Industrial Regulators

INDUSTRIAL REGULATORS

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Get Consistent Quality By involving every employee in our ISO 9001:2015 Quality Assurance Program, you can count on the quality we provide you. We have coordinated our business systems, invested in state-of-the-art machine tools, and built an extensive component inventory so we can consistently provide cost- effective solutions and on-time delivery to meet your replacement or project requirements — regardless of size or complexity. Make the Right Choice “We simply make it right” by putting your needs first. The next time you specify control valves, regulators or vapor control emission systems, or you need a replacement fast...call the supplier that makes it right. Rely on Cashco for your single- source convenience. Great service, field-proven quality, and timely delivery makes Cashco the right choice. Select Control Valves & Regulators FOR SPECIALIZED OR UTILITY SERVICE We manufacture a broad line of throttling rotary and linear control valves, pressure reducing regulators, and back pressure regulators in line sizes from 1⁄4 inch to 10 inches and Cv ranges from .002 to 4,406. Models are available to handle slurries, cryogenic service, and corrosive fluids; to withstand high temperatures and pressures; and to maximize the reduction of fugitive emissions. Contact Cashco for complete product information.

TABLE OF CONTENTS

Pressure Reducing Regulators Cashco Model 1000HP 5 Model D/DL 5 Model 1000LP 6 Model POSR-1 6 Model POSR-2 6 Model 31-N 7 Model 1465 7 Model 3381 7 Model 4381 8 Model MPRV-L 8 Model MPRV-H 8 Model PBE 8 Model PBE-L 9 Model PBE-H 9 Model HP 9 Model 8310LP/HP 10 Model 345 10 Model CG Pilot 10 Model DA1 11 Model DA2 11 Model DA4 12 Model DAP 12 Model DAO 12 Model PGR-1 13 Model ULR-1 13 Model PTR-1 13 Model ALR-1 14

WE ARE CASHCO The Strength Of Our Organization Is Our Employees

Model SLR-1 Model SLR-2

14 14 15 15 15 16 16

Model P1 Model P2 Model P3 Model P4 Model P5 Model P7

COMMITMENT. QUALITY. DEDICATION. Cashco, Inc., is a manufacturing enterprise, centrally located within the United States. Our employees use hard work, commitment, and passion to define company goals that deliver world-class products at a fair price. At Cashco, we continue to innovate our products until they are recognized as best in class within their respective industry. If the customer is not satisfied, we take it upon ourselves to make it right. Cashco employees are the bloodline of our company elevating products above industry standards for performance, dependability, and safety. At Cashco, the strength of our organization is our employees.

16 Back Pressure Regulators Cashco Model BQ 17 Model BR 17 Model 123 18 Model 1171 18 Model 1164 19 Model 6987 19 Model 2171 20 Model 8311HP/LP 20 Model CA-1 & CA-2 21 Model 31-B 21 Model DA-5 22 Model DA-6 22 Model DA-8 23 Model B2 23 Model B7 23

PRESSURE REDUCING REGULATORS

MODEL 1000HP

MODEL D/DL

The Model D Pressure Reducing Regulator is a time-proven product. For over 80 years, this inexpensive, ruggedly built regulator with piston-type, valve plug has been serving in medium-capacity, industrial applications — including service for steam, air, oil, water, and many chemicals and gases. Optional construction extends Model D capabilities to cryogenic, pharmaceutical, food, and NACE applications.

The Model 1000HP is the most versatile, self- contained pressure reducing regulator available today. Its unique internal design and straight- through flow path isolate the diaphragm from fluid velocity effects and increase capacity and stability at both high or low-flow rates. Flow-to- open design and extended guiding allow pressure drops to 650 psig. It can be used in severe service and cryogenic applications that normal pressure reducing regulators cannot handle. Four body materials and nineteen trim material selections provide compatibility with many fluids — including saturated and superheated steam, industrial gases, fuel oils, compressed air, sour gas, chemical, and other process fluid services.

At Cashco we have been creating innovative pressure control solutions to meet the needs of American industry since 1914. Today you’ll find the Cashco name on an extensive line of self-contained regulators, control valves, and vapor control systems that are available globally according to PED, CE, ATEX, and CRN. Cashco regulators, control valves, and vapor control systems are in use worldwide, covering a wide range of applications. We believe our quality is surpassed only by the service we provide to ensure you get the product you need — when you need it. When you contact Cashco or our representatives, you will discover the care we take to help you specify the best valve for your application and the speed with which we handle your order — large or small. If you don’t find what you’re looking for in the following pages, we will be glad to provide you with personal assistance and technical literature. Please call 785.472.4461 or email us at: sales@cashco.com. You may also review our entire product offering at www.cashco.com.

Model D body size: 3/8", 1/2", 3/4", 1" Model DL body size: 1-1/2", 2" Model D maximum Cv: 1.8 to 4 Model DL maximum Cv: 7.0 to 10 Materials: Body

The Model D is an economical industrial- grade regulator.

Body sizes:

The Model 1000HP is a self-contained

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

Maximum Cv: 1.35 to 22 Materials: Body

pressure reducing regulator.

CI, BRZ, CS, 316 SST CI, BRZ, CS, 316 SST BRZ, 416 SST, 316 SST

DI, BRZ, CS, 316 SST DI, BRZ, CS, 316 SST BR, 416 SST, 316 SST

Spring chamber

Trim Seat

Metal – BR, SST Composition – Buna-N, TFE, EPDM, F.C. Elastomer

Metal – SST Composition – Buna-N, EPR, TFE, F.C. Elastomer Phos. BRZ, 302 SST, Neoprene, F.C. Elastomer, EPDM

Diaphragm

Phos. BRZ, 302 SST, Neoprene, F.C. Elastomer, EPDM

Diaphragm

End connections: NPT, BSP, Flanged, Extended Nipples, flanges in ASME or DIN Temperature range: -325° F to +400° F, (-198° C to +204° C) Pressures:

End connections: NPT, BSP, Flanged, Extended Pipe Ends, flanges in ASME or DIN Temperature range: -325° F to +600° F, (-198° C to +315° C ), (special construction to -425° F), (-232° C) Pressures:

Model D Inlet: up to 400 psig, (22 barg) Model DL Inlet: up to 300 psig, (20 barg) Model D Outlet: up to 250 psig, (17 barg) Model DL Outlet: up to 150 psig, (10 barg)

