Pressure Regulators RHPS Series

Similar documents
Pressure Regulators K Series

Medium-Pressure Ball Valves

Medium-Pressure Ball Valves

Integral-Bonnet Needle Valves

Special Alloy Ball Valves

Swagelok Alternative Fuel Ser vice (AFS) Ball Valves

Medium-Pressure Ball Valves

Check Valves. C, CA, CH, CP, and CPA Series. Working pressures up to 6000 psig (413 bar) Adjustable and fixed cracking pressures

Stream Selector System For Process Analyzer Applications

Be llows-se aled Valve s

Instrument Manifold Systems

Tr unnion Ball Valve s

Swagelok Alternative Fuel Service (AFS) Ball Valves

Instrument Manifolds. V, VB, and VL Series. 2-, 3-, and 5-valve instrument manifolds

T205 Series Tank Blanketing Regulators

627 Series Pressure Reducing Regulators

High-Pressure Needle Valves

T205 Series Tank Blanketing Regulators

Stainless Steel Valves

Check Valves. C, CA, CH, CP, and CPA Series. Working pressures up to 6000 psig (413 bar) Adjustable and fixed cracking pressures

S, M, L, and 31 Series. Straight-pattern flow coefficients (C v ) from to Low- and high-pressure service

PFA Needle Valves. 4RP Series

Inline Adapters are Electro Polished to 10 Ra Max. 2 Valves supplied with Metal to Metal Face Seal connections have

Be llows-se aled Valve s

Toggle Valve s. OG, 1G, and 92 Series. Manual and pneumatically actuated models. Straight, angle, and cross body patterns

Check Valves. C, CA, CH, CP, and CPA Series. Working pressures up to 6000 psig (413 bar) Adjustable and fixed cracking pressures

Sample Probe Module. Application Guide

Stream Selector System

627 Series Pressure Reducing Regulators

High Capacity Direct Operated Pressure Reducing Valve. Features

627 Series Pressure Reducing Regulators

Bellows-Sealed Valves

Rising Plug Valves. 4P and 5P Series. Roddable, straight-through orifice for maximum flow. Working pressures up to 6000 psig (413 bar)

Bleed Valves and Purge Valves

JSRLP Series Low Pressure Reducing Valves for Bio-Pharm Gas Applications

Be llows-se aled Valve s

Diaphragm Valves. LD Series. Working pressures up to 300 psig (20.6 bar) Shutoff, bulk-gas distribution, and isolation service

Pressure Reducing, Differential and Back Pressure Regulating Valves Spring Loaded Dome Loaded Pilot Actuated

P627 High Flow Gas Regulator

MK508MM Series. Back Pressure Regulators Mark 508MM Self-Operated Back Pressure Regulators. Self-Operated Back Pressure Regulators.

Type MR108 Direct-Operated Backpressure Regulators

Trunnion Ball Valves. 83 Series and H83 Series. Working pressures up to psig (689 bar)

SERIES. CRYOGENIC/PRESSURE BUILD REGULATOR 3/8 and 1/2" NPT, BSPT Inlet 400 Psig (28 Bar) Description

SUBSEA VALVES

MK508UBS Series. Back Pressure Regulator MK508UBS. Threaded or Flanged Connections Carbon Steel, Stainless Steel & Alloy Construction.

Item Component Remarks Type 4393 Type ), SA Vulcanized soft seal disc SA L SA L

Flow Limit Safety Shutoff Valves Model 1

Springless Diaphragm Valves

Fluid Distribution Header

Pressure Control Valves

High CATALOG. Efficiency. Pilot Operated Safety Valves Series 810 Pop Action Series 820 Modulate Action. The-Safety-Valve.com

Direct-operated, Back Pressure Regulating Valve. Features

Mark 908 Series. Pressure Regulators Mark 908X Piloted Blanketing Regulators

OBSOLETE DOCUMENT. 167D Series Switching Valves. Bulletin 71.7:167D. Introduction. Features

Solution Partner. Leak - Proof Flow & Control. Check & Relief Valves. W e. s u p p o r t. t h e. i n n o v a t i o n s. o f.

Pressure Control Valves

Radial Diaphragm Valve

Modular Instrumentation System

Type 310A-32A Pressure Reducing Regulator

Bleed Valves and Purge Valves

Integral-Bonnet Needle Valves

Phone (toll-free): (888) Phone (local): (973) Fax: (973) Web:

Pressure Reducing, Differential and Back Pressure Regulating Valves Spring Loaded Dome Loaded Pilot Actuated

P627 High Flow Gas Regulator

General Utility Service Needle Valves

Mark 695 Series. Pressure Regulators Mark 695 Piloted Tank Blanketing Regulators. Piloted Tank Blanketing Regulator 3/4"- 1" Optional Features

VN Series Needle Valves

Type. Facts. Safety Relief Valves spring loaded. The-Safety-Valve.com. Metric Units LWN E

Type T205B Balanced Tank Blanketing Regulator

MR98 Series Backpressure Regulators, Relief and Differential Relief Valves

P627 High Flow Gas Regulator

Jordan Control Valve Series

Phone (toll-free): (888) Phone (local): (973) Fax: (973) Web:

Phone (toll-free): (888) Phone (local): (973) Fax: (973) Web:

Locked Bonnet Needle Valves

Product overview. Technical data

Trunnion Ball Valves. TB Series. Wide variety of end connection types and sizes. Flow Coefficient: up to 1.6

115 Series, Needle Valves, Single Block, Male x Male

Application: Sanitary Solutions

One-Piece Ball Valves. VB2GB, VB23GB Series

R627 High Flow Gas Regulator with Internal Relief

Stream Selector System

Fisher D4 Control Valve Assembly

MK608MM Series. Pressure Regulators Mark 608MM Self-Operated Pressure Regulator. Self-Operated Pressure Reducing Valve. Features

167D Series Switching Valves

Type SR8 Sanitary Backpressure Regulator

Solution Partner. Leak - Proof Flow & Control. Check & Relief Valves. W e. s u p p o r t. t h e. i n n o v a t i o n s. o f.

Plug Valves. P4T and P6T Series. Working pressures up to 3000 psig (206 bar) Swagelok tube fitting and NPT and ISO tapered pipe end connections

One-Piece Instrumentation Ball Valves

FLOW CONTROLLERS Instrument/Analyzer Products. Catalog 4513/USA April 2003

JRPH/JRPL Series. Pressure Reducing Valves. a division of Jordan Valve PRESSURE REDUCING VALVE JRPH & JRPL SERIES FLOW CONFIGURATIONS

CP400 Series Commercial/Industrial Pressure Loaded Pressure Reducing Regulators

Type MR108 Direct-Operated Backpressure Regulators

ANDERSON GREENWOOD SERIES 500 PILOT OPERATED SAFETY RELIEF VALVES INSTALLATION AND MAINTENANCE INSTRUCTIONS

BIRKETT SAFESET SERIES PILOT OPERATED SAFETY RELIEF VALVES

Fisher YD and YS Control Valves

JSBLF Series Compact, High Purity Low Flow Back Pressure Regulating Valve

Solution Partner. Leak - Proof. Flow & Control. Ball Valves SBV10 SBV30 SBV60 SFBV60. W e. s u p p o r t. t h e

Toggle Valves. OG, 1G, and 92 Series. Manual and pneumatically actuated models. Straight, angle, and cross body patterns

G4 Series. ...Extremely sensitive and accurate PILOT OPERATED PRESSURE REDUCING VALVES PRESSURE EQUIPMENT DIRECTIVE (PED) Adjusting Screw

Transcription:

Pressure Regulators Series 1 www.swagelok.com Pressure Regulators Series Pressure-reducing models Back-pressure models Spring-, dome-, and air-loaded 1/4 to 4 in. end connections Working pressures up to 1 15 psig (7 bar) Temperatures from 4 to 176 F ( 2 to 8 C)

2 Pressure Regulators and Filters Contents Features, 4 Types of Regulators, 5 Terminology, 5 Components, 6 Testing, 7 Cleaning and Packaging, 7 Pressure-Reducing Regulators Spring-Loaded RS Series, 8 Compact, General-Purpose RS(H)2 Series, 1 Pressure-Reducing Regulators Dome-Loaded RD Series, 42 Compact, General-Purpose RD2 Series, 44 General-Purpose RS(H)4, 6, 8 Series, 14 General-Purpose RD(H)6, 8 Series, 48 General-Purpose RS(H)1, 15, 2 Series, 22 Differential RD(H)6DP Series, 53 High-Sensitivity LRS(H)4 Series, 29 High-Sensitivity LPRS4, 6, 8 Series, 33 Integral Pilot-Operated RD(H)1, 15 Series, 57 High-Sensitivity LPRS1, 15 Series, 38 Integral Pilot-Operated RD(H)2, 25 Series, 7

Pressure-Reducing Regulators Dome-Loaded RD Series Back-Pressure Regulators Spring-Loaded BS Series, 15 Compact, General-Purpose BS(H)2 Series, 17 Pressure Regulators Series 3 Back-Pressure Regulators Dome-Loaded BD Series Contact your authorized Swagelok sales and service representative for information about dome-loaded, backpressure regulators. Integral Pilot-Operated RD(H)3, 4 Series, 82 General-Purpose BS(H)4, 6, 8 Series, 111 General-Purpose BS(H)1, 15 Series, 116 High-Sensitivity LBS4 Series, 122 Integral Pilot-Operated, High-Sensitivity LPRD2, 25, 3, 4 Series, 97 Air-Loaded RA4, 6, 8 Series, 99

