PressureReducingValvesDirect acting, internallyand externally pilotedpressure reducing valvesand temperature regulatorsfor steam, air, water,non-viscous liquids andnon-corrosive gases.

Catalog AY-110-H

2

© 1998 Armstrong-Yoshitake, Inc.Designs and materials are subject to change without notice.

Bringing Energy Down to EarthSay energy. Think environment.And vice versa.Any company that is energy conscious is also environ-mentally conscious. Less energy means less waste,fewer emissions and a healthier environment.

In short, bringing energy and environment togetherlowers the cost industry must pay for both. By helpingcompanies manage energy, Armstrong products andservices are also helping to protect the environment.

Armstrong has been sharing know-how since weinvented the energy-efficient inverted bucket steamtrap in 1911. In the years since, customers’ savingshave proven again and again that knowledge notshared is energy wasted.

3

Introduction 4

Pressure Reducing Valve Selection Chart 5

Direct Acting PRVs 6

GD-30 7

GD-50 8

GD-6N, GD-6 9

GD-10, GD-10F, AF-10 10

GD-24 11

GD-20 12

GD-2000K (Pneumatic Loaded) 21-22

Internally Piloted PRVs 13

GP-31/32, GP-18/28, GP-1 14-16

Externally Piloted PRVs 17

GP-2000 (Pressure Pilot) 18

GP-11S 19

GP-2000K-1, GP-2000K-2 (Pneumatic Loaded Pilot) 20

Control Panels & Air Loaders 23

OBK-2000 (Pneumatic Temperature Pilot) 24

GP-2000R (Back Pressure Pilot) 25

Capacity Chart(GP-2000, 2000K-1, 2000K-2, GD-2000K,GP-2000R, GP-11S) 26

GP-2000 (On/Off) 27

Temperature Regulators 28

OB-30/31 (Self-Contained) 29-30

OB-2000 (Pilot Operated) 31-32

OB-2000PT (Pressure/Temperature Combination) 33-34

Typical Installation 35

Installation Drawings 36-38

Sizing Data 39

Metric Tables 40-47

Table of Contents

4

Helping You Make the Most of Your ResourcesArmstrong pressure reducing valves(PRVs) and temperature regulatorshelp you manage steam, air andliquid systems safely and efficiently.And assure uninterrupted productiv-ity—by maintaining constant pres-sure or temperature for processcontrol. In short, Armstrong productsmake using resources safe andproductive…as well as environmen-tally sound.

For decades, Armstrong hasdevoted itself to learning—andsharing—all it can about energyconservation as it relates to steamequipment. As part of our product/service network, PRVs and tempera-ture regulators represent expandedoptions for a reliable Armstrongsolution.

PRV TypesSteam, liquids and gases usuallyflow at high pressures to the pointsof final use. At these points, apressure reducing valve lowers thepressure for safety and efficiencyand to match the requirements of theapplication. There are three typesof pressure reducing valves.

Direct Acting. The simplest ofPRVs, the direct acting type oper-ates with either a flat diaphragm orconvoluted bellows. Since it is self-contained, it does not need an externalsensing line downstream to operate.It is the smallest and most economi-cal of the three types and designedfor low to moderate flows. Accuracyof direct acting PRVs is typically +10%of the downstream set point.

Internally Piloted Piston-Operated. This type of PRV incor-porates two valves—a pilot andmain valve—in one unit. The pilotvalve has a design similar to thedirect acting valve. The dischargefrom the pilot valve acts on top of apiston which opens the main valve.This design makes use of inletpressure in opening a larger mainvalve than could otherwise beopened. As a result, there is agreater capacity per line size andgreater accuracy (+5%) than withthe direct acting valve. As withdirect acting valves the pressureis sensed internally eliminating theneed for an external sensing line.

Externally Piloted. In this type,double diaphragms replace thepiston of the internally piloteddesign. This increased diaphragmarea can open a larger main valve,allowing a greater capacity per linesize than the internally piloted valve.In addition, the diaphragms are moresensitive to pressure changes, andthat means accuracy of +1%.This greater accuracy is due to thelocation, external of the valve, ofthe sensing line where there is lessturbulence. This valve also offersthe flexibility to use different typesof pilot valves (i.e., pressure,temperature, air loaded, solenoidor combination).

5

15 to 285

30 to 30015 to 425

20 to 230

15 to 150

0 to 2500 to 300

15 to 250

30 to 25030 to 300

Pressure Reducing Valve Selection

Temperature Regulator Valve Selection

If the Service is

15 to 150

10 to 285

5 to 250

Type of Control

From 32°Fto 302°F5 Ranges

From 18°Fto 361°F6 Ranges

From 32°Fto 302°F5 Ranges

AccuracyIf MaximumCapacity isLess Than

Look for ModelIf Maximum Capacity

is Less ThanIf Outlet

Pressure isIf Inlet

Pressure isIf the Fluid is

3 to 603 to 1155 to 1201.5 to 2003 to 1405 to 1755 to 1751.5 to 248

7 to 803 to 607 to 100

5 to 1255 to 1253 to 605 to 1207 to 1003 to 1505 to 1755 to 175

15 to 150

Self-ContainedDirect Acting

Self-Contained

Pilot Operated

Self-ContainedReverse Acting

Find onPage

425 lbs/hr740 lbs/hr72,099 lbs/hr58,032 lbs/hr1,132 lbs/hr186,496 lbs/hr221,710 lbs/hr25,706 lbs/hr

155 GPM18 GPM1,292 GPM

931 SCFM1107 SCFM153 SCFM25,955 SCFM11,000 SCFM408 SCFM67,135 SCFM79,815 SCFM

If InletPressure is

TemperatureRanges

Find onPage

Heating

Cooling

30 to 250

+7°F 1,745 lbs/hr

+2°F 58,032 lbs/hr

+7°F 70 GPM

Steam

Water and Non-Corrosive

Liquids

GD Models are Direct Acting GP Models are Pilot Controlled

Air and Non-Corrosive

Gases

15 to 150

GD-6N 9GD-30 7GP-100, GP-32 14GP-2000 Series 18GD-30 & GD-50 7,8GP-18/28 14GP-1 14GP-11S 19

GD-24 11GD-6 9GD-20 12

GD-10F 10GD-10 10GD-6 9GP-31A, 32A 14GD-20 12GD-30 & GD-50 7,8GP-18A, GP-28A 14

GP-1A 14

Look for Model

OB-30 29

OB-2000 31

OB-2000PT 33

OB-31 29

6

Direct ActingFor Steam, Air, and Non-Corrosive Gas Service

The simplest of pressure reducingvalves, the direct acting typeoperates with either a flat diaphragmor convoluted bellows. Since it is

self-contained, it does not need anexternal sensing line downstream tooperate. It is the smallest and mosteconomical of the three types and is

designed for low to moderate flows.Accuracy of direct acting PRVs istypically +10%.

Bronze body forcorrosion resistance.

Convoluted phosphorbronze bellows allowssmaller body size thanconventional direct=actingdiaphragm PRVs.

Stainless steel stem andbronze body minimize thesticking common withconventional values.

Hardened stainless steelvalve and seat withspring return to assuretight shutoff.

Integral mesh strainereliminates fouling due to dirt.

Integral sensing port toelimiante piping of

external sensing line.

Downstream pressuresensed outside the

bellows vs. inside, whichassures bellows integrity

and longer bellows life.

Interchangeable rangespring is easily changed

to different pressureby removing four (4)

cap screws.

Plastic cap doesn'tabsorb heat so it won't

burn an operator'shands. Permits changing

of set pressure withouttools. Simply lift cap and

turn to desired setting.

7

GD-30For Steam, Air, and Non-Corrosive Gases

The GD-30 is a compact, highperformance direct acting valve.Economical to buy and use, it’sideal for those low to moderate flowapplications where accuracy of

+10% is acceptable. The GD-30is well suited for laundry and drycleaning equipment, hospitalequipment, tire molds, humidifiers,small heaters and applications in

food processing. It provides tightshutoff for dead-end service onsteam and can be mounted inany position.

Direct Acting

All dimensions and weights are approximate. Use certified print for exact dimensions.

1"Inlet

(psig)Connection Size

15

20

30

40

50

7

137

23153

32204

40205

49

5342

625333

997940

1309948

56

6155

716040

1219755

14311562

92

10563

11210160

18715977

24218788

1"Inlet

(psig)Connection Size

120

150

180

200

250

Outlet(psig)

Outlet(psig)

Table 7-2. GD-30 Capacities—Steam (lbs/hr)

60

484018

13715090

154165104

265289170

6 55 73 99

80

645423

176187121

205225137

342353220

8 60 77 108

806640

203225198

242262231

397437375

10 68 79 132

1198

216180

242209139

407330159

539407193

584617374220

738782489231

863958837297

2"297

331264

408309216

617517264

837628297

899969584331

1,1681,201749363

1,3551,4651,278473

100

14012070

525551463

606584529

1,0141,038893

25 276 320 529

14011585

485496463

573584540

948961904

23 254 298 496

967045

231276240

276311267

452518450

12 110 121 198

1208555

287364298

333421353

551705595

15 132 165 254

14011570

408430386

485507430

794860739

18 165 187 309

14011580

461474430

518540496

871904827

20 209 242 386

2,2262,2481,9391,146

2,0602,0711,9831,079

9911,168980462

1,2121,5311,278562

1,7191,8291,619683

1,9832,0051,818848

3,4383,4712,9971,796

3,1953,2073,0631,675

1,5201,8181,509705

1,8622,3692,005848

2,6772,8322,5011,035

3,0633,0852,8101,300

225

2"/2"1 /4"3 /2"1 1/2"1 /4"3 /2"1

NOTE: For air capacities (SCFM), multiply steam capacities by 0.36.Maximum pressure reduction ratio 10:1

GD-30

Also available with BSPT threads. Consult factory.

L

H

H1

ServiceBody Valve/Seat Bellows

PhosphorBronzeASTMB103

15-250 7 450Cast

BronzeASTMB584

SteamAir

Non-CorrosiveGases

3-157-60

50-140

HardenedStainlessSteel AISI

420

MATERIALSMaximum

Temperature (°F)

InletPressure

(psig)

ReducedPressure

(psig)

MinimumDifferential

(psig)

Table 7-1. GD-30 Specifications

1/2"Connection Size

1

2.51.3

Table 7-3. GD-30 Dimensions and Weights

Symbol

L (in)

H1 (in)

H (in)

Wt (lbs)

Cv

185.6

2"

8.5

1/2" 11/2"

31/8

71/2

41/4

33/8

71/2

41/4 183/4

1.5

41/4

71/2

33/4 51/2

121/8 121/8

57/8

2 2 2 3 3

8

Connection Size1"

7

2.51.51.3

Table 8-3. GD-50 Dimensions and Weights

Symbol

L (in)

H1 (in)

H (in)

Wt (lbs)Cv

155/64

1/2"

43/843/843/8

155/64155/64

3/4"

815/64 815/64 815/64

61/261/2

For Steam, Air and Non-Corrosive Gas Service

GD-50 Pressure Reducing Valve

The GD-50 is a compact, high-performance direct-acting valve.Inexpensive to buy and use, it isideal for those moderate flow

applications which do not justify thehigher cost of pilot-controlled valves.The GD-50 is well suited for laun-dry and dry cleaning equipment,

hospital equipment, tire molds,humidifiers, small heaters andapplications in food processing.It provides tight shutoff for dead-end service on steam.

NOTE: For air capacities (SCFM), multiply steam capacities by 0.36.Maximum pressure reduction ratio 10:1

Also available with BSPT threads. Consult factory.

ServiceBody Valve/Seat Bellows

PhosphorBronzeASTMB103

15-250 7 410

CastIron

ASTMA278

SteamAir

Non-CorrosiveGases

7-25

20-8050-140

HardenedStainless

Steel AISI 420

MATERIALS

T

MaximumTemperature

(°F)

InletPressure

(psig)

ReducedPressure

(psig)

MinimumDifferential

(psig)

able 8-1. GD-50 Specifications

3-15

7-60

All dimensions and weights are approximate. Use certified print for exact dimensions.

GD-50

L

H

H1

1"Inlet

(psig)Connection Size

15

20

30

40

50

7

137

23153

32204

40205

49

5342

625333

997940

1309948

56

6155

716040

1219755

14311562

92

10563

11210160

18715977

24218788

1"Inlet

(psig)Connection Size

120

150

180

200

250

Outlet(psig)

Outlet(psig)

Table 8-2. GD-50 Capacities—Steam (lbs/hr)

60

484018

13715090

154165104

265289170

6 55 73 99

80

645423

176187121

205225137

342353220

8 60 77 108

806640

203225198

242262231

397437375

10 68 79 132

100

14012070

525551463

606584529

1,0141,038893

25 276 320 529

14011585

485496463

573584540

948961904

23 254 298 496

967045

231276240

276311267

452518450

12 110 121 198

1208555

287364298

333421353

551705595

15 132 165 254

14011570

408430386

485507430

794860739

18 165 187 309

14011580

461474430

518540496

871904827

20 209 242 386

225

/2"1 /4"3 /2"1 /4"3

9

Connection Size∆P

51015255075

100125147

1"3.44.75.87.5

10.613.015.016.818.2

2.23.23.95.07.18.7

10.011.212.1

1.11.61.92.53.54.35.05.66.1

.81.11.41.82.53.03.53.94.2

1/2"3/8" 3/4"

Table 9-4. GD-6 Capacities—Water (GPM)

Table 9-3.GD-6N/GD-6 Dimensions and Weights

Connection SizeSymbol 1"L (in) 61/2 71/4H (in) 91/2 101/4H1 (in) 21/4 21/4 3 3E (in) 61/8 7 7

Wt (lbs) 12 12 18 18Cv .35 .5 1.0 1.5

61/2 71/491/2 101/4

61/8

1/2"3/8" 3/4"

1/2" 3/4"3/8"15

20

25

30

40

Outlet(psig) 1"3-8 18 25 51

13 12 17 34

3-10 21 30 59

18 14 20 41

15 19 28 55

3-12 24 34 68

23 16 23 47

20 21 30 59

3-15 27 38 76

32 21 30 60

25 28 40 79

4-20 33 47 94

Inlet(psig)

Connection Size

76

51

89

61

83

102

71

89

115

90

119

140

50

60

75

100

125150

40 25 36 73 10932 33 47 94 141

5-25 39 55 111 16648 30 43 55 12840 37 53 107 160

6-30 45 64 128 19260 37 52 104 15648 47 67 135 202

7-37 54 77 153 23065 61 87 173 260

10-50 69 98 196 294

13-60 84 119 239 35815-60 99 142 283 425

Outlet(psig) 1"

Inlet(psig)

Connection SizeTable 9-2. GD-6N Capacities—Steam (lbs/hr)

1/2" 3/4"3/8"

ReducedPressure

(psig)

Table 9-1. GD-6N/GD-6 SpecificationsMATERIALS

Model ApplicationInlet

Pressure(psig)

MaximumTemperature

(̊ F) Body Main Valve Valve Seat Diaphragm

GD-6N Steam15-150

450 CastIron

ASTMA278

Stainless SteelAISI 304

Stainless SteelAISI 420 Stainless Steel

AISI 304GD-6 LiquidGas

3-15and

15-60 175 Brass (w/Disc)ASTM B16

BronzeASTM B584

MinimumDifferential

(psig)

7

Direct ActingGD-6N (Steam), GD-6 (Liquid, Gas)

The GD-6N and GD-6 are compact,direct acting diaphragm valvesideal for low-flow applications,including laundry/dry cleaningequipment, hospital equipment, tire/plastic molds and food processing.Lightweight and compact, the

valves mount in any position andrequire no external sensing lines oradditional parts. External adjustingscrew with locking nut and covermake for quick, easy setting andadjustment. Tight shutoff for dead-end service. Removable stainless

steel diaphragm, hardenedstainless steel working parts (6N),integral removable strainer (6N)and in-line renewable valve andseat. Available in 3/8", 1/2", 3/4" and 1"sizes with a choice of two setpressure spring ranges.

NOTE: For air capacities (SCFM), multiply steam capacities by .36.Maximum pressure reduction ratio 10:1

All dimensions and weights are approximate. Use certified print for exact dimensions.

