32 - 1 1/4" 180 180 90 282 226 20 23 14,340 - 1 1/2" 180 200 90 282 226 20 23 18,8
50 - 2" 230 230 103 319 276 31 35 32,065 - 2 1/2” – 290 122 373 352 – 64 60,0
80 - 3” – 310 135 399 352 – 71 78,0100 - 4” – 350 167 488 401 – 112 120,0
All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.
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www.armstrong.be • [email protected]
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GP-2000K-1, GP-2000K-3, GP-2000K-6
Air Loaded Valves for SteamA high performance externally air piloted pressure reducingvalve, the GP-2000K-1, GP-2000K-3, GP-2000K-6 is an idealchoice when set point changes are frequent and access to thePRV is difficult. The valve comes totally assembled andrequires no field installation except downstream sensing lineand air line connection.
High Cv, 20:1 turndown ratio and accurate control ±1% ofpressure set point from 5% to 100% of flow. A rugged ductileiron body, hardened stainless steel working parts, doublestainless steel diaphragms and in-line repairability add up toreliability on the job. Single seated for dead-end service.
Shade indicates products that are CE Marked according to the PED (97/23/EC). All the other sizes comply with the Article 3.3 of the same directive.* The above given data are for GP-2000K-1. For GP-2000K-3 and GP-2000K-6 add 32 mm to “H” dimension. ** The above given data are for GP-2000K-1. For GP-2000K-3 and GP-2000K-6, “A2” dimension = 172 mm.Note: DN150 valve is available in integral version only and is not CE Marked.For capacities see page PTC-231.External Sensing Line is not included as standard, but could be delivered on request. Internal Sensing Kit is also available.
H1
H
A1
L
A2
F
A1
H1
H
A1
F
H1
H
L
A2
A1
GP-2000K-11:1 Air to Steam Ratio
GP-2000K-21:2 Air to Steam Ratio
Table PTC-225-1. GP-2000K-1, GP-2000K-3, GP-2000K-6 Specifications
ApplicationInlet
Pressure(barg)
ReducedPressure
(barg)
MaximumTemperature
(°C)
MinimumDifferential
(barg)
Materials
Body Main Valve / Seat
PilotValve / Seat Diaphragm Color
Steam 1 - 20K-1: 0,5 - 9K-3: 2 - 14K-6: 3 - 14
232 0,5 Ductile IronASTM A536
Stainless SteelAISI 420
Stainless SteelAISI 301 Dark Gray
Table PTC-225-2. GP-2000K-1, GP-2000K-3, GP-2000K-6 Dimensions and Weights
SizeFace-to-Face
Cv A1 F HIntegral*
HRemote
H1 A2**Weight
BSPT PN 25/40 PN 25/40 BSPTmm mm mm mm mm mm mm mm mm kg kg
15 - 1/2” 150 150 5,0 200 175 335 300 170 82 18 1620 - 3/4” 150 150 7,2 200 175 335 300 170 82 18 1625 - 1” 160 160 10,9 226 179 341 305 175 82 22 20
32 - 1 1/4” 180 180 14,3 226 188 371 322 192 82 26 2340 - 1 1/2” 180 200 18,8 226 188 371 322 192 82 27 23
50 - 2” 230 230 32,0 276 195 435 337 216 82 38 3465 - 2 1/2” – 290 60,0 352 211 489 391 251 82 67 –
80 - 3” – 310 78,0 352 222 512 416 264 82 73 –100 - 4” – 350 120,0 401 239 595 505 321 82 115 –150 - 6” – 480 250,0 502 – 746 – 692 82 252 –
All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.
Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • BelgiumTel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
www.armstrong.be • [email protected] PTC-225
Pressure and Temperature
Controls
Air Loading Charts
How to Use the Air Loading Charts (GP-2000K-1, 3, 6)• Enter the graph at the outlet pressure from the value on
the vertical axis. • Move horizontally to the right until the air loading lines
are intersected. • Then read vertically below the point of intersection for
the air loading pressure required.
14,0
12,5
11,2
9,8
8,4
7,0
5,6
4,2
2,8
1,4
01,4 2,8 4,2 5,6 7,0 8,4 9,8
GP
-200
0K-6
GP
-200
0K-3
GP-200
0K-1
STEA
M O
UTLE
T PR
ESSU
RE (B
ARG)
AIR LOADING PRESSURE (BARG)
GP-2000K-1, 3, 6
2,45
2,10
1,75
1,40
1,00
0,70
0,35
01,4 2,8 4,2 5,6 8,47,0 9,8 11,2 14,012,6 15,4 16,8 18,2
4"
2"
3"
1"
1/2"
3/4"
21/2"11/4"
11/2"
ADDI
TION
AL A
IR P
RESS
URE
REQU
IRED
(BAR
G)
DIFFERENTIAL STEAM PRESSURE ∆∆P (BARG)
GDK-2000
Selection Example (GDK-2000)
Using 1 1/2" GDK-2000Steam Inlet Pressure P1 .............................................................14 barSteam Outlet Pressure P2 ....................................................5,25 barDifferential Pressure ∆P .........................................................8,75 bar
Read horizontally across the bottom of the chart to the8,75 bar ∆P line.
Read vertically up to the diagonal line that corresponds toa 1 1/2" GDK-2000.
Read horizontally to the left for additional air signalrequired.
Outlet Pressure P2 ....................................................................5,25 barAdditional Air ∆P Air .................................................................0,85 barTotal Air Pressure Required ...............................................6,10 bar
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Control Panels & Air Loaders
Armstrong Control Panels and Air Loaders are designed toprovide the necessary air loading signal to control any air-operated pressure reducing valve. While designed specificallyto control Armstrong pressure reducing valves such as the GP-2000K-1, 3, 6 and GDK-2000, these panels can also remotelycontrol other air-loaded valves. Panel is of rigid lightweightanodized aluminum for easy handling and installation. Controlpanel comes fully assembled with gauges suited to applications.Panel mate and panel mate filter are standard on panels andare also available separately.
102 mm
44 mm
1/4" NPT
Maximum Panel Thickness:
2,4 mm
Panel Mounting Hole
12 mm Diameter
“A” Panel “Y” Panel
Note: Panel material is anodized aluminum
* Note: Use an Armstrong AF-10, 5 micron air filter upstream of panel mateto prevent fouling.
Table PTC-227-1. Materials of Construction - Panel Mate - FilterName of Part Panel Mate Filter
Body ZincBottom Plug Brass –Pilot diaphragm Nitrile –Main diaphragm Nitrile –Pilot valve Stainless steel –Main valve Polycarbonate –Main valve seat Teflon –Bowl – ZincElement – Porous polypropylene
Elastomers Nitrile, neopreneand polyurethane Nitrile and neoprene
Table PTC-227-2. Specifications - Control PanelStandard Pressure Gauge Ranges (bar)
Gauge Panel A Panel YGauge A (bar) 0 - 7 –Gauge B (bar) 0 - 7Gauge C (bar) 0 - 14
Optional:
Gauge A Ranges (bar)
0 - 2 –0 - 7 –
0 - 20,5 –
Optional:
Gauge B and C Ranges (bar)
0 - 2 / 0 - 40 - 7 / 0 - 10,50 - 14 / 0 - 20,5
Maximum Inlet Air Pressure 14 barMaximum Outlet Air Pressure 10,5 bar
Table PTC-227-3. Specifications - Panel Mate - FilterPanel Mate*
(bar)Filter(bar)
Maximum Inlet Pressure 14 17Maximum Outlet Pressure 10 –Maximum Temperature 71°C 79°C
All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.
Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • BelgiumTel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
www.armstrong.be • [email protected] PTC-227
Pressure and Temperature
Controls
Externally Piloted
For Steam ServiceThis type of PRV incorporates two valves - a pilot and a mainvalve - in one unit. The pilot valve has a design similar to thedirect acting valve. The discharge from the pilot valve acts on aset of double diaphragms, which controls through a piston theopening of the main valve. This increased diaphragm area canopen a larger main valve, allowing a greater capacity per linesize than the internally piloted piston-operated valve.
In addition, the diaphragms are more sensitive to pressurechanges, which results in accuracy of ±1%. This greateraccuracy is due also to the positioning of the sensing linedownstream, where there is less turbulence. This valve alsooffers the flexibility to use different types of pilot valves:pressure, temperature, air loaded, solenoid or combination.