Inlet: up to 740 psig standard, (51 barg) Outlet: 10 to 300 psig, (0.7 - 20 barg)

Pressure drop:

Up to 650 psig, (44 barg)

Up to 350 psid, (24 barg)

Options: Differential construction (single and double diaphragm), pharmaceutical/food industry and cryogenic construction, NACE service, numerous industry-specific options

Options:

Handwheel and locking lever

PRESSURE REDUCING REGULATORS

MODEL POSR-1

MODEL 1000LP

MODEL 31-N

MODEL 1465

The POSR-1 is a low-cost, pilot-operated pressure reducing steam regulator with a bellows seal design that eliminates sticking. Pilot and main valve trim are hardened 416 SST for long life. These regulators can maintain outlet pressure within + /- 5% and are commonly used in large steam heating installations and process applications with coolers, pasteurizers, sterilizers, vulcanizers, and other equipment. Available without the pilot as a pressure-loaded regulator.

This 1000LP-Series Regulator has a larger diaphragm area than its 1000HP counterpart to handle lower operating pressures. But the 1000LP’s basic construction, specifications, and superior rangeability mirrors the 1000HP regulator. The internal design isolates the diaphragm from fluid velocity effects and eliminates flow-induced instability at high and low-flow rates.

The Model 1465 is intended specifically for low-flow and high-pressure drop applications. It is frequently used to reduce pressure on a sample fluid to allow easier sampling/analysis.

Model 31-N is designed for use in the process industry where low-pressure gas is controlled. Corrosion-resistant ST or SST construction negates gas

diffusion effects. The 31-N is designed primarily for blanketing fluids that are volatile, corrosive, or lethal. No internal relief.

Body size: 1/4" Maximum Cv:

Pressures :

Inlet: up to 5000 psig, (344 barg) Outlet: 5 to 500 psig, (0.34 - 34 barg)

0.05 (0.109"orifice) to 0.19 (0.156"orifice)

Pressure drop :

Body sizes:

Temperature range:

Up to 4700 psid, (324 bard)

Materials: Body

Body sizes:

End connections:

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

-30° F to +400° F, (-34° C to +204° C)

316 SST

Options :

1/2", 3/4", 1" Maximum Cv: 3 to 9 Materials: Body

NPT, BSP, Flanged, Extended Pipe Ends, flanges in ASME or DIN

Maximum Cv: 0.5 to 3.9 Materials: Body

Pressures:

Spring chamber

BR, 316L SST

NACE construction, high outlet pressure construction

Body sizes:

Pressures:

Inlet: up to 100 psig, (6.9 barg) Outlet: 2" W.C. to 16" W.C., (5 mbarg to 40 mbarg) Pressure drop: Up to 100 psid, (6.9 bard) Options: Pharmaceutical

The Model POSR-1 is a low- cost pilot-operated steam regulator with bellows seals that eliminates sticking.

Trim Seat

SST

1/2", 3/4", 1" Maximum Cv: 3.4 to 5.8 Materials: Body

Inlet: up to 300 psig, (20 barg) Outlet: 5 to 150 psig, (0.34 -10 barg)

Temperature range:

Metal – Stellite

-20° F to +600° F, (-6° C to +315° C)

CS, 316 SST CS, 316 SST

Diaphragm

302 SST, Neoprene, Elgiloy, FKM

CI, BRZ, CS, 316 SST Spring chamber CI, CS, 316 SST, BRZ Trim BR, 416 SST, 316 SST Seat Metal – SST Composition – Buna-N, TFE, F.C. Elastomer Diaphragm Phos. BRZ, 302 SST, Neoprene, F.C. Elastomer, EPDM

Pressures:

Spring chamber

The Model 1465 is a low-flow regulator for condensate

Inlet: up to 450 psig standard, (31 barg) Outlet: 1 to 30 psig, (0.069 - 2barg)

Trim Seat

316L SST

The Model 1000LP is a

End connections: NPT Temperature range:

DI, CS

Pressure drop:

Composition – Buna-N, Silicone, F.C. Elastomer

The Model 31-N is a regulator designed for up to 16" W.C. control.

Seat

Metal – HDN 416 SST

Up to 200 psid, (13 barg)

and food industry construction

pressure reducing regulator with a large diaphragm area to handle lower

Diaphragm 302 SST

Options:

Diaphragm

Buna-N, F.C. Elastomer

analyzer letdown.

-20° F to +400° F, (-28° C to +204° C)

Pressure loaded main valve

End connections: NPT Temperature range:

Options:

End connections:

Similar to options for 1000 HP

NPT, Flanges, Extended Nipples, flanges in ASME or DIN

operating pressures.

Up to +450° F, (232° C)

MODEL POSR-2

MODEL 3381

Body sizes: 1/4", 3/8" Maximum Cv: 0.5 Materials: Body

End connections: NPT Temperature range:

The POSR-2 is a high-capacity version of the POSR-1. It utilizes a pressure-loaded piston design to eliminate the common problem of main valve diaphragm rupture. The POSR-1 and POSR-2 also eliminate common pilot valve sticking and provide high sensitivity and stability even on older or intermittently used steam systems.

Body sizes:

Temperature range:

The Model 3381 is designed to handle low to moderate flows. It is suitable for controlling a wide range of fluids, including industrial gases, air, oil, steam, and water. High- mass plug provides stability.

-325° F to +400° F, (-198° C to +204° C)

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

Up to +450° F, (+232° C)

Pressures:

Maximum Cv: 6.9 to 88 Materials: Body

Pressures:

BRZ BRZ

Inlet: up to 800 psig, (55 barg) Outlet: 5 to 300 psig, (0.34 - 20 barg)

Inlet: up to 300 psig, (20 barg) Outlet: 5 to 150 psig, (10 barg)

Spring chamber

Trim Seat

Options:

DI, CS

Pressure drop:

Metal – BR Composition – Buna-N, TFE Phos. BRZ, Neoprene, FKM

Cryogenic construction, dome loading, panel mounting, outlet pressure gauge

Seat Metal – HDN 416 SST Diaphragm 302 SST – pilot only

Up to 200 psid, (13 barg)

The Model 3381 is a bronze regulator for low-flow service.

Options:

The Model POSR-2 is a high-capacity,

Diaphragm

Handwheel

End connections:

NPT, Flanged, flanges in ASME or DIN

pilot-operated steam regulator with bellows seal that eliminates sticking.