4 Pressure Regulators and Filters Features Regulator Adjusting Screw Fine pitched threads provide improved adjustability and resolution when setting or adjusting pressure. Set-Pressure Spring provides pressure control across a wide range of flow rates long spring improves droop performance. Diaphragm Sensing Mechanism typically used in low outlet pressure applications provides greater accuracy in sensing changes in outlet pressure available in PTFE and a variety of elastomers designed with a short stroke to maximize cycle life. Threaded Vent allows monitoring of the diaphragm or piston sensing mechanism. WARNING: Threaded-vent regulators can release system fluid to atmosphere. Position the threaded vent connection away from operating personnel. Bottom Spring Guide engages diaphragm to distribute forces evenly protects diaphragm from premature failure. Diaphragm Support Plate promotes diaphragm life. Inlet Outlet Seal Materials available in a variety of materials for enhanced chemical compatibility in a wide range of applications. Body Material 316L SS for improved corrosion resistance. Piston Sensing Mechanism typically used to regulate higher pressures than a diaphragm sensing mechanism more resistant to damage caused by pressure spikes designed with a short stroke to maximize cycle life. Piston Piston plate Seat Seal Materials available in PCTFE, PEEK, and a variety of elastomers. Balanced Poppet Design reduces supply-pressure effect and lockup. Body Plug allows for easy maintenance and more up-time.

Pressure Regulators Series 5 Types of Regulators There are two types of series pressure regulators Pressure-reducing regulators with spring or dome loading Back-pressure regulators with spring or dome loading How a Pressure Regulator Works A pressure regulator has a sensing element (piston or diaphragm) which, on one side, is subjected to a load force (F S ) created by a spring (as shown below) or a gas pressure. On the other side, the sensing element is subject to the force (F) of the system fluid. Pressure-Reducing Regulators F S Back-Pressure Regulators F S F F Outlet Inlet Inlet Outlet Inlet pressure Outlet pressure F S = Spring force F = Fluid force / outlet pressure Inlet pressure Outlet pressure F S = Spring force F = Fluid force / outlet pressure Pressure reducing std The function of a pressure-reducing regulator is to reduce a pressure and to keep this pressure as constant as possible while the inlet pressure and the flow may vary. This is accomplished by the fluid force (F) being equal to or slightly lower than load force (F S ) causing the poppet to open. The function of a back-pressure regulator is to keep inlet Go Gi Go pressure below a set pressure. This means the regulator can either open in case of excess pressure or close when the pressure drops below a desired pressure. This is accomplished by the fluid force (F) being equal to or slightly lower than load force (F S ) causing the poppet to close. Go Gi std Back Pressure Terminology Accumulation an increase in inlet pressure caused by an increase in flow rate to a back-pressure regulator. Creep an increase in outlet pressure typically caused by regulator seat leakage. Dependency see supply pressure effect (SPE). Droop a decrease in outlet pressure caused by an increase in flow rate to a pressure-reducing regulator. Lockup an increase in outlet pressure that occurs as the flow rate is decreased to zero. Self-venting a feature that reduces outlet pressure in a pressure-reducing regulator when the regulator set point is decreased and there is no flow through the regulator. Sensitivity the degree to which the regulator responds to force balance changes. Set pressure the desired outlet pressure of a pressurereducing regulator, normally stated at a no-flow condition. Supply pressure effect (SPE) the effect on the set Gi Gi Go pressure of a pressure-reducing regulator as a result of a change in inlet pressure, normally experienced as an increase in outlet pressure due to a decrease in inlet pressure. Also known as Dependency. Threaded vent a connection that allows monitoring of the diaphragm or piston sensing mechanism. Gi Go Gi Gauge Connection Configuration Symbols Inlet G i = Inlet gauge std Outlet G o = Outlet gauge Gauge Connection Configurations Pressure-Reducing Regulators Standard GN2 GN4 GN5 Go Gi Go Pressure reducing Go Go Gi Gi Gi Go Gi Gi Go std Back Pressure

6 Pressure Regulators and Filters Components Every series pressure regulator has three common design components: Loading mechanism (spring, dome, or combination spring and dome) Sensing mechanism (diaphragm or piston) Controlling mechanism (poppet) Loading Mechanism The loading mechanism is the component of the regulator that balances the force or pressure. Spring-Loaded In a spring-loaded regulator, a coil spring is used to generate a load (F S ) against the sensing mechanism. The amount of spring force or load can be adjusted by turning the handle or adjusting screw of the regulator. Closed F S Dome-Loaded In a dome-loaded regulator, a gas is fed into the dome chamber above the sensing mechanism at a pressure equal to or slightly above the required outlet pressure. This volume of gas is used like a spring. The dome pressure (F d ) is typically supplied by a second regulator called a pilot regulator. F d F S or F d F F P outlet F P outlet P inlet P inlet Open F S F d F S or F d > F F P outlet F P outlet P inlet P inlet Combination Spring- and Dome-Loaded The spring- and dome-loaded mechanisms can be used in combination with one another. The resulting effect provides the function of a differential pressure regulator. This regulator is designed to control pressure which is the sum of a reference pressure (provided by the dome) and a bias pressure (provided by the spring). See RD(H)6DP series on page 53 for details.

Pressure Regulators Series 7 Components Sensing Mechanisms The sensing mechanism is the component separating the spring/dome force and the fluid force. It senses changes in pressure and allows the regulator to react and to try to restore the original set pressure. Diaphragm Sensing The diaphragm is a large, flat piece of material usually made of an elastomer, PTFE, or metal depending on the application. A diaphragm is normally used for low control-pressure applications in spring-loaded regulators and in all domeloaded regulators. Piston Sensing A piston is a cylindrical metal component which is generally used to regulate higher control pressures than a spring-loaded regulator with a diaphragm. They are also more resistant to damage caused by pressure spikes. Controlling Mechanisms The controlling mechanism, also known as a poppet, acts to reduce a high inlet pressure to a lower outlet pressure. There are two designs used in regulators. Balanced Poppet In a balanced poppet design, the area on which the inlet pressure acts is reduced due to the orifice through the poppet and balancing O ring. The advantages of this design are a reduced seat load, less sensitivity to SPE, and the ability to have a larger seat for more flow. Unbalanced Poppet In an unbalanced poppet design, the inlet pressure provides the majority of the shutoff force. Unbalanced poppets are generally used in small regulators or larger regulators in low-pressure applications. Inlet Inlet Orifice Diaphragm Piston O-ring Outlet Outlet Seat Design The poppet within the series regulator can have a hard or soft seat seal depending on the pressure requirements of the application. Soft Seat Seal A soft seat seal is designed to regulate pressures up to 115 psig (7. bar). The seat seal materials are generally elastomeric, and include fluorocarbon FKM, perfluorocarbon FFKM, nitrile, and EPDM. Hard Seat Seal A hard seat seal is designed to regulate pressures up to 1 15 psig (7 bar). The seat seal materials are PCTFE for pressures up to 58 psig (4 bar) and PEEK for pressures up to 1 15 psig (7 bar). Testing Every series regulator is factory tested with nitrogen or air. Shell testing is performed to a requirement of no detectable leakage with a liquid leak detector. Cleaning and Packaging Every series regulator is cleaned and packaged in accordance with Swagelok Standard Cleaning and Packaging (SC-1), MS-6-62. Cleaning and packaging to ensure compliance with product cleanliness requirements stated in ASTM G93 Level C is available. Oxygen Service Hazards For more information about hazards and risks of oxygenenriched systems, see the Swagelok Oxygen System Safety technical report, MS-6-13. Seat seal Seat seal series pressure regulators are not Safety Accessories as defined in the Pressure Equipment Directive 214/68/EU. Do not use the regulator as a shutoff device. WARNING: Self-venting and threaded-vent regulators can release system fluid to atmosphere. Position the self-vent hole or the threaded vent connection away from operating personnel.