Interchangeable springs - regardlessof valve size - means more flexibilityin applications.
Enclosed spring chambereliminates dirt fouling.
Dual stainless steel diaphragmsprovide corrosion resistance.
All cast mating parts are maleand female to reduce the chanceof leaks at gasket surfaces andassure proper alignment.
Ductile iron body provides a widerrange of applications than cast ironand offers a less costly option tocast steel.
Available in both integral andremote mounted pilot.
Integral strainer protects the pilotvalve from failure due to dirt.
Easily removable copper tubingpermits troubleshooting while
valve is in-line.
Easy access to main valve forquick inspection or maintenance
by removing main valve springand screen and lifting valve from
stem. No special tools needed.
Design eliminates copper tubingfrom passing around the bottomdiaphragm housing, minimizing
chance of damage duringshipping or installation.
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www.armstrong.be • [email protected]
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GP-2000
For Steam ServiceThe GP-2000 is a high performance, externally piloted reducingvalve for large capacity requirements. Typical use is onintermittent service, including applications such as heatexchangers, steam coils, rotating dryers, process equipmentand heating systems. With a 20:1 rangeability and high Cv, the
GP-2000 is reliable and accurate (±1% of pressure set pointfrom 5% to 100% of flow) over a long, trouble-free service life.Hardened stainless steel working parts are renewable in-line.Single seated for dead-end service. Available with both BSPT(1/2" - 2") and flanged connections in DN15 - DN150 sizes.
* Note: When using this spring range, remove one (1) pilot diaphragm. Capacities are reduced by 1/2 of capacity chart when this spring is being used.
Shade indicates products that are CE Marked according to the PED (97/23/EC). All the other sizes comply with the Article 3.3 of the same directive.Note: DN150 valve is available in integral version only.For capacities see page PTC-231.External Sensing Line is not included as standard, but could be delivered on request. Internal Sensing Kit is also available.
Table PTC-229-1. GP-2000 Specifications
ApplicationInlet
Pressure(barg)
ReducedPressure
(barg)Spring Color
MaximumTemperature
(°C)
MinimumDifferential
(barg)
Materials
Body Main Valve/Seat
Pilot Valve/ Seat Diaphragm Color
Steam 1 - 200,1 - 0,2* Yellow
232 0,5 Ductile IronASTM A536
Stainless SteelAISI 420
StainlessSteel
AISI 301Dark Gray0,2 - 1,5 Yellow
1 - 14 Green
Table PTC-229-2. GP-2000 Dimensions and Weights
SizeFace-to-Face (L)
A F HIntegral
HRemote
H1 H2Weight
CvBSPT PN 25/40 BSPT PN 25/40mm mm mm mm mm mm mm mm kg kg
15 – 1/2" 150 150 200 176 398 362 170 244 14 16 5,020 – 3/4" 150 150 200 176 398 362 170 244 14 17 7,225 – 1" 160 160 226 180 404 367 175 254 19 23 10,9
32 – 1 1/4" 180 180 226 180 434 384 192 283 22 26 14,340 – 1 1/2" 180 200 226 180 434 384 192 283 22 26 18,8
50 – 2" 230 230 276 197 498 406 216 321 33 38 32,065 – 2 1/2" – 290 352 211 552 440 251 375 – 67 60,0
80 – 3" – 310 352 222 575 456 264 400 – 73 78,00 100 – 4” – 350 401 240 658 511 321 489 – 114 120,0150 – 6” – 480 502 – 806 – 414 673 – 252 250,0
All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.
Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • BelgiumTel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
www.armstrong.be • [email protected] PTC-229
Pressure and Temperature
Controls
GP-2000R
For Steam Back Pressure RegulationThe GP-2000R is a high performance externally pilotedthrottling back pressure valve for large capacity applications.Typical applications would include those systems utilizing flashsteam for low pressure heating or processes. The GP-2000R
valves will function to maintain a constant upstream pressure.This valve is not a safety valve and should not be used for thatpurpose.
Note: When using this spring range, remove one (1) pilot diaphragm. Capacities are reduced by 1/2 of capacity chart when this spring is being used.
Shade indicates products that are CE Marked according to the PED (97/23/EC). All the other sizes comply with the Article 3.3 of the same directive.Note: DN150 valve is available in integral version only, but is not CE Marked.For capacities see page PTC-231.External Sensing Line is not included as standard, but could be delivered on request. Internal Sensing Kit is also available.
Table PTC-230-1. GP-2000R Specifications
ApplicationInlet
Pressure(barg)
ReducedPressure
(barg)Spring Color
MaximumTemperature
(°C)
MinimumDifferential
(barg)
Materials
Body Main Valve/ Seat
Pilot Valve/ Seat Diaphragm Color
Steam 1 - 14*0,2 - 1,4 Yellow
232 0,2 Ductile IronASTM A536
Stainless SteelAISI 420
StainlessSteel
AISI 301Dark Gray1,4 - 11,0 Green
10,0 - 13,8 Brown
Table PTC-230-2. GP-2000R Dimensions and Weights
SizeFace-to-Face (L)
A F HIntegral
HRemote
H1 H2Weight
CvBSPT PN 25/40 BSPT PN 25/40mm mm mm mm mm mm mm mm kg kg
15 – 1/2" 150 150 200 176 398 362 170 244 14 16 5,020 – 3/4" 150 150 200 176 398 362 170 244 14 17 7,225 – 1" 160 160 226 180 404 367 175 254 19 23 10,9
32 – 1 1/4" 180 180 226 180 434 384 192 283 22 26 14,340 – 1 1/2" 180 200 226 180 434 384 192 283 22 26 18,8
50 – 2" 230 230 276 197 498 406 216 321 33 38 32,065 – 2 1/2" – 290 352 211 552 440 251 275 – 67 60,0
80 – 3" – 310 352 222 575 456 264 400 – 73 78,0100 – 4" – 350 401 240 658 511 321 489 – 114 120,0150 – 6" – 480 502 – 806 – 692 405 – 252 250,0
All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.
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GP-2000, GP-2000K-1, 3 & 6, GDK-2000, GP-2000R
Capacities for Steam
Note: Maximum pressure reduction 20:1, except for GDK-2000 (10:1).Minimum pressure reduction is 85% of inlet pressure.