H1

H

E

L

GD-6N

For Steam, Air and Water

10

2"**3/4"

Table 10-5. GD-10/GD-10F Capacities—Air (SCFM)

15

30

40

50

Connection SizeOutlet(psig)

82320

5-153225

5-204032

5-25

Inlet(psig)

25252740283746344454

464351745268866381

102

10498115166116153192141182227

756048

7-37

486376

90117140

202261314

100

125

150

Connection SizeOutlet(psig)

8065

10-50

11780

13-6212585

15-75

Inlet(psig)

638197

4510111885129139

118150180

85187220159239259

264336403

190419491356535579

175125100

18-87

126148161

234276299

523616667

250

12520-10025-125

160182224

298338417

665755931

200

300 30-150 267 496 1107

2"**579720852

112780611391426104513551687150319412339

24962991

1958

1410310836432640396842953884457350204934559970058329

350** 40-175 9652425** 75-200 11467

1/4", 3/8", 1/2" 3/4" 1", *11/4", 11/2" 1/4", 3/8", 1/2" 1", *11/4", 11/2"

Connection SizeSymbol

L (in)

H (in)H1 (in)

Wt (lbs)

1"

10

3

7

22

Table 10-4. AF-10 Dimensions and Weights

2 2

1/2" 3/4"3/8"1/4"23/4 23/4 23/4 37/8 43/463/8 63/8 63/8 113/8

63/853/453/453/463/893/8

Connection SizeSymbol

L (in)

H (in)H1 (in)

Wt (lbs)

Table 10-3. GD-10F Dimensions and Weights

CV 1.4 1.4 1.4 2.6

1/4" 3/8" 1/2" 3/4"37/823/423/423/4

93/8 93/8 107/853/453/453/4

21/2 21/2 41/2 41/2

L (in)H (in)H1 (in)

Wt (lbs)

25/8

CV

21.4 1.4 1.4 2.6

3

6

2"

Table 10-2. GD-10 Dimensions and Weights

Symbol

5.8 4310

1/4" 3/8" 1/2" 3/4"25/8 25/8 31/2 41/4

1" 11/4" 11/2"

71/8 93/457/853/853/853/811/2 11/2 11/2 11/211/2 11/2 11/2

23/8 39/16

MATERIALSApplication

InletPressure

(psig)

ReducedPressure

(psig)

MinimumDifferential

(psig) Body Main Valve Valve Plug Diaphragm

0-300 5-125 7

Zinc

Nitrile

MaximumTemperature

(˚F)

175

Table 10-1. GD-10/GD-10F/AF-10 Specifications

Brass

Nylon 1"-2"

Bowl

—

Model

GD-10

GD-10F

AF-10

Air and OtherNon-Corrosive

Gases0-250 5-125 7

Zinc

Aluminum 1"-2"

Zinc Nitrile175 BrassZinc

0-250 — — —175Zinc

Aluminum 1"

Zinc

Aluminum 1"

Air and OtherNon-Corrosive

Gases

Air and OtherNon-Corrosive

Gases— —

Zinc

Aluminum 1"-2"1/4",3/8",1/2",3/4" 1/4",3/8",1/2",3/4"

1/4", 3/8", 1/2", 3/4"1/4", 3/8", 1/2", 3/4"

1/4", 3/8", 1/2", 3/4"

GD-10, GD-10F, AF-10For Air and Non-Corrosive Gases

The GD-10/10F is a lightweightdirect acting diaphragm valve usedprimarily for pneumatic tool air supplyand non-hazardous gas regulation.Screwed connections make it easyto support in any position withoutexternal sensing lines or other parts.

Zinc or aluminum bodies eliminate rustand scale. Plug, seat and diaphragmare renewable in-line, and you canmake quick adjustments externally withlocking handle. Quarter-inch pressuregauge connection is standard, and allunits are capable of tight shutoff for

dead-end service. GD-10 availablein sizes 1/4" - 2". Highly efficientModel AF-10 air filters with zinc oraluminum bodies are used toremove liquids and solid particlesfrom compressed air. The AF-10is available in sizes 1/4" - 1".

*GD-10F not available above 3/4". **2" GD-10 valve maximum inlet pressure is 425 PSI.

NOTE: For 1/2" 316 stainless steel air valve, consult factory.

All dimensions and weights are approximate. Use certified print for exact dimensions.

➤

➤

➤

➤

H1

H

➤

L ➤

GD-10 GD-10 2" ➤

➤

➤

H1

➤➤

Hs

L➤

GD-10F

➤

➤ ➤

➤

➤

➤

H1 H

LAF-10

H

H1

L

11

Table 11-3. GD-24 Dimensions and WeightsConnection Size

SymbolL (in)

H1 (in)H (in)

Wt (lbs)Cv

2"

16

10

6

18

74

1"4

3

2

2

4

1.5

1/2" 3/4" 11/2"11/4"31/4 31/2 43/4

31/421/213/473/4 81/2 95/8 111/4

31/2 41/2

311/2

71/4

131/2103/871/451/4

Connection Size∆P(psig) 1" 2"

71015255075

100125150175200

3568

11131517182021

467

1014171921232527

710121521263034374042

913162028354045495357

1622273550617078869399

223239507187

100112123132141

Table 11-2. GD-24 Capacities—Water (GPM)

1/2" 3/4" 11/2"11/4"

Table 11-1. GD-24 SpecificationsMATERIALS

ApplicationMaximum Inlet

Pressure(psig)

ReducedPressure

Range (psig)

MinimumDifferential

(psig) Body Main Valve Valve Seat Diaphragm

*With Viton diaphragm, maximum temperature is 250°F. **Viton optional.

Hot orCold

Water20-230 7-80 7 Cast Bronze

ASTM 584Cast BronzeASTM 584

StainlessSteel

AISI 304NBR**

MaximumTemperature

(°F)

175°F*

GD-24For Water

service. Valve, seat and diaphragmare renewable in-line. Externaladjusting screw with lock.Six sizes, 1/2" through 2".

An industrial-grade valve for watersystems, the GD-24 is lightweight,compact and economical. Comeswith screwed connections and will

mount in any position. Requires noexternal sensing lines. Bronze bodyand high-temperature diaphragmsuitable for hot or cold water

All dimensions and weights are approximate. Use certified print for exact dimensions.

NOTE: Maximum pressure reduction ratio 10:1

Direct Acting

GD-24

H1

H

L

12

Size Face-to-Face (in) A (in) H (in) H1(in) Cv

Weight(lbs)

2" 6 16 437 28 88

3" 36 974" 9 68 1545" 15 10 33 75 3176" 11 108 381

Table 12-4. GD-20 Dimensions and Weights

21/2" 105/8105/8121/8

75/8

71/2

153/4 359/16

229/16

211/2

251/16

161/4 31/841/16

49/16

51/461/271/2

Table 12-2. GD-20 Capacities—Air (SCFM)Connection Size

2" 3" 4" 5" 6"1,975

1,320

2,307

1,575

2,151

2,639

1,826

2,300

3,949

2,325

3,072

3,638

2,809

3,656

4,300

3,315

4,152

4,966

4,054

5,237

6,158

3,824

6,315

7,625

6,511

8,385

9,288

9,650

10,185

11,000

1,371

917

1,602

1,094

1,494

1,833

1,268

1,598

2,742

1,615

2,134

2,526

1,951

2,539

2,986

2,302

2,883

3,448

2,816

3,637

4,141

2,656

4,385

5,295

4,521

5,823

6,450

6,701

7,073

7,640

1,243

831

1,452

991

1,354

1,662

1,150

1,448

2,486

1,464

1,934

2,291

1,769

2,302

2,707

2,087

2,614

3,126

2,553

3,297

3,755

2,408

3,976

4,801

4,050

5,280

5,848

6,076

6,413

6,927

658

440

769

525

717

880

609

767

1,316

775

1,024

1,213

936

1,218

1,433

1,105

1,384

1,655

1,351

1,745

1,988

1,275

2,105

2,542

2,170

2,795

3,096

3,217

3,395

3,667

512

342

598

408

558

684

474

596

1,024

603

797

943

728

948

1,115

859

1,076

1,288

1,051

1,358

1,546

992

1,637

1,977

1,688

2,174

2,408

2,502

2,640

2,852

283

196

340

233

320

396

270

340

441

344

460

537

418

544

640

491

620

736

600

780

884

567

936

1,130

965

1,242

1,376

1,430

1,509

1,630

8

13

2-10

18

15

2-12

23

20

3-15

32

25

4-20

40

32

5-25

48

40

6-30

60

48

7-37

90

70

10-50

100

80

13-60

100

90

15-80

15

20

25

30

40

50

60

75

125

100

150

Inlet(psig)

Outlet(psig) 21/2"

ApplicationInlet

Pressure(psig)

ReducedPressure

(psig)

MaximumTemperature

(˚F)

MinimumDifferential

(psig) Body MainValve

2"-3" 4"-6"150 7-36 7-36 175 7

CastIron

ASTMA48

NBR37-100 37-72

MATERIALS

Valve Seat Diaphragm Connection

BronzeB-16

Alloy 377NBR

ANSI125 lb

Flg

Table 12-1. GD-20 Specifications

LiquidGas

GD-20

service life. Well suited to non-viscous liquid pressure reduction,the valve is widely applied indomestic water applications,construction equipment, irrigation,tank car loading and industrial or

The GD-20 offers high capacity andhighly accurate control with a large,cupped diaphragm for a long stroke.Compact and rugged, the GD-20’scomposition valve and bronze seatmean high performance over a long

commercial air conditioning.Upstream variations do not affectbalanced pressure valve, andcomposition disc assures tightshutoff. Turndown ratio is 10:1,and sizes range from 2" through 6".

Connection Size∆P(psig)

71015202535507585100125143

152215263304340402481589627680760813

81114140161180213255312332360402430

365162728095113139148160179191

21/2" 3" 6"

242342418483540639764935996

1,0801,2071,292

5"

6389

109125140166198242258280313335

4"2"

168237291336375444530650691750838897

For Air, Water, Non-Corrosive and Non-Viscous Liquids

NOTE: Minimum flow is 1.3 GPM.

All dimensions and weights are approximate. Use certified print for exact dimensions.

NOTE: Maximum pressure reduction ratio 10:1

Table 12-3. GD-20 Capacities—Water (GPM)

H1

H

A

NOTES: Available in sizes below 2" upon request.Differential valve (GD-21) available upon request.Back pressure valve (GD-20R) available upon request.

13

Internally PilotedFor Steam, Air, and Non-Corrosive Gas Service

This type of PRV incorporates twovalves—a pilot and main valve—in one unit. The pilot valve has adesign similar to the direct actingvalve. The discharge from the pilot

valve acts on top of a piston whichopens the main valve. This designmakes use of inlet pressure inopening a larger main valve thancould otherwise be opened directly.

As a result, there is a greatercapacity per line size and greateraccuracy (+5%) than with thedirect acting valve.

Internally Piloted

Removable cap to alloweasy adjustment.

Enclosed spring chambereliminates diaphragm orspring fouling due toatmospheric conditions.

Inlet screen minimizes foulingof pilot value due to dirt.

Dual seating surfacesconstructed from hardenedstainless steel reduce wiredrawing on low loadapplications adding to along service life.

Pilot valve and seatremovable with PRV in line.

Carbon rings to minimizepiston seizing.

Internal sensing porteliminates downstream

piping, allowing easyinstallation in tight spots.

Main valve and seatremovable with PRV in line.

Characterized portsstabilize control over

entire stroke of the valve.

14

GP-100, GP-32, GP-18/28, GP-1

GP-18GP-28

ModelNumber Inlet

(psig)Reduced

(psig)Application Body Main Valve/

Valve SeatPilot Valve/

Seat

GP-100GP-32 Steam 450

Cast IronASTM A48

CL30

StainlessSteel

AISI 403(Valve)

Stainless SteelAISI 403/420

15-150 5-125GP-31AGP-32A

Air & Gas 250

GP-18AGP-28A

Steam 450 Stainless SteelAISI 403/420

30-2505-115

115-175 Air & Gas 250

GP-15-60

Steam 535CarbonSteelASTM

GR. WCB

30-30060-175

Air & Gas 250

StainlessSteel

AISI 420(Seat)

*Piston/Cylinder Diaphragm

PistonBronze

ASTM C83600

Stainless SteelAISI 304

Table 14-1. GP-100, GP-32, 31A/32A, 18/28, 18A/28A, GP-1/1A Specifications

GP-1A

MaximumTemp.(°F)

Stainless SteelAISI 403/420w/Teflon Disc

Stainless SteelAISI 403/420w/Teflon Disc

Stainless SteelAISI 403/420w/Teflon Disc

Stainless SteelAISI 403/420

Stainless SteelAISI 420

MinimumDiff.(psig)

10

10

15

Pressure

CylinderBronze

ASTM C36000

StainlessSteel AISI 420

For Steam, Air, and Non-Corrosive Gas

The GP-100, GP-32, GP-18/28,GP-1 Series valves are pilot-controlled for accurate regulationof pressure under wide-rangingflow. Internal pilot design elimi-nates external componentsand piping.

Internally piloted GP-Series valvesare capable of larger capacity andgreater accuracy than direct actingvalves. Bodies have three pressure

strainer team up to provide highperformance over a long, trouble-free service life. Valves areequipped with a caged mainvalve assembly (separateshutoff surfaces and flow controlports), piston valve rings forlonger life and an externaladjusting screw with lockingnut and cover. All working partsare renewable in-line. For airservice, a Teflon® seat assurestight shutoff.

ratings to assure the most econom-ical match to your application.Internally piloted GP-Series valvesare best suited for use in continu-ous distribution applications.

Completely supported by piping,lightweight GP-Series valves installeasily with NPT or flanged connec-tions. A stainless steel diaphragm,hardened stainless steel workingparts and integral removable

GP-28GP-32GP-100

NOTE: Sizes 2" and below are NPT connections. Sizes 2" and larger are standard with flanged connections.Models GP-100, GP-32 are available with air-loaded pilots - consult factory.GP-18/28 & GP-1 maximum reduction ratio 10:1GP-100, GP-32 maximum reduction ratio 20:1*AISI 420 stainless steel piston & cylinder available - consult factory.**6" & 8" GP-28 available only in 5-57 & 57-115 spring. 10" GP-28 available only in 5-57.

**

15

Connection SizeSymbol

L (in)H1 (in)

H (in)GP-1/1A wt (lbs)

Cv

Table 15-3. GP-1/1A Dimensions and Weights

6"

31513152

5"

353114

4"

2522679.5

11336

3"

52215046

175914

2"*

7420.8

11/4"11

17599.7

1"

506.25

931/814313.5

3/4"

33/4 33/431/2101/4

161/2

111/811/2"

117/841/4181/2

113/821/2"

203/4

133/851/2 63/4

153/8

295/883/4

201/283/4

191/4

Connection SizeSymbol 1" 2"* 3" 4" 5" 6" 8" 10"

L (in) 12 12H (in) 12 12 15 15 15 16 19 20 23 27 30 32 34H1 (in) 3 3 4 4 4 4 5 6 6 9 9 11 13

GP-18/18A wt (lbs) 22 22 35 38 42 58 — — — — — — —GP-28/28A wt (lbs) — — — — — 55 77 97 192 310 438 710 900

Cv 2.1 3.5 6.25 9.7 14 20.8 36 46 79.5 114 152 265 412

Table 15-2. GP-18/28, 18A/28A Dimensions and Weights

1/2" 3/4" 11/4" 11/2"85/8 83/4 101/8 105/8 111/8 103/8

21/2"187/8 197/8143/4 281/8231/2

Connection SizeSymbol

L (in)H (in)H1 (in)

GP-100, GP-31A wt (lbs)

Cv

57/8

—1.5

—2.3

1"

17—4

—6.5

—9

2"

384316

4—5325

3"

—

36

4"

—

64

Table 15-1. GP-100, GP-32, GP-31A/32A Dimensions and Weights

75

13

116

1/2" 3/4"61/881/481/4

21/2 21/2131/2131/2

31/4253/4

913/16

71/265/16

87/825/8

11/4" 11/2"

31/4253/4

913/16

71/221/2"

1011/16

811/16

311/16 413/16

111/2 131/295/8 113/8

153/859/16

GP-32/32A wt (lbs)

For Steam, Air, and Non-Corrosive Gases

GP-100, GP-32, GP-18/28, GP-1

NOTE: GP-100 is 1/2"-2" NPT, GP-32 is 2"-4" ANSI 125 lb flanged. For sizes 5" to 8" consult factory.

NOTE: 3/4"-2" are flanged and supplied with NPT companion flanges, gasket and bolts—not shown. “L” dimensions include the companion flanges.GP-1 2" and larger are ANSI 300 lb flanged.