8 Pressure Regulators and Filters Pressure-Reducing, Spring-Loaded Regulators RS Series The RS series pressure-reducing regulators are suitable for most gases and liquids. The RS series regulators feature various poppet designs, a choice of sensing types (diaphragm or piston), and seat and seal materials to accommodate a variety of pressure, temperature, and flow conditions. The RS series regulators are available in sizes from 1/4 to 2 in. with a choice of threaded or flange end connections. The RSH series regulators are a high-pressure version of the RS series regulators, and the LRS and LPRS series are lowpressure, high-accuracy versions of the RS series regulators. The RS series regulators are available with many options, including a variety of gauge connection configurations, self venting, internal filter, external feedback, antitamper, special cleaning to ASTM G93 Level C, and NACE MR175/ ISO 15156-compliant models. Features Spring-loaded pressure control Diaphragm or piston sensing mechanisms Red knob handle or screw adjustment 316L stainless steel materials of construction for corrosion resistance Maximum inlet pressure ratings: 232 to 1 15 psig (16. to 7 bar) Pressure control ranges: Up to to 1 15 psig ( to 7 bar) Pressure-Temperature Ratings Seat Seal / O-Ring Material PCTFE➀➁ PEEK➀➁ Series Temperature F ( C) RS2 RSH4, 6, 8 RSH1 RSH15 RSH2 LRSH4 4 ( 2) to 95 (35) 58 (4) 149 (65) 3987 (275) 176 (8) 1812 (125) RS2, RSH4, 6, 8 RSH1, RSH15, RSH2 LRSH4 RSH2 Fluorocarbon FKM➀, Nitrile, EPDM, FFKM➁ RS4, 6, 8 RS1 RS15 RS2 LRS4 Maximum Inlet Pressure / Working Pressure psig (bar) LPRS4 LPRS6 LPRS8 LPRS1 LPRS15 58 (4) 1 15 (7) 115 (7.) 57 (35.) 232 (16.) ➀ Regulators (including high-pressure models) built with fluorocarbon FKM seat seals, diaphragms, or O-ring seals, are limited to 5 F ( 15 C). ➁ Regulators (including high-pressure models) built with FFKM seat seals, diaphragms, or O-ring seals, are limited to 14 F ( 1 C). Technical Data Performance RS(H)2 Series Maximum Inlet Pressure➀ psig (bar) Maximum Outlet Control Pressure➀ psig (bar) Flow Coefficient (C v ) Sensing Type Flow Data on Page RS2 5 8 (4) 5 75 (35) RSH2 1 15 (7) 1 15 (7).5 Piston 11 RS(H)4, 6, 8 RS4 1 15 (7.) 46 (28.) diaphragm RSH4 5 8 (4) 5 8 (4) piston 1.84 Diaphragm or piston 15 RS6 1 15 (7.) 23 (14.) diaphragm RSH6 5 8 (4) 5 8 (4) piston 1.95 Diaphragm or piston 17 RS(H)1, 15, 2 RS8 1 15 (7.) 23 (14.) diaphragm RSH8 5 8 (4) 5 8 (4) piston RS1 1 15 (7.) 29 (2.) diaphragm RSH1 5 8 (4) 3 625 (25) piston 2.7 3.79 Diaphragm or piston Diaphragm or piston 2 23 LPRS4, 6, 8 LRS(H)4 RS15 1 15 (7.) 29 (2.) diaphragm RSH15 5 8 (4) 3 625 (25) piston RS2 1 15 (7.) RSH2 5 8 (4) 7.3 Diaphragm or piston 29 (2.) 13 Diaphragm LRS4 57 (35.).73 3 29 (2.) Diaphragm LRSH4 5 8 (4).1 31 LPRS4 1.84 LPRS6 232 (16.) 43 (3.) 1.95 LPRS8 2.7 Diaphragm LPRS1 3.79 39 232 (16.) 43 (3.) Diaphragm LPRS15 7.3 39 ➀ For regulators built with flanged connections, pressure may be limited by flange class rating. LPRS1, 15

Pressure Regulators Series 9 Pressure-Reducing, Spring-Loaded Regulators RS Series RS Series Regulator with Diaphragm Sensing and Standard Knob Handle RSH Series Regulator with Piston Sensing and Antitamper Option Soft seat design for low-pressure applications Hard seat design for high-pressure applications Inlet Outlet Inlet Outlet Technical Data Design Series RS2 RSH2 RS4 RSH4 RS6 RSH6 RS8 RSH8 RS1.55 (14.) RSH1.53 (13.5) RS15 RSH15 RS2 RSH2 LRS4.23 (6.) LRSH4.87 (2.2) LPRS4 Seat Diameter in. (mm) Inlet and Outlet Connections Gauge Connection Weight (Without Flanges) lb (kg) More Information on Page.87 (2.2) 1/4 in. NPT 1/4 in. NPT 3.3 (1.5) 1.39 (1.) 1/2 in. NPT, ISO/BSP parallel thread, EN or ASME flanges 1/4 in. NPT 7.7 (3.5) 14.39 (1.) 3/4 in. NPT, ISO/BSP parallel thread, EN or ASME flanges 1/4 in. NPT 9.9 (4.5) 14.39 (1.) 1 in. NPT, ISO/BSP parallel thread, EN or ASME flanges 1/4 in. NPT 9.9 (4.5) 14 1 in. NPT, ISO/BSP parallel thread, EN or ASME flanges.75 (19.) 1 1/2 in. NPT, ISO/BSP parallel thread, EN or ASME flanges 1/4 in. NPT or ISO/BSP parallel thread 1/4 in. NPT or ISO/BSP parallel thread 16.5 (7.5) 22 22. (1.) 22.98 (25.) 2 in. NPT, ISO/BSP parallel thread, EN or ASME flanges ISO/BSP parallel thread 39.6 (18.) 22 1/2 in. NPT 1/4 in. NPT 5.7 (2.6) 29 1/2 in. NPT, ISO/BSP parallel thread, EN or ASME flanges 11. (5.) LPRS6.39 (1.) 3/4 in. NPT, ISO/BSP parallel thread, EN or ASME flanges 1/4 in. NPT 12.1 (5.5) LPRS8 1 in. NPT, ISO/BSP parallel thread, EN or ASME flanges 12.1 (5.5) LPRS1.55 (14.) 1 in. NPT, ISO/BSP parallel thread, EN or ASME flange 1/4 in. NPT or 17.6 (8.) LPRS15.75 (19.) 1 1/2 in. NPT, ISO/BSP parallel thread, EN or ASME flanges ISO/BSP parallel thread 22. (1.) 33 38

1 Pressure Regulators and Filters Compact, General-Purpose, Spring-Loaded Pressure-Reducing Regulators RS(H)2 Series Features Bottom mounting Sealed spring housing Low-friction piston for better control Cartridge poppet assembly with 25 μm filter for ease of service Self-venting Threaded vent below panel for safety Options No filter for liquid applications NACE MR175/ISO 15156-compliant models (nonventing and no-filter models only) Nonventing Special cleaning to ASTM G93 Level C Panel mounting kit sold separately no disassembly required Technical Data Series Maximum Inlet Pressure psig (bar) Maximum Outlet Control Pressure psig (bar) Sensing Type Temperature Range F ( C) Flow Coefficient (C v ) Seat Diameter in. (mm) Inlet and Outlet Connections Gauge / Vent Connections Weight lb (kg) RS2 5 8 (4) 5 75 (35) RSH2 1 15 (7) 1 15 (7) Piston 4 to 176 ( 2 to 8) See Pressure- Temperature Ratings, page 8..5.87 (2.2) 1/4 in. NPT Gauge: 1/4 in. NPT Vent: 1/8 in. NPT 3.3 (1.5) See pages 11 to 12 for flow data. Materials of Construction 9 14 17 9 18 19 RS2 Series Regulator with Cartridge Poppet Design 1 2 3 4 5 6 7 8 9 1 11 12 13 15 16 Component 1 Knob assembly with adjusting screw, nuts, washer Material / Specification Red ABS with 431 SS 2 Spring housing cover 431 SS / A276 3 Spring housing 316L SS / A479 4 C-ring A2 5 Spring guide 316L SS / A479 6 Set spring 5CRV4 7 Bottom spring guide 316L SS / A479 8 Relief seat PEEK or PCTFE 9 O-rings EPDM, FKM, FFKM, or nitrile 1 Poppet housing 316L SS / A479 11 Seat PEEK or PCTFE 12 Poppet S174 SS or 431 SS 13 Seat retainer 14 Piston plate 316L SS / A479 15 Filter 316L SS 16 Plug 17 Piston 316L SS / A479 18 Poppet spring 32 SS / A313 19 Body 316L SS / A479 Wetted lubricants: Silicone-based and synthetic hydrocarbon-based Wetted components listed in italics. Gauge plugs (not shown): 431 SS / A276.

Pressure Regulators Series 11 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RS2 Series Flow Coefficient:.5 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 362 psig ( to 25. bar) to 362 psig ( to 25. bar) to 145 psig ( to 1. bar) 4 35 5 1 15 2 25 25 3 25 2 15 1 5 725 (5.) 115 (7.) 58 (4.) 115 (7.) 29 (2), 58 (4) 29 (2), 58 (4) 58 (4.) 115 (7.) 3 6 9 12 15 18 29 (2) 58 (4) 2 15 1 5. RS2 Series Flow Coefficient:.5 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 575 psig ( to 35 bar) to 575 psig ( to 35 bar) to 2537 psig ( to 175 bar) 6 75 15 225 3 375 45 to 145 psig ( to 1 bar) 36 48 3 36 24 29 (2) 58 (4) 58 (4) 24 18 12 12 29 (2) 58 (4) 6 115 (7.) 29 (2) 58 (4) 6 12 18 24 3

12 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RSH2 Series Flow Coefficient:.5 Maximum Inlet Pressure: 1 15 psig (7 bar) Outlet : to 1 15 psig ( to 7 bar) to 1 15 psig ( to 7 bar) 2 4 6 8 1 1 65 8 1 15 (7) 52 6 4 1 15 (7) 1 15 (7) 39 26 2 13 1 2 3 4 5 6 7