Table PTC-231-1. GP-2000, GP2000K-1, GP2000K-3, GP2000K-6, GDK-2000, GP-2000R Capacities for Steam (kg/h)
InletPressure
(barg)
OutletPressure
(barg)
Connection Size (inches or mm)
1/2" 3/4" 1" 1 1/4" 1 1/2" 2" 2 1/2" 3" 4" 6"
15 20 25 32 40 50 65 80 100 150
1 0,5 89 128 194 255 335 571 1 071 1 392 2 142 4 465
1,51 101 145 220 289 380 648 1 215 1 580 2 430 5 063
0,2 146 210 318 418 549 936 1 755 2 282 3 510 7 313
21,5 111 161 243 320 420 716 1 343 1 745 2 686 5 597
0,2 - 0,5 175 252 382 501 659 1 123 2 105 2 737 4 210 8 769
32,5 130 188 284 373 491 836 1 568 2 038 3 136 6 536
0,2 - 1,0 234 336 510 669 879 1 497 2 808 3 651 5 616 11 691
43 202 291 441 579 761 1 296 2 430 3 159 4 860 10 125
0,2 - 1,5 292 421 637 836 1 099 1 872 3 510 4 563 7 020 14 614
54 223 322 487 640 841 1 432 2 685 3 493 5 370 11 1943 301 434 658 863 1 134 1 931 3 621 4 709 7 242 15 093
0,5 - 2 351 505 765 1 003 1 319 2 246 4 211 5 475 8 422 17 537
65 243 350 530 695 914 1 557 2 919 3 795 5 838 12 169
3,5 361 521 788 1 035 1 360 2 316 4 342 5 645 8 684 18 0960,5 - 2,5 409 589 892 1 171 1 539 2 620 4 913 6 386 9 826 20 460
75,5 314 453 686 900 1 183 2 014 3 776 4 909 7 552 15 7404 421 606 918 1 205 1 584 2 697 5 059 6 574 10 118 21 077
0,5 - 3,0 468 673 1 020 1 338 1 759 2 995 5 615 7 300 11 230 23 383
86,5 335 483 732 960 1 262 2 149 4 030 5 238 8 060 16 7905 452 652 987 1 295 1 702 2 897 5 434 7 062 10 868 22 640
0,5 - 3,5 526 758 1 147 1 505 1 979 3 369 6 319 8 214 12 638 26 306
108,5 374 538 815 1 070 1 407 2 395 4 493 5 840 8 986 18 7157 509 733 1 110 1 457 1 916 3 261 6 114 7 949 12 228 25 481
0,5 - 4,5 643 926 1 402 1 840 2 419 4 118 7 721 10 038 15 442 32 151
1210 467 673 1 019 1 337 1 758 2 992 5 612 7 295 11 224 23 3838 633 911 1 380 1 810 2 380 4 052 7 597 9 877 15 194 31 660
1,0 - 5,5 760 1 095 1 657 2 175 2 859 4 867 9 126 11 863 18 252 37 997
1411,5 559 805 1 220 1 600 2 104 3 581 6 714 8 731 13 428 27 984
9 754 1 086 1 645 2 158 2 837 4 829 9 056 11 771 18 112 37 7341,0 - 6,5 877 1 263 1 912 2 509 3 299 5 616 10 530 13 689 21 060 43 843
1512,5 579 834 1 263 1 657 2 179 3 709 6 956 9 043 13 912 28 98410 784 1 129 1 709 2 242 2 948 5 019 9 441 12 233 18 822 39 214
1,0 - 7,0 936 1 447 2 040 2 676 3 519 5 990 11 231 14 600 22 462 46 765
17,514 730 1 052 1 593 2 090 2 748 4 677 8 771 11 403 17 542 36 54512 888 1 279 1 936 2 540 3 340 5 686 10 661 13 860 21 322 44 423
1,0 - 8,0 1 082 1 558 2 359 3 095 4 069 6 926 12 986 16 882 25 972 54 113
2014 992 1 428 2 162 2 837 3 729 6 348 11 904 15 476 23 808 49 60212 1 113 1 603 2 426 3 183 4 185 7 124 13 358 17 365 26 716 55 662
1,0 - 9,5 1 228 1 769 2 678 3 513 4 619 7 862 14 741 19 164 29 482 61 380
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Pressure and Temperature
Controls
GP-2000 ON/OFF - For Steam Service
External Pilot Solenoid Operated ValvesThe GP-2000 On/Off option allows for remote shutoff ofpressure reducing valves. Automatic shutoff during powerfailures and shutoff based on set points of pressure,temperature or liquid levels of process fluids. This option isavailable as an accessory item or may be factory installed onany of the GP-2000 Series valves. The GP-2000 On/Off isdesigned for a maximum pressure of 10 barg and a maximumtemperature of 186°C, coil: 220V standard. Available withnormally open or normally closed solenoid valves.
Non-Electric Gradient Monitoring Option(Between Water and Steam Pressure) The GP-2000W1P provides a safe and dependable shutdown ofsteam when the water pressure falls or drops rapidly on aconstant pressure, steam-to-water exchanger. Unlike a solenoidoption that shuts the steam down when the water pressuredrops below a pre-set point, the GP-2000W1P always maintainsa constant steam pressure until water pressure drops to within0,2 barg above the steam pressure. Lower water pressure willcause the steam pressure to fall, thereby maintaining aminimum 0,2 barg difference. This will allow the exchanger toproduce hot water even when water pressure is low, andensures that steam pressure will stay functional as long aswater pressure is above 0,2 barg.
Noise Treatment OSHA has established limits on the length of time anyemployee may be exposed to various sound levels. A soundlevel of 85 Dba or less is the acceptable standard for noiselevels through a PRV in most applications. Certain facilities mayrequire much less. Please consult Armstrong PRV SizingSoftware or contact your local Representative for Dba levels foreach application.
For Dba levels above 85 you can offer a 2" thick insulationcover for thermal conductivity and noise attenuation, a mufflingorifice plate to reduce the velocity through the PRV, or acombination of both.
A muffling orifice plate consists of a 1/4" thick stainless steelplate installed between mating ANSI flanges. The orifice plate isinstalled in the enlarged piping downstream of the pressureregulator. Each orifice plate is engineered for specificapplications to maximize noise reduction without reducingregulator capacity.
Consult Factory Representative for muffling orifice plate sizeand pricing.
GP-2000
GP-2000, GP-2000R GP-2000 Remote Mount GP-2000W1P
ArmstrongStrainer
Control Pipe (Pitch Down)
Gate Valve
Gate ValveGate
Valve
Orifice Plate
Safety ReliefValve
Insulation Cover
Muffling Orifice PlateArmstrongTVS Trap
Minimum of 10 InletPipe Diameters from
PRV to First Turn
Minimum of 10 OutletPipe Diameters fromOrifice Plate to Fitting
Note:Safety Relief Valve to be set at0,5 bar higher or 10% higher thanthe downstream pressure, whicheveris greater.
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Application Data - Pressure Reducing Valves
Direct Acting Single Stage Reduction
External Pressure Pilot Single Stage Reduction
GD-30
GP-2000
Globe Valve
ArmstrongStrainer
ArmstrongStrainer
Globe Valve
By-Pass
By-Pass
Gate ValveSafety Relief
Valve
Safety ReliefValve
ArmstrongTVS Trap
ArmstrongTVS Trap
Minimum of 10 OutletPipe Diameters fromLast Valve or Fitting
Minimum of 20 OutletPipe Diameters from
PRV to First Turn
Minimum of 10 OutletPipe Diameters from
PRV to First Turn
Note:Safety Relief Valve to be set at 0,5 bar higher or 10%higher than the downstream pressure, whicheveris greater.
Note:Safety Relief Valve to be set at 0,5 bar higher or 10%higher than the downstream pressure, whicheveris greater.
Typical Direct Acting PRV Installation
Typical External Pressure Pilot PRV Installation
Control Pipe(pitch down)
GateValve
GateValve
GateValve
GateValve
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Pressure and Temperature
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Application Data - Pressure Reducing Valves
This piping application is used when the pressure turndownratio is greater than that of a single valve. Pressure reduction isaccomplished by using two valves in series to reduce thepressure in stages. Depending on the volume of fluid requiredand pressure reduction, the second stage valve typically will belarger in size than the first stage valve.
Unless a specific intermediate pressure of the fluid is required,this intermediate pressure is typically selected so as to keep thepressure turndown ratios of both valves as similar as possible.This will help equalize and maximize the service life of bothvalves.
External Pressure Pilot Two Stage Reduction
GP-2000
GP-2000
GP-2000
GP-2000
ArmstrongStrainer
Globe Valve
By-Pass
GateValve
GateValve
Control Pipe (pitch down)Control Pipe
(pitch down)
Safety ReliefValve
Armstrong TVS Trap
Minimum of 10 InletPipe Diameters from
PRV to First Turn
Minimum of 20Outlet Pipe
Diameters fromPRV to PRV
Minimum of 20 OutletPipe Diameters from
PRV to First Turn
Minimum of 10 Outlet
Pipe Diametersfrom Last
Valve or Fitting
Note:Safety Relief Valve to be set at 0,5 bar higher or 10%higher than the downstream pressure, whicheveris greater.
ArmstrongStrainer
ArmstrongStrainer
Globe Valve
By-Pass
GateValve
GateValve
Control Pipe (pitch down)
Control Pipe (pitch down)
Safety ReliefValve
Armstrong TVS Trap
Armstrong TVS Trap
Minimum of 10 InletPipe Diameters from
PRV to First Turn
Minimum of 20 InletPipe Diameters from
PRV to First Turn
Minimum of 20 OutletPipe Diameters from
PRV to First Turn
Note:Safety Relief Valve to be set at 0,5 bar higher or 10%higher than the downstream pressure, whicheveris greater.
External Pressure Pilot One-Third toTwo-Third Reduction StationThis piping application is used when theflow rangeability is greater than that of asingle valve. Better control is achieved bypiping two valves in parallel and sizing oneto handle 1/3 the maximum load and theother 2/3 the maximum load. These twovalves are staged by offsetting theirpressure set points by 0,2 barg. Thesmaller valve is usually the lead valve andwould have a pressure set point at thedesired pressure. The larger valve isusually the lag valve and would have apressure set point of 0,2 barg below thelead valve. This offset of set points willstage the valves so that the lag valve willremain closed until the lead valve can nolonger pass the required flow and is wideopen. This lack of flow will cause the setpressure to drop slightly until the lag valveopens and regulates at the higher demandsof flow.