* GP-1 2" flanged face to face 101/4"

All dimensions and weights are approximate. Use certified print for exact dimensions.

Internally Piloted

GP-28, GP-1GP-32GP-100, GP-31A

NOTE: GP-18, 1/2"-2" are flanged and supplied with NPT companion flanges, gasket and bolts—not shown. “L” dimensions include the companion flanges.GP-28 is ANSI 250 lb flanged.

* GP-28 2" flanged face to face 91/2"

H

L

H1

H

L

H1

H

H1

L

16

Connection 3/4" 1" 11/4" 2" 3" 4"

Factor .714 .657 .640 .670 .643 .769 .694 .783 .805

Table 16-2. GP-100, GP-32 Capacity Factors1/2" 11/2" 21/2"

Connection Size

1" 11/4" 11/2" 2" 21/2" 3" 4" 5" 6" 8"†† 10"††

125

124

161

126

166

196

152

197

232

219

283

322

285

364

412

352

453

502

418

521

591

484

589

681

550

657

771

617

807

861

791

877

947

951

1,090

1,154

1,130

208

207

268

209

276

327

254

329

387

365

472

537

476

606

687

586

755

836

697

869

986

807

982

1,135

917

1,094

1,285

1,028

1,346

1,435

1,318

1,462

1,579

1,584

1,817

1,924

1,883

5-10

20

5-15

30

25

5-20

40

32

5-25

60

48

8-37

80

65

10-50

100

80

13-62

120

100

15-75

140

120

18-87

160

140

20-100

180

140

23-112

180

160

140

25-125

180

160

30-150

371

370

478

374

494

585

454

588

691

652

842

959

849

1,083

1,226

1,047

1,349

1,493

1,244

1,551

1,769

1,441

1,753

2,027

1,638

1,954

2,295

1,835

2,403

2,562

2,354

2,610

2,819

2,829

3,245

3,436

3,360

576

574

741

580

766

907

704

912

1,073

1,012

1,307

1,488

1,318

1,680

1,903

1,624

2,092

2,317

1,931

2,408

2,732

2,236

2,721

3,147

2,542

3,033

3,561

2,848

3,730

3,976

3,653

4,051

4,375

4,391

5,036

5,332

5,220

831

828

1,070

837

1,106

1,310

1,016

1,316

1,549

1,460

1,886

2,148

1,903

2,425

2,746

2,345

3,019

3,344

2,786

3,475

3,943

3,228

3,927

4,541

3,669

4,377

5,140

4,111

5,383

5,738

5,272

5,847

6,315

6,337

7,269

7,696

7,535

1,234

1,231

1,590

1,244

1,644

1,946

1,509

1,956

2,301

2,169

2,802

3,191

2,827

3,603

4,080

3,483

4,486

4,969

4,140

5,163

5,858

4,796

5,835

6,747

5,451

6,503

7,636

6,107

7,998

8,526

7,833

8,686

9,382

9,415

10,799

11,433

11,193

2,136

2,130

2,752

2,153

2,845

3,367

2,612

3,383

3,983

3,754

4,849

5,522

4,892

6,236

7,061

6,029

7,764

8,600

7,165

8,936

10,139

8,300

10,098

11,678

9,435

11,255

13,217

10,570

13,842

14,756

13,557

15,034

16,238

16,295

18,691

19,789

19,373

2,730

2,721

3,516

2,751

3,635

4,303

3,338

4,325

5,089

4,797

6,196

7,056

6,251

7,968

9,022

7,704

9,921

10,989

9,155

11,418

12,955

10,606

12,903

14,922

12,056

14,381

16,888

13,506

17,687

18,855

17,323

19,210

20,749

20,821

23,883

25,286

24,754

4,717

4,704

6,077

4,755

6,282

7,436

5,769

7,475

8,796

8,290

10,709

12,195

10,804

13,771

15,593

13,314

17,146

18,992

15,822

19,733

22,390

18,330

22,300

25,789

20,836

24,855

29,187

23,342

30,568

32,586

29,939

33,200

35,859

35,985

41,277

43,700

42,782

6,764

6,745

8,714

6,818

9,008

10,663

8,272

10,719

12,613

11,888

15,356

17,487

15,493

19,747

22,360

19,092

24,587

27,233

22,689

28,296

32,107

26,284

31,978

36,980

29,878

35,641

41,854

33,472

43,833

46,727

42,931

47,608

51,420

51,601

59,189

62,664

61,348

9,019

8,994

11,618

9,091

12,011

14,218

11,030

14,293

16,817

15,851

20,474

23,315

20,657

26,329

29,813

25,456

32,783

36,311

30,252

37,728

42,809

42,637

49,307

55,805

62,303

68,801

78,919

83,552

81,797

15,724

15,680

20,256

15,850

20,940

24,787

19,229

24,918

29,319

27,634

35,696

40,648

36,014

45,903

51,976

44,381

57,154

63,305

52,741

65,775

74,634

74,334

85,963

97,291

108,620

119,945

—

—

—

24,447

24,378

31,492

24,642

32,556

38,537

29,896

38,740

45,582

42,963

55,496

63,197

80,808

98,421

116,034

133,647

151,260

168,873

186,496

—

—

—

*GP-100, GP-32 to be used up to 150 psig inlet maximum.**GP-18/28 to be used up to 250 psig inlet maximum.†GP-1 only to be used up to 300 psig inlet maximum.††GP-1 not available in these sizes.

20

30

40

50

75

100

125

150*

175

200

225

250**

300†

Outlet(psig)

Inlet(psig) 1/2" 3/4"

Table 16-1. GP-18/28/1 Capacities—Steam (lbs/hr)

———

—

—

——

—

—

—

—

—

—

——

———

—

—

—

—

——

——

—

—

———

Capacities for Steam, Air, and Non-Corrosive Gas

GP-100, GP-32, GP-18/28, GP-1NOTES: For GP-100, GP-32 capacities, multiply Table 16-1 values by factor listed in Table 16-2.

For GP-31A/32A air capacities (SCFM), multiply steam capacities for GP-31/32 by 0.36.For GP-18A/28A/1A air capacities (SCFM), multiply steam capacities by 0.36.

17

Interchangeable springs—regardless of valve size—means more flexibility in applications.

Available in both integral and remote

mounted pilot.

Enclosed spring chamber eliminates dirt fouling.

Dual stainless steel diaphragms provide corrosion resistance.

All cast mating parts are male and female to reduce the chance of leaks at gasket surfaces and assure proper alignment.

Ductile iron body provides a wider range of applications than cast iron and offers a less costly option to cast steel.

Integral strainer protects the pilot valve from failure due to dirt.

Easily removable copper tubing permits troubleshooting while

valve is in line.

Easy access to main valve for quick inspection

or maintenance by removing main valve

spring and screen and lifting valve from stem. No

special tools needed.

Design eliminates copper tubing from passing around

the bottom diaphragm housing, minimizing

chance of damage during shipping or installation.

For Steam Service

Externally Piloted

This type is similar to the internallypiloted piston-operated valve in thata pilot and main valve are utilized.However, double diaphragmsreplace the piston. This increaseddiaphragm area can open a largermain valve, allowing a greater

capacity per line size than theinternally piloted piston-operatedvalve. In addition, the diaphragmsare more sensitive to pressurechanges which results in accuracyof +1%. This greater accuracy is dueto the positioning of the sensing line

downstream where there is lessturbulence. This valve also offersthe flexibility to use different typesof pilot valves (i.e., pressure, tem-perature, air loaded, solenoidor combination).

18

65/16

L (in) Weight (lbs)Size(in) NPT 150# 300#

A(in)

H1(in)

F(in) NPT 150# 300# Cv

— — — — 5.03/4" — — — — 7.21" — — — — 10.9

11/4" 71/8 — — 51 — — 14.3— — — — 18.8

2" 75 81 84 32— — 142 150 60

3" — — 155 166 784" — — 247 264 120

Table 18-2. GP-2000 Dimensions and Weights

71/8

*6"

515/16

91/8

— 19

HIntegral

(in)

—

HRemote

(in)

16

28 16

44

51

— 510 550 223

H2(in)

10

3434

1/2"

11/2"

21/2"

515/16

85/81015/16

113/4131/2181/2

91/8111/2127/16

141/8

815/16

815/16

815/16

1015/16

1313/16

1313/16

1513/16

193/4

715/16

715/16

615/16

615/16

71/871/871/8

171/8171/8

1515/16

153/4153/4

73/485/16

83/4213/4195/8

225/82515/1697/16

111/8

141/4141/4147/16

151/8151/8

175/16

175/16

201/8

615/16

75/8

63/463/4

75/8

913/16

81/2

107/16

125/8

95/895/8

111/8111/8

125/8143/4153/4191/4

311/2

**15-300300 lb. Flg.

Application Body Diaphragm

Steam

* 1.5-3

3-21

15-200

450 7

MATERIALSMaximumTemperature

(˚F)

InletPressure

(psig)

ReducedPressure

(psig)

MinimumDifferential

(psig)Main

Valve/Seat

DarkGray

NPT15-300

**15-185150 lb. Flg.

Stainless SteelAISI 420

Color

DuctileIron

ASTMA536

Stainless SteelAISI 301

PilotValve/Seat

SpringColor

Yellow

Yellow

Green

Table 18-1. GP-2000 Specifications

GP-2000For Steam Service

The GP-2000 is a high performance,externally piloted reducing valvefor large capacity requirements.Typical use is on intermittent service,including applications such as heatexchangers, steam coils, rotatingdryers, process equipment andheating systems.

With a 20:1 rangeability and high Cv,the GP-2000 is reliable and accurate(+ 1% of pressure set point from 5%to 100% of flow) over a long, trouble-free service life. Hardened stainless

steel working parts are renewablein-line. Single seated for dead-endservice. Available with both NPT andflanged connections in 1/2" through6" sizes.

All dimensions and weights are approximate. Use certified print for exact dimensions.

*6" valve standard in remote mount with 125 or 250 lb. ANSI flanges. For Capacities, see page 26

* 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.**6" valve standard in remote mount with 125 or 250 lb. ANSI flanges and cast iron body.

GP-2000

F

3.2(82)

1/4 NPT

H1

H

A

H2

H1

H

L

A

F

3.2(82)

2.52(64)

1/4 NPT

H1

H

A

H2

H1

H

L

A

19

Connection Size1"

87/8

51

10.9

3/4"

77/8

39

7.2

1/2"

77/8

55/8

161/4

39

5.0

Table 19-2. GP-11S Dimensions and Weights

Symbol

A (in)H1 (in)

H (in)

Wt (lbs)Cv

11/4"

87/8

56

14.3

2"

107/8

85

32.0

11/2"

87/8

56

18.8

55/8 57/8 61/2 61/2 71/2

161/4 165/8 173/4 173/4 201/4

Face-to-Face 6 6 61/4 7 7 9

ApplicationBody Valve/Seat

StainlessSteelAISI420

15-425 7 500

CarbonSteelGradeWCB

Steam

1.5-33-30

20-10080-248

StainlessSteelAISI420

MATERIALS

Table 19-1. GP-11S Specifications

MaximumTemperature

(°F)

InletPressure

(psig)

ReducedPressure

(psig)

MinimumDifferential

(psig) Diaphragm Color

Black

StainlessSteelAISI301

PilotValve/Seat

Externally PilotedGP-11S Carbon Steel Body

For Steam Service

The GP-11S is a high-performance,externally piloted reducing valve forlarger capacity requirements. Appli-cations include heat exchangers,steam coils, rotating dryers, processequipment and heating systems.

All working parts of the GP-11Sare renewable in-line. It also hashardened stainless steel workingparts, double stainless steeldiaphragms and a single-seatedmain valve for dead-end service.

NOTE: Remote mount pilot available upon request. Air-loaded pilots also available.

NOTE: 1/2" Thru 2" standard is integral mount.

For Capacities, see page 26

H

H1

A

GP-11S

All dimensions and weights are approximate. Use certified print for exact dimensions.

20

Face-to-Face (in) “L” †Weight (lbs)Size

NPT 150# 300#H1(in)(in)

**A2(in) NPT 150# 300# Cv

*For GP-2000K-2, add 11/4" to “H” dimension.**For GP-2000K-2, A2 dimension = 63/4".†For GP-2000K-2 weight, add 6 lbs.

— — 5 34 — — 5.0

— — 34 — — 7.2

1" — — 44 — — 10.9

11/4" — — 51 — — 14.3

11/2" — — 51 — — 18.8

2" 75 81 84 32

21/2" — 111/2 — 142 150 60

3" — — 155 166 78

4" — — 247 264 120

5

5

5

5

5

5

5

5

13

Table 20-2. GP-2000K-1/GP-2000K-2 Dimensions and WeightsH

Remote(in)

*HIntegral

(in)A1(in)

F

1/2"3/4"

515/16

515/16

65/16

71/871/8

91/8 91/885/8

1015/16

1015/16

1313/16

1313/16113/4 127/16

815/16

815/16

815/16

715/16

715/16

141/8131/2 1513/16

67/8

67/8

77/8

77/877/8

77/8

87/8

87/897/8

125/8

125/8

131/8131/8

165/8

191/4

201/8235/8

111/4

111/4

113/16

117/8117/8

123/4

141/16

1411/16

167/8

63/4

63/4

615/16

75/875/8

81/2

913/16

107/16

125/8

MATERIALSApplication

Body Diaphragm

Steam 450 7

MaximumTemperature

(˚F)

InletPressure

(psig)

ReducedPressure

(psig)

MinimumDifferential

(psig)

DuctileIron

ASTMA536

Stainless SteelAISI 420

StainlessSteelAISI301

DarkGray

PilotValve/Seat

MainValve/Seat

NPT15-300

*150 lb Flg15-185

*300 lb Flg15-300

K-215-200

K-17-125

Table 20-1. GP-2000K-1/GP-2000K-2 Specifications

Color

GP-2000K-1/GP-2000K-2Air Loaded Valves for Steam

A high performance externally airpiloted pressure reducing valve,the GP-2000K-1/GP-2000K-2 isan ideal choice when set pointchanges are frequent and accessto the PRV is difficult. The valve

comes totally assembled andrequires no field installation exceptdownstream sensing line and airline connection. High Cv, 20:1turndown ratio and accuratecontrol + 1% of pressure set point

from 5% to 100% of flow. A ruggedductile iron body, hardened stainlesssteel working parts, doublestainless steel diaphragms and in-line repairability add up to reliabilityon the job. Single seated fordead-end service.

All dimensions and weights are approximate. Use certified print for exact dimensions.

*NOTE: 6" valve standard in remote mount with 125 or 250 lb. ANSI flanges and cast iron body. Consult factory.For Capacities, see page 26

H1

H

L

A2

A1

F

A1

H1

H

H1

H

A1

L

A2

GP-2000K-1 GP-2000K-21:1 Air to Steam Ratio 1:2 Air to Steam Ratio

A1

F

21

300 lb. Flg.15-300

Application Body Diaphragm

Steam 7-200 450 7

MATERIALSMaximumTemperature

(˚F)

InletPressure

(psig)

ReducedPressure

(psig)

MinimumDifferential

(psig)Main

Valve/Seat

DarkGray

StainlessSteelAISI301

NPT15-300

150 lb. Flg.15-185

Table 21-1. GD-2000K Specifications

Stainless SteelAISI 420

Color

DuctileIron

ASTMA536

Air Loaded Valves for Steam

GD-2000K

flanged connections for quick, easyinstallation. It also comes with adurable ductile iron body andfeatures double stainless steeldiaphragms and hardened stain-

The GD-2000K is an ideal choicewhen set point changes are fre-quent, access to the valve is difficultand steam quality is poor. The GD-2000K comes with either NPT or

less working parts, renewablein-line. High C

v and 10:1 turn-

down ratio. Single seated fordead-end service.

All dimensions and weights are approximate. Use certified print for exact dimensions.