PRESSURE REDUCING REGULATORS

MODEL MPRV-L The Model MPRV-L is a compact, Brass body or SST body pressure reducing regulator used to control outlet pressure up to 600 psig.

MODEL PBE-H

MODEL 4381

MODEL PBE-L

The Model PBE has a compact body and functions in a dual role as a pressure building regulator and as an economizer relief regulator in one model. The pressure build feature controls the outlet pressure while the econo-mizer feature operates to relieve any excess pressure in the system above set point from atmospheric to 250 psig.

The Model PBE-L has a compact, forged body and functions in a dual role as a pressure building regulator and as an economizer relief regulator in one model. The pressure build feature controls the outlet pressure while the economizer feature operates to relieve any excess pressure in the system above set point from atmospheric to 600 psig.

The Model 4381 duplicates the strengths of the 3381 in SST. Its high-mass plug contributes to stability and it can handle industrial gases, air, oil, steam, water, and many chemicals.

The Model MPRV-L is a compact regulator with a Max Cv of .48

The Model 4381 is a SST- bodied regulator for low-flow service.

Body sizes: 1/4", 3/8" Maximum Cv: .48 Materials: Body

End connections:

Body sizes:

British Std Tapered Pipe Threads, FNTP

NPT, Flanges, flanges in ASME or DIN

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

Temperature range:

Maximum Cv: 0.5 Materials: Body

Body sizes: 1/2" Maximum Cv: 1.80 Materials: Body

End connections:

Temperature range:

Body sizes: 1/2" Maximum Cv: 1.21 Materials: Body

End connections:

-325° F to +400° F, (-198° C to + 204° C)

British Std Tapered Pipe Threads, FNPT

-325 to +180°F, (-198° C to +204° C)

British Std Tapered Pipe Threads, FNPT

Pressures:

Temperature range: -325 to +150°F, (-198° C to +65° C) Pressures: 400 psig Max, (27 barg)

Bronze - ASTM B283, C37700 316/316L SST - ASTM A479

Pressures:

Temperature range: -325 to +150°F, (-198° C to +65° C) Pressures: 600 psig Max, (41 barg)

Inlet: up to 1500 psig, (103 barg) Outlet: 2 to 500 psig, (140 mbarg to 34 barg)

SST

Spring chamber

600 psig Max, (41 barg)

Spring chamber

BRZ, 316L SST

The Model PBE-H is a pressure build/ economizer with Max CV up to 1.80.

Trim Seat

Brass, SST

The Model PBE-L is a compact pressure build/economic regulator.

Options:

Trim Seat

SST

Bronze - ASTM B62 C83600 Bronze - ASTM B62 C83600

TFE or Buna-N

Bronze Bronze

Cryogenic construction, panel mounting, pharmaceutical/food industry construction, outlet pressure gauge

Metal – 316 SST Composition – TFE, EPDM 302 SST, TFE-coated SST, Neoprene, EPDM

Spring chamber

Diaphragm

Metal – 302 SST, Composition-Gylon or Buna-N

Spring chamber

Trim Seat

Diaphragm

TFE

Diaphragm

Phos. Bronze, 302 SST, or Gylon

Diaphragm

Metal – 302 SST, Composition or Gylon

MODEL PBE The Model PBE has a compact body and functions in a dual role as a pressure building regulator and as an economizer relief regulator in one model. The pressure build feature controls the outlet pressure while the economizer feature operates to relieve any excess pressure in the system above set point from atmospheric to 600 psig.

MODEL MPRV-H

The Model MPRV-H is a compact, Brass body or SST body pressure regulator used to control outlet pressure up to 600 psig.

MODEL HP The HP is a heavy-duty high-pressure regulator designed to control downstream pressure between 10 and 750 psig with inlet pressure as high as 3000 psig. Composition seat provides bubble-tight shutoff. Metal seating is available and metal seating surfaces can be stellited. This regulator is not designed to be used in steam applications.

Body sizes:

End connections:

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

NPT, Flanged, BSP, Extended Pipe Ends, flanges in ASME or DIN

The Model MPRV-H is a compact

Maximum Cv: 4.39 Materials: Body

The Model PBE is a compact

Temperature range:

Body sizes: 3/8", 1/2" Maximum Cv: 1.03 Materials: Body

End connections:

-20° F to +600° F, (-201° C to +315° C)

British Std Tapered Pipe Threads, FNTP

pressure reducing regulator with a Max CV of 1.03.

Body sizes: 1/4" Maximum Cv: .49 Materials: Body

End connections:

CS, SST, Mn BRZ Spring chamber CS, SST, Mn BRZ Trim 316 SST Seat Metal - 316 SST

Pressures:

Temperature range:

pressure build/ economizer up to 1/4".

British Std Tapered Pipe threads, FNPT

Inlet: up to 3000 psig, (206 barg) Outlet: 10 to 750 psig, (4 to 51 barg)

-325 to +180°F, (-198° C to +82° C)

Pressures:

Temperature range:

Options:

Bronze

600 psig Max, (41 barg)

-325 to +150°F, (-198° C to +65° C)

Composition-TFE or Nylon

NACE Construction, Oxygen cleaned, Differential Construction

Spring chamber

316/316L SST

The Model HP is a high-pressure regulator, the industry standard for differential service on seal oil systems.

Brass - ASTM B16, Alloy 360 Bronze - ASTM B283, C37700

Pressures:

Diaphragm

TFE coated SST, SST or Neoprene

Trim Seat

BR, SST

Spring chamber

600 psig Max, (41 barg)

TFE or Buna-N

Trim Seat

Diaphragm

Metal – 302 SST, Composition- Gylon, Buna-N

TFE

Diaphragm

Gylon, 302 SST

PRESSURE REDUCING REGULATORS

The Model 345 is a heavy-duty high- pressure regulator commonly found in hydraulic or gaseous service.

MODEL 8310LP/8310HP

MODEL 345

Cashco has been a technological pioneer in the regulator industry since 1914. The regulators are designed to perform and built to last with the highest Cv and regulation accuracy available per valve size. They also offer the highest rangeability of any regulator in the industry. Cashco regulators cover a wide range of compatible fluid applications including: water, steam, all industrial gases, acids, cryogenic fluids, PRESSURE REDUCING REGULATORS

The Model 8310LP and the Model 8310HP are some of the highest-capacity pressure reducing regulators we manufacture. Their balanced plug design and double-port construction yields outstanding performance even at very low pressure drops. Diaphragms are isolated from fluid velocity effects. Applications include a wide variety of fluids.