Gate Valve
Gate Valve
GateValve
Gate Valve
GateValve
Gate Valve
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Application Data - Pressure Reducing Valves
Air Loaded External Pilot Single Stage Reduction
External Back Pressure Pilot Installation
GP-2000K-1
ArmstrongStrainer
ArmstrongControl Panel
Globe Valve
Air In Air Loading Signal
By-Pass
Gate ValveGateValve
Gate Valve
Control Pipe (pitch down)
Safety ReliefValve
ArmstrongTVS Trap
Minimum of 10 OutletPipe Diameters fromLast Valve or Fitting
Minimum of 20 OutletPipe Diameters from
PRV to First Turn
Minimum of 10 OutletPipe Diameters from
PRV to First Turn
Note:Safety Relief Valve to be set at 0,5 bar higher or 10%higher than the downstream pressure, whicheveris greater.
GP-2000R
ArmstrongStrainer
Gate ValveControl Pipe (pitch down)
Minimum of 10 OutletPipe Diameters fromLast Valve or Fitting
From Low PressureFlash System
Typical External Pilot Back Pressure Installation. Used to maintain a constant upstream pressure in the piping system.
Typical Air Loaded External Pilot Reduction Station. Complete with remote located air loading control panel.
GateValve
GateValve
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Pressure and Temperature
Controls
Sizing Data
When ordering please specify:1. Model number2. Connection size and type3. Quantity4. Service fluid5. Specific gravity (if other than steam, air, water)6. Fluid temperature7. Maximum inlet pressure8. Desired reduced pressure or controlled temperature9. Flow rate10. Special conditions (if any)
Table PTC-236-1. Selection Formulas
CV Value and Calculation KV Value and Calculation (KV = 0,86 CV)
1. For Saturated Steam / Q = kg/h, P = bar (a)
When P2 > Q = Cv 13,5 P (P1 + P2)
When* P2 < Q = Cv 11,7 P1
2. For Liquid / Q = Nm³/h, P = bar (a), G = kg/dm³
Q = 0,86 Cv
3. For Air / Q = Nm³/h, P = bar (a)
When P2 > Q = Cv 22,4 P x P2
When* P2 < Q = Cv 11,2 P1
P1 = Inlet pressure in bar (a)P2 = Outlet pressure in bar (a)∆P = Differential Pressure (P1 - P2)Q = Maximum flow capacityG = Specific gravityCv = Valve flow coefficient
1. For Saturated Steam / Q = kg/h, P = bar (a)
When P2 > Q = Kv 15,88 P (P1 + P2)
When* P2 < Q = Kv 13,76 P1
2. For Liquid / Q = Nm³/h, P = bar (a), G = kg/dm³
Q = Kv
3. For Air / Q = Nm³/h, P = bar (a)
When P2 > Q = Kv 26,36 P x P2
When* P2 < Q = Kv 13,18 P1
* Formula applies to piloted valves only. With direct actingvalves, at critical flow or sonic flow, capacities decrease withgreater differential pressure.
PG
P1
2
P1
2
P1
2
P1
2
P1
2
P1
2
P1
2
P1
2
Ordering Information
Note: 50% reduced ports are available for all 2000 Series - capacities and Cv are reduced by 50%* GD-30 only
Table PTC-236-2. Cv Values
ModelConnection Size
8 10 15 20 25 32 40 50 65 80 100 125 150 200 250GD-30 – – 1,3 1,5 2,5 – 5,6* 8,5* – – – – – – –GDK-2000 – – 5,0 7,2 10,9 14,3 18,8 32,0 60,0 78,0 120,0 – – – –GP-2000 series – – 5,0 7,2 10,9 14,3 18,8 32,0 60,0 78,0 120,0 – 250,0 – –
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DS-1 & DS-2 Cyclone Separator
For Steam and Compressed AirCondensate in steam and air lines reduces thermal efficiency,causes water hammers, corrodes equipment such as valvesand pipes and creates other problems.
Drain Separators DS-1 (1/2” to 2” screwed or with screwed onflanges) and DS-2 (DN65 to DN100 flanged) separate waterefficiently by using the centrifugal force of steam or air createdby shaped path. The simple design of the separator, using aspecific nozzle, minimizes the pressure loss, allowing clean, drysteam or air to be fed to equipment.
Features- A cyclone structure maximizes liquid separation efficiency. - Pressure loss is extremely low. - No moving parts means no breakdowns.
Operating PrincipleWhen steam or air flow enters the drain separator as shown inthe figure at the left, centrifugal force is generated in the fluidbecause of the device's internal structural design. The fluiddrains along the wall because of the difference in specificgravity with steam or air, eventually striking the baffle. Thebaffle guides the fluid to the drain outlet and to the trap, whichdrains it.
Piping Example
Table PTC-237-1. Specifications
Model Nominal Size ApplicationFluid
MaximumPressure
MaximumTemperature
MaterialsConnection Body Hydraulic Test
(Water)Body Nozzle Receiver
DS-1 1/2" - 2"Steam or Air 20 bar for
Steam or Air 220°C FCD 450Nodular Iron
FC 200Cast Iron
FCD 450Nodular Iron
BSPT40 bar
DS-2 DN65 -DN100 PN 25
Body
Drain Separator
DrainOutlet
Install the trap so that itsupper end is positionedbelow the drain outlet
Drain Separator
Steam Trap
Steam Trap
Upper endof trap
Air Trap
Strainer
Strainer
Strainer
Pressure EqualizerDrain Separator
The fluid moves along
the wall due tocentrifugal force
Baffle
To: trap Drain Outlet
Clean anddry fluid
(steam / air)
Receiver
Fluid(steam/ air)
Nozzle
Pres
sure
in b
ar(g
)
Capacity for Steam in kg/h
All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.
Table PTC-237-1. Dimensions and WeightType Size (d) L H H1 do Weight (kg)
DS-1
1/2" 150 243 193 3/4" 7,13/4" 150 243 193 3/4" 7,11" 150 243 193 3/4" 7,3
1 1/4" 190 282 213 1" 12,51 1/2" 190 282 213 1" 12,5
2" 219 342 260 1" 20,5
DS-2DN65 298 418 314 1" 35,0DN80 349 484 361 1 1/4" 45,0DN100 408 594 445 1 1/4" 65,0
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Pressure and Temperature
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Temperature Regulators
Temperature Regulators TypesArmstrong self-actuated temperature regulators are compact,high performance units that are simple in design and operationand suitable for a wide variety of applications. Featuresincluding flexible mounting positions, interchangeable capillariesand several temperature ranges make installation, adjustmentand maintenance quick and easy.
There are three types of temperature regulators in Armstrongproduct range:
Low capacity : our OB-30/31 temperature regulators aresuitable for variety of heating or cooling applications. They canbe used for steam, water and non-corrosive liquids. Availablewith connections up to 1”, they can handle up to 750 kg/h ofsteam or 16 m³/h of water.
High capacity : our OB-2000 temperature regulators are highcapacity valves for steam applications. Used for heating only,they are able to handle up to 30 000 kg/h of steam.
Pressure and Temperature Regulators : our OB-2000PTtemperature regulators have both pressure and temperaturepilots, giving them higher accuracy. Being able to control as welloutlet steam pressure as the temperature of the heated fluid,they can handle up to 30 000 kg/h of steam.
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Temperature Regulators
For Steam, Water and Non-Corrosive Liquid ServiceArmstrong self-actuated externally piloted temperatureregulators are compact, high performance units that are simplein design and operation - and suitable for a wide variety ofapplications. Features including flexible mounting positions of
the sensor, interchangeable capillaries and varied temperatureranges make installation, adjustment and maintenance quickand easy.
Color coded handles (red forheating and blue for cooling) makefor easy identification in the field.
Easy no-tools temperatureadjustment with a simple turn ofthe handle.
Cast bronze body permits liquidservice to 17 bar and steamservice to 10 bar.
Main valve seat materials arestainless steel and Teflon® forhigh durability and positivesealing.
Quick installation and removal ofsensor from main body meanseasy temperature range changes.
Sensor temperature endurance - +40°C ofthe maximum value of the temperature
regulation range. Gas-charged capillaryeliminates chance of capillary charge mixing
with process in case of breakage. Sensorcan be mounted in any position.