For Capacities, see page 26Face-to-Face (in) Weight (lbs)

Size NPT 150# 300#

H1(in)

H(in)

A(in) NPT 150# 300# Cv

57/8 — — 27/8 95/8 77/8 27 — — 5.0

3/4" — — 27 — — 7.2

1" 61/4 — — 35 — — 10.9

11/4" 71/8 — —

10

43 — — 14.3

71/8 — — 43 — — 18.8

2" 9 91/8 41/4 125/8 107/8 66 72 73 32.0

— 107/8 43/4 143/4 137/8 — 135 136 60.0

3" — 113/4 153/4 — 146 152 78.0

4" — 141/8 157/8 — 230 240 120.0

27/8

87/8

87/8

87/8

77/8

137/8

Table 21-2. GD-2000K Dimensions and Weights

57/8

31/16

95/8

111/8

111/8

191/

1/2"

11/2"

21/2"

131/2

81/2

111/2

121/2 51/2

61/2

31/2

31/2

GD-2000K

A

H1

H

22

Air Loading Charts

200

180

160

140

120

100

80

60

40

20

0 20 40 60 80 100 120 140

GP – 2000

K – 1

GP–2

000K

–2

AIR LOADING PSIG

STE

AM

OU

TLE

T P

SIG

Chart 22-1. GP-2000K 1 & 2

Chart 22-2. GD-2000K

How to Use Chart 22-1Enter the graph at the outlet pressure from thevalue on the vertical axis.Move horizontally to the right until the air loadinglines are intersected.Then read vertically below the point of intersectionfor the air loading pressure required.

Selection Example (Chart 22-2)Using 1^" GD-2000KSteam Inlet Pressure P1 200 psigSteam Outlet Pressure P2 75 psigDifferential Pressure ∆P 125 psig

Read horizontally across the bottom of the chartto the 125 psig ∆P line.

Read vertically up to the diagonal line thatcorresponds to a 1^" GD-2000K.

Read horizontally to the left for additional airsignal required.

Outlet Pressure P2 75 psigAdditional Air ∆P Air 12 psigTotal Air Pressure Required 87 psig

35

30

25

20

15

10

5

020 40 60 80 120100 140 160 200180 220 240 260

DIFFERENTIAL STEAM PRESSURE P

AD

DIT

ION

AL

AIR

RE

QU

IRE

D

4"

2"

3"

1"

1/2"

3/4"

21/2"11/4"

11/2"

23

Control Panels & Air Loaders

Panel is of rigid lightweightanodized aluminum for easyhandling and installation.Control panel comes fullyassembled with gauges suitedto applications. Panel mateand panel mate filter arestandard on panels and arealso available separately.

Armstrong Control Panels and AirLoaders are designed to providethe necessary air loading signal tocontrol any air-operated pressurereducing valve. While designedspecifically to control Armstrongpressure reducing valves such asthe GP-2000K1 & 2, GD-2000K,GP-100, GP-33 and GP-34, thesepanels can remotely control otherair-loaded valves.

GaugeSTANDARD PRESSURE GAUGE RANGES

Table 23-1. Specifications—Control Panel

Panel “A” Panel “Y”“A” psig (bar)

“B” psig (bar)

“C” psig (bar)

0-100 (0-7) —

0-100 (0-7)

0-200 (0-14)

0-100 (0-7)

0-200 (0-14)

Optional: Gauge “A” Ranges - psig (bar) 0-30, 0-100, 0-300(0-2, 0-7, 0-20.5)

—

Optional: Gauge “B” and “C” Ranges - psig (bar) 0-30, 0-60, 0-100, 0-150, 0-200, 0-300(0-2, 0-4, 0-7, 0-10.5, 0-14, 0-20.5)

Maximum Inlet Air Pressure - psig (bar)

Maximum Outlet Air Pressure - psig (bar)

200 (14)

150 (10.5)

Name of PartTable 23-2. Materials of Construction—Panel Mate—Filter

Body

Bottom plug

Pilot diaphragm

Main diaphragm

Pilot valve

Main valve

Main valve seat

Bowl

Element

Elastomers

Panel Mate FilterZinc

Brass

Nitrile

Nitrile

Stainless steel

Polycarbonate

Teflon

—

—

Nitrile, neoprene andpolyurethane

—

—

—

—

—

—

Zinc

Porous polypropylene

Nitrile andneoprene

NOTE: Panel material is anodized aluminum.

*NOTE: Use an Armstrong AF-10, 5 micron air filter upstream of panel mate to prevent fouling.

Air Accessories

1/4 NPT

71/4" (184)

B

A

C

R

AIR LOADING PRESSURE AIR SUPPLY PRESSURE

CONTROL

PANEL

PANEL

ARMSTRONGSTEAM / AIR / LIQUID PRODUCTS

Three Rivers , Michigan 49093

(292)111/2"

61/2" (165)

Maximum Panel

Thickness: 0.094 (2.4)

Panel Mounting Hole

0.47 (12) Diameter

21/8" (54)

(116)

(64)

(13)

41/2"

21/2"

1/2"

1/4" NPT (6)

(102)4 "

13/4" (44)

B C

R

AIR LOADING PRESSURE AIR SUPPLY PRESSURE

CONTROL PANEL

ARMSTRONGSTEAM / AIR / LIQUID PRODUCTS

Three Rivers , Michigan 49093

(165)

71/4" (184)

61/2" (165)

61/2"

*Panel MateTable 23-3. Specifications—Panel Mate—Filter

Inlet pressure maximum psig (bar)

Filter

200 (14) 250 (17)

Outlet pressure maximum psig (bar) 150 (10) —

Temperature maximum °F (°C) 160 (71) 175 (79)

24

OBK-2000Pneumatic Temperature Pilot

All dimensions and weights are approximate. Use certified print for exact dimensions.

A compact pneumatic temperaturepilot with broad temperature ranges,the OBK-2000 can be remotelylocated away from the regulatorvalve, an advantage not availablewith a conventional capillary system.

Typical applications include instan-taneous or storage tank waterheaters, air make-up units andmanufacturing process operationssuch as parts washing, die castingand plastic molding.

Capable of reverse or direct-actingoperation, the OBK-2000 featuresa simple design with fewer movingparts for trouble-free operation.Other features include supply andcontrol pressure gauges, a ruggedcast brass housing, and precise andrapid response to temperature

changes. Brass, stainless steelbulbs and separate wells areavailable.

Reverse-Acting Operation—For HeatingDuring operation, a temperaturechange in the medium beingcontrolled creates a changein the length of the sensitivitytube. An increase in tempera-ture lengthens the sensitivitytube (1) and moves the invarrod (2) from the lever (3).The lever pivots at point Band is moved so the exhaustvalve (4) is opened by thespring at (D). This lever actiondecreases the supply air atpoint (S) in the control lineat point (R) and closes theregulator valve. A decrease

in temperature shortens thesensitivity tube at point (1) andmoves the invar rod against thelever point (3). The lever at thispoint moves against the springat point (D) to close the exhaustvalve at point (4). This leveraction increases the pressurein the control line at point (R)and opens the valve.

Table 24-1. OBK-2000 Specifications

Maximum supply pressure (air)@ room temperature - psi (bar)

Air consumption (maximum) - SCIM (cm/s)

Maximum operating pressure - psi (bar)

Maximum operating temperature -°F (°C)

Temperature response -°F (°C)

Mounting - in (mm)

Air connections - in (mm)

Shipping weight - lb (kg)

Sensitivity (adjustable) - psi (bar)

800 (218-3)

250 (17)

400 (204)

0.5 (0.3)1/2 (15)

Dial adjustment range -°F (°C)

Maximum pressure on wellsStainless steel - psi (bar)Copper - psi (bar)

1125 (79)525 (36)

25 (2)

Standard - 50 to 350 (10 to 177)

1/8 (3)

4 (1.8)1/4 to 21/4 (0.02 to 0.16)

The sensitivity adjustment screwat point (6) regulates the rateof flow of the supply air to thecontroller to a change in tem-perature. Turning the screwclockwise increases the sensitiv-ity by reducing the flow andincreasing the response time.Turning the screw counterclock-wise decreases the sensitivityby increasing flow and reducingthe response time. Valvecloses on air failure, makingit fail-safe.

Table 24-2. OBK-2000 Materials

Body

O-rings

Valve

Valve Seat

Brass

Silicone Rubber/Buna “N”

Phos. Bronze

Phos. Bronze

Name of Part Material

Operation Reverse Acting -For Heating

7"178 mm

2-3/8"61 mm

3-5/8"92 mm

2-1/4"57 mm

1-5/8"41 mm

12"304 mm

12-5/8"320 mm

2-7/8"73 mm 1/2"

15 mm

OBK-2000

Positions A and C show pivot point A andspring C when controller is direct acting.

R

D

GP-2000-KRegulator Valve

(Normally Closed)

1

S

6

3

C

A

B

4

2

NOTE: Thermal wells available. 304 stainless steelor brass are standard materials. Other materialsavailable upon request.

25

GP-2000RFor Steam Back Pressure Regulation

The GP-2000R is a high performanceexternally piloted throttling backpressure valve for large capacityapplications. Typical applications

would include those systems utiliz-ing flash steam for low pressureheating or processes. The GP-2000Rvalves will function to maintain a

constant upstream pressure.This valve is not a safety valveand should not be used forthat purpose.

All dimensions and weights are approximate. Use certified print for exact dimensions.

For Capacities, see page 26

Face-to-Face (in) Weight (lbs)Size

NPT 150# 300#H1(in)(in) NPT 150# 300# Cv

*6" valve standard in remote mount with 125 or 250 lb. ANSI flanges.

— — 34 — — 5

— — 34 — — 7.2

1" 615/16 — — 44 — — 10.9

11/4" 71/8 — — 51 — — 14.3

11/2" — — 51 — — 18.8

2" 75 81 84 32

21/2" — 111/2 — 142 150 60

3" — 113/4 127/16 — 155 166 78

4" — 131/2 141/8 — 247 264 120

Table 25-2. GP-2000R Dimensions and WeightsH

Remote(in)

HIntegral

(in)A

(in)1/2" 515/16

*6" — 181/2 19 — 25 16 — 510 550 223

F

3/4" 515/16

71/8

91/8 85/8 91/8

1015/16

1015/16

1313/16

1313/16

1513/16

193/4

815/16

815/16

815/16 71/8

71/8

71/8

73/4

85/16

83/4

111/897/16

715/16

715/16 615/16

615/16

17 3/8

17 3/8

17 3/4

18 7/8

18 7/8

15 3/4

15 3/4

1515/16

165/8165/8

171/2

1813/16

197/16

215/8 125/8

107/16

913/16

81/2

75/875/8

615/16

6 3/4

6 3/4

213/8

23 7/8

23 7/828 3/8

H1

H

L

A

9"

F

1/4 NPT

1/4 NPT

H1

H

A

GP-2000R

H1

H

L

A

F

9"

1/4 NPT

H1

H

A

MATERIALSApplication Body Main

Valve/SeatPilot

Valve/Seat Diaphragm

Steam 450 3

MaximumTemperature

(̊ F)

MinimumDifferential

(psig)

RelievingPressure

(psig)

InletPressure

(psig)

3-30 (Yellow)20-100 (Red)80-200 (Black)

StainlessSteel

AISI 301

NPT3-200

*150 lb Flg3-185

*300 lb Flg3-200

Table 25-1. GP-2000R Specifications

Stainless SteelAISI 420

DuctileIron

ASTMA536

Color

DarkGray

*6" valve standard in remote mount with 125 or 250 lb. ANSI flanges.

26

Capacities for Steam

GP-2000, 2000K-1, 2000K-2, GD-2000K, GP-2000R, GP- 11S

Connection Size1" 2" 3" 4"

NOTE: Maximum pressure reduction ratio 20:1, except for GD-2000K (10:1).

Inlet(psig)

Minimum pressure reduction is 85% of inlet pressure.

Outlet(psig)

4,8266,010

5,2666,1417,521

5,6738,703

6,0529,799

6,7469,482

11,992

7,85311,78714,184

8,95711,31414,05316,377

11,29414,22816,87019,565

14,29018,01421,93425,146

17,72520,09626,98830,627

27,58434,70841,08447,070

31,01036,92443,88752,551

39,01546,52152,21958,032

3,1373,906

3,4233,9924,888

3,6875,657

3,9336,369

4,3356,1637,795

5,1647,6619,220

5,8227,3549,134

10,645

7,3419,248

10,96612,782

9,28911,70914,25716,345

11,52113,06217,54219,908

17,92922,56026,70430,595

20,15724,00128,52634,158

25,35930,23833,94237,721

756941

825962

1,178

8881,363

9481,535

1,0561,4851,878

1,2301,8462,222

1,4031,7722,2012,565

1,7692,2292,6433,030

2,2382,8223,4363,939

2,7763,1484,2284,798

4,3215,4376,4367,374

4,8585,7846,8758,233

6,1127,2888,1819,091

575716

627731896

6761,037

7211,167

8031,1301,429

9351,4041,699

1,0671,3481,6741,951

1,3451,6952,0102,343

1,7022,1462,6132,996

2,1122,3943,2163,649

3,2874,1364,8955,609

3,6954,4005,2296,262

4,6495,5436,2226,915

438545

478557683

515790

549898

612861

1,089

7131,0701,288

8131,0271,2761,487

1,0251,2921,5321,785

1,2981,6361,9922,284

1,6101,8252,4512,782

2,5053,1523,7314,275

2,8163,3533,9864,773

3,5434,2254,7435,271

201250

219255313

236362

252408

281395499

327491591

373471585682

470592702819

595750913

1,047

738837

1,1241,276

1,1491,4461,7111,961

1,2921,5381,8282,189

1,6251,9382,1752,418

1,2871,602

1,4041,6372,005

1,5122,320

1,6132,613

1,7992,5283,197

2,0843,1433,782

2,3883,0173,7474,367

3,0113,7944,4985,244

3,8104,8035,8496,705

4,7265,3597,1968,167

7,3559,255

10,95512,552

8,2699,846

11,70314,013

10,40412,40513,92515,475

298360

316368451

340522

363587

404568719

471707851

537678843982

677853

1,0121,179

8571,0801,3161,508

1,0631,2051,6191,837

1,6552,0822,4652,824

1,8602,2152,6333,153

2,3402,7913,1333,481

83

13103

183-5

233-7

3325

3-12

4230

3-17

514535

3-22

635545

4-30

857560

5-42

10610075

7-55

170150125

10-92

191175150

12-105

200175150

13-117

15

20

25

30

40

50

60

75

100

125

200

225

250

Table 26-1. GP-2000, 2000K-1, 2000K-2, GD-2000K, GP-2000R, GP-11S Capacities—Steam (lbs/hr)

21/2"2,4133,005

2,6333,0703,760

2,8364,351

3,0264,899

3,3734,7415,996

3,9265,8937,092

4,4785,6577,0268,188

5,6477,1148,4359,832

7,1459,007

10,96712,573

8,86210,04813,49415,313

13,79217,35420,54223,535

15,05018,46221,94326,275

19,50723,26026,10929,016

6"

21,15429,78536,108

24,58132,34038,07641,589

13,75019,36023,470

15,97721,02124,74927,033

3,3144,6665,657

3,8515,0665,9656,515

2,5203,5494,302

2,9293,8534,5374,956

1,9212,7053,279

2,2322,9373,4583,777

8811,2411,504

1,0241,3471,5861,732

5,6417,9429,628

6,5548,624

10,15311,090

1,2691,7872,166

1,4741,9402,2842,495

1271008-67

1481251009-80

150

175

10,57714,89218,054

12,29016,17019,03820,794

9,98410,84811,63412,526

13,91614,54815,102

7,4378,2518,8499,528

10,58511,066

11,487

5,7886,2896,7457,262

8,0688,4358,756

2,6552,8853,0943,331

3,7013,8694,016

16,99818,46419,80421,321

23,68724,76325,706

3,8244,1544,4554,797

5,3295,5725,783

248225200

18-160

248225

22-195

350

425

200

15015-142

300 1752,4162,5702,8162,863

4,0554,123

3,4793,797

6,1386,243

5,2675,748

8,0528,190

6,9107,540

9,0849,913

10,58710,767

15,46216,87418,02018,328

28,99131,63833,78834,365

37,68841,13043,92544,674

57,982

67,57668,730

63,276

——

——

——

——

——

——

——

——

——

——

———

———

———

———G

P-1

1S O

NLY

11/2"11/4"3/4"1/2"

Upo

n ap

plic

atio

n on

ly —

con

sult

fact

ory

27

GP-2000 ON/OFF - For Steam ServiceExternally Piloted

The GP-2000 On/Off option allows forremote shutoff of pressure reducingvalves. Automatic shutoff duringpower failures and shutoff based onset points of pressure, temperatureor liquid levels of process fluids.

This option is available as anaccessory item or may be factoryinstalled on any of the GP-2000series valves. The GP-2000 On/Offis designed for a maximum pres-sure of 150 psig and a maximum

External Pilot Solenoid Operated Valves

temperature of 366°F NEMAIV standard, coil: class H 110vstandard. Available in normallyopen or normally closedconfigurations.