The Model 345 utilizes a piston design to handle high pressures. With optional nylon or

MODEL 8310LP

ultra-high purity fluids, corrosives, and high viscosity fluids. In addition, we manufacture a comprehensive line of control valves and regulators for all your process requirements. Our sales consultants can help you specify the appropriate product for your applications at: sales@cashco.com.

TFE seats, it can control downstream pressures between 50 and 3000 psig with inlet pressures as

high as 4000 psig. A metal-seated version with an unbalanced trim design is also available. The Model 345 is used primarily as a first-stage letdown valve on high-pressure applications. It is not designed to be used in steam applications.

Body sizes:

MODEL DA1

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

MODEL 8310HP

Maximum Cv: Up to 100 Materials: Body

End connections:

Body sizes:

The DA1 is an excellent pressure reducing regulator for all fluid types. Whether it is GOX or a viscous fluid, the Model DA1 is able to provide constant and accurate control through the necessary range of flow of your application. The regulator features a high flow design with balanced trim as a standard. The balanced trim allows rangeability up to 1000:1 for varying flows with very little change in set pressure. Due to

Body sizes:

End connections:

NPT, 125#-250#, 150#-600# Integral Flanged, PN16, PN25, PN40 DIN Flanged, Extended Pipe Nipples, Tube End Construction or BSP

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

1/2", 3/4", 1" Maximum Cv: Up to 1.8 Materials: Body

NPT, 300#, 600#, 900#, 1500# Flanges With SST Body

Maximum Cv: 198 Materials: Body

CI, CS Spring chamber DI, CS Trim SST Seat

Temperature range:

Up to +400° F, (204° C)

Temperature range:

BRZ, DI, CS, HC, Duplex SST, 316 SST BRZ, DI, CS, Duplex SST, 316 SST 17-PH SST, 316L SST, Monel PolyAll, V-TFE, GF-TFE, C+TFE, NBR, BC, FKM Composition – BC, EPR, FKM, FK, NBR, FKM + TFE, Elast. TFE Metal – Be-Cu

Alum. BRZ, SST

Pressures:

TFE, Rulon – 316 SST, Stellite

-425° to +400° F, (-253° C to +204° C)

Spring chamber

BRZ

Inlet: up to 4000 psig, (275 barg) Outlet: 50 to 3000 psig, (4 to 206 barg)

Diaphragm

302 SST, Neoprene, F.C. Elastomer

Inlet Pressure:

Trim Seat

316 SST

10 - 1480 psig, (0.69 - 102 barg)

Metal – 316 SST, Stellite Composition – TFE, Nylon

Models 8310LP/8310HP are self-contained high-capacity regulators with double-seat design ideal for remote installation.

Pressure drop:

the high capacities these regulators provide, it is now possible to install regulators where control valves were once needed. This allows additional savings since controllers, positioners, and auxiliary air supply are no longer needed.

End connections: 1-1/2", 2"

Outlet Pressure:

Up to 3000 psid, (206 bard)

– NPT, CI or CS

1- 450 psig, (0.07 - 31 barg)

Diaphragm

Options:

All sizes All sizes

– 125#, 250# flange, CI – 150#, 300# flange, CS

Options:

The Model DA1 is a high capacity pressure reducing regulator.

Weld-on flanges

NACE, Cleaned for O2 Service, Cleaned for Chlorine Service

Temperature range:

-20° F to +450° F, (-29° C to +232° C)

Pressures:

End connections: ¼” NPT (all ports) Optional brackets allow pilot mounting to Models DA4 & DA6, 1/2" - 4”-line sizes. Material Specifications: Body / Cover Dome / Lower Chamber / Body Cap BRZ/BRZ/BRZ/BRZ: ASTM B16, Alloy C36000 SST/SST/SST/SST: ASTM A479, Gr. 316/316L Dual Marked Temperature range: -425F to +400F (-253C to + 204C) Maximum Pressure Drop: 100 psid (6.9 Bard) Options: Cleaned for Oxygen Service

MODEL CG PILOT

HP – Inlet: up to 650 psig, (44 barg) / LP – Inlet: up to 200 psig, (13 barg) HP – Outlet: 10 to 200 psig, (0.69 to 13 barg) / LP – Outlet: 1 to 30 psig, (0.07 to 2 barg) Pressure drop:

Model CG-PL is a pressure-loaded, flow-to-open, direct-action, loading-type pilot regulator. Used in gaseous service only for pressure reducing or backpressure applications. Pressure-loading design increases sensitivity by eliminating the resultant “droop effect” range spring. May be loaded with process or auxiliary gas.

MODEL DA2

Body sizes:

End connections:

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

NPT, 125#-250#, 150#-600# Integral Flanged, PN16, PN25, PN40 DIN Flanged, Extended Pipe Nipples, Tube End Construction or BSP

HP – up to 450 psid, (31 bard) / LP – up to 200 psid, (13 bard)

Maximum Cv: 196 Materials: Body

The DA2 is a positive bias differential pressure reducing regulator for all fluid types. Much like the DA1, the ability to allow varying flows with little change in set pressure makes this an ideal regulator for high accuracy applications.

Options:

Differential service construction

BRZ, DI, CS, 316 SST BRZ, DI, CS, 316 SST

Temperature range:

Spring chamber

-425° to +400° F, (-253° C to + 204° C)

Trim Seat

17-PH SST, 316L SST, Monel

Inlet Pressure:

PolyAll, V-TFE, GF-TFE, C+TFE, Buna-N, BC Composition – BC, EPR, FKM, FK, NBR, FKM + TFE, Elast. TFE, Metal – Be-Cu

10 - 3705 psig, (0.69 - 255 barg)

Diaphragm

Options:

Cleaned for O2 Service, Cleaned for Chlorine Service

The Model DA2 is a positive bias differential pressure reducing regulator.