Pressure Regulators Series 13 Dimensions Dimensions, in inches (millimeters), are for reference only and are subject to change. Inlet gauge connection Configuration Top Outlet gauge connection Cartridge Poppet Assembly Detail Cartridge housing O-ring Seat retainer Seat seal Poppet Filter, 25 µm Inlet Outlet Shown with tubing for clarity; tubing not included. Plug Poppet spring Threaded vent connection 5.83 (148) 2.28 (58.) Bottom Mounting.87 (22.) Threaded vent connection.67 (17.) 1.26 (32.) 2 mounting holes M5,.2 (5.) deep 2.15 (54.5) RS2 2.3 (58.5) RSH2 2 gauge connections Venting Self-venting is standard. Threaded vent connection is below panel for safety A nonventing option is available. WARNING: Selfventing regulators can release system fluid to atmosphere. Position the self-vent hole away from operating personnel. Panel Mounting Kit No disassembly required when using panel mount kit. Panel mounting kit ordering numbers: RS2 series: RS2-P-2 RSH2 series: RSH2-P-2 2.76 (7.) * *RS: 2.15 (54.5) *RSH: 2.36 (6.) Panel hole 2 holes,.22 (5.5) A 3.13 (79.5) 2.36 (6.) Panel ring A Ordering Information Build an RS2 or RSH2 series regulator ordering number by combining the designators in the sequence shown below. 1 2 3 4 5 6 7 8 RS N2-2 - 1 - V V K - LNV 1 Series RS = 58 psig (4 bar) maximum inlet pressure RSH = 1 15 psig (7 bar) maximum inlet pressure 2 Inlet / Outlet N2 = 1/4 in. female NPT 3 Body Material 2 = 316L SS 4 RS and RSH series 1 = to 145 psig ( to 1. bar) 2 = to 362 psig ( to 25. bar) 3 = to 145 psig ( to 1 bar) 4 = to 2537 psig ( to 175 bar) 5 = to 575 psig ( to 35 bar) RSH series only 6 = to 1 15 psig ( to 7 bar) 5 Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM F = FFKM 6 Piston Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM F = FFKM 7 Seat Seal Material K = PCTFE (RS) P = PEEK (RS and RSH) 8 Options L = No filter N = NACE MR175/ISO 15156 NV = Nonventing G93 = ASTM G93 Level C-cleaned

14 Pressure Regulators and Filters General-Purpose, Spring-Loaded Pressure-Reducing Regulators RS(H)4, RS(H)6, and RS(H)8 Series Features Balanced poppet design Diaphragm or piston sensing Threaded vent to monitor sensing seal integrity Options Antitamper Gauge connections choice of 4 configurations NACE MR175/ISO 15156-compliant models Self-venting Special cleaning to ASTM G93 Level C Technical Data Series Maximum Inlet Pressure psig (bar) Maximum Outlet Control Pressure psig (bar) Sensing Type Temperature Range F ( C) Flow Coefficient (C v ) Diaphragm: 4 to 176 RS(H)4 RS4: to ( 2 to 8) 1.84 RS: RS: 46 psig (28. bar) 115 (7.) 46 (28.) See RS(H)6 RS6, 8: to Pressure- 1.95 RSH: RSH: 23 psig (14. bar) Temperature 58 (4) 58 (4) Piston: to RS(H)8 Ratings, 2.7 58 psig (4 bar) page 8. See pages 15 to 2 for flow data. Seat Diameter in. (mm).39 (1.) Connections Inlet and Outlet Size 1/2 in. DN15 3/4 in. DN2 1 in. DN25 Type NPT ISO/BSP parallel thread ASME or EN flange Gauge and Vent Gauge: 1/4 in. NPT Vent: 1/8 in. ISO/BSP parallel thread Weight (Without Flanges) lb (kg) 7.7 (3.5) 9.9 (4.5) Materials of Construction 14 16 17 2 21 22 RS Series Regulator with Diaphragm Sensing and Standard Knob 1 2 3 4 5 6 7 8 9 1 11 1 12 13 RSH Series Regulator with Piston Sensing and Antitamper Option 15 18 19 11 1 23 24 11 Common Components Actuation Sensing Mechanism RS Only RSH Only Component 1 Spring housing 2 Spring guide Wetted components listed in italics. Gauge plugs (not shown): 431 SS / A276. Material / Specification 316L SS / A479 3 Ball 42 SS (Hardened) 4 Set spring 32 SS / A313 5 Cap screw A4-8 6 Washer A4 7 Bottom spring guide 8 Body 9 Poppet RS RSH 316L SS / A479 316L SS / A479 S174 SS / A276 or 431 SS 1 O-rings EPDM, FKM, or nitrile 11 Backup ring PTFE 12 Poppet spring 32 SS / A313 13 Body plug 316L SS / A479 14 Knob assembly with adjusting screw, nuts, washers 15 Antitamper option with O-ring, set screw Diaphragm Only Red ABS with A2-7 316L SS and A2-7 (O-ring same as item 1) 16 Diaphragm EPDM, FKM, or nitrile 17 Diaphragm plate 316L SS / A479 18 Piston 19 Piston plate 2 Seat Piston Only 316L SS / A479 21 Seat seal EPDM, FKM, or nitrile 22 Poppet housing 23 Seat 316L SS / A479 24 Seat seal PEEK or PCTFE Wetted lubricant: Silicone-based, synthetic hydrocarbon-based

Pressure Regulators Series 15 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RS4 Series Flow Coefficient: 1.84 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 46 psig ( to 28. bar) to 46 psig ( to 28. bar) to 23 psig ( to 14. bar) to 11 psig ( to 7. bar) to 43 psig ( to 3. bar) 1 2 3 4 5 6 7 4 3 2 115 (7.) 58 (4.) 115 (7.) 58 (4.) 8. 1 115 (7.) 58 (4.) 218 (15.) 4. 115 (7.) 115 (7.) 218 (15.) 58 (4.) 218 (15.) 58 (4.) 75 15 225 3 375 45 24 2 16 12 RS(H)4 Series Flow Coefficient: 1.84 Maximum Inlet Pressure: RS4 115 psig (7. bar); RSH4 58 psig (4 bar) Outlet : to 116 psig ( to 8. bar) to 116 psig ( to 8. bar) to 58 psig ( to 4. bar) 3 1 6 9 12 15 18 to 46 psig ( to 28. bar) 6 8 5 6 4 2 115 (7.) 58 (4.) 58 (4.) 115 (7.) 115 (7.) 115 (7.) 4 3 2 1 2 4 6 8 1 12

16 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RSH4 Series Flow Coefficient: 1.84 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 58 psig ( to 4 bar) to 58 psig ( to 4 bar) to 46 psig ( to 28 bar) to 2175 psig ( to 15 bar) 3 6 9 12 15 6 5 36 3 4 3 2 58 (4) 58 (4) 24 18 12 1 29 (2) 58 (4) 6 2 4 6 8 1

Pressure Regulators Series 17 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RS6 Series Flow Coefficient: 1.95 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 46 psig ( to 28. bar) to 46 psig ( to 28. bar) to 23 psig ( to 14. bar) to 11 psig ( to 7. bar) to 43 psig ( to 3. bar) 4 2 4 6 8 1 12 24 3 2 1 218 (15.) 115 (7.) 58 (4.) 115 (7.) 58 (4.) 115 (7.) 58 (4.) 2 16 12 8. 218 (15.) 115 (7.) 4. 58 (4.) 218 (15.) 58 (4.) 115 (7.) 1 2 3 4 5 6 7 8 RS(H)6 Series Flow Coefficient: 1.95 Maximum Inlet Pressure: RS6 115 psig (7. bar); RSH6 58 psig (4 bar) Outlet : to 116 psig ( to 8. bar) to 116 psig ( to 8. bar) to 58 psig ( to 4. bar) 3 1 6 9 12 15 18 to 46 psig ( to 28. bar) 6 8 5 6 4 2 58 (4.) 115 (7.) 58 (4.) 115 (7.) 115 (7.) 115 (7.) 4 3 2 1 2 4 6 8 1 12

18 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RSH6 Series Flow Coefficient: 1.95 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 58 psig ( to 4 bar) to 58 psig ( to 4 bar) to 46 psig ( to 28 bar) to 2175 psig ( to 15 bar) 3 6 9 12 15 6 5 36 4 3 2 58 (4) 58 (4) 3 24 18 12 1 29 (2) 58 (4) 6 2 4 6 8 1

Pressure Regulators Series 19 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RS8 Series Flow Coefficient: 2.7 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 46 psig ( to 28. bar) to 46 psig ( to 28. bar) to 23 psig ( to 14. bar) to 11 psig ( to 7. bar) to 43 psig ( to 3. bar) 4 3 6 9 12 15 24 3 2 1 218 (15.) 58 (4.) 58 (4.) 115 (7.) 115 (7.) 115 (7.) 115 (7.) 58 (4.) 4. 218 (15.) 58 (4.) 58 (4.) 115 (7.) 218 (15.) 2 4 6 8 1 2 16 12 8. RS(H)8 Series Flow Coefficient: 2.7 Maximum Inlet Pressure: RS8 115 psig (7. bar); RSH8 58 psig (4 bar) Outlet : to 116 psig ( to 8. bar) to 116 psig ( to 8. bar) to 58 psig ( to 4. bar) 4 1 8 12 16 2 6 8 5 6 4 2 58 (4.) 115 (7.) 58 (4.) 115 (7.) 115 (7.) 115 (7.) 4 3 2 1 2 4 6 8 1 12 14

2 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RSH8 Series Flow Coefficient: 2.7 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 58 psig ( to 4 bar) to 58 psig ( to 4 bar) to 46 psig ( to 28 bar) to 2175 psig ( to 15 bar) 3 6 9 12 15 6 5 36 4 3 2 58 (4) 58 (4) 3 24 18 12 1 29 (2) 58 (4) 6 2 4 6 8 1