GP-2000, GP-11S, GP-2000R

GP-2000K 1&2

GP-2000 Remote Mount

28

Temperature RegulatorsFor Steam, Water, and Non-Corrosive Liquid Service

Armstrong self-actuated externallypiloted temperature regulators arecompact, high performance unitsthat are simple in design and

operation—and suitable for a widevariety of applications. Featuresincluding flexible mounting positionsof the sensor, interchangeable

capillaries and varied temperatureranges make installation, adjust-ment and maintenance quick andeasy.

Color coded handles(red for heating andblue for cooling) makefor easy identification inthe field.

Easy no-toolstemperature adjustmentwith a simple turn ofthe handle.

Cast bronze bodypermits liquid serviceto 250 psi and steamservice to 150 psi.

Main valve seat materialsare stainless steel andTeflon® for high durabilityand positive sealing.

Quick installation andremoval of sensor frommain body means easytemperature rangechanges.

Sensor temperatureendurance—+72°F of the

maximum value of thetemperature regulation

range. Gas-charged capillary eliminates chance

of cappilary charge mixingwith process in case of

breakage. Sensor can bemounted in any position.

Sensors are standard forboth heating and cooling

for all sizes (1/2"-1").Standard capillary units

for heating or cooling areaccurate to within±7°F.

A single valve withbellows and balancing

mechanism ensuresstable regulation. Notaffected by pressure

fluctuation.

Braided stainless steelcapillary protectsagainst crimping.

29

Temperature Regulators

For Steam, Air, and Non-Corrosive Liquids

L

H

01234

K

L

R

1

H

H

T

Armstrong’s OB-30/31 is a directacting temperature regulator whichrequires no external source foroperation. Simple and compact, theunit is suitable for a wide variety ofheating/cooling applications.

Installing, adjusting or maintainingthe OB-30/31 is quick and easybecause interchangeable capillariesmount in any position and dis-connect by simply loosening theunion nut. No stem packing so

there’s no leakage. Singlecomposition seat for tight shutoff.The OB-30/31 comes in 1/2", 3/4"or 1" sizes and is available with achoice of five temperature rangesand three capillary lengths.

* Standard length.NOTES: Capillary can withstand a maximum of 72°F above rated range.

* Other materials available upon request.

All dimensions and weights are approximate. Use certified print for exact dimensions.

Model Application Service MaximumDiff. (psig)

TemperatureRanges (°F)

MaximumTemp. (°F)

TemperatureAccuracy

OB-30 Heating

140 365

OB-31 Cooling Liquid250

Max. InletPressure (psig)

CapillaryLengths (ft)

Steam150 *61/2

93/4161/2

+7°FFrom

Set Point

Steam

Water,Non-Corrosive

Liquids

32 - 9577 - 158104 - 212140 - 266158 - 302

Table 29-1. OB-30/31 Specifications

OB-30/31

If desired set temperature is in temperature range overlap, select lower range.

SizeL

(in)H1(in)

H(in)

T(in)

K(in)

R(in)

Weight(lbs) Cv

3 51/8 3/8 8 6 3.73/4" 31/8 6 4.6

1" 5.851/851/8

3/83/8

88

Table 29-3. OB-30/31 Dimensions and Weights

31/2

121/2121/2121/2

1/21/21/2 61/2

1/2"

BodyMaterial

Seat Type& Material

ValveMaterial

CapillaryMaterial

BulbMaterial

Thermal WellMaterial

Teflon304 Stainless Steel

Armor Shielded CapillarySingle Seat

304 Stainless SteelBronze

ASTM B584*304 StainlessSteel or Brass

Copper-NickelPlated

Table 29-2. OB 30/31 Materials

30

OB-30/31For Steam, Air, and Non-Corrosive Liquids

OB-30/31, OBK-2000 and OB-2000/2000PT Thermal Well

Standard Material: 304 Stainless Steel or Brass. Other materials available upon request.NOTE: When inserting sensor into thermal well, for best results, it is recommendedthat heat transfer medium be applied to sensor before installation.

Temperature Regulator Selection ExampleParameters:

Fluid SteamMaximum inlet pressure 100 psiOutlet pressure 90 psiMaximum flow rate 500 lbs/hrTemperature required 150°FDistance from regulator to sensing point 5 feet

To Locate Proper Model:Enter inlet column (Table 30-1) at 100 psiMove to outlet pressure of 90 psiLocate capacity of 570 lbs/hr under 1" connection sizeFind capillary temp. range (Table 30-3) 77-158°FSelect capillary length (Table 29-1) 61/2 feet

Application Will Require:OB-30, 1" with 77-158°F Temp. Range,Capillary Length 61/2 Feet

A B

F

E

C

G

D

H

All dimensions and weights are approximate. Use certified print for exact dimensions.

1/2"3.7

3/4"4.6

1"5.8CV Factors 3.7 4.6 5.8

1/2" 3/4" 1"

60

70

80

90

100

125

150

105127159118

164

196

241

158

218

259

314

218

296

347

367

234

320

378

420

250

406

473

384

515

579

420

569

685

8310012694

130

155

191

125

172

205

249

173

235

275

290

186

254

300

333

198

322

375

304

408

459

333

451

543

6781

10175

104

125

154

101

139

165

200

139

181

221

234

149

204

241

268

159

258

302

244

328

369

268

383

437

320

8

6

4

0

12

9

6

0-5

15

10

5

0-2

20

15

10

0-5

25

15

0-7

30

20

0-12

40

30

0-17

5040

0-22605040

0-27706050

0-3280706050

0-3790807060

0-421101008070

0-55130120100

5

10

15

20

25

30

40

50

CV Factors290395504310

424502572329452537640346478570639707363502600676776489619798863944611736918

1,113

360491627385

328624711409562668795431694708795879452625747840963608770992

1,0731,174

759915

1,1411,384

454619791486665787897616708842

1,003543749893

1,0021,109

570788942

1,0601,215

767971

1,2501,3531,480

9581,1541,4391,745

Connection SizesConnection SizesInlet(psig)

Outlet(psig)

Inlet(psig)

Outlet(psig)

Table 30-1. OB-30 Capacities—Steam (lbs/hr)

0-63NOTE: Where it is not possible to calculate pressure drop, 35%-40% of gaugesupply pressure can be used as a reasonable approximation.

Temperature Ranges ˚F32 - 95

77 - 158104 - 212140 - 266158 - 302

Table 30-3.Capillary Temp. Ranges

NOTE: If desired set temperature isin temperature range overlap, selectlower range.

∆P(psig) 1/2" 3/4" 1"

5 8.1 10.1 12.310 11.9 14.3 18.515 14.3 17.6 22.020 16.7 20.7 26.425 18.5 22.0 28.230 20.3 25.6 31.750 26.4 33.5 41.475 32.6 39.6 49.3100 37.9 46.2 57.2125 42.2 52.0 65.6150 46.3 57.25 70.5

Table 30-2.OB-30/31 Capacities-Water (GPM)

Model

OB-30/31

OB-2000/2000PT

G(in)

1/2

3/4

E(in)

.765

.89

D(in)

1/4

1/4

7

73/4

C(in)

1

3/4

B(in)

3/4

1

A(in)

Table 30-4. Thermal Well DimensionsF

(in)

3/4

1

H(in)

.380

.630

1/2

OBK-2000 .7651/43/41 .515121/2 1/23/4

31

*Standard length.

+2˚F FromSet Point

ApplicationInlet

Pressure(psig)

MinimumDifferential

Pressure (psig)TemperatureRanges (˚F)

TemperatureAccuracy

CapillaryLengths (ft)

Steam

NPT10-300

* 61/2 9 1/21 61/2

150 lb Flg10 - 185 7

300 lb Flg10 - 300

Table 31-1. OB-2000 Specifications

18 - 5950 - 97

86 - 144131 - 201176 - 260239 - 361

Temperature Regulators

OB-2000For Steam

Armstrong’s OB-2000 is a highperformance externally pilotedtemperature regulator for largecapacity applications such as heatexchangers, steam coils, steamdryers, plating tanks and parts

washers. Self-actuated and requir-ing no external energy source, theOB-2000 comes with pilot valveand tubing pre-assembled. Capil-lary units mount in any position andcan be easily disconnected and

interchanged, offering easyinstallation and maximum appli-cation flexibility. Available insizes 1/2" through 4" with sixtemperature ranges and threecapillary lengths.

All dimensions and weights are approximate. Use certified print for exact dimensions.

Face-to-Face (in) Weight (lbs)Size NPT 150# 300#

H1(in)

H2(in)

A(in)

F(in)

G(in) NPT 150# 300# Cv

57/8 — — 63/4 215/16 77/8 65/8 83/4 31 — — 5.03/4" — — 215/16 83/4 31 — — 7.21" 61/4 — — 7 31/16 87/8 67/8 87/8 39 — — 10.9

11/4" 71/8 — — 75/8 39/16 87/8 47 — — 14.3— — 71/8 91/4 47 — — 18.8

2" 9 91/8 85/8 41/16 107/8 71/16 71 77 78 32— 107/8 47/8 81/8 101/8 — 138 140 60

3" — 113/4 53/8 137/8 89/16 105/8 — 149 155 784" — 141/8 135/8 69/16 157/8 91/4 111/4 — 234 243 120

77/8 65/8

91/439/16 87/8

107/8

71/8

Table 31-2. OB-2000 Dimensions and Weights

57/8

71/8

63/4

75/8

111/8

11/2"

21/2"81/2

131/2

111/2121/2

101/291/2

1/2"

NOTE: For 6" consult factory.

OB-2000

G

H2

F

A

H1

3/4 NPT

124 "

124 "

122 "

1210 "5 8"

NOTE: If desired set temperature is in temperature range overlap, select lower range.

32

OB-2000For Steam

* Standard. Other material available upon request. See page 30 (Table 30-4) for dimensional information.NOTE: Capillary can withstand a maximum of 36°F above rated range.

Parameters:Fluid SteamMaximum inlet pressure 100 psiOutlet pressure 75 psiMaximum flow rate 1500 lbs/hrTemperature required 180°FDistance from regulator to sensing point 5 feet

To Locate Proper Model:Enter inlet column (Table 34-1) at 100 psiMove to outlet pressure of 75 psiLocate capacity of 1500 lbs/hr under 1" connection sizeFind capillary temp. range (Table 32-1) 131-201°FSelect capillary length (Table 31-1) 61/2 feet

Application Will Require:OB-2000, 1" with 131-201°F Temp. Range,Capillary Length 61/2 Feet

Temperature Regulator Selection Example

CapillaryMaterial

CapillaryTemperatureRanges (˚F)

BulbMaterial

BulbConnection

Thermal WellMaterial

Thermal WellConnection

Copper CapillaryTube With

304 Stainless SteelArmor Shield

3/4" NPT 1" NPTNickel PlatedCopper Bulb

18 - 5950 - 9786 - 144

131 - 201176 - 260239 - 361

* Brass* 304 Stainless Steel

Table 32-1. OB-2000 Sensor and Accessories Specifications

OB-2000 BodyMaterial

Seat Type& Material

ValveMaterial Connection Maximum

Temperature (˚F)

MainValve

450

TemperaturePilot Valve

1/4" NPT

Ductile IronASTM A536 Single Seat

Stainless SteelAISI 420 AISI 420

StainlessSteel

NPT150 lb Flg300 lb Flg

BronzeASTMB584

Table 32-2. OB-2000 Materials

Table 32-3. Valve SizingProper valve selection requires the following information

Steam capacity required for applicationSupply pressure of steamAllowable pressure drop across valve*

* Where it is not possible to calculate pressure drop, 35% - 40% of gaugesupply pressure can be used as a reasonable approximation.

NOTE: If desired set temperature is in temperature range overlap, select lower range.

33

OB-2000PTFor Steam Service

and the temperature of the heatedmedium is controlled using a singleseated main valve. Temperaturepilot and capillary unit disconnect,making repairs or temperature

range changes quick and easy.Available in sizes 1/2" through 4"and with a choice of four springranges, six temperature rangesand three capillary lengths.

Temperature Regulators

All dimensions and weights are approximate. Use certified print for exact dimensions.

The OB-2000PT is a diaphragm-operated externally piloted pressure/temperature combination regulator.It is used in applications wheremaximum pressure should be limited

ApplicationInlet

Pressure(psig)

MinimumDifferential

Pressure (psig)

ReducedPressure (psig)& Spring Color

TemperatureRanges (˚F)

TemperatureAccuracy

CapillaryLengths (ft)

* Standard length.

Steam

1.5 - 3 Silver

± 2˚FFrom

Set Point

*61/291/4150 lb Flg

15 - 1857

86 - 144131 - 201

300 lb Flg15 - 300

176 - 260239 - 361

NPT15-300

18 - 5950 - 97

3 - 30 Yellow

20 - 100 Red

80 - 200 Black161/2

Table 33-1. OB-2000PT Specifications

OB-2000 BodyMaterial Valve & Seat Material

MaximumTemperature (˚F)

Main Valve

TemperaturePilot Valve

450

Pressure Pilot

BronzeASTM B584 AISI 420

StainlessSteel

Ductile IronASTM A536

Ductile IronASTM A536

Table 33-3. OB-2000PT Materials

Face-to-Face (in) Weight (lbs)Size NPT 150# 300#

H(in)

H1(in)

A(in)

G(in) NPT 150# 300# Cv

1/2" 57/8 — — 77/8 47 — —3/4" — — 47 — —

1" 61/4 — — 87/8 7 57 — —

11/4" 71/8 — — 71/4 67 — —11/2" — — 67 — —

2" 9 91/8 107/8 89 94 10021/2" — 107/8 137/8 — 158 167

3" — 113/4 — 171 1834" — 141/8 157/8 — 263 281

173/8 63/4

77/8

87/8

87/8

137/8

71/4

5.0

7.2

10.9

14.3

18.8

32

60

78120

Table 33-4. OB-2000PT Dimensions and Weights

57/8

71/8

237/8

237/8283/8

173/8

173/4

187/8

187/8

63/4

615/16

75/8

75/8

213/8

913/16

107/16

125/8

81/2

131/2

111/2

121/2

61/2

61/2

61/2

61/2

61/261/2

81/2

NOTE: For 6" consult factory.

OB-2000PT

H

G

H1

3/4 NPT

A

1210 "

Table 33-2. OB-2000PT Sensor and Accessories Specifications

CapillaryMaterial

CapillaryTemp. (˚F)

RangesBulb

MaterialBulb

ConnectionThermal Well

Material

ThermalWell

Connection

* Standard. Other material available upon request. See page 30 (Table 30-4) for additional dimensional information.NOTES: Capillary can withstand a maximum of 36˚F above rated range.

Copper CapillaryTube With

304 StainlessSteel

Armor Shield

Nickel PlatedCopper Bulb

3/4" NPT 1" NPT

18 - 5950 - 9786 - 144

131 - 201176 - 260239 - 361

* Brass* 304 Stainless Steel

If desired set temperature is in temperature range overlap, select lower range.

34

OB-2000, OB-2000PTCapacities for Steam Service

* Minimum inlet pressure for OB-2000PT is 15 psi because of the pressure pilot. NOTE: For 6" consult factory.