Sensors are standard for bothheating and cooling for all sizes
(1/2" - 1"). Standard capillaryunits for heating or cooling are
accurate to within ±4°C.
A single valve with bellows andbalancing mechanism ensures
stable regulation. Not affected bypressure fluctuation.
Braided stainless steel capillaryprotects against crimping.
Table PTC-239-1. Temperature Regulator Valve Selection
If the Service is If the InletPressure is Type of Control Temperature
Ratings (°C)TemperatureAccuracy (°C)
If MaximumCapacity is Less Than
Look for Model Find on Page
Heating
1 - 10 barg Self-Contained DirectActing
0 - 150°C(5 ranges) ± 3°C 792 kg/h OB-30 PTC-240
0,5 - 20 barg Self-ContainedPilot Operated
-8 - 183°C(6 ranges) ± 1°C 29 754 kg/h
OB-2000 PTC-242
OB-2000PT PTC-244
Cooling 0,34 - 17 barg Self-ContainedReverse Acting
0 - 150°C(5 ranges) ± 3°C 16 m³/h OB-31 PTC-240
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Pressure and Temperature
Controls
OB-30/31
For Steam, Water and Non-Corrosive LiquidsThe Armstrong OB-30/31 is a direct acting temperatureregulator that requires no external source for operation. Simpleand compact, the unit is suitable for a wide variety ofheating/cooling applications. Installing, adjusting or maintainingthe OB-30/31 is quick and easy because interchangeable
capillaries mount in any position and disconnect by simplyloosening the union nut. No stem packing so there’s noleakage. Single composition seat for tight shutoff. The OB-30/31comes in 1/2", 3/4" or 1" sizes and is available with a choice offive temperature ranges and three capillary lengths.
* Standard length.Note: Capillary can withstand a maximum of 40°C above rated range. If desired set temperature is in temperature range overlap, select lower range.
* Other materials available upon request
All sizes comply with the article 3.3 of the PED (97/23/EC).
OB-30/31, OBK-2000 and OB-2000/2000PT Thermal Well
Table PTC-240-1. OB-30/31 Specifications
Model Application ServiceMaximum Inlet
Pressure(barg)
MaximumDifferential
(barg)
TemperatureRanges
(°C)
MaximumTemperature
(°C)
TemperatureAccuracy
(°C)
CapillaryLengths
(m)
OB-30 Heating Steam, Water Steam: 10 barg
10
0 - 35
185 ± 3From Set Point
2
3
5*
25 - 70
40 - 100
OB-31 CoolingWater,
Non-CorrosiveLiquids
Liquid: 17 barg60 - 130
70 - 150
Table PTC-240-2. OB-30/31 MaterialsBody Seat Valve Capillary Bulb Thermal Well
BronzeASTM B584
Single Seat304 Stainless Steel Teflon Armor Shielded
304 Stainless Steel Copper-Nickel Plated 304 Stainless Steel orBrass*
Table PTC-240-3. OB-30/31 Dimensions and Weights
Size L(mm)
H1(mm)
H(mm)
T(mm)
K(mm)
R(inch)
Weight(kg) Cv
15 – 1/2" 75 130 320 10 203 1/2" 2,7 3,720 – 3/4" 80 130 320 10 203 1/2" 2,8 4,625 – 1" 90 130 320 10 203 1/2" 3,0 5,8
Table PTC-240-4. Thermal Well Dimensions
Model A(mm)
B(mm)
C(mm)
D(mm)
E(mm)
F(mm)
G(inch)
H(mm)
OB-30/31 20 25 200 6 20 3/4” 1/2” 10OB-2000/2000PT 25 20 195 6 23 1” 3/4” 16OBK-2000 25 20 320 6 20 3/4” 1/2” 13
Standard Material: 304 stainless steel or brass. Other materialsavailable upon request.
Note: When inserting sensor into thermal well, for best results, it isrecommended that heat transfer medium be applied to sensor beforeinstallation.
All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.
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OB-30/31
Temperature Regulator Selection ExampleParameters:
Fluid .............................................................................................................SteamMaximum inlet pressure ....................................................................7 barOutlet pressure ........................................................................................6 barMaximum flow rate ........................................................................227 kg/hTemperature required ..........................................................................82°CDistance from regulator to sensing point.................................1,5 m
To Locate Proper Model:Enter inlet column at ............................................................................7 barMove to outlet pressure of ...............................................................6 barLocate capacity of 227 kg/h underconnection size ...............................................................................................1" Find capillary temperature range ..........................................25-70°CSelect capillary length ............................................................................5 m
Application Will Require: OB-30, 1" with 25-70°C Temperature Range, Capillary Length 5m
Note: If desired set temperature is in temperature range overlap, select lowerrange.
Note: Where it is not possible to calculate pressure drop, 35% - 40% ofgauge supply pressure can be used as a reasonable approximation.
Table PTC-241-1. OB-30/31 Capacities for steam in kg/h
Inlet Pressure(barg)
InletPressure
(barg)
Connection Size1/2” 3/4” 1”15 20 25
0,350,20 30 38 480,14 37 45 580,00 46 57 72
0,7
0,55 34 43 540,41 47 59 750,28 57 70 890,00 70 87 110
1,0
0,83 46 57 720,62 63 78 990,41 75 93 118
0 - 0,35 91 113 143
1,4
1,00 63 79 990,70 82 107 1350,35 100 125 158
0 - 0,14 106 132 167
1,7
1,38 68 85 1061,00 93 115 1450,70 110 136 172
0 - 0,35 122 151 191
2,01,72 72 90 1141,00 117 146 185
0 - 0,48 137 170 215
2,82,00 111 138 1751,38 149 185 234
0 - 0,83 168 209 263
3,52,76 122 151 1912,00 174 205 259
0 - 1,2 199 247 311
4,03,45 132 164 2062,76 180 223 281
0 - 1,5 229 285 360
4,8
4,00 141 175 2213,45 149 193 3022,76 228 284 358
0 - 1,9 260 323 408
5,5
4,83 150 186 2804,00 205 255 3223,45 244 304 383
0 - 2,2 291 361 456
6,0
5,52 157 196 2474,83 217 315 3404,00 259 322 4063,45 290 361 455
0 - 2,6 321 400 504
6,9
6,00 165 205 2595,52 228 284 3584,83 273 340 4284,00 307 382 482
0 - 2,9 353 438 552
8,6
7,59 222 276 3496,90 281 350 4415,52 363 451 5684,83 392 488 615
0 - 3,8 429 534 673
10,0
8,97 278 345 4358,28 335 416 5256,90 417 519 654
0 - 4,3 506 629 793
Table PTC-241-2. OB-30/31 Capacities for water in I/mn
DifferentialPressure
(bar)
Connection Size1/2” 3/4” 1”15 20 25
0,35 30 38 470,70 45 55 701,00 55 67 831,40 63 78 1001,70 70 83 1072,00 77 97 1203,50 100 127 1575,00 123 150 1877,00 143 175 2178,50 160 197 24810,00 175 217 267
Table PTC-241-3. Capillary Temperature Ranges (°C)0 - 3525 - 7040 - 10060 - 130 70 - 150
Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • BelgiumTel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
www.armstrong.be • [email protected] PTC-241
Pressure and Temperature
Controls
OB-2000
For SteamArmstrong’s OB-2000 is a high performance externally pilotedtemperature regulator for large capacity applications such asheat exchangers, steam coils, steam dryers, plating tanks andparts washers. Self-actuated and requiring no external energysource, the OB-2000 comes with pilot valve and tubing pre-
assembled. Capillary units mount in any position and can beeasily disconnected and interchanged, offering easy installationand maximum application flexibility. Available in sizes 1/2"through 4" with six temperature ranges and three capillarylengths.
* Standard length.Note: If desired set temperature is in temperature range overlap, select lower range.
Shade indicates products that are CE Marked according to the PED (97/23/EC). All the other sizes comply with the Article 3.3 of the same directive.Note: DN150 valve is available on request, but is not CE Marked.