Pressure Regulators Series 21 Dimensions Dimensions, in inches (millimeters), are for reference only and are subject to change. Series End Connection Size Dimensions, in. (mm) A B C D E RS(H)4 1/2 in. 9.6 (23) 2.83 (72.) 3.7 (78.) 2.9 (53.) 3.62 (92.) RS(H)6 3/4 in. 9.25 (235) 3.23 (82.) 3.5 (89.) 2.2 (56.) 3.94 (1) RS(H)8 1 in. 9.25 (235) 3.7 (78.) 3.5 (89.) 2.2 (56.) 3.94 (1) 2.72 (69.2) 4 mounting holes, M6 thread Inlet Panel Mounting RS(H)4 only Outlet gauge connection Outlet 1.1 (28.) 1.1 (28.) Inlet Configuration Top Outlet gauge connection Outlet Gauge connection Outlet Inlet A Threaded vent connection D E.67 (17.).67 (17.) B C Shown with tubing for clarity; tubing not included. Ordering Information Build an RS(H)4, RS(H)6, and RS(H)8 series regulator ordering number by combining the designators in the sequence shown below. 1 2 3 4 5 6 7 8 9 1 11 RS FA 4 A 1-2 - 1 - V V V - GN2 1 Series RS = 115 psig (7. bar) maximum inlet pressure RSH = 58 psig (4 bar) maximum inlet pressure 2 Inlet / Outlet B = Female ISO/BSP parallel thread N = Female NPT FA = ASME B16.5 flange FD = EN 192 (DIN) flange 3 Size 4 = 1/2 in. / DN15 6 = 3/4 in. / DN2 8 = 1 in. / DN25 4Pressure Class Omit designator if flanges are not ordered. A = ASME class 15 B = ASME class 3 C = ASME class 6 E = ASME class 15 F = ASME class 25 M = EN class PN16 N = EN class PN4 5Flange Facing Omit designator if flanges are not ordered. 1 = Raised face smooth 3 = RTJ 6 Body Material 2 = 316L SS 7 Diaphragm sensing 1 = to 43 psig ( to 3. bar) 2 = to 11 psig ( to 7. bar) 3 = to 23 psig ( to 14. bar) 4 = to 46 psig ( to 28. bar)➀ Piston sensing 4 = to 46 psig ( to 28. bar)➁ 5 = to 58 psig ( to 4. bar) 6 = to 116 psig ( to 8. bar) 7 = to 2175 psig ( to 15 bar) 9 = to 46 psig ( to 28 bar) 11 = to 58 psig ( to 4 bar) ➀ RS(H)4 series only. ➁ RS(H)6 and RS(H)8 series only. 8 Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM 9 Diaphragm / Piston O-Rings V = Fluorocarbon FKM N = Nitrile E = EPDM 1 Seat Seal Material RS series V = Fluorocarbon FKM N = Nitrile E = EPDM RSH series K = PCTFE P = PEEK 11 Options A = Antitamper GN2 = Gauge connection, see below GN4 = Gauge connection, see below GN5 = Gauge connection, see below None = Standard connection, see below Gauge Connection Configuration Standard GN2 GN4 GN5 Go Gi Go Go Go Gi N = NACE MR175/ISO 15156 S = Self-venting (with 1/8 in. NPT) G93 = ASTM G93 Level C-cleaned

22 Pressure Regulators and Filters General-Purpose, Spring-Loaded Pressure-Reducing Regulators RS(H)1, RS(H)15, and RS(H)2 Series Features Balanced poppet design RS(H)1 and RS(H)15 diaphragm or piston sensing RS(H)2 diaphragm sensing only Options NACE MR175/ISO 15156-compliant models Special cleaning to ASTM G93 Level C Technical Data Series Maximum Inlet Pressure psig (bar) Maximum Outlet Control Pressure psig (bar) Sensing Type Temperature Range F ( C) Flow Coefficient (C v ) Seat Diameter in. (mm) Diaphragm: RS: RS: RS(H)1 to 29 psig 4 to 176.55 (14.) 3.79 RS: 29 (2.) (2. bar) ( 2 to 8) RSH: 115 (7.) RSH: Piston: See Pressure-.53 (13.5) RSH: 3625 (25) to 3625 psig Temperature RS(H)15 58 (4) ( to 25 bar) 7.3.75 (19.) Ratings, page 8. RS(H)2 29 (2.) Diaphragm 13.98 (25.) See pages 23 to page 27 for flow data. ➀ Regulators with NPT inlet / outlet connections have 1/4 in. NPT gauge connections. ➁ All RS(H)2 regulators will have 1/4 in. ISO/BSP gauge ports. Connections Inlet and Outlet Size 1 in. DN25 1 1/2 in. DN4 2 in. DN5 Type NPT ISO/BSP parallel thread ASME or EN flange Gauge➀➁ 1/4 in. NPT or ISO/BSP parallel thread Weight (Without Flanges) lb (kg) 16.5 (7.5) 22. (1.) 39.6 (18.) Materials of Construction 18 19 2 21 22 RS Series Regulator with Diaphragm Sensing and Soft Seat Seal 1 2 3 4 5 6 7 8 9 1 11 12 13 14 15 16 17 RSH Series Regulator with Piston Sensing and Hard Seat Seal 23 24 25 26 Common Components Diaphragm Piston Component Material / Specification 1 Adjusting screw A2-7 2 Nut A2 3 Ball 42 SS (Hardened) 4 Upper spring guide 316L SS / A479 5 Spring housing assembly 316L SS / A479 6 Set spring 5CRV4 7 Cap screw A4-8 8 Washer A4 9 Bottom spring guide 316L SS / A479 1 Poppet S174 SS or 316L SS 11 Seat 316L SS / A479 12 Seat O-ring EPDM, FKM, or nitrile 13 Poppet housing 316L SS / A479 14 Body 316L SS / A479 15 O-rings EPDM, FKM, or nitrile 16 Poppet spring 32 SS / A313 17 Body plug 316L SS / A479 18 Diaphragm EPDM, FKM, or nitrile 19 Diaphragm plate 316L SS / A479 2 Retaining ring Commercial stainless steel 21 Body plate 316L SS / A479 22 Seat seal EPDM, FKM, or nitrile 23 Piston 316L SS / A479 24 Piston O-rings EPDM, FKM, or nitrile 25 Piston plate 316L SS / A479 26 Seat seal PEEK or PCTFE Wetted lubricant: Silicone-based, synthetic hydrocarbon-based Wetted components listed in italics. Gauge plugs (not shown): 431 SS / A276.

Pressure Regulators Series 23 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RS1 Series Flow Coefficient: 3.79 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 46 psig ( to 28. bar) to 58 psig ( to 4. bar) to 29 psig ( to 2. bar) to 145 psig ( to 1. bar) to 43 psig ( to 3. bar) 3 25 3 6 9 12 15 18 2 2 15 1 5 218 (15.) 115 (7.) 58 (4.) 218 (15.) 115 (7.) 5. 58 (4.) 218 (15.) 115 (7.) 218 58 (4.) (15.) 2 4 6 8 1 12 115 (7.) 58 (4.) 115 (7.) 58 (4.) 15 1 RSH1 Series Flow Coefficient: 3.79 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 3625 psig ( to 25 bar) to 3625 psig ( to 25 bar) to 261 psig ( to 18 bar) to 145 psig ( to 1 bar) 4 8 12 16 2 4 35 24 3 25 2 15 1 5 29 (2) 29 (2) 58 (4) 58 (4) 58 (4) 2 16 12 8 4 2 4 6 8 1 12 14

24 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RS15 Series Flow Coefficient: 7.3 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 72 psig ( to 5. bar) to 72 psig ( to 5. bar) to 43 psig ( to 3. bar) 3 6 9 12 15 9 75 6. 5. 6 45 3 218 (15.) 115 (7.) 58 (4.) 4. 3. 2. 15 115 (7.) 58 (4.) 218 (15.) 1. 2 4 6 8 1 RS15 Series Flow Coefficient: 7.3 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 145 psig ( to 1. bar) to 145 psig ( to 1. bar) 5 1 15 2 25 3 18 15 12 1 12 9 6 218 (15.) 58 (4.), 115 (7.) 8. 6. 4. 3 2. 4 8 12 16 2

Pressure Regulators Series 25 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RS15 Series Flow Coefficient: 7.3 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 58 psig ( to 4. bar) to 58 psig ( to 4. bar) to 29 psig ( to 2. bar) 7 6 15 3 45 6 75 9 45 5 4 3 2 58 (4.) 115 (7.) 36 27 18 1 115 (7.) 58 (4.) 115 (7.) 9. 1 2 3 4 5 6

26 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RSH15 Series Flow Coefficient: 7.3 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 58 psig ( to 4. bar) to 58 psig ( to 4. bar) 2 4 6 8 1 7 6 48 4 5 4 3 2 58 (4) 29 (2) 145 (1) 32 24 16 1 8. 1 2 3 4 5 6 7 RSH15 Series Flow Coefficient: 7.3 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 3625 psig ( to 25 bar) to 3625 psig ( to 25 bar) to 261 psig ( to 18 bar) to 145 psig ( to 1 bar) 9 18 27 36 45 4 35 25 3 25 2 15 1 29 (2) 58 (4) 58 (4) 2 15 1 5 58 (4) 29 (2) 5 5 1 15 2 25 3