Connection SizeOutlet(psig) 3/4" 1" 11/2"11/4" 2" 3" 4"

Inlet(psig)

Table 34-1. OB-2000, OB-2000PT Capacities—Steam (lbs/hr)

5,2666,1417,521

5,6738,703

6,0529,799

6,746

9,48211,992

7,85311,787

14,184

8,95711,314

14,053

16,377

11,294

14,228

16,87019,565

14,29018,014

21,93425,146

17,72520,09626,98830,627

21,15429,785

36,108

24,58132,34038,07641,589

27,58434,70841,08447,070

31,01036,92443,88752,551

39,01546,52152,21958,032

3,4233,9924,888

3,6875,657

3,9336,369

4,335

6,1637,795

5,1647,661

9,220

5,8227,354

9,134

10,645

7,341

9,248

10,96612,782

9,28911,709

14,25716,345

11,52113,06217,54219,908

13,75019,360

23,470

15,97721,02124,74927,033

17,92922,56026,70430,595

20,15724,00128,52634,158

25,35930,23833,94237,721

2,6333,0703,760

2,8364,351

3,0264,899

3,373

4,7415,996

3,9265,893

7,092

4,4785,657

7,026

8,188

5,647

7,114

8,4359,832

7,1459,007

10,96712,573

8,86210,04813,49415,313

10,57714,892

18,054

12,29016,17019,03820,794

13,79217,35420,54223,535

15,50518,46221,94326,275

19,50723,26026,10929,016

1,4041,6372,005

1,5122,320

1,6132,613

1,799

2,5283,197

2,0843,143

3,782

2,3883,017

3,747

4,367

3,011

3,794

4,4985,244

3,8104,803

5,8496,705

4,7265,3597,1968,167

5,6417,942

9,628

6,5548,624

10,15311,090

7,3559,255

10,95512,552

8,2699,846

11,70314,013

10,40412,40513,92515,475

825962

1,178

8881,363

9481,535

1,056

1,4851,878

1,2301,846

2,222

1,4031,772

2,201

2,565

1,769

2,229

2,6433,030

2,2382,822

3,4363,939

2,7763,1484,2284,798

3,3144,666

5,657

3,8515,0665,9656,515

4,3215,4376,4367,374

4,8585,7846,8758,233

6,1127,2888,1819,091

627731896

6761,037

7211,167

803

1,1301,429

9351,404

1,699

1,0671,348

1,674

1,951

1,345

1,695

2,0102,343

1,7022,146

2,6132,996

2,1122,3943,2163,649

2,5203,549

4,302

2,9293,8534,5374,956

3,2874,1364,8955,609

3,6954,4005,2296,262

4,6495,5436,2226,915

478557683

515790

549898

612

8611,089

7131,070

1,288

8131,027

1,276

1,487

1,025

1,292

1,5321,785

1,2981,636

1,9922,284

1,6101,8252,4512,782

1,9212,705

3,279

2,2322,9373,4583,777

2,5053,1523,7314,275

2,8163,3533,9864,773

3,5434,2254,7435,271

316368451

340522

363587

404

568719

471707

851

537678

843

982

677

853

1,0121,179

8571,080

1,3161,508

1,0631,2051,6191,837

1,2691,787

2,166

1,4741,9402,2842,495

1,6552,0822,4652,824

1,8602,2152,6333,153

2,3402,7913,1333,481

219255313

236362

252408

281

395499

327491

591

373471

585

682

470

592

702819

595750

9131,047

738837

1,1241,276

8811,241

1,504

1,0241,3471,5861,732

1,1491,4461,7111,961

1,2921,5381,8282,189

1,6251,9382,1752,418

20

25

30

40

50

60

75

100

125

150

175

200

225

250

13100

180-5

230-7

33

250-12

4230

0-17

5145

35

0-22

63

55

450-30

8575

600-42

10610075

0-55

127100

0-67

1481251000-80

1701501250-92

191175150

0-105

200175150

0-117

10* 0-3 211 304 460 604 794 1,351 2,534 3,294 5,068

1/2" 21/2"

57,98263,27667,57668,730

37,68841,13043,92544,674

28,99131,63833,78834,365

15,46216,87418,02018,328

9,0849,913

10,58710,767

6,9107,5408,0528,190

5,2675,7486,1386,243

3,4793,7974,0554,123

2,4162,5702,8162,863

300

200175150

15-142

35

GlobeValve

By-Pass

OB-2000

Minimum of 10 Inlet Pipe Diameters

ArmstrongStrainer

ArmstrongTrap

OptionalVacuumBreaker

T

Hot Water Tank

Cold WaterInlet

Hot WaterOutlet

OB-30, OB-2000, OB-2000PT

Load CalculationsHeating oil with steam

Heating water with steam

Heating air with steam

Jacketed kettles or tanks

GPM4

∆T x 1.1x

GPM2

∆T x 1.1x

CFM900

∆T x 1.1x

lb/hr steam =

lb/hr steam =

lb/hr steam =

lb/hr steam = Gal x SG x Cp x ∆T x 8.3Lat x T

Where:

For Steam Service

GPM = Gallons per minute

∆T = Temperature rise °FCFM = Cubic feet per minute

Cp = Specific heat of liquids (Btu/lb -°F)

T = Time in hours

Lat = Latent heat of steam (Btu/lb)

Gal = Gallons of liquid to be heated

SG = Specific gravity

1.1 = Safety factor

Points to Remember When Installing

Drain condensate at inlet of pressure/temperatureregulator with inverted bucket steam trap.

Protect temperature regulating valve from dirt andscale by installing strainer with 100 mesh screen atinlet of valve.

Install shutoff valves on either side of the regulatingvalve along with a by-pass line for maintenancepurposes.

Install vacuum breaker after the outlet of equipmentand before the steam trap.

Temperature Regulators

Install sensor so it is fully immersed in the fluidbeing heated.

If temperature well is used, apply heat transfermedium to sensor before insertion into well.

Place thermometer into system in close proximityto temperature sensor for accurate valveadjustment.

If possible, do not elevate condensate after steamtrap.

Determine pressure setting before temperaturesetting (OB-2000PT only).

Figure 35-1. Typical Installation—OB-30, OB-2000

36

ArmstrongStrainer

GlobeValve

By-Pass

ArmstrongTrap

GP-2000

GateValve

Minimum of 20 Outlet Pipe Diameters

to First Turn

Control Pipe(Pitch Down)

Minimum 10 InletPipe Diameters

SafetyValve

Minimum of 10 Pipe Diameters

from Last Valve or Fitting

GD-30

GlobeValve

By-Pass

ArmstrongTrap

SafetyValve

ArmstrongStrainer

Application Data—Pressure Reducing Valves

Typical External Pressure Pilot PRV Installation.

Typical Direct Acting PRV Installation

Figure 36-1. Direct Acting Single Stage Reduction

Figure 36-2. External Pressure Pilot Single Stage Reduction

37

ArmstrongStrainer

GlobeValve

By-Pass

ArmstrongTrap

GP-2000

GateValve

Control Pipe(Pitch Down)

ArmstrongStrainer GP-2000

GateValve

Control Pipe(Pitch Down)

ArmstrongTrap

GateValve

GP-2000

GateValve

ArmstrongTrap

GlobeValve

Minimum of 10Pipe Diameters

Minimum of 20 OutletPipe Diameters from PRV #2

Control Pipe(Pitch Down)

Control Pipe(Pitch Down)

Minimum of 10 OutletPipe Diameters from PRV #1

Minimum of 10 OutletPipe Diameters

from Last Valve or Fitting

GP-2000

#1 #2

ArmstrongStrainer

Application Data—Pressure Reducing Valves

Typical External Pressure Pilot Parallel Reduction Station. When seasonal load swings vary widely, two valvesare commonly installed in parallel with the large valve being sized for two-thirds of the total load and the smallvalve handling one-third of the total load. The small valve’s set point is set at a slightly higher pressure than thelarge valve.

Typical External Pressure Pilot Two Stage Reduction. This system is recommended when pressure reductionratio exceeds capabilities of a single valve.

Figure 37-2. External Pressure Pilot One-Third to Two-Third Reduction Station

Figure 37-1. External Pressure Pilot Two Stage Reduction

38

ArmstrongStrainer

GlobeValve

By-Pass

ArmstrongTrap

GP-2000K-1

GateValve

Minimum of 20 OutletPipe Diameters to First Turn

Control Pipe(Pitch Down)

Minimum of 10 Inlet Pipe Diameters

SafetyValve

ArmstrongControl Panel

Minimum of 10Pipe Diameters

From Last Valve or Fitting

Air In

Air Signal

ArmstrongStrainer

GP-2000R

GateValve

Control Pipe(Pitch Down)

Minimum of 10 Pipe Diameters

From Low PressureFlash System

To Vent

Typical Air Loaded External Pilot Reduction Station. Complete with remote located air loading control panel.

Typical External Pilot Back Pressure Installation. Used to maintain a constant upstream pressurein the piping system.

Application Data—Pressure Reducing Valves

Figure 38-1. Air Loaded External Pilot Single Stage Reduction

Figure 38-2. External Back Pressure Pilot Installation

39

W2.1 ∆P (P1 +P2)

Q G (T+460)963 ∆P (P

1 +P

2 )

When P2 ≤ C

V= Q

36.39 (P1 )

P1

2

P1

2*When P2

≤ CV= W

1.71 (P1 )

2. For Gas: P1

2

P1

2

CV Value and Calculations

3. For Liquid:

(GPM) G ∆P

CV=

Sizing Data

Selection Formulas Formula Key

Ordering Information

W = Maximum flow capacity of steam, lbs/hr

P1

= Inlet pressure, psia (psig +14.7)

P2 = Outlet pressure, psia (psig + 14.7)

∆P = Pressure drop (P1—P2) psi

Q = Maximum flow capacity of gas SCFH

G = Specific gravity

T = Fluid temperature °F

GPM = Maximum flow capacity of liquid GPM

CV = Valve flow coefficient

* Formula applies only to piloted valves. With directacting valves at critical flow or sonic flow, capacitiesdiminish with greater differential pressure.

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 delivered pressure—(reduced pressure)9. Flow rate

10. Special conditions (if any)

GP-100, GP-32GP-18, GP-28, GP-1*

GD-10

GD-20

OB-30/OB-31

GD-6/6N

GP-2000 SeriesGD-30 & GD-50GD-24

Connection Size

1/4" 3/8" 1/2" 3/4" 1" 11/2"11/4" 2" 3" 4" 5" 6" 8" 10"Model

1.4 2.6 5.8

412

1.5 1.9 3 4 7 10

5

1.5 2.5

1.5

7.2 10.9

2.3 4 6.5 9 16 25 36 64 100 144

3.7

3.5 6.25

5

4.6 5.8

OB-2000/OB-2000PT

256

2.1

1.3

1.4 1.4

16 10875683628

14.3 18.8 32 60 78 120

9.7 14 20.8 36 46 79.5 114 152 265

7.2 10.9 14.3 18.8 32 60 78 120

21/2"

—

—

—

—

—

—

—

— —

—

—

—

—

—

—

— — — — — —

—

— — — — — — —

— —

—

—

—

—

—

—

—

—

—

—

—

—

—

—

———————

——

——

——

——

—

—

—

Table 39-1. Cv Values for Each Product

†

.5 1.0 1.5.35— — — ————————

GD-10F 1.4 2.61.41.4 — — —————————

5.8 5.8 43

mmin

8 10 15 20 25 32 40 50 65 80 100 125 150 200 250

5.6** 8.5**

When P2 > CV=

1. For Steam:

When P2 > CV=

NOTE: **GD-30 onlyNOTE: *GP-1 only available to 6" † Upon application only – consult factory

Metric Tables

Inlet Outlet Connection Size (mm)(bar) (bar) 15 20 25 40* 50*1.0 .5 22 25 42 90 135

1.4.9 24 28 48 98 150.5 19 25 35 82 1201.6 28 32 51 110 185

2.0 1.0 24 27 46 95 140.2 15 18 27 63 982.2 45 55 85 185 280

2.8 1.4 36 44 72 150 235.3 18 25 35 72 1202.8 59 65 110 245 380

3.4 1.4 45 52 85 185 285.3 22 28 40 88 1353.3 62 70 120 265 408

4.02.8 68 75 131 280 4401.2 41 47 77 170 265.4 25 33 45 100 1504.4 80 93 155 335 530

5.53.7 85 102 160 355 5451.6 55 62 100 222 340.5 27 35 49 105 1655.5 92 110 180 392 615

6.94.5 102 119 198 435 6652.8 90 105 170 380 580.7 31 36 60 135 215

Inlet Outlet Connection Size (mm)(bar) (bar) 15 20 25 40* 50*

6.6 105 125 205 450 690

8.34.8 125 141 235 530 8253.1 109 121 204 445 685.8 50 55 90 210 3208.3 130 151 250 550 845

10.35.9 165 191 320 695 1,0753.8 135 160 270 580 9101.0 60 75 115 255 3859.7 185 220 360 780 1,215

12.48.0 195 230 390 830 1,2854.8 175 195 335 735 1,1351.2 75 85 140 310 4709.7 209 235 395 900 1,390

13.88.0 215 245 410 910 1,4005.5 195 225 375 825 1,2751.4 95 110 175 385 5909.7 220 260 430 935 1,450

15.58.0 225 265 436 940 1,4555.9 210 245 410 900 1,3901.6 115 135 225 490 7609.7 238 275 460 1,010 1,560

17.28.3 250 265 471 1,020 1,5754.8 210 240 405 880 1,3601.7 125 145 240 520 815

Connection Size (mm)Symbol

15 20 25L (mm) 109 109 109H (mm) 206 206 206H1 (mm) 46 46 46Wt (kg) 3.0 3.0 3.2Cv 1.3 1.5 2.5

Connection Size (mm)Symbol

10 15 20 25L (mm) 165 165 185 185H (mm) 237 237 261 261H1 (mm) 57 57 76 76E (mm) 155 155 175 175Wt (kg) 5.5 5.5 8.2 8.2Cv .35 .5 1.0 1.5

∆P Connection Size (mm)(bar) 10 15 20 25

.35 3.0 4.2 8.3 12.9

.7 4.2 6.0 12.1 17.81.0 5.3 7.2 14.8 22.01.7 6.8 9.5 18.9 28.43.5 9.5 13.2 26.9 40.15.2 11.4 16.3 32.9 49.26.9 13.2 18.9 37.9 56.88.6 14.8 21.2 42.4 63.6

10.0 15.9 23.1 45.8 68.9

Connection Size (mm)Symbol

15 20 25 40 50L (mm) 80 85 95 140 150H (mm) 191 191 191 307 307H1 (mm) 47 47 47 77 77Wt (kg) 1.9 1.9 2.0 10.1 10.4Cv 1.3 1.5 2.5 5.6 8.5

Inlet Outlet Connection Size (mm)(bar) (bar) 10 15 20 251.0 .2-.6 8.2 11.3 23.1 34.5

1.4.9 5.4 7.7 15.4 23.1

.2-.7 9.5 13.6 26.8 40.41.2 6.4 9.1 18.6 27.7

1.7 1.0 8.6 12.7 24.9 37.6.2-.8 10.9 15.4 30.8 46.31.6 7.3 10.4 21.3 32.2

2.1 1.4 9.5 13.6 26.8 40.4.2-1 12.2 17.2 34.5 52.22.2 9.5 13.6 27.2 40.8

2.8 1.7 12.7 18.1 35.8 54.0.3-1.4 15.0 21.3 42.6 63.5

Inlet Outlet Connection Size (mm)(bar) (bar) 10 15 20 25

2.8 11.3 16.3 33.1 49.43.4 2.2 15.0 21.3 42.6 64.0

.3-1.7 17.7 24.9 50.3 75.33.3 13.6 19.5 24.9 58.1

4.1 2.8 16.8 24.0 48.5 72.6.4-2.1 20.4 29.0 58.1 87.1

4.1 16.8 23.6 47.2 70.85.2 3.3 21.3 30.4 61.2 91.6

.5-2.6 24.5 34.9 69.4 104.3

6.94.5 27.7 39.5 78.5 117.9

.7-3.4 31.3 44.5 88.9 133.48.6 .9-4.1 38.1 54.0 108.4 162.4

10.3 1-4.1 44.9 64.4 128.4 192.8

Connection Size (mm)Symbol

8 10 15 20 25L (mm) 67 67 67 98 121H (mm) 136 136 136 149 181H1 (mm) 38 38 38 38 60Wt (kg) .7 .7 .7 .9 1.4Cv 1.4 1.4 1.4 2.6 5.8

Connection Size (mm)Symbol

8 10 15 20 25L (mm) 70 70 70 98 121H (mm) 162 162 162 178 289H1 (mm) 146 146 146 162 254Wt (kg) .9 .9 .9 .9 1.4

Connection Size (mm)Symbol

8 10 15 20L (mm) 70 70 70 98H (mm) 238 238 238 276H1 (mm) 146 146 146 162Wt (kg) 1.2 1.2 2.0 2.0Cv 1.4 1.4 1.4 2.6

Table M10-2. GD-10 Dimensions and Weights

Table M9-2. GD-6N Capacities—Steam (kg/hr)

Table M10-3. GD-10F Dimensions and Weights

Table M10-4. AF-10 Dimensions and Weights

Table M9-4. GD-6 Capacities—Water (l/min)

Table M9-3. GD-6N/GD-6 Dimensions and Weights

Table M8-3. GD-50 Dimensions and Weights

Table M7-3. GD-30 Dimensions and Weights

Also available BSPT threads. Consult factory.