PRESSURE REDUCING REGULATORS

MODEL DA4

Model PGR-1 is high performance, pressure loaded diaphragm- type, flow-to-open pressure reducing regulator. Design includes an internal pressure balancing piston-cylinder that provides high flow capacity. The internal trim design allows the same basic unit to cover a broad range of pressure settings. Performance meets or exceeds that of competitive pressure loaded or pilot-operated designs. The PGR-1 regulator is applied primarily in clean natural gaseous service and fuel gas - sweet or sour. MODEL PGR-1 MODEL ULR-1 Model ULR-1 is high performance, pressure loaded diaphragm- type, flow-to-open pressure reducing regulator. Design includes an internal pressure balancing piston-cylinder that provides high flow capacity and high pressure drop capability. The internal trim design allows the same basic unit to cover a broad range of pressure settings. Performance meets or exceeds that of competitive pressure loaded or pilot-operated designs. A back pressure regulator or "unloader" is piped to the top of the dome and is "set" to control the outlet pressure of the pressure reducing regulator.

The DAP is a pressure loaded pressure reducing regulator for all fluid types. Much like the DAO, the ability to allow varying flows with little change in set pressure makes this an ideal regulator for high accuracy applications. The difference is the larger piston design, which allows for higher outlet pressures with lower pressure drops across the valve. MODEL DAP

The Model PGR-1 is a precise pressure reducing regulator.

End connections:

Body sizes:

The DA4 is a dome loaded, high capacity reducing regulator. Much like the DA1, the ability to allow

ASME Flanged, NPT Temperature range: -70° to +250°F, (-56° C to +121° C) Inlet Pressure: 10 – 400 psig Outlet Pressure: 2.0" W.C. – 200 psig

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

Maximum Cv: 198 Body/Cover Dome Materials: DI/DI, CS/CS, SST/SST

varying flows with little change in set pressure makes this an ideal regulator for high accuracy applications. (The DA4 and the DA6 are ideal solutions for automating your pressure control systems.)

The Model DA4 is a dome loaded high capacity reducing regulator.

DI = Ductile Iron CS = Carbon Steel SST = Stainless Steel

Temperature range: -425° to +400° F, (-253° C to +204° C) Inlet Pressure: 10 - 3705 psig, (0.69 - 255 barg) Outlet Pressure: 2.0" W.C. - 1500 psig, (0.04 - 103 barg) Options:

Body sizes:

End connections:

Body sizes:

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

NPT, 150#, 300#, 600#, Integral Flanged, PN16, PN25, PN40 DIN, Flanged, BSP

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

Maximum Cv: 50 Materials: Body

Maximum Cv: 198 Materials: Body

Temperature range:

-20° to +400° F, (-29° C to +204° C)

Body sizes:

End connections:

The Model DAP is a large piston/ pilot operated gaseous pressure reducing regulator.

SST SST

Inlet Pressure:

BRZ, DI, CS, Duplex SST, 316 SST BRZ, DI, CS, Duplex SST, 316 SST 17-PH SST, 316L SST, Monel

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

Standard: Female NPT ASME Flanged: 125#, 150#, 250#, 300#, 600# DIN Flanged: PN16, PN25, PN40

Cover Dome

50 - 3600 psig, (4 - 248 barg)

Cover Dome

Maximum Cv: 198 Body/Cover Dome Materials

Trim

17-PH SST, 316L SST

Outlet Pressure:

Trim Seat

1225 psig, (84 barg)

PolyAll, V-TFE, GF-TFE, C+TFE, BC, NBR, FKM

The Model ULR-1 is an economical, high capacity,

Seat

V-TFE, PA, C-TFE

Diaphragm

Composition – BC, EPR, FKM, FK, NBR, FKM + TFE, Elast. TFE, Metal – Be-Cu

DI/DI, BRZ/BRZ, CS/DI, BRZ/DI, CS/CS, SST/SST, SST/DI, SST/CS DI = Ductile Iron SST = Stainless Steel BRZ = Bronze CS = Carbon Steel

NACE, Cleaned for O2 Service, Cleaned for Chlorine Service

Temperature range: -50° to +400°F, (-45° C to +204° C) Max Operating Pressure: 475 psig, (32 barg)

End connections:

precision regulator.

NPT, 125#-250#, 150#-600# Integral Flanged, PN16, PN25, PN40 DIN Flanged, Extended Pipe Nipples, Tube End Construction or BSP

MODEL PTR-1

MODEL DAO

Body sizes:

End connections:

Model PTR-1 is high performance, pressure loaded diaphragm-type, flow- to-open pressure reducing regulator. Design includes an internal pressure balancing piston-cylinder that provides high flow capacity and high pressure drop capability. Performance meets or exceeds that of competitive pressure loaded or pilot-operated designs. A back pressure regulator or "unloader" is piped to the top of the dome and is "set" to control the outlet pressure of the pressure reducing regulator. In addition, a low temperature probe (pneumatic controller) with an integral, rigid insertion bulb and invar rod is installed up-stream of the Model PTR-1. When the exposed outer sheath senses a change in the process temperature below the minimum temperature set point of the probe, it vents loading pressure from the dome of the regulator and allows it to close.

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

Standard: Female NPT ASME Flanged: 150#, 300#, 600# DIN Flanged: PN16, PN25, PN40

Body sizes:

End connections:

Maximum Cv: 198 Body/Cover Dome Materials BRZ/BRZ SST/SST BRZ = Bronze SST = Stainless Steel

The DAO is a pilot-operated steam reducing regulator with a piston design. The internal pressure balanced plug/piston provides high flow capacity and moderate pressure drop capability. Much like the DAP, the ability to allow varying flows with little change in set pressure makes this an ideal regulator for high accuracy applications. Apply in steam service applications only.

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

NPT, 125#-250#, 150#-300# Integral Flanged

Maximum Cv: 220 Materials: Body

Temperature range: -325° to +400°F, (-198° C to +204° C) Max Operating Pressure: 475 psig, (32 barg)

Temperature range:

+100 F to +406° F, (+38° C to + 208° C)

DI, CS DI, CS

Inlet Pressure:

Cover Dome

35 - 400 psig, (2.4 - 27 barg)

Trim Seat

17-PH SST

Outlet Pressure:

GF-TFE

2 - 215 psig, (0.13 - 14 barg)

The Model PTR-1 is a precise temperature control regulator.

The Model DA0 is a small piston/ pilot operated steam pressure reducing regulator.