Pressure Regulators Series 27 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RS2 Series Flow Coefficient: 13 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 72 psig ( to 5. bar) to 72 psig ( to 5. bar) to 43 psig ( to 3. bar) 9 18 27 36 45 75 5 6 4 45 3 218 (15.) 58 (4.) 115 (7.) 58 (4.) 115 (7.) 3 2 15 218 (15.) 1 6 12 18 24 3 RS2 Series Flow Coefficient: 13 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 29 psig ( to 2. bar) to 29 psig ( to 2. bar) to 145 psig ( to 1. bar) 2 4 6 8 1 3 2 24 16 18 12 58 (4.) 115 (7.) 115 (7.) 12 8 6 58 (4.) 4 218 (15.) 13 26 39 52 65

28 Pressure Regulators and Filters Dimensions Dimensions, in inches (millimeters), are for reference only and are subject to change. Series End Connection Size Dimensions, in. (mm) A B C D E F G RS(H)1 1 in. 1.5 (266) 3.54 (9.) 3.7 (78.) 2.28 (58.) 1.97 (5.) 1.77 (45.) 4.53 (115) RS(H)15 1 1/2 in. 1.8 (275) 4.53 (115) 3.78 (96.) 2.44 (62.) 2.1 (51.) 1.77 (45.) 4.53 (115) RS(H)2 2 in. 11.3 (288) 5.51 (14) 3.93 (1) 2.44 (62.) 1.85 (47.) 2.56 (65.) 6.3 (16) 1.97 (5.) Gauge Connection Inlet gauge connection Configuration Top Outlet gauge connection 5.51 (14) RS(H)2 only G A Only one gauge with a 5 mm (2 in.) or larger dial size fits directly into the body. Inlet Outlet Outlet 2 gauge connections F B Inlet E C D Shown with tubing for clarity; tubing not included. Ordering Information Build an RS(H)1, RS(H)15, and RS(H)2 series regulator ordering number by combining the designators in the sequence shown below. 1 2 3 4 5 6 7 8 9 1 11 RS FA 1 A 1-2 - 1 - V V V - G93 1 Series RS = 115 psig (7. bar) maximum inlet pressure RSH = 58 psig (4 bar) maximum inlet pressure 2 Inlet / Outlet B = Female ISO/BSP parallel thread N = Female NPT FA = ASME B16.5 flange FD = EN 192 (DIN) flange 3 Size 1 = 1 in. / DN25 15 = 1 1/2 in. / DN4 2 = 2 in. / DN5 4Pressure Class Omit designator if flanges are not ordered. A = ASME class 15 B = ASME class 3 C = ASME class 6 E = ASME class 15 F = ASME class 25 M = EN class PN16 N = EN class PN4 5Flange Facing Omit designator if flanges are not ordered. 1 = Raised face smooth 3 = RTJ 6 Body Material 2 = 316L SS 7 Diaphragm sensing 1 = to 43 psig ( to 3. bar) 2 = to 72 psig ( to 5. bar) 3 = to 145 psig ( to 1. bar) 4 = to 29 psig ( to 2. bar) Piston sensing 5 = to 58 psig ( to 4. bar)➀ 6 = to 145 psig ( to 1 bar)➀ 7 = to 261 psig ( to 18 bar)➀ 8 = to 3625 psig ( to 25 bar)➀ ➀ RS(H)1 and RS(H)15 series only. 8 Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM 9 Diaphragm / Piston O-Rings V = Fluorocarbon FKM N = Nitrile E = EPDM 1 Seat Seal Material RS series V = Fluorocarbon FKM N = Nitrile E = EPDM RSH series K = PCTFE P = PEEK 11 Options N = NACE MR175/ISO 15156 G93 = ASTM G93 Level C-cleaned

High-Sensitivity, Spring-Loaded Pressure-Reducing Regulators LRS(H)4 Series Pressure Regulators Series 29 Features Diaphragm sensing Large diaphragm for higher accuracy Diaphragm materials: PTFE or 316L SS for most pressure control ranges Bottom mounting Low torque minimizes stem wear Nonventing Cartridge poppet assembly in LRSH4 for ease of service Panel mounting no disassembly required Options External feedback Filter, 25 μm NACE MR175/ISO 15156-compliant models Self-venting Special cleaning to ASTM G93 Level C Technical Data Series Maximum Inlet Pressure psig (bar) LRS4 57 (35.) Maximum Outlet Control Pressure psig (bar) Sensing Type Temperature Range F ( C) 4 to 176 ( 2 to 8) Flow Coefficient (C v ).73 29 (2.) Diaphragm See Pressure- Temperature LRSH4 58 (4) Ratings,.1 page 8. Seat Diameter in. (mm).23 (6.).87 (2.2) Inlet and Outlet Connections 1/2 in. NPT Gauge / Vent Connections Gauge: 1/4 in. NPT Vent: 1/8 in. NPT Weight lb (kg) 5.7 (2.6) See pages 3 to 31 for flow data. Materials of Construction LRS Series Regulator with Soft Seat Seal 2 3 7 8 9 1 Soft Seat Seal Standard in LRS4 14 15 16 17 18 19 2 17 14 19 2 1 4 5 6 11 12 13 Hard Seat Seal Standard in LRSH4 (cartridge design) 16 15 21 22 Component 1 Knob assembly with adjusting screw, nuts Material / Specification Red ABS with 431 SS 2 Spring housing cover 431 SS / A276 3 Spring housing 316L SS / A479 4 C-ring A2 5 Spring guide 316L SS / A479 6 Set spring 5CRV4 7 Cap screw A4-8 8 Washer A2 9 Bottom spring guide 1 Clamp ring 316L SS / A479 11 Diaphragm PTFE or 316L SS 12 Diaphragm screw 13 Body 316L SS / A479 14 Poppet S174 or 431 SS 15 Seat retainer 316L SS / A479 16 O-ring EPDM, FKM, or FFKM 17 Seat LRS LRSH 316L SS / A479 PCTFE or PEEK 18 Seat seal (LRS only) EPDM, FKM, or FFKM 19 Poppet spring 32 SS / A313 2 Poppet housing 21 Fluid case 22 Cartridge plug 316L SS / A479 Wetted lubricants: Silicone-based, synthetic hydrocarbonbased Wetted components listed in italics. Gauge plugs (not shown): 431 SS / A276.

3 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. LRS4 Series Flow Coefficient:.73 Maximum Inlet Pressure: 57 psig (35. bar) Outlet : to 29 psig ( to 2. bar) to 29 psig ( to 2. bar) to 145 psig ( to 1. bar) to 43 psig ( to 3. bar) 3 25 75 15 225 3 375 45 2 2 15 1 5 13 (9.) 362 (25.) 362 (25.) 362 (25.) 218 (15.) 218 (15.) 57 (35.) 57 (35.) 57 (35.) 57 (35.) 13 (9.) 57 (35.) 5 1 15 2 25 3 15 1 5. LRS4 Series with Optional External Feedback Flow Coefficient:.73 Maximum Inlet Pressure: 57 psig (35. bar) Outlet : to 29 psig ( to 2. bar) Comparative Flow Standard External Feedback 3 2 4 6 8 1 12 14 2. 25 362 (25.) 2 15 1 5. 43 (3.) 43 (3.) 43 (3.) 43 (3.) 362 (25.) 13 (9.) 13 (9.) 13 (9.) 13 (9.) 362 (25.) 362 (25.) 1.5 1..5 15 3 45 6 75 9

Pressure Regulators Series 31 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. LRS4 Series with Optional 316L SS Diaphragm Flow Coefficient:.73 Maximum Inlet Pressure: 57 psig (35. bar) Outlet : to 29 psig ( to 2. bar) Comparative Flow Standard 316L SS Diaphragm 3 2 4 6 8 1 12 14 2. 25 2 15 1 5. 43 (3.) 43 (3.) 43 (3.) 43 (3.) 13 (9.) 13 (9.) 15 3 45 6 75 9 13 (9.) 13 (9.) 362 (25.) 362 (25.) 362 (25.) 362 (25.) 1.5 1..5 LRSH4 Series Flow Coefficient:.1 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 29 psig ( to 2. bar) to 29 psig ( to 2. bar) to 13 psig ( to 9. bar) 4 25 8 12 16 2 16 2 15 1 5 145 (1) 145 (1) 145 (1) 29 (2) 29 (2) 29 (2) 12 8. 4. 145 (1) 29 (2) 25 5 75 1 125 15