Also available BSPT threads. Consult factory.

*Available GD-30 Only NOTE: For air capacities (m3/hr) multiply steam capacities by 1.34. Maximum pressure reduction ratio 10:1.

NOTE: For air capacities (m3/hr) multiply steam capacities by 1.34. Maximum pressure reduction ratio 10:1.

Table M7-2. GD-30 and GD-50 Capacities—Steam (kg/hr)

076 METRIC TABLES 4.0 12/3/98 3:02 PM Page 36

∆P Connection Size (mm)(bar) 15 20 25 32 40 50

.5 11.4 15.1 26.5 34.1 60.6 83.3

.7 18.9 22.7 37.9 49.2 83.3 121.11.0 22.7 26.5 45.4 60.6 102.2 147.61.7 30.3 37.9 56.8 75.7 132.5 189.33.4 41.6 53.0 79.5 106.0 189.3 268.75.2 49.2 64.3 98.4 132.5 230.9 329.36.9 56.8 71.9 113.6 151.4 265.0 378.58.6 64.3 79.5 128.7 170.3 295.2 423.9

10.3 68.1 87.1 140.0 185.5 325.5 465.612.0 75.7 94.6 151.4 200.6 352.0 500.013.8 79.5 102.2 159.0 215.7 375.0 533.7

∆P Connection Size (mm)(bar) 50 65 80 100 125 150

.5 136.3 238.5 306.6 575.3 635.9 916.0

.7 193.0 336.9 431.5 813.8 897.0 1,294.51.0 234.7 412.6 529.9 995.5 1,101.4 1,582.11.4 272.5 473.1 609.4 1,150.6 1,271.8 1,828.21.7 302.8 529.9 681.3 1,286.9 1,419.4 2,043.92.4 359.6 628.3 806.2 1,521.6 1,680.5 2,418.63.4 427.7 749.4 965.2 1,820.6 2,006.1 2,891.75.2 526.1 916.0 1,180.9 2,229.4 2,460.3 3,539.05.7 560.2 976.5 1,256.6 2,373.2 2,615.4 3,769.96.9 605.6 1,059.8 1,362.6 2,573.8 2,838.8 4,087.88.6 677.5 1,184.7 1,521.6 2,876.6 3,171.8 4,568.59.9 722.9 1,268.0 1,627.6 3,077.2 3,395.1 4,890.2

Connection Size (mm)Symbol

15 20 25 32 40 50L (mm) 83 89 102 121 152 184H (mm) 197 216 245 286 343 407H1 (mm) 45 51 64 83 89 115Wt (kg) 1.8 2.4 3.3 4.7 8.2 14.3Cv 1.5 2.0 3.0 4.0 7.0 10.0

Face-to- A H H1 WeightSize Face (mm) (mm) (mm) (mm) Cv (kg)50 195 152 415 81 16 19.265 270 178 550 105 28 40.080 270 191 577 120 36 43.7

100 308 229 637 135 68 70.0125 380 254 839 169 75 144.0150 400 280 908 194 108 173.0

Inlet Outlet Connection Size (mm)(bar) (bar) 8,10,15 20 25*,32,40 501.0 .6 42.5 78.2 176.7 984.3

1.6 42.5 73.1 166.5 1224.02.0 1.4 45.9 86.7 195.4 1448.4

.3-1 68.0 125.7 282.1 1915.92.2 47.6 88.4 197.1 1370.2

2.8 1.7 62.9 115.5 260.0 1936.3.3-1.4 78.2 146.1 326.2 2424.2

2.8 57.8 107.0 239.6 1776.53.4 2.2 74.8 137.6 309.3 2303.5

.3-1.7 91.8 173.3 385.7 2867.94.1 81.6 152.9 343.2 2555.1

5.2 3.3 107.0 198.8 443.5 3299.7.5-2.6 129.1 237.9 533.5 3976.3

5.5 107.0 200.5 448.6 3328.66.9 4.5 137.6 255.0 570.9 4343.2

.7-3.4 164.8 306.0 684.8 5084.7

Inlet Outlet Connection Size (mm)(bar) (bar) 8,10,15 20 25*,32,40 50

8.0 76.5 144.4 322.8 2397.08.6 5.5 171.6 317.8 712.0 5283.6

.9-4.3 200.5 373.8 834.3 6193.18.6 144.4 270.2 604.9 4488.0

10.3 5.9 219.2 406.1 909.1 6745.61-5.2 236.2 440.0 983.8 7301.58.6 214.1 397.6 888.7 6602.8

12.0 6.9 251.5 469.0 1,046.7 7774.11.2-6 273.6 508.1 1,133.4 8534.0

13.88.6 271.9 506.4 1,130.0 8387.8

1.4-6.9 309.3 574.3 1,282.9 9518.317.2 1.7-8.6 380.6 708.6 1,582.0 11908.520.7 2-10.3 453.7 842.8 1,881.0 14159.024.1** 2.7-12 — — — 16408.029.3** 5.2-13.8 — — — 19494.0

Inlet Outlet Connection Size (mm)(bar) (bar) 50 65 80 100 125 150

1.0 .6 481 870 1,118 2,112 2,330 3,356

1.4.9 333 581 748 1,412 1,558 2,243

.1-.7 578 1,016 1,307 2,467 2,722 3,9201.2 396 693 892 1,684 1,859 2,676

1.7 1.0 544 948 1,218 2,301 2,539 3,655.1-.8 673 1,162 1,495 2,824 3,115 4,4841.6 459 805 1,035 1,954 2,155 3,103

2.0 1.4 578 1,013 1,303 2,460 2,715 3,908.2-1.0 749 1,740 2,236 4,224 4,659 6,710

2.2 585 1,025 1,317 2,488 2,744 3,9512.7 1.7 782 1,354 1,740 3,286 3,626 5,220

.3-1.4 913 1,602 2,061 3,893 4,292 6,1822.7 710 1,237 1,591 3,006 3,315 4,773

3.4 2.2 924 1,611 2,070 3,912 4,314 6,212.3-1.7 1,088 1,895 2,435 4,600 5,074 7,307

3.3 834 1,460 1,878 3,546 3,912 5,6334.1 2.7 1,054 1,828 2,352 4,442 4,899 7,055

.4-2.0 1,251 2,189 2,812 5,312 5,859 8,4384.1 1,020 1,786 2,296 4,338 4,785 6,889

5.2 3.3 1,325 2,308 2,965 5,602 6,180 8,899.5-2.5 1,502 2,627 3,378 6,381 7,036 10,464

6.2 963 1,686 2,166 4,092 4,513 6,4986.9 4.8 1,591 2,782 3,577 6,756 7,451 10,730

.7-3.4 1,920 3,359 4,319 8,158 8,997 12,9566.9 1,640 2,868 3,687 6,882 7,682 11,064

8.6 5.5 2,110 3,694 4,749 8,972 9,894 14,248.9-4.1 2,338 4,092 5,261 9,937 10,960 15,782

6.9 2,430 4,251 5,466 10,324 11,386 16,39710.3 6.2 2,564 4,486 5,769 10,897 12,018 17,306

1.0-5.5 2,770 4,846 6,231 11,770 12,982 18,691

Table M10-5. GD-10/GD-10F Capacities—Air (m3/h)

Table M11-2. GD-24 Capacities—Water (l/min)

Table M12-3. GD-20 Capacities—Water (l/min)

Table M12-2. GD-20 Capacities—Air (m3/h)

Table M11-3. GD-24 Dimensions and Weights

Table M12-4. GD-20 Dimensions and Weights

NOTE: Minimum flow is 4.9 l/min.

NOTE: Maximum pressure reduction ratio 10:1.

NOTE: Maximum pressure reduction ratio 10:1.

*GD-10F not available above 25 mm.** 50mm GD-10 valve maximum inlet pressure is 20.7 bar.

NOTES: Available in sizes below 2" upon request.Differential valve (GD-21) available upon request.Back pressure valve (GD-20R) available upon request

076 METRIC TABLES 4.0 12/3/98 3:02 PM Page 37

Metric Tables

Connection Size (mm)Symbol 15 20 25 32 40 50 65 80 100 L (mm) 150 155 160 190 190 220 245 290 330H (mm) 210 210 226 24 24 27 293 343 391H1 (mm) 64 64 67 82 82 93 100 122 144GP-100, GP-31A Wt. (kg) 6.0 6.0 8.0 12.0 12.0 17.0 – – –GP-32/32A Wt. (kg) – – – – – 20.0 24.0 34.0 53.0Cv 1.5 2.3 4.0 6.5 9.0 16.0 25.0 36.0 64.0

NOTE: GP-100 is 15 mm-50 mm NPT, GP-32 is 50 mm-100 mm ANSI 125 lb flanged. For sizes 125 mm-200 mm consult factory.

Connection Size (mm)Symbol 15 20 25 32 40 50* 65 80 100 125 150 200 250L (mm) 219 222 257 270 283 305 264 305 375 480 505 597 715H (mm) 311 311 369 369 383 415 483 512 592 697 741 822 864H1 (mm) 77 77 87 87 94 103 125 139 170 225 225 271 330GP-18/18A Wt. (kg) 10.0 10.0 16.0 17.0 19.0 25.0 – – – – – – –GP-28/28A Wt. (kg) – – – – – 25.0 35.0 44.0 87.0 141.0 197.0 323.0 409.0Cv 2.1 3.5 6.25 9.7 14.0 20.8 36.0 46.0 79.5 114.0 152.0 265.0 412.0

NOTE: GP-18, 15 mm-50 mm are flanged and supplied with NPT companion flanges, gasket and bolts – not shown. “L” dimensions include the companion flanges. GP-28 is ANSI 250 lb flanged.* GP-28 50 mm flanged face-to-face 238 mm.

Connection Size (mm)Symbol 20 25 32 40 50* 65 80 100 125 150L (mm) 229 260 280 283 302 289 340 391 489 521H (mm) 352 418 433 433 468 529 557 637 751 785H1 (mm) 78 90 96 96 109 128 146 172 221 224GP-1/1A Wt. (kg) 14.0 23.0 27.0 27.0 34.0 52.0 68.0 103.0 160.0 233.0Cv 3.5 6.25 9.7 14.0 20.8 36.0 46.0 79.5 114.0 152.0

Note: 20 mm-50 mm are flanged and supplied with NPT companion flanges, gaskets and bolts – not shown. “L” dimensions include the companion flanges.

GP-1 50 mm and larger are ANSI 300 lb flanged.*GP-1 50 mm flanged face-to-face 256 mm.

Table M15-1. GP-100, GP-32 Dimensions and Weights

Table M15-2. GP-18/28, 18A/28A Dimensions and Weights

Table M15-3. GP-1/1A Dimensions and Weights

076 METRIC TABLES 4.0 12/3/98 3:02 PM Page 38

Connection Size (mm) 15 20 25 32 40 50 65 80 100Factor .714 .657 .640 .670 .643 .769 .694 .783 .805

Connection Size (mm)Inlet Outlet15 20 25 32 40 50 65 80 100 125 150 200++ 250++

1.4 .35-.7 57 95 169 262 378 561 971 1,241 2,143 3,075 4,100 7,147 11,112

2.01.4 57 94 168 261 376 560 968 1,237 2,138 3,066 4,088 7,127 11,081

.35-1 73 122 217 337 486 723 1,251 1,598 2,762 3,961 5,281 9,207 14,3142 57 95 170 264 380 565 979 1,250 2,161 3,099 4,132 7,204 11,201

2.8 1.7 76 126 224 348 503 747 1,293 1,652 2,855 4,095 5,459 9,518 14,798.35-1.4 89 149 266 412 595 885 1,530 1,956 3,380 4,847 6,463 11,267 17,517

2.8 69 116 206 320 462 686 1,187 1,517 2,622 3,760 5,014 8,740 13,5893.4 2.2 90 150 267 415 598 889 1,538 1,966 3,398 4,872 6,497 11,326 17,609

.35-1.7 105 176 314 488 704 1,046 1,810 2,313 3,998 5,733 7,644 13,327 20,7194.1 100 166 296 460 664 986 1,706 2,180 3,768 5,403 7,205 12,561 19,529

5.2 3.3 129 215 383 594 857 1,274 2,204 2,816 4,868 6,980 9,306 16,225 25,225.55-2.6 146 244 436 676 976 1,450 2,510 3,207 5,543 7,949 10,598 18,476 28,726

5.5 130 216 386 599 865 1,285 2,224 2,841 4,911 7,042 9,389 16,370 25,4506.9 4.5 165 275 492 764 1,102 1,638 2,835 3,622 6,260 8,976 11,968 20,865 32,425

.7-3.4 187 312 557 865 1,248 1,855 3,210 4,101 7,088 10,164 13,551 23,625 36,7316.9 160 266 476 738 1,066 1,583 2,740 3,502 6,052 8,678 11,571 20,378 31,363

8.6 5.5 206 343 613 951 1,372 2,039 3,529 4,510 7,794 11,176 14,901 25,979 40,390.9-4.3 228 380 679 1,053 1,520 2,259 3,909 4,995 8,633 12,379 16,505 28,775 44,737

8.3 190 317 565 878 1,266 1,882 3,257 4,161 7,192 10,313 13,751 23,973 37,27210.3* 6.9 237 395 705 1,095 1,580 2,347 4,061 5,190 8,970 12,862 17,149 29,898 46,483

1-5.2 269 448 804 1,242 1,792 2,663 4,608 5,889 10,177 14,594 19,459 33,925 52,7439.6 220 367 665 1,016 1,467 2,180 3,773 4,821 8,332 11,947 15,929 27,772 43,178

12.1 8.3 268 446 797 1,237 1,785 2,652 4,590 5,865 10,136 14,535 19,380 33,788 52,5311.2-6 310 516 921 1,430 2,064 3,069 5,308 6,783 11,722 16,809 22,412 39,074 60,74911.0 250 417 755 1,155 1,668 2,471 4,289 5,480 9,471 13,581 18,108 31,570 49,082

13.8 9.6 299 497 888 1,379 1,990 2,956 5,116 6,537 11,298 16,200 21,600 37,659 58,5491.4-6.9 350 584 1,043 1,619 2,336 3,471 6,008 7,676 13,267 19,024 25,366 44,223 68,755

12.4 280 467 834 1,295 1,869 2,776 4,804 6,139 10,610 15,214 20,286 35,367 54,98515.5 9.6 367 612 1,092 1,695 2,447 3,635 6,292 8,040 13,894 19,924 26,565 46,315 72,006

1.6-7.7 391 652 1,165 1,807 2,608 3,875 6,707 8,570 14,812 21,240 28,320 49,373 76,76012.4 360 599 1,070 1,660 2,396 3,560 6,162 7,894 13,609 19,514 26,146 45,361 70,524

17.2** 11.0 399 665 1,186 1,841 2,658 3,948 6,834 8,732 15,091 21,640 28,853 50,303 78,2079.6 431 718 1,281 1,989 2,870 4,265 7,381 9,491 16,300 23,373 31,164 54,332 84,470

1.7-8.6 432 720 1,286 1,996 2,880 4,280 7,407 9,464 16,357 23,455 31,273 54,520 84,77112.4 495 826 1,475 2,289 3,304 4,909 8,496 10,856 18,762 26,904 35,872 — —

20.7+ 11.0 525 875 1,562 2,424 3,498 5,197 8,995 11,494 19,864 28,484 37,978 — —2-10.3 514 856 1,527 2,373 3,425 5,088 8,806 11,252 19,446 27,885 37,180 — —

* GP -100, GP-32 to be used up to 10.3 bar inlet maximum.** GP-18/28 to be used up to 17.2 bar inlet maximum.+ GP-1 only to be used up to 20.7 bar inlet maximum.++ GP-1 not available in these sizes.

Table M16-1. GP-18/28, GP-1 Capacities—Steam (kg/hr)

Table M16-2. GP-100, GP-32 Capacity Factors

NOTES: For GP-100, GP-32 capacities, multiply Table M16-1 values by factor listed in Table M16-2.For GP-31A/32A air capacities (m3/hr), multiply steam capacities for GP-31/32 by 1.34.For GP-18A/28A/1A air capacities (m3/hr), multiply steam capacities by 1.34.