Table PTC-242-1. OB-2000 Specifications
Application Inlet Pressure(barg)
MinimumDifferential Pressure
(barg)
Temperature Ranges(°C)
Temperature Accuracy(°C)
Capillary Length(m)
Steam 0,5 - 20 0,5
-8 - 15
± 1 °CFrom Set Point
235*
10 - 3630 - 6255 - 9480 - 127115 - 183
Table PTC-242-2. OB-2000 Dimensions and Weights
SizeFace-to-Face
H1 H2 A F GWeight
CvBSPT PN 25/40 BSPT PN 25/40mm mm mm mm mm mm mm kg kg
15 – 1/2" 150 150 170 74 200 169 222 14 15,4 5,020 – 3/4" 150 150 170 74 200 169 222 14 16,1 7,225 – 1 " 160 160 175 76 226 174 227 18 20,6 10,9
32 – 1 1/4" 180 180 192 90 226 182 235 22 24,4 14,340 – 1 1/2" 180 200 192 90 226 182 235 22 25,3 18,8
50 – 2" 230 230 216 103 276 189 242 33 37,0 32,065 – 2 1/2" – 290 251 122 352 206 259 – 66,5 60,0
80 – 3” – 310 264 135 352 217 270 – 71,8 78,0100 – 4” – 350 321 167 401 234 287 – 113,3 120,0
All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.
Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • BelgiumTel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
www.armstrong.be • [email protected]
Pres
sure
and
Tem
pera
ture
Con
trol
s
OB-2000
Valve Sizing
Proper valve selection requires the following information• Steam capacity required for application• Supply pressure of steam• Allowable pressure drop across valve*
Temperature Regulator Selection ExampleParameters:
Fluid .............................................................................................................SteamMaximum inlet pressure ....................................................................7 barOutlet pressure ........................................................................................6 barMaximum flow rate ........................................................................678 kg/hTemperature required ..........................................................................82°CDistance from regulator to sensing point.................................1,5 m
To Locate Proper Model:Enter inlet column at ............................................................................7 barMove to outlet pressure of ...............................................................6 barLocate capacity of 678 kg/h under .....................................................1" Find capillary temperature range .......................................55 - 94°CSelect capillary length .......................................2 m or standard 5 m
Application Will Require: OB-2000, 1" with 55 - 94°C Temperature Range, Capillary Length 5 m
* Where it is not possible to calculate pressure drop, 35% - 40% of gaugesupply pressure can be used as a reasonable approximation.For capacities see page PTC-245.
Table PTC-243-1. Sensor and Accessory SpecificationsCAPILLARY BULB THERMAL WELL
Material Temperature Range (°C) Material Connection Material Connection
Copper Capillary Tube with
304 Stainless Steel Armor
Shield
-8 - 15
Nickel Plated Copper 3/4" NPTBrass or
304 Stainless Steel*1" BSPT
10 - 3630 - 6255 - 9480 - 127115 - 183
Table PTC-243-2. OB-2000 MaterialsOB-2000 Body Seat Valve Connection Maximum Temperature
Main Valve Ductile IronASTM A536 Single Seat
Stainless SteelAISI 420
Stainless SteelAISI 420
BSPT orFlanged PN 25/40
232°CTemperaturePilot Valve
BronzeASTM B584 1/4" NPT
* Standard. Other material available upon request. See page PTC-240 for dimensional information.Note: Capillary can withstand a maximum of 20°C above rated range. If desired set temperature is in temperature range overlap, select lower range.
All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.
Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • BelgiumTel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
www.armstrong.be • [email protected] PTC-243
Pressure and Temperature
Controls
OB-2000PT
For Steam ServiceThe OB-2000PT is a diaphragm-operated externally pilotedpressure/temperature combination regulator. It is used inapplications where maximum pressure should be limited andthe temperature of the heated medium is controlled using asingle seated main valve. Temperature pilot and capillary unit
disconnect, making repairs or temperature range changes quickand easy. Available in sizes 1/2" through 4" and with a choice offour spring ranges, six temperature ranges and three capillarylengths.
* When using this spring range, remove one (1) pilot diaphragm. Capacities are reduced by 1/2 of capacity chart when this spring is being used. ** Standard length
Table PTC-244-1. OB-2000PT Specifications
Application Inlet Pressure(barg)
MinimumDifferential
(barg)
Reduced Pressure(barg)
Spring Color
TemperatureRanges
(°C)
TemperatureAccuracy
(°C)
Capillary Length(m)
Steam 1 – 20 0,50,1 - 0,2 (yellow)*0,2 - 1,4 (yellow)1,0 - 14 (green)
-8 - 15
± 1°CFrom Set Point
23
5**
10 - 3630 - 6255 - 9480 - 127115 - 183
Table PTC-244-2. OB-2000PT Sensor and Accessory SpecificationsCAPILLARY BULB THERMAL WELL
Material Temperature Range (°C) Material Connection Material Connection
Copper Capillary Tube with
304 Stainless Steel Armor
Shield
-8 - 15
Nickel Plated Copper 3/4" NPTBrass or
304 Stainless Steel* 1" BSPT
10 - 3630 - 6255 - 9480 - 127115 - 183
* Standard. Other material available upon request. See page PTC-240 for dimensional information.Note: Capillary can withstand a maximum of 20°C above rated range. If desired set temperature is in temperature range overlap, select lower range.
Shade indicates products that are CE Marked according to the PED (97/23/EC). All the other sizes comply with the Article 3.3 of the same directive.Note: DN150 valve is available on request, but is not CE Marked.For capacities see page PTC-245.
Table PTC-244-4. OB-2000PT Materials
OB-2000 Body Valve &Seat
Max.Temp.(°C)
Main Valve Ductile IronASTM A536
StainlessSteel
AISI 420232
Temp. PilotValve
BronzeASTM B584
PressurePilot
Ductile IronASTM A536
Table PTC-244-3. OB-2000PT Dimensions and Weights
Size
Face-to-FaceH H1 A G
WeightCv
BSPT PN 25/40 BSPT PN 25/40
mm mm mm mm mm mm kg kg15 - 1/2" 150 150 398 170 200 166 18 20 5,020 - 3/4" 150 150 398 170 200 166 18 21 7,225 - 1" 160 160 404 175 226 178 22 25 10,9
32 - 1 1/4" 180 180 434 192 226 185 26 29 14,340 -1 1/2" 180 200 434 192 226 185 26 30 18,8
50 - 2" 230 230 498 216 276 166 37 42 32,065 - 2 1/2" – 290 552 251 352 166 – 70 60,0
80 - 3" – 310 575 264 352 166 – 77 78,0100 - 4" – 350 658 321 401 166 – 118 120,0
All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.
Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • BelgiumTel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
www.armstrong.be • [email protected]
Pres
sure
and
Tem
pera
ture
Con
trol
s
OB-2000, OB-2000PT
* Minimum inlet pressure for OB-2000PT is 1 barg because of the pressure pilot.