PRESSURE REDUCING REGULATORS

MODEL ALR-1

MODEL P1 The Model P1 is designed for gases and liquids with inlet pressures up to 3600 psig (248 Barg). Standard adjustable outlet ranges from 1-10 psig (.07-.69 Barg) thru 10-750 psig (.69-51.7 Barg). Flow coefficient of 0.02, 0.06, and 0.20 available. This versatile point of use regulator can be ordered with a variety of options to meet your system demands. Standard construction includes a 40 micron integral filter, adjustment knob, and diffusion resistant stainless steel diaphragm.

MODEL P2

End connections:

Body sizes:

Standard: Female NPT ASME Flanged: 125#, 150#, 250#, 300#, 600# DIN Flanged: PN16, PN25, PN40

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

Model ALR-1 is high performance, pressure loaded diaphragm- type, flow-to-open pressure reducing regulator. Design includes an internal pressure balancing piston-cylinder that provides high flow capacity and high pressure drop capability. The internal trim design allows the same basic unit to cover a broad range of pressure settings. Performance meets or exceeds that of competitive pressure loaded or pilot-operated designs. A back pressure regulator or "unloader" is used to maintain outlet pressure through an auxiliary gas supply.

The Model P2 is designed for gases with inlet pressures up to 3600 psig (248 Barg). Standard

Maximum Cv: 198 Body/Cover Dome Materials

adjustable outlet ranges from 1-10 psig (.07-.69 Barg) thru 10-750 psig (.69-51.7 Barg). Flow coefficient of 0.02, 0.06, and 0.20 available. This versatile cylinder gas regulator can be ordered with a variety of options to meet your system demands. Standard construction includes a 40 micron integral filter, adjustment knob, and diffusion resistant stainless steel diaphragm. Gauges and CGA fittings are optional.

DI/DI, BRZ/BRZ, CS/DI, BRZ/DI, CS/CS, SST/SST, SST/DI, SST/CS DI = Ductile Iron SST = Stainless Steel BRZ = Bronze CS = Carbon Steel

Temperature range: -50° to +400°F, (-45° C to +204° C) Max Operating Pressure: 475 psig, (32 barg)

The Model ALR uses auxiliary gas supply to load the dome.

The Model P2 is a single stage cylinder gas high pressure reducing regulator.

The Model P1 is a single stage high pressure reducing regulator.

Temperature range:

Body sizes:

Temperature range:

MODEL SLR-1 Model SLR-1 is high performance, self-relieving and reducing regulator. Design includes an internal pressure balancing piston-cylinder that provides high flow capacity and high pressure drop capability. The internal trim design allows the same basic unit to cover a broad range of pressure settings. Performance meets or exceeds that of competitive pressure loaded or pilot- operated designs.

-45° to 575° F (-42.7° to 301° C)

Body sizes:

End connections:

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

-45° to 575° F (-42.7° to 301° C)

Pressures:

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

Standard: Female NPT ASME Flanged: 125#, 150#, 250#, 300#, 600#; DIN Flanged: PN16, PN25, PN40

The Model SLR is a high

Maximum Cv:

Pressures:

Max Inlet: 3,600 psig (248.2 Barg) Max Outlet: 1-750 psig (.07-51.7 Barg)

Maximum Cv: 198 Body/Cover Dome Materials

.02, .06 and .20

Max Inlet: 3,600 psig (248.2 Barg) Max Outlet: 1-750 psig (.07-51.7 Barg)

.02, .06 and .20

performance, self relieving, pressure reducing regulator.

Materials:

Options:

Body/Spring chamber

316L SST Brass/6061 AL

Options:

Body/Spring chamber 316L SST

Relief Valve

DI/DI, BRZ/BRZ, CS/DI, BRZ/DI, CS/CS, SST/SST, SST/DI, SST/CS DI = Ductile Iron SST = Stainless Steel BRZ = Bronze CS = Carbon Steel

Packed Valve, Diaphragm Valve

Temperature range: -50° to +400°F, (-45° C to +204° C) Max Operating Pressure: 750 psig, (51 barg)

Brass/6061 AL

End connections:

FNPT, CGA End Connection

FNPT, Tube End, Tri-Clamp

MODEL SLR-2 Model SLR-2 is high performance, pressure loaded diaphragm-type, flow-to-open, non-relieving pressure reducing regulator. Design includes an internal pressure balancing piston-cylinder that provides high flow capacity and high pressure drop capability. Performance meets or exceeds that of competitive pressure loaded or pilot- operated designs. A non-relieving pressure regulator "loader" is bracket mounted to the top of the dome. The set point of the loader controls the upstream supply pressure into the dome to maintain the desired downstream pressure of the SLR-2. Pressure in the dome will constantly bleed out through a filter and check valve which is piped back into the outlet of the body of the pressure reducing regulator.

The Model SLR-2 is a high performance, non relieving, pressure reducing regulator.

MODEL P3 The Model P3 is a 2-stage regulator designed for gases with inlet pressures up to 3600 psig (248 Barg). Standard adjustable outlet ranges from 1-10 (.07-.69 Barg) thru 10-750 psig (.69-51.7 Barg). Flow coefficient of 0.02, 0.06, and 0.20 available. This versatile cylinder gas regulator can be ordered with a variety of options to meet your system demands. Standard construction includes a 40 micron integral filter, adjustment knob, and diffusion resistant stainless steel diaphragm. Gauges and CGA fitting are optional.

Body sizes:

End connections:

Body sizes:

Temperature range:

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

Standard: Female NPT ASME Flanged: 125#, 150#, 250#, 300#, 600# DIN Flanged: PN16, PN25, PN40

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

-45° to 575° F (-42.7° to 301° C)

Maximum Cv: 198 Body/Cover Dome Materials

Maximum Cv:

Pressures:

.02, .06 and .20

Max Inlet: 3,600 psig (248.2 Barg) Max Outlet: 1-500 psig (.07-34.5 Barg)

Materials:

DI/DI, BRZ/BRZ, CS/DI, BRZ/DI, CS/CS, SST/SST, SST/DI, SST/CS DI = Ductile Iron SST = Stainless Steel BRZ = Bronze CS = Carbon Steel

Body/Spring chamber

316L SST Brass/6061 AL

Options:

Temperature range: -50° to +400°F, (-45° C to +204° C) Max Operating Pressure: 3600 psig, (248 barg)

Packed Valve, Diaphragm Valve

The Model P3 is a two stage cylinder high gas pressure reducing regulator.