(bar)(bar)

076 METRIC TABLES 4.0 12/3/98 3:02 PM Page 39

Metric Tables

Connection SizeSymbol

15 20 25 32 40 50A (mm) 200 200 225 225 225 276H (mm) 412 412 422 451 451 514H1 (mm) 143 143 149 165 165 191Wt (kg) 20 20 26 28 28 43Cv 5.0 7.2 10.9 14.3 18.8 32.0

Size Face-to-Face (mm) A F H Integral H Remote H1 H2Weights (kg)

(mm) NPT 150# 300# (mm) (mm) (mm) (mm) (mm) (mm) NPT 150# 300#Cv

15 150 – – 200 176 398 362 170 244 14 – – 5.020 150 – – 200 176 398 362 170 244 14 – – 7.225 160 – – 226 180 404 367 175 254 19 – – 10.932 180 – – 226 180 434 384 192 283 22 – – 14.340 180 – – 226 180 434 384 192 283 22 – – 18.850 230 218 222 276 197 498 406 216 321 33 36 36 32.065 – 278 282 352 211 552 440 251 375 – 65 65 60.080 – 294 302 352 222 575 456 264 400 – 69 72 78.0100 – 330 342 401 240 658 511 321 489 – 107 111 120.0150 – 461 483 502 282 712 711 406 800 – 232 250 223.0

NOTE: 150 size valve standard in remote mount with 125 or 250 lb ANSI flanges.

Size Face-to-Face (mm) *H Integral H1 A1 F H Remote **A2Weights (kg)+

(mm) NPT 150# 300# (mm) (mm) (mm) (mm) (mm) (mm) NPT 150# 300#Cv

15 150 – – 319 170 200 175 244 125 16 – – 5.020 150 – – 319 170 200 175 244 125 16 – – 7.225 160 – – 329 175 226 200 250 125 20 – – 10.932 180 – – 359 192 226 200 282 125 23 – – 14.340 180 – – 359 192 226 200 282 125 23 – – 18.850 230 218 222 419 216 276 200 321 125 34 37 38 32.065 – 278 282 472 251 352 225 375 125 – 65 66 60.080 – 294 302 495 264 352 225 400 125 – 71 73 78.0100 – 330 342 578 321 401 251 489 125 – 109 113 120.0

* For GP-2000K2 add 31 mm to H dimension.** For GP-2000K2 A2 dimension is 172 mm.+ For GP-2000K-2 weight, add 3 kg.

Size Face-to-Face (mm) H H1 A Weights (kg)(mm) NPT 150# 300# (mm) (mm) (mm) NPT 150# 300#

Cv

15 150 – – 244 74 200 13 – – 5.020 150 – – 244 74 200 13 – – 7.225 160 – – 251 76 226 17 – – 10.932 180 – – 282 90 226 20 – – 14.340 180 – – 282 90 226 20 – – 18.850 230 218 222 319 103 276 31 34 34 32.065 – 278 282 373 122 352 – 62 62 60.080 – 294 302 399 135 352 – 67 69 78.0

100 – 330 342 488 167 401 – 105 109 120.0

Tables M18-2 and M25-2. GP-2000 and GP-2000R Dimensions and Weights

Table M19-2. GP-11S Dimensions and Weights Table M21-2. GD-2000K Dimensions and Weights

Table M20-2. GP-2000K1/GP-2000K2 Dimensions and Weights

NOTE: 15mm through 50mm standard is integral mount.

076 METRIC TABLES 4.0 12/3/98 3:02 PM Page 40

Tables M26-1 and M34-1. GP-2000, GP-2000K-1, K-2, GD-2000K, GP-2000R, GP-11S, OB-2000, OB-2000PT Capacities—Steam (kg/hr)

GP-1

1S O

NLY

Inlet Outlet Connection Size (mm)(bar) (bar) 15 20 25 32 40 50 65 80 100 150*

**0.69 0-.21 96 138 209 274 360 613 1,150 1,495 2,300

1.03.55 91 135 217 261 343 584 1,095 1,424 2,191.21 114 163 247 325 427 727 1,364 1,773 2,728.89 99 143 217 284 374 637 1,195 1,554 2,390

1.38 .68 115 167 253 332 437 743 1,393 1,812 2,788.21 142 205 310 406 535 910 1,707 2,219 3,414

1.721.24 107 154 233 307 403 686 1,286 1,672 2,573

.21-.34 153 222 335 440 579 986 2,080 2,889 4,446

2.071.58 114 164 248 327 430 731 1,372 1,784 2,746

.21-.48 173 249 378 496 652 1,109 2,080 2,889 4,4462.27 127 183 277 364 479 816 1,530 1,966 3,060

2.75 1.7 179 258 391 512 673 1,147 2,151 2,796 4,302.21-.83 212 305 462 607 798 1,811 2,546 3,536 5,441

2.89 148 213 323 424 558 945 1,781 2,343 3,5633.44 2.06 222 320 485 637 837 1,426 2,673 3,475 5,348

.21-1.17 251 362 547 717 944 1,606 3,011 4,183 6,4353.5 169 243 369 484 636 1,083 2,031 2,641 4,064

4.133.1 213 307 465 611 803 1,368 2,566 3,336 5,1332.4 265 382 579 759 998 1,700 3,188 4,144 6,376

.21-1.5 290 417 631 829 1,089 1,854 3,468 4,830 7,4304.3 213 307 465 610 798 1,366 2,562 3,330 5,124

5.173.7 268 387 586 769 1,011 1,721 3,227 4,196 6,4553.1 318 459 695 912 1,199 2,041 3,827 4,975 7,654

.27-2.1 348 501 758 995 1,308 2,226 4,175 5,799 8,8775.8 269 388 588 772 1,015 1,015 1,728 4,214 6,487

6.895.1 340 490 742 973 1,280 2,179 4,086 5,312 8,1724.1 414 597 903 1,185 1,558 2,653 4,975 6,468 9,952

.34-2.9 445 640 970 1,272 1,672 2,847 5,704 7,416 11,4097.3 335 482 730 958 1,259 2,144 4,020 5,227 8,042

8.616.8 379 546 828 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

.48-3.7 541 780 1,181 1,549 2,037 3,468 6,947 9,032 13,8968.7 399 571 871 1,143 1,503 2,559 4,799 6,238 9,598

10.33 6.8 563 810 1,223 1,610 2,117 3,603 6,756 8,784 13,513.55-4.6 638 920 1,392 1,827 2,402 4,089 8,191 10,648 16,382

10.1 464 668 1,012 1,328 1,747 2,973 5,576 7,249 11,152

12.058.6 611 880 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

.55-5.5 735 1,059 1,605 2,104 2,766 4,709 9,434 12,265 18,86911.7 521 750 1,136 1,490 1,960 3,337 6,257 8,134 12,515

13.7810.3 656 944 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

.68-6.3 833 1,199 1,815 2,382 3,131 5,330 10,678 13,881 21,35613.1 586 843 1,277 1,676 2,204 3,751 6,828 9,145 14,069

15.5012.0 697 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

.82-7.21 929 1,339 2,027 2,659 3,405 5,950 11,921 15,498 23,84313.78 737 1,061 1,607 2,109 2,773 4,719 8,850 11,505 17,701

17.2212.05 879 1,266 1,917 2,514 3,304 5,628 10,553 13,719 21,10710.33 986 1,421 2,151 2,823 3,711 6,318 11,846 15,400 23,692

.89-8.06 1,026 1,478 2,238 2,936 3,861 6,571 13,165 17,114 26,33013.78 926 1,334 2,019 2,650 3,484 5,930 11,119 14,455 22,238 –

18.9412.05 1,043 1,502 2,274 2,983 3,921 6,676 12,517 16,272 25,034 –10.33 1,135 1,635 2,475 3,247 4,269 7,266 13,624 17,712 27,250 –

.89-8.06 1,181 1,700 2,574 3,377 4,440 7,557 14,170 18,421 28,340 –13.78 1,096 1,578 2,389 3,135 4,121 7,015 13,153 17,099 26,307 –

20.6712.05 1,166 1,722 2,607 3,421 4,497 7,656 14,354 18,661 28,709 –10.33 1,277 1,840 2,785 3,653 4,803 8,176 15,330 19,929 30,660 –

.89-8.06 1,221 1,758 2,661 3,491 4,617 7,813 14,649 19,044 29,753 –17.08 1,205 1,735 2,626 3,374 4,529 7,712 – – – –

24.1215.50 1,309 1,884 2,853 3,743 4,922 8,377 – – – –13.78 1,404 2,021 3,060 4,014 5,278 8,985 – – – –

1.24-11.02 1,511 2,176 3,295 4,323 5,683 9,673 – – – –17.08 1,679 2,418 3,661 4,803 6,314 10,747 – – – –

29.28 15.50 1,755 2,528 3,827 5,021 6,600 11,235 – – – –1.52-13.4 1,822 2,624 3,972 5,211 6,852 11,663 – – – –

*150 mm valve standard with 125 lb or 250 lb ANSI flange connections and cast iron bodies.** .69 bar inlet only applies to OB-2000 valve.Maximum pressure reduction is 20:1 except for GD-2000K (10:1).Minimum pressure reduction is 85% of inlet pressure.

Upon

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076 METRIC TABLES 4.0 12/3/98 3:02 PM Page 41

Inlet Outlet Connection Size (mm)(bar) (bar) 15 20 25

Cv Factors 3.7 4.6 5.83.45 132 164 206

4.0 2.76 180 223 2810-1.5 229 285 3604.0 141 175 221

4.833.45 149 193 3022.76 228 284 3580-1.9 260 323 4084.83 150 186 280

5.524.0 205 255 3223.45 244 304 3830-2.2 291 361 4565.52 157 196 2474.83 217 315 340

6.0 4.0 259 322 4063.45 290 361 4550-2.6 321 400 5046.0 165 205 2595.52 228 284 358

6.9 4.83 273 340 4284.0 307 382 482

0-2.9 353 438 5527.59 222 276 3496.9 281 350 441

8.62 5.52 363 451 5684.83 392 488 6150-3.8 429 534 6738.97 278 345 435

10.08.28 335 416 5256.9 417 519 654

0-4.3 506 629 793

Metric Tables

Inlet Outlet Connection Size (mm)(bar) (bar) 15 20 25

Cv Factors 3.7 4.6 5.8.20 30 38 48

.35 .14 37 45 580 46 57 72

.55 34 43 54

.7.41 47 59 75.28 57 70 890 70 87 110

.83 46 57 72

1.0.62 63 78 99.41 75 93 118

0-.35 91 113 1431.0 63 79 99

1.38.7 82 107 135.35 100 125 158

0-.14 106 132 1671.38 68 85 106

1.721.0 93 115 145.7 110 136 172

0-.35 122 151 1911.72 72 90 114

2.0 1.0 117 146 1850-.48 137 170 2152.0 111 138 175

2.76 1.38 149 185 2340-.83 168 209 2632.76 122 151 191

3.45 2.0 174 205 2590-1.2 199 247 311

∆P Connection Size (mm)(bar) 15 20 25

.35 30 38 47

.70 45 55 701.00 55 67 831.40 63 78 1001.80 70 83 1072.00 77 97 1203.50 100 127 1575.20 123 150 1877.00 143 175 2178.70 160 197 248

10.40 175 217 267

Size L H H1 T K R Weights (kg) Cv(mm) (mm) (mm) (mm) (mm) (mm) (mm)15 80 315 130 10 200 15 2.8 3.720 85 315 130 10 200 15 2.8 4.625 95 315 130 10 200 15 3.0 5.8

Table M29-3. OB-30/31 Dimensions and Weights

Table M30-1. OB-30 Capacities—Steam (kg/hr)

NOTE: Where it is not possible to calculate pressure drop, 35%-40% of gauge supply pressure can be used as a reasonable approximation.

Table M30-2. OB-30/31 Capacities—Water (l/min)

076 METRIC TABLES 4.0 12/3/98 3:02 PM Page 42

Model A B C D E F G H(mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm)

OB-30/31 20 25 204 7 20 20 15 10OB-2000/2000PT 25 20 197 7 23 25 20 16OBK-2000 25 20 318 7 20 20 15 13

Size Face-to-Face (mm) H1 H2 A F G Weights (kg)(mm) NPT 150# 300# (mm) (mm) (mm) (mm) (mm) NPT 150# 300#

Cv

15 150 – – 170 74 200 169 222 15 – – 5.020 150 – – 170 74 200 169 222 15 – – 7.225 160 – – 175 76 226 174 227 19 – – 10.932 180 – – 192 90 226 182 235 22 – – 14.340 180 – – 192 90 226 182 235 22 – – 18.850 230 218 222 216 103 276 189 242 33 36 36 32.065 – 278 282 251 122 352 206 259 – 63 64 60.080 – 294 302 264 135 352 217 270 – 69 71 78.0100 – 330 342 321 167 401 234 287 – 107 110 120.0

Size Face-to-Face (mm) H H1 A G Weights (kg)(mm) NPT 150# 300# (mm) (mm) (mm) (mm) NPT 150# 300#

Cv

15 150 – – 398 170 200 166 22 – – 5.020 150 – – 398 170 200 166 22 – – 7.225 160 – – 404 175 226 178 26 – – 10.932 180 – – 434 192 226 185 31 – – 14.340 180 – – 434 192 226 185 31 – – 18.850 230 218 222 498 216 276 166 41 43 46 32.065 – 278 282 552 251 352 166 – 72 76 60.080 – 294 302 575 264 352 166 – 78 83 78.0100 – 330 342 658 321 401 166 – 120 128 120.0

Table M30-4. Thermal Well Dimensions

Table M31-2. OB-2000 Dimensions and Weights

Table M33-4. OB-2000PT Dimensions and Weights

NOTE: For 150 mm consult factory.

NOTE: For 150 mm consult factory.

076 METRIC TABLES 4.0 12/3/98 3:02 PM Page 43

Limited Warranty and Remedy

Steam specialists for morethan 95 years, Armstrongmakes a full line of invertedbucket, float and thermo-static, thermostatic andcontrolled disc steam trapsin cast iron, steel andstainless steel. We can alsomeet unique applicationneeds with special trapvariations.

Armstrong-Yoshitake, Inc.

221 Armstrong Blvd., P.O. Box 408, Three Rivers, Michigan 49093 - USA Ph: (616) 278-6610, Fax: (616) 273-8656

Steam Traps \ Humidifiers \ Steam Coils \ Valves\ Water Heaters \ Air Vents \ Pumping TrapsCatalog AY-110-H 10M 8/98 www.armstrong-intl.com Printed in U.S.A.

Other ProductsFlo-Rite-Temp Radiator Products

Armstrong’s tankless instan-taneous steam water heaterprovides up to 8,700 gallonsper hour instantly. It elim-inates troublesome storagetanks and allows you to heatwater as you need it—withlower installed costs, lessmaintenance and savedspace.

Thermostatic radiator valves,traps, replacement capsulesand air vents for industrial,commercial and residentialapplications. Ask for catalogAY-201.

The Armstrong control valveprovides the flexibility to applythe right valve to an applica-tion. Designed for steamand hot water service, theArmstrong control valve isideally suited to non-freezingapplications in the 1/2" to11/2"range. Also available with anintegral steam separator.

Armstrong-Yoshitake, Inc. warrants to the original userthat those products supplied by it and used in the serviceand in the manner for which they are intended shall befree from defects in materials and workmanship for aperiod of one (1) year after installation, but not longerthan fifteen (15) months from date of shipment. Exceptas may be expressly provided for in a written agreementbetween Armstrong-Yoshitake, Inc. and the user, whichis signed by both parties, Armstrong-Yoshitake, Inc.DOES NOT MAKE ANY OTHER REPRESENTATIONSOR WARRANTIES, EXPRESS OR IMPLIED, INCLUDING,BUT NOT LIMITED TO, ANY IMPLIED WARRANTYOF MERCHANTABILITY OR ANY IMPLIED WARRANTYOF FITNESS FOR A PARTICULAR PURPOSE.

The sole and exclusive remedy with respect to theabove limited warranty or with respect to any other claimrelating to the products or to defects or any condition oruse of the products supplied by Armstrong-Yoshitake,Inc. however caused, and whether such claim is basedupon warranty, contract, negligence, strict liability or anyother theory, is limited to Armstrong-Yoshitake, Inc.’srepair or replacement of the part or product, excludingany labor or any other cost to remove or install said partor product or, at Armstrong-Yoshitake, Inc.’s option, torepayment of the purchase price. Notice of any suchclaim must be given in writing to Armstrong-Yoshitake,Inc. within fifteen months after the first installation or useof the products. In no event shall Armstrong-Yoshitake,Inc. be liable for special, direct, indirect, incidental orconsequential damages, including, but not limited to,loss of use or profits or to interruption of business activity.

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