Table PTC-245-1. OB-2000, OB-2000PT Capacities for SteamInlet
(barg)Outlet(barg)
Connection Size1/2" - 15 3/4" - 20 1 " - 25 1 1/4" - 32 1 1/2" - 40 2" - 50 2 1/2" - 65 3" - 80 4" - 100
0,7* 0 - 0,2 96 138 209 274 360 613 1 150 1 495 2 300
1,40,9 99 143 217 284 374 637 1 195 1 554 2 3900,7 115 167 253 332 437 743 1 393 1 812 2 7880,0 142 205 310 406 535 910 1 707 2 219 3 414
1,71,2 107 154 233 307 403 686 1 286 1 672 2 573
0 - 0,3 153 222 335 440 579 986 2 080 2 889 4 446
2,11,6 114 164 248 327 430 731 1 372 1 784 2 746
0 - 0,5 173 249 278 496 652 1 109 2 080 2 889 4 446
2,82,3 127 183 277 364 479 816 1 530 1 966 3 0601,7 179 258 391 512 673 1 147 2 151 2 796 4 302
0 - 0,8 212 305 462 607 798 1 811 2 546 3 536 5 441
3,52,9 148 213 323 424 558 945 1 781 2 343 3 5632,1 222 320 485 637 837 1 426 2 673 3 475 5 348
0 - 1,2 251 362 547 717 944 1 606 3 011 4 183 6 435
4,0
3,5 169 243 369 484 636 1 083 2 031 2 641 4 0643,1 213 307 465 611 803 1 368 2 566 3 336 5 1332,4 265 382 579 759 998 1 700 3 188 4 144 6 376
0 - 1,5 290 417 631 829 1 089 1 854 3 468 4 830 7 430
5,0
4,3 213 307 465 610 798 2 562 3 330 3 330 5 1243,7 268 387 586 769 1 011 3 227 4 196 4 196 6 4553,1 318 459 695 912 1 199 3 827 4 975 4 975 7 654
0 - 2,1 348 501 758 995 1 308 4 175 5 799 5 799 8 877
7,0
7,3 269 388 588 772 1 015 1 015 1 728 4 214 6 4876,8 340 490 742 973 1 280 2 179 4 086 6 312 8 1725,1 414 567 903 1 185 1 558 2 653 4 975 6 468 9 952
0 - 3,7 445 640 970 1 272 1 672 2 847 5 704 7 416 11 409
8,5
7,3 335 482 730 958 1 259 2 144 4 020 5 227 8 0426,8 379 546 828 1 086 1 428 2 431 4 558 5 926 9 1055,1 509 734 1 112 1 459 1 918 3 265 6 122 7 959 12 242
0 - 3,7 541 780 1 181 1 549 2 037 3 468 6 947 9 032 13 897
10,58,7 399 571 871 1 143 1 503 2 559 4 799 6 238 9 5986,8 563 810 1 223 1 610 2 117 3 603 6 756 8 784 13 513
0 - 4,6 638 920 1 392 1 827 2 402 4 089 8 191 10 648 16 382
12,0
10,1 464 668 1 012 1 328 1 747 2 973 5 576 7 249 11 1528,6 611 880 1 332 1 748 2 298 3 912 7 336 9 537 14 6776,8 719 1 036 1 568 2 056 2 706 4 606 8 637 11 229 17 275
0 - 5,5 735 1 059 1 605 2 104 2 766 4 709 9 434 12 265 18 870
14,0
11,7 521 750 1 136 1 490 1 960 3 337 6 257 8 134 12 51510,3 656 944 1 430 1 876 2 466 4 199 7 873 10 235 15 7478,6 776 1 118 1 692 2 220 2 920 4 970 9 320 12 116 18 640
0 - 6,3 833 1 199 1 815 2 382 3 131 5 330 10 678 13 881 21 357
15,5
13,1 586 843 1 277 1 676 2 204 3 751 6 828 9 145 14 06912,0 697 1 005 1 521 1 996 2 624 4 466 8 376 10 889 16 75310,3 829 1 194 1 808 2 372 3 119 5 309 9 955 12 942 19 912
0 - 7,2 929 1 339 2 027 2 659 3 405 5 950 11 921 15 498 23 844
17,0
13,8 737 1 061 1 607 2 109 2 773 4 719 8 850 11 505 17 70112,0 879 1 266 1 917 2 514 3 304 5 628 10 553 13 719 21 10710,3 986 1 421 2 151 2 823 3 711 6 318 11 846 15 400 23 692
0 - 8,0 1 026 1 478 2 238 2 936 3 861 6 571 13 165 17 114 26 331
19,0
13,8 1 096 1 578 2 389 3 135 4 121 7 015 13 153 17 099 22 23812,0 1 166 1 722 2 607 3 421 4 497 7 656 14 354 18 661 25 03410,3 1 277 1 840 2 785 3 653 4 803 8 176 15 330 19 929 27 250
0 - 9,0 1 221 1 758 2 661 3 491 4 617 7 813 14 649 19 044 28 341
20,0
13,8 1 096 1 578 2 389 3 135 4 121 7 015 13 153 17 099 26 30712,0 1 166 1 722 2 607 3 421 4 497 7 656 14 354 18 661 28 70910,3 1 277 1 840 2 785 3 653 4 803 8 176 15 330 19 929 30 660
0 - 9,8 1 221 1 758 2 661 3 491 4 617 7 813 14 649 19 044 29 754
Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • BelgiumTel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
www.armstrong.be • [email protected] PTC-245
Pressure and Temperature
Controls
OBK-2000
Pneumatic Temperature PilotA compact pneumatic temperature pilot with broad temperatureranges, the OBK-2000 can be remotely located away from theregulator valve, an advantage not available with a conventionalcapillary system.
Typical applications include instantaneous or storage tank waterheaters, air make-up units and manufacturing processoperations such as parts washing, die casting and plasticmolding.
Capable of reverse or direct-acting operation, the OBK-2000features a simple design with fewer moving parts for troublefree operation. Other features include supply and controlpressure gauges, a rugged cast brass housing, and precise andrapid response to temperature changes. Brass, stainless steelbulbs and separate wells are available.
Reverse-Acting Operation - For HeatingDuring operation, a temperature change in the medium beingcontrolled creates a change in the length of the sensitivity tube.An increase in temperature lengthens the sensitivity tube (1)and moves the invar rod (2) from the lever (3). The lever pivotsat point B and is moved so the exhaust valve (4) is opened bythe spring at (D). This lever action decreases the supply air atpoint (S) in the control line at point (R) and closes the regulatorvalve. A decrease in temperature shortens the sensitivity tube atpoint (1) and moves the invar rod against the lever point (3).The lever at this point moves against the spring at point (D) toclose the exhaust valve at point (4). This lever action increasesthe pressure in the control line at point (R) and opens the valve.
The sensitivity adjustment screw at point (6) regulates the rateof flow of the supply air to the controller to a change intemperature. Turning the screw clockwise increases thesensitivity by reducing the flow and increasing the responsetime. Turning the screw counterclockwise decreases thesensitivity by increasing flow and reducing the response time.Valve closes on air failure, making it fail-safe.
Operation Reverse Acting - For Heating
OBK-2000
Note: Thermal wells available (see page PTC-240). 304 stainless steel orbrass are standard materials. Other materials available upon request.
Positions A and C show pivot point A and spring C when controller is directacting.
GP-2000KRegulator Valve
(Normally Closed)
Table PTC-246-1. OBK-2000 MaterialsName of Part Material
Body BrassO-rings Silicone Rubber/Buna "N"Valve Phosphor Bronze
Valve Seat Phosphor Bronze
Table PTC-246-2. OBK-2000 SpecificationsDial adjustment range (°C) Standard - 10 to 177Maximum supply air pressure @ room temperature (barg) 2Maximum air consumption (cm/s) 218 - 3Maximum operating pressure (barg) 17Maximum operating temperature (°C) 204Temperature response (°C) 0,3 Mounting (mm) 15Air connections (mm) 3Shipping weight (kg) 1,8Adjustable sensitivity (barg) 0,02 to 0,16Maximum pressure on wells
Stainless steel (barg) 79Copper (barg) 36
All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.
Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • BelgiumTel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
www.armstrong.be • [email protected]
Pres
sure
and
Tem
pera
ture
Con
trol
s
OB-30, OB-2000, OB-2000PT
For Steam ServicePoints to remember when installing:
• Drain condensate at inlet of pressure/temperatureregulator with inverted bucket steam trap.
• Protect temperature regulating valve from dirt and scaleby installing strainer with 100 mesh screen at inlet ofvalve.
• Install shutoff valves on either side of the regulatingvalve along with a by-pass line for maintenancepurposes.
• Install vacuum breaker after the outlet of equipment andbefore the steam trap.
• Install sensor so it is fully immersed in the fluid beingheated.
• If temperature well is used, apply heat transfer mediumto sensor before insertion into well.
• Place thermometer into system in close proximity totemperature sensor for accurate valve adjustment.
• If possible, do not elevate condensate after steam trap.• Determine pressure setting before temperature setting
(OB-2000PT only).
Typical Installation - OB-30, OB-2000 and OB-2000PT
Steam Load Calculations
The calculation formulas for the steam load according to the application can be found in the Condensate Guidelines chapter.
OB-2000PT
ArmstrongStrainer
Globe Valve
GateValveGate
Valve
Gate Valve
By-Pass
Control Pipe (pitch down)
Safety ReliefValve
ArmstrongTVS Trap
Minimum of 10 Outlet Pipe Diametersfrom Last Valve or Fitting
Swing Check Valve(Vacuum Breaker)
ArmstrongF&T Trap
Minimum of 20 OutletPipe Diameters from PRV to
First Turn
Minimum of 10 OutletPipe Diameters from PRV
to First Turn
Note:Safety Relief Valve to be set at0,5 bar higher or 10% higher thanthe downstream pressure, whicheveris greater.
Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • BelgiumTel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
www.armstrong.be • [email protected] PTC-247
Pressure and Temperature
Controls
Control Valve
Erratic control. Costly maintenance. And a valve that “hunts”because it can’t find its set point. They’re familiar control valveproblems. And the all-too-familiar solution? Overkill. Pay morethan you should for a valve that does more than it needs to.