End connections:

FNPT, CGA End Connection

PRESSURE REDUCING REGULATORS

BACK PRESSURE REGULATORS

MODEL P4 The Model P4 is designed for gases with inlet pressures up to 3600 psig (248 Barg). Standard adjustable outlet ranges from 1-10 psig (.07-.69 Barg) through 10-500 psig (69- 34.4 Barg). Flow coefficient of .6 Cv available. This versatile point of use regulator can be ordered with a variety of options to meet your system demands. Standard construction includes a 40 micron integral filter, adjustment knob, and diffusion resistant stainless steel diaphragm.

BACK PRESSURE REGULATORS

MODEL P5 The Model P5 is a piston designed regulator for gases and liquids with inlet pressures up to 3600 psig (248 Barg). Flow coefficient of 0.06. This general purpose use regulator can be ordered with a variety of options to meet your system demands. Standard construction includes a 40 micron integral filter, adjustment knob, and diffusion resistant stainless steel diaphragm. Body size: 1/4", 3/8", 1/2" Maximum Cv: .06 Materials: Body/Spring chamber 316L SST End connections: NPT Temperature range: -55° to 300° F (-48° to 149° C) Pressures: Options:

Just as pressure reducing regulators respond to and control changes in outlet pressure, back pressure regulators respond to and control changes in inlet pressure. These regulators modulate the discharge rate

to maintain a constant pressure on the inlet side. However, back pressure regulators are not safety devices and must not be substituted for code- approved pressure safety relief valves or rupture discs.

The Model P4 is a balanced

pressure reducing regulator.

MODEL BQ

MODEL BR The Model BR is a versatile back-pressure regulator, available either in a globe style or angular porting configuration. Controlling inlet pressures up to 200 psig, it can be utilized in a majority of the general industrial pressure relief applications.

Max Inlet: 3,600 psig (248.2 Barg) Max Outlet: 50-1,500 psig (3.4-103 Barg)

Temperature range:

Body sizes: 3/8", 1/2" Maximum Cv: .6 Materials:

The Model BQ is designed for lower flow installations to control flow rates not covered by Model 123. It is often used in economizer circuits. It is also a popular cryogenic regulator and widely used in chemical process services.

-45° to 275° F (-42.7° to 135° C)

Mounting Bracket, Panel Mount

Pressures:

Max Inlet: 3,600 psig (248.2 Barg) Max Outlet: 1-500 psig (.69-34.4 Barg)

Options:

Body/Spring chamber

316L SST Brass/6061 AL

Relief Valve

The Model P5 is a piston designed reducing regulator.

End connections:

Temperature range: -325° F to +600° F, (-198° C to +315° C) Set pressures:

FNPT, Tube End, Tri-Clamp

Body sizes:

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

Body sizes:

Temperature range:

Materials: Body

3/8”, 1/2”, 3/4”, 1” 1-1/2”, 2”

-325° F to +400° F, (-198° C to +204° C)

DI, BRZ, CS, SST Spring chamber DI, BRZ, SST Trim BR, 316 SST Seat Metal-BR, SST –

Materials: Body

Set pressures:

Springs for 5-300 psig, (0.34 - 20 barg)

DI, BRZ, CS, 316 SST DI, BRZ, CS, 316 SST BRZ, 416 SST, 316 SST

Springs for 2-120 psig, (0.13 - 8 barg)

Spring Chamber

Pressure drop:

The Model BQ is for lower-flow and cryogenic applications.

Trim Seat

Up to 260 psid, (18 bard)

Up to 400 psid, (27 bard)

Composition-Buna-N, TFE, EPR, FKM Phos. BRZ, 302 SST, Neoprene, EPDM, Elgiloy

Metal - BR, SST, Composition- Buna-N, TFE, EPR, Neoprene Phos. BRZ, 302 SST, Neoprene, F.C. Elastomer, EPDM

Options:

Handwheel and locking lever, NACE Construction, Cleaned for O2 Service

MODEL P7 The Model P7 is a piston designed regulator that safely reduces inlet pressures of up to 4500 psig (310 Barg) and accurately delivers high gas flows throughout the 10-1500 psig (.69-103.4 Barg) range. This self-venting unit can be furnished as a non- venting regulator for hydraulic applications.

Closing cap, cryogenic construction, differential construction

Diaphragm

Body sizes: 1/2”, 3/4” Maximum Cv: 2.0 Materials:

Temperature range:

Diaphragm

-15° to 165° F (-25.0° to 75° C)

The Model P7 can handle pressure up to 4500 psig.

Pressures:

End connections:

NPT, BSP, Flanged, Extended Nipples, flanges in ASME or DIN

Max Inlet: 4500 psig (310.3 Barg) Max Outlet: 10-1500 (.69-103 Barg)

NPT, flanges in ASME or DIN

The Model BR is a flow thru, back pressure regulator with set pressures up to 200 psig.

Body/Spring chamber Brass/Brass or 316 SST/316 SST

Options:

Dome Loaded, Ratio Loaded, Panel Mount

End connections:

FNPT, 300#, 600#, 1500# Flanges in SST

BACK PRESSURE REGULATORS

MODEL 1164

MODEL 123 With five body materials and twenty-three trim material combinations, the Model 123 is compatible with most fluids. It can handle a wide range of flow and pressure settings to match nearly any back- pressure application up to a 2" line size. The regulator offers four composition seat materials and controlled compression with metal-to-metal back-up for long life and trouble-free operation.

Temperature range: -20° F to +400° F, (-29° C to +204° C) Set pressures:

Body sizes:

Temperature range:

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

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

-325° F to +450° F, (-198° C to +232° C)

Materials: Body

The Model 1164 back pressure regulator is equipped with a variety of body and trim materials that make it compatible with many fluids and chemicals. Its large orifice and diaphragm combine sensitivity with high capacity.

Materials: Body

Set pressures:

DI, BRZ, CS Spring chamber CI, BRZ, CS Trim

CI, BRZ, CS, LCC, 316 SST CI, BRZ, CS, LCC, 316 SST BRZ, 316 SST, 416 SST

Springs for 5-150 psig, (0.34 - 10 barg)

Springs for 2-350 psig, (0.13 - 24 barg)

Spring chamber

Pressure drop:

416 SST, 316 SST Metal – 316 SST Composition – TFE

Trim Seat

Up to 525 psid, (36 bard)

Pressure drop:

Seat

Metal – BR, 416 SST, 316 SST, Stellite Composition – Buna-N, TFE, EPR, F.C. Elastomer Phos. BRZ, 302 SST, Neoprene, F.C. Elastomer, EPDM, Buna N.