BAR BAR 32 Pressure Regulators and Filters Dimensions Dimensions, in inches (millimeters), are for reference only and are subject to change. 2.28 (58.) 3.52 (89.5) Bottom Mounting Configuration Top 1.18 (3.) 2.83 (72.) Outlet gauge connection 6.54 (166) Threaded vent connection 4 mounting holes, M6 thread,.39 (1.) deep Inlet Outlet Inlet 1.42 (36.) 2.83 (72.).75 (19.) Outlet Gauge connection (2) 1.48 (37.5) 2.95 (75.).83 (21.) 2.48 (63.) Panel Mounting Panel hole: 2.4 (61.) 2 mounting holes for M5 2 screws Outlet gauge connection Shown with tubing for clarity; tubing not included. 3.3 (77.) Options Self Venting Threaded vent connection is below the panel in self-venting version. External Feedback Compensates for pressure loss (droop). 25 µm Filter Reduces potential seat damage; will reduce flow. LRS4 series cartridge LRSH4 series cartridge Ordering Information Build an LRS4 or LRSH4 series regulator ordering number by combining the designators in the sequence shown below. 1 2 3 4 5 6 7 8 LRS N4-2 - 1 - V T V - S 1 Series LRS = 57 psig (35 bar) maximum inlet pressure LRSH = 58 psig (4 bar) maximum inlet pressure 2 Inlet / Outlet N4 = 1/2 in. female NPT 3 Body Material 2 = 316L SS 4 1 = to 43 psig ( to 3. bar) 2 = to 13 psig ( to 9. bar) 3 = to 29 psig ( to 2. bar) 5 Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM 6 Diaphragm T = PTFE M = 316L SS: only for to 43 psig ( to 3. bar) and to 13 psig ( to 9. bar) pressure control ranges 7 Seat Seal Material LRS series (seat seal) V = Fluorocarbon FKM E = EPDM F = FFKM LRSH series (seat) K = PCTFE P = PEEK 8 Options EF = External feedback F = Filter, 25 μm N = NACE MR175/ISO 15156 S = Self venting G93 = ASTM G93 Level C-cleaned

High Sensitivity, Spring-Loaded Pressure-Reducing Regulators LPRS4, LPRS6, and LPRS8 Series Pressure Regulators Series 33 Features Balanced poppet design Diaphragm sensing Large diaphragm for higher accuracy Suction tube for reduced droop Ideal as second-stage regulator Options Antitamper Gauge connections choice of 4 configurations NACE MR175/ISO 15156-compliant models Special cleaning to ASTM G93 Level C Technical Data Series Maximum Inlet Pressure psig (bar) Maximum Outlet Control Pressure psig (bar) Sensing Type Temperature Range F ( C) Flow Coefficient (C v ) LPRS4 4 to 176 1.84 LPRS6 LPRS8 ( 2 to 8) 232 43. Diaphragm See Pressure- (16.) (3.) Temperature Ratings, page 8. 1.95 2.7 Seat Diameter in. (mm).39 (1.) Connections Inlet and Outlet Size 1/2 in. DN15 3/4 in. DN2 1 in. DN25 Type NPT ISO/BSP parallel thread ASME or EN flange Gauge 1/4 in. NPT Weight See Dimensions, page 36. See pages 34 to 35 for flow data. Materials of Construction 1 2 3 4 5 6 17 18 19 2 21 22 21 23 LPRS Series Regulator with Standard Knob 15 16 Antitamper Option 7 8 9 1 11 12 21 13 14 Component Material / Specification 1 Spring housing assembly 316L SS / A479 2 Ball Commercial stainless steel 3 Spring guide 316L SS / A479 4 Set spring 5CRV4 5 Nut A2 6 Washer A4 7 Cap screw A4-8 8 Washer A4 9 Nut A4-8 1 Body 11 Seat 12 Poppet housing 316L SS / A479 13 Poppet spring 32 SS / A313 14 Body plug 316L SS / A479 15 Knob assembly with adjusting screw, nuts 16 Antitamper assembly with O-ring, adjusting screw Red ABS with A2-7 316L SS, nitrile, A2-7 17 Diaphragm plate 316L SS / A479 18 Diaphragm PTFE, EPDM, FKM, or nitrile 19 Diaphragm screw 2 Poppet 21 O-rings 22 Seat seal 316L SS / A479 EPDM, FKM, or nitrile 23 Backup ring PTFE Wetted lubricants: Silicone-based, synthetic hydrocarbon-based Wetted components listed in italics. Gauge plugs (not shown): 431 SS / A276.

34 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. LPRS4 Series Flow Coefficient: 1.84 Maximum Inlet Pressure: 218 psig (15. bar) Outlet : 1.4 to 43 psig (.1 to 3. bar) 4.3 to 43 psig (.3 to 3. bar) 1.4 to 14.5 psig (.1 to 1. bar) 4 8 12 16 2 5 11 (7.), 218 (15.) 4 3. 3 2 43 (3.), 11 (7.), 218 (15.) 2.4 1.8 1.2 1.6 3 6 9 12 15

Pressure Regulators Series 35 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. LPRS8 Series Flow Coefficient: 2.7 Maximum Inlet Pressure: 218 psig (15. bar) Outlet : 1.4 to 43 psig (.1 to 3. bar) 4.3 to 43 psig (.3 to 3. bar) 1.4 to 14.5 psig (.1 to 1. bar) 7 14 21 28 35 42 5 3. 4 3 2 11 (7.) 218 (15.) 2.4 1.8 1.2 1 43 (3.) 11 (7.) 218 (15.).6 5 1 15 2 25 3

36 Pressure Regulators and Filters Dimensions Dimensions, in inches (millimeters), are for reference only and are subject to change. Series LPRS4 LPRS6 LPRS8 End Connection Size and Type 1/2 in. NPT or ISO/BSP parallel thread DN2 PN4 EN 192 1.2 (258) 1.2 (26) Dimensions, in. (mm) A B C D 2.83 (72.) DN15 PN4 EN 192 1.2 (26) 1/2 in. ASME class 15 B16.5 11. (28) 3/4 in. NPT or ISO/BSP parallel thread 3.23 (82.) 3/4 in. ASME class 15 B16.5 11.2 (285) 1 in. NPT or ISO/BSP parallel thread 3.7 (78.) DN25 PN4 EN 192 1.2 (26) 1 in. ASME class 15 B16.5 11.5 (291) 3.7 (78.) 2.9 (53.) 3.5 (89.) 2.2 (56.) 3.5 (89.) 2.2 (56.) Weight lb (kg) 11. (5.) 14.3 (6.5) 12.1 (5.5) 17.6 (7.8) 12.1 (5.5) 18.3 (8.3) 2.8 (7.) Regulators with Pipe Connections Standard Configuration Top Outlet gauge connection Inlet Outlet 7.2 (183) A Outlet B Inlet Gauge connection C D 3.8 (97.) Shown with tubing for clarity; tubing not included. Regulators with Flange Connections Gauges Due to the size of the diaphragm enclosure it is not possible to fit a gauge without an adapter, unless a gauge with 4 mm (1 1/2 in.) dial and center-back mount is used. Gauge Adapter 2.5 (63.) B 1.5 (4.) 4 mm (1 1/2 in.) gauge dial size with centerback mount 63 mm (2 1/2 in.) or larger gauge dial size requires the use of an adapter. adapter

Pressure Regulators Series 37 Flow Table 1/2 in. DN15, 3/4 in. DN2, 1 in. DN25 Connections Inlet Pressure P1 psig (bar) 14.5 (1.) 43 (3.) 72 (5.) 145 (1.) 232 (16.) Set Pressure P2 psig (bar) Pressure Control Range psig (bar) Flow std ft 3 /min (Nm 3 /h) 1.4 (.1) 1.4 to 14.5 12.9 (22) 4.3 (.3) (.1 to 1.) 17.6 (3) 1.4 (.1) 12.9 (22) 4.3 (.3) 1.4 to 14.5 (.1 to 1.) 23.5 (4) 11 (.8) 35.3 (6) 29 (2.) 4.3 to 43 (.3 to 3.) 47. (8)➀ 1.4 (.1) 12.9 (22) 4.3 (.3) 1.4 to 14.5 (.1 to 1.) 23.5 (4) 11 (.8) 35.3 (6) 29 (2.) 4.3 to 43 (.3 to 3.) 76.5 (13)➀ 4.3 (.3) 1.4 to 14.5 23.5 (4) 11 (.8) (.1 to 1.) 35.3 (6) 29 (2.) 4.3 to 43 (.3 to 3.) 76.5 (13)➀ 4.3 (.3) 1.4 to 14.5 23.5 (4) 11 (.8) (.1 to 1.) 35.3 (6) 29 (2.) ➀ Droop is approximately 15 %. 4.3 to 43 (.3 to 3.) 76.5 (13)➀ Droop Due to the working of the suction tube, LPRS series regulators show little or no droop. Flow If the flows given in the table are exceeded, the set pressure P2 may rise above the original setting. Typical 2-Stage Reduction for improved set-pressure control 29 psig (2 bar) 217 psig (15. bar) 14 psig (1. bar) Ordering Information Build an LPRS4, LPRS6, and LPRS8 series regulator ordering number by combining the designators in the sequence shown below. 1 2 3 4 5 6 7 8 9 1 11 LPRS FA 4 A 1-2 - 2 - V V V - GN2 1 Series LPRS = 232 psig (16. bar) maximum inlet pressure 2 Inlet / Outlet B = Female ISO/BSP parallel thread N = Female NPT FA = ASME B16.5 flange FD = EN 192 (DIN) flange 3 Size 4 = 1/2 in. / DN15 6 = 3/4 in. / DN2 8 = 1 in. / DN25 4Pressure Class Omit designator if flanges are not ordered. A = ASME class 15 N = EN class PN4 5Flange Facing Omit designator if flanges are not ordered. 1 = Raised face smooth 6 Body Material 2 = 316L SS 7 2 = 1.4 to 14.5 psig (.1 to 1. bar) 3 = 4.3 to 43 psig (.3 to 3. bar) 8 Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM 9 Diaphragm V = Fluorocarbon FKM N = Nitrile E = EPDM 1 Seat Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM 11 Options A = Antitamper GN2 = Gauge connection, see below GN4 = Gauge connection, see below GN5 = Gauge connection, see below None = Standard connection, see below Gauge Connection Configuration Standard GN2 GN4 GN5 Go Gi Go Go Go Gi N = NACE MR175/ISO 15156 G93 = ASTM G93 Level C-cleaned