Too often, matching a valve to an application is a matter oftaking what you can get to do the job – an oversized actuator,for instance. Instead of getting what you need. Inefficient? Ofcourse, but until now it’s also been unavoidable.
Accuracy and Control That’s Not Overpriced… or OverkillThe Armstrong control valve gives you exactly what you need toapply the right valve to an application: flexibility. It fills the voidleft by expensive industrial valves that can’t deliver the control
you must have. Designed for steam and hot water service, theArmstrong valve is ideally suited to non-freezing applications inthe 1/2" to 1 1/2" range: reheat coils, pipe coils, food dryers,meat smokers, corrugators, laundry and food processingequipment – to name a few.
The standard Armstrong control valve is reverse acting with aspring return. It uses air to open and fails closed (air to closeavailable – consult factory). The valve meets the vast majorityof typical control valve applications without sacrificingrangeability (minimum controllable flow).
Note: For water service, the valve must be piped in reverse.
Years of successful performancein rigorous steam controlapplications ensures reliability onthe job.
Repairs quickly withoutdismantling the piping.
All trim parts are stainless steelor brass. That means long lifeand reliability – no corrosion todamage the valve or affectperformance.
Unique parabolic plug providesaccurate modulation of flow overcomplete valve stroke.
Externally adjustable start point (1/2" & 3/4"size only) is standard on pneumatic
operator – saves operator time and effort.
Dacron-reinforced siliconediaphragm is fatigue and
temperature resistant.
Standard reverse-acting designwith spring return uses air to
open so it fails closed. (Direct-acting available as an option.)
Suitable for a wide range ofapplications in the 1/2" to 1 1/2"
pipe size range.
Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • BelgiumTel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
www.armstrong.be • [email protected]
Pres
sure
and
Tem
pera
ture
Con
trol
s
Control Valve Selection
Accuracy by Design – Not by AccidentThe secret of accurate control is making sure a valve’s controlcharacteristics match the application. When they do, the valvecontrols accurately (without hunting) and performs reliably.When there’s no match, the valve simply cannot do what theapplication demands.
Armstrong uses a modified parabolic plug to handleexceptionally low output. The modification of true linearcharacteristics provides more precise control when capacityrequirements are very low and the valve is just cracked off theseat. Notice in Figure 249-1 that at point A on the curve morethan half the valve stroke is devoted to 40% of the unit’scapacity. At point B, 1/4 of the stroke is devoted to only 10% ofcapacity. At point C, 10% of the stroke covers less than 5% ofthe unit’s capacity.
How low can the unit control? Table 250-1 on page 250tabulates this function, called rangeability. Rangeability is theratio between the maximum controllable flow and the minimumcontrollable flow through the valve. The higher the rangeabilityof a valve, the more accurately it can control flow when lowoutput is required. If rangeability is too low, the valve will “hunt”excessively when low output is required.
To calculate minimum flow, simply multiply Cv by thepercentages shown in the table. For example, a 5/16" orifice inan ACV-02 has a Cv of 2,5. The lowest output that can becontrolled is 2% of maximum flow.
Modified linear characteristics curve for valves used undermodulating control. The modification of true linearcharacteristics provides more precise control when capacityrequirements are very low and the valve is just cracked off theseat.
Parabolic plug valve configuration permits accurate modulationof flow over the complete stroke of the valve.
100
90
80
70
60
50
40
30
20
10
00 10 20 30 40 50 60 70 80 90 100
CB
A
Figure PTC-249-1. Modified Linear Curve
3/8"
3/8" 3/8" 3/8"
5/16" 1/8"
Figure PTC-249-2. Parabolic Plug Type Valves
PERCENT OF FULL STROKE
PERC
ENT
OF F
ULL
CAPA
CITY
19 mmStroke
All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.
Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • BelgiumTel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
www.armstrong.be • [email protected] PTC-249
Pressure and Temperature
Controls
Control Valve Capacity Calculations
Table PTC-250-1. Control Valve Rangeability (Normally Closed Valves)
ControlValve Model
Valve Rangeability Standard Operators
EquivalentDiameter in Inches
Ratio of Flow
Max:Min
FlowCoefficient
CV
ArmstrongC-1801
SauterAV42 P10
Honeywell MP953D
Honeywell MP953F
BelimoNVF24
Honeywell ML7425A
BelimoAF24SR
Maximum Operating Pressure in barg
ACV-06
1 1/2" 63:1 27,0
N/A 8,6
1,7
10,3 N/A
4,1 6,81 1/4" 69:1 21,01 1/8" 61:1 19,5
1" 53:1 18,02,1 5,2 8,67/8" 44:1 16,0
3/4" 33:1 13,0
ACV-04
1" 53:1 13,0
N/A 8,6 4,8 10,3 4,1 10,3 10,3
3/4" 33:1 10,55/8" 25:1 8,59/16" 105:1 7,01/2" 97:1 6,07/16" 75:1 5,0
ACV-03ECV-03
3/4" 118:1 7,55,5 8,6 5,5
10,3 4,1 10,3 10,35/8" 123:1 6,59/16" 105:1 6,01/2" 97:1 5,5
10,3 8,6 10,37/16" 75:1 4,0
ACV-02ECV-02
1/2" 97:1 4,0
10,3 8,6 10,3 10,3 4,1 10,3 10,3
7/16" 75:1 3,53/8" 70:1 3,05/16" 49:1 2,51/4" 31:1 1,73/16" 18:1 0,91/8" 37:1 0,451/16" 10:1 0,09
Table PTC-250-2. Selection FormulasFor Steam Formula Key
For Water: Q =
For Steam: When P2 > W = 20 x Cv x ∆P x P2
When P2 < W = 10 x Cv x P1
Cv = Valve flow coefficientG = Specific gravity in kg/dm³Q = Maximum flow capacity of liquid in Nm³/hP1 = Inlet pressure in bar(a)P2 = Outlet pressure in bar(a)∆P = Pressure drop (P1 - P2) in barW = Maximum flow capacity of steam in kg/h
0,86 x Cv x ∆P
GP1
2
P1
2
All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.
Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • BelgiumTel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
www.armstrong.be • [email protected]
Pres
sure
and
Tem
pera
ture
Con
trol
s
Control Valve Physical Data
How to OrderBody MaterialA = Cast IronE = T-316 Stainless Steel
Product LineCV = Control Valve
Connection Size02 = 1/2''03 = 3/4''04 = 1''06 = 1 1/2''
Standard Operator TypesPneumatic ModulatingAM = Armstrong C-1801HAM = Honeywell MP953D and FSRAM = Sauter AV42 P10
Electric ModulatingHEM = Honeywell ML7425ABELEM = Belimo AF24SRBNVEM = Belimo NVF24-MFT-US-E
H
H1
A
Table PTC-251-1. Specifications Dimensions and Weights
Model NumberPipe Size
in mmBody Material Trim Material
Vessel Design Limitation
Minimum∆∆ P
Ain mm
H1
in mmWeightin kg
Control ValveACV-02ACV-03ACV-04ACV-06
1/2"3/4"1"
1 1/2"
Cast Iron300 Series
Stainless Steel
17 bar @ 204°C0,14 bar
105108140203
29334862
4,44,85,310,0
ECV-02ECV-03
1/2"3/4"
T-316Stainless Steel 27,5 bar @ 204°C 105
1082933
3,94,3
Table PTC-251-2. Physical Data “H” Dimensions in mm
Model Number Armstrong C-1801Honeywell MP953D
Honeywell MP953F
SauterAV42 P10
HoneywellML7425A
BelimoAF24SR
BelimoNVF24-MFT-US E
ACV/ECV-02 216 178 302 361 313 386 295ACV/ECV-03 225 187 311 370 322 395 305
ACV-04 – 203 324 386 338 411 318ACV-06 – 229 352 415 367 440 346
All sizes comply with the article 3.3 of the PED (97/23/EC).
All dimensions and weights are approximate. Use certified print for exact dimensions. Design and materials are subject to change without notice.
Armstrong International SA • Parc Industriel des Hauts-Sarts (2e Avenue) • 4040 Herstal • BelgiumTel.: +32 (0)4 240 90 90 • Fax: +32 (0)4 248 13 61
www.armstrong.be • [email protected] PTC-251
Pressure and Temperature
Controls