Options:

Up to 225 psid, (15 bard)

Closing cap, cryogenic construction, differential construction, NACE service

Diaphragm

Phos. BRZ, TFE-coated, 302 SST

End connections: NPT, BSP

Diaphragm

The Model 1164 is an economical back pressure regulator.

The Model 123 is a highly versatile, back pressure regulator.

End connections:

NPT, flanged, extended nipples, flanges in ASME or DIN

Body sizes: 1/2", 3/4" Materials: Body

Temperature range:

-20° F to +450° F, (-29° C to +232° C)

Set pressures:

MODEL 6987 This heavy-duty, angle-bodied back pressure regulator can handle high inlet and outlet pressures plus high pressure drops. Six range springs provide wide setpoint selection. Applications include fuel, oil, water, inert gases, air and chemicals.

MODEL 1171

CS, SST

Springs for 50-800 psig, (3 - 55 barg)

Body sizes: 3/8", 1/2" Materials: Body

Temperature range:

Pressure drop:

Spring chamber CS Trim

-325° F to +400° F, (-198° C to +204° C)

Up to 960 psid, (66 bard)

316 SST

The Model 1171 is a back pressure/relief regulator suitable for most liquid and gas applications including pump by-pass and modulating back pressure relief services.

Set pressures:

Options:

Seat

Metal – 316 SST, Stellite

Brass Spring chamber BRZ Trim BR Seat

Springs for 5-200 psig, (0.34 - 13 barg)

Closing cap, reduced orifice seats, differential and NACE

Diaphragm

302 SST

Pressure drop:

End connections: Standard

Up to 400 psid, (27 bard)

– NPT

Metal – BR Composition – TFE

Options:

Optional

– Flanged 300# or 600#, Plain End Pipe Nipples – Flanges in ASME or DIN

Inlet pressure gauge, panel mounting, cryogenic construction

Diaphragm

Phos. BRZ, Neoprene, FKM

End connections: NPT

The Model 1171 brass-bodied BPR is for low-flow general service.

The Model 6987 is a heavy-duty high-pressure back pressure regulator.

BACK PRESSURE REGULATORS

MODEL CA-2

MODEL 2171 Model 2171 is similar in design and capacity to its brass- bodied counterpart, but its SST body and trim enable it to handle an even wider range of fluids.

MODEL CA-1 & CA-2 Designed for lower flow applications. It is often used in small pump set applications as well as the cryogenic and compressed gas industry. Metal lapped seats allow for leakage rate to approach levels of composition seats.

Body sizes:

Temperature range:

Body sizes:

MODEL CA-1

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

-325° F to +400° F, (-198° C to +204° C)

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

Materials: Body

Set pressures:

Flow designs:

316L SST

Springs for 5-500 psig, (0.34 - 34 barg)

Globe, Angle, Flow-thru

Materials: Body

Spring chamber

316 SST, BRZ

Pressure drop:

Forged Bronze, 316 SST

Trim Seat

316 SST

Up to 600 psid, (41 bard)

Spring chamber

Bronze, 316 SST

Metal – 316 SST Composition – TFE 302 SST, Neoprene, TFE-coated, 302 SST, FL Elastomer

Options:

Model 2171 is a stainless steel low-flow back pressure- regulator.

Trim Seat

316 SST

Cryogenic construction, inlet pressure gauge, special pharmaceutical/food industry construction

Metal

Diaphragm

The Models CA-1 and CA-2 are compact forged bronze back pressure regulators.

Diaphragm

302 SST, Buna-N

End connections: NPT Temperature range:

End connections: NPT, flanged

-325° F to +300° F, (-198° to +149° C)

Set pressures: CA1 – springs for 2-400 psig, (0.14 - 27 barg) CA2 – springs for 3-610 psig, (0.2- 42 barg) Options: Closing Caps, Cryogenic, Handwheel and Panel Mounting

Body sizes:

Temperature range:

MODEL 8311HP & 8311LP When air and electric controls are not available, these reliable high-capacity regulators can be used in place of control valves. Dual-port construction makes these our highest-capacity back pressure regulators. Both models share the same basic design, differing only in diaphragm size.

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

-20° F to +450° F, (-29° C to +232° C)

MODEL 31-B

Body sizes:

End connections:

Materials: Body

Set pressures: 8311HP – springs for 10-145 psig, (0.69 - 10 barg) options 130-200 psig, (9 -13 barg) 8311LP – springs for 1-30 psig, (0.069 - 2 barg ) Pressure drop: Up to 260 psid, (18 bard) Options: Closing cap

1/2", 3/4", 1", 1-1/2" and 2" (20, 25, 40 and 50) NOTE: Inlet and outlet same size.

Standard: NPT Female Option-30: Weld-on 150# RF Flanges Option-32: Extended Plain End Nipples

CI, CS

The Model 31-B is a compact relief regulator designed expressly for use as a back pressure regulator or bypass valve for controlling inlet pressure between 2 and 16 inches - W.C. (mm H2O) range. Body is available in cast carbon steel or stainless steel materials only. Interior wetted trims for corrosive applications is standard.

Spring chamber

CI, DI, CS 316 SST

Trim Seat

Materials: Body

Temperature range:

Metal – 316 SST, Stellite

CS, SST Spring chamber CS, SST Trim 316 SST Seat

-30° F to 400° F, (-34° C to +204° C)

Diaphragm

302 SST, Neoprene, F.C. Elastomer

Set pressures:

Multiple springs covering 2.0" - 16.0" W.C. (50 - 400 mm H2O), (5 mbarg - 40 mbarg)

End connections: 1-1⁄2", 2"

The 31-B is a back pressure regulator that maintains set points as low as 2" W.C.

Buna-N, Silicone, TFE, FC. Elastomer Buna-N, F.C. Elastomer

– NPT, CI or CS

Options: NACE

The Models 8311HP and 8311LP are high-capacity regulators and ideal for remote installations.

All Sizes All Sizes

– 125#, 250# flange, CI – 150#, 300# flange, CS

Diaphragm

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