38 Pressure Regulators and Filters High-Sensitivity, Spring-Loaded Pressure-Reducing Regulators LPRS1 and LPRS15 Series Features Balanced poppet design Diaphragm sensing High flow and high accuracy Suction tube for reduced droop Ideal as second-stage regulator Options Antitamper NACE MR175/ISO 15156-compliant models Special cleaning to ASTM G93 Level C Technical Data Series Maximum Inlet Pressure psig (bar) Maximum Outlet Control Pressure psig (bar) Sensing Type Temperature Range C ( F) Flow Coefficient (C v ) Seat Diameter in. (mm) Connections Inlet and Outlet Size Type Gauge Weight (Without Flanges) lb (kg) LPRS1 4 to 176 ( 2 to 8) 3.79.55 (14.) LPRS15 232 43. Diaphragm See Pressure- (16.) (3.) Temperature Ratings, page 8. 7.3.75 (19.) 1 in. DN25 1 1/2 in. DN4 NPT ISO/BSP parallel thread ASME or EN flange 1/4 in. NPT or ISO/BSP parallel thread➀ 17.6 (8.) 22. (1.) See page 39 for flow data. ➀ Regulators with NPT inlet / outlet connections have 1/4 in. NPT gauge connections. Materials of Construction 1 2 5 6 LPRS1 Series Regulator 7 9 8 1 11 12 15 13 16 14 17 18 21 2 22 18 23 19 18 24 18 25 27 26 3 4 Component Material / Specification 1 Adjusting screw A2-7 2 Nut A2 3 Ball Commercial stainless steel 4 Spring guide 316L SS / A479 5 Set spring 5CRV4 6 Spring housing assembly 316L SS / A479 7 Nut A2 8 Washer A4 9 Diaphragm plate 316L SS / A479 1 Cap screw A4-8 11 Washer A2 12 Nut A2 13 Diaphragm PTFE, FKM, EPDM, or nitrile 14 Diaphragm screw 15 Bottom cover 316L SS / A479 16 Retaining ring Commercial stainless steel 17 Body plate 316L SS / A479 18 O-rings 19 Seat seal 2 Suction tube 21 Poppet 22 Seat 23 Poppet housing 24 Body EPDM, FKM, or nitrile 316L SS / A479 25 Poppet spring 32 SS / A313 26 Body plug 316L SS / A479 27 Backup ring PTFE Wetted lubricant: Silicone-based, synthetic hydrocarbon-based Wetted components listed in italics. Gauge plugs (not shown): 431 SS / A276.

Pressure Regulators Series 39 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. LPRS1 Series Flow Coefficient: 3.79 Maximum Inlet Pressure: 232 psig (16. bar) Outlet : 1.4 to 43 psig (.1 to 3. bar) 4.3 to 43 psig (.3 to 3. bar) 1.4 to 14. psig (.1 to 1. bar) 5 1 2 3 4 5 6 7 4 3 11 (7.) 1.5 2 43 (3.) 11 (7.) 218 (15.) 1. 43 (3.) 218 (15.) 1 11 (7.).5 11 (7.) 218 (15.) 43 (3.) 43 (3.) 218 (15.) 11 (7.). 75 15 225 3 375 45 218 (15.) 3. 2.5 2. LPRS15 Series Flow Coefficient: 7.3 Maximum Inlet Pressure: 232 psig (16. bar) Outlet : 1.4 to 43 psig (.1 to 3. bar) 4.3 to 43 psig (.3 to 3. bar) 1.4 to 14. psig (.1 to 1. bar) 5 2 4 6 8 1 3. 4 3 2 1 43 (3.) 1 218 (15.) 11 (7.) 2.5 2. 218 (15.) 1.5 11 (7.) 43 (3.) 218 (15.) 1. 43 (3.) 11 (7.) 218 (15.) 11 (7.).5 43 (3.) 218 (15.) 11 (7.). 2 3 4 5 6 7

4 Pressure Regulators and Filters Dimensions Dimensions, in inches (millimeters), are for reference only and are subject to change. Series LPRS1 LPRS15 End Connection Size and Type 1 in. NPT or ISO/BSP parallel thread DN25 PN4 EN 192 1.8 (275) 9.69 (246) Dimensions, in. (mm) A B C D E F 3.54 (9.) 1 in. ASME class 15 B16.5 9.65 (245) 1 1/2 in. NPT or ISO/BSP parallel thread 4.53 (115) DN4 PN4 EN 192 11.3 (286) 11. (28) 1 1/2 in. ASME class 15 B16.5 12.4 (314) 3.7 (78.) 2.28 (58.) 4.69 (119) 3.78 (96.) 2.44 (62.) 5.12 (13) 2. (5.8) 2.3 (51.6) Regulators with Pipe Connections 1.96 (5.) Regulators with Flange Connections 7.2 (183) A Outlet Inlet F 1.38 (35.1) 1.77 (45.) B C D E B Configuration Top Gauge Connection Inlet gauge connection Outlet gauge connection Inlet Outlet Only one gauge with a 5 mm (2 in.) or larger dial size fits directly into the body. Shown with tubing for clarity; tubing not included.

Ordering Information Pressure Regulators Series 41 Build an LPRS1 and LPRS15 series regulator ordering number by combining the designators in the sequence shown below. 1 2 3 4 5 6 7 8 9 1 11 LPRS FA 1 A 1-2 - 2 - V V V - G93 1 Series LPRS = 232 psig (16. bar) maximum inlet pressure 2 Inlet / Outlet B = Female ISO/BSP parallel thread N = Female NPT FA = ASME B16.5 flange FD = EN 192 (DIN) flange 3 Size 1 = 1 in. / DN25 15 = 1 1/2 in. / DN4 4Pressure Class Omit designator if flanges are not ordered. A = ASME class 15 N = EN class PN4 5Flange Facing Omit designator if flanges are not ordered. 1 = Raised face smooth 6 Body Material 2 = 316L SS 7 2 = 1.4 to 14.5 psig (.1 to 1. bar) 3 = 4.3 to 43 psig (.3 to 3. bar) 8 Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM 9 Diaphragm V = Fluorocarbon FKM N = Nitrile E = EPDM 1 Seat Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM 11 Options A = Antitamper N = NACE MR175/ISO 15156 G93 = ASTM G93 Level C-cleaned

42 Pressure Regulators and Filters Pressure-Reducing, Dome-Loaded and Air-Loaded Regulators RD and RA Series These pressure-reducing, dome-loaded and air-loaded regulators are suitable for most gases and liquids, including acids and oils. These regulators feature various poppet designs, a pressure-sensing diaphragm (piston in RD2 series), and a choice of seat and seal materials to accommodate a variety of pressure, temperature, and flow conditions. These regulators are available with a choice of threaded end connections from 1/4 to 2 in., and with flange end connections from 1/2 to 4 in. The RDH series regulators are high-pressure versions of the RD series regulators, and the LPRD series are low-pressure, high-accuracy versions of the RD series regulators. The RA series regulators are air-loaded regulators. These regulators are available with many options, including a variety of gauge connection configurations, a pilot regulator (RD series only), external feedback (RD series only), special cleaning to ASTM G93 Level C, and NACE MR175/ISO 15156-compliant models. Features Dome-loaded and air-loaded pressure control Diaphragm sensing design except RD2 series 316L stainless steel materials of construction for corrosion resistance Maximum inlet pressure ratings: 115 to 58 psig (7. to 4 bar) Outlet pressure control ranges: Up to to 58 psig ( to 4 bar) Pressure-Temperature Ratings Seat Seal / O-Ring Material PCTFE➀➁ PEEK➀➁ PEEK➀➁ Series Temperature F ( C) RD2 RDH6DP RDH6, 8 RDH1, 15 RDH2, 25 RA4, 6, 8 4 ( 2) to 95 (35) 58 (4) 149 (65) 3987 (275) 176 (8) 1812 (125) RD2 RDH6DP RDH6, 8 RDH1, 15 RDH2, 25 RA4, 6, 8 RDH3 RDH4 Fluorocarbon FKM➀, ➀➁ Nitrile, EPDM, FFKM➁ RD6DP RD6, 8 RD1, 15 RD2, 25 RD3, 4 Maximum Inlet Pressure / Working Pressure psig (bar) LPRD2 LPRD25 LPRD3 LPRD4 58 (4) 46 (28) 115 (7.) 232 (16.) ➀ Regulators (including high-pressure models) built with fluorocarbon FKM seat seals, diaphragms, or O-ring seals, are limited to 5 F ( 15 C). ➁ Regulators (including high-pressure models) built with FFKM seat seals, diaphragms, or O-ring seals, are limited to 14 F ( 1 C). RD2 Technical Data Performance RD(H)6, 8 Series Maximum Inlet Pressure➀ psig (bar) Maximum Outlet Control Pressure➀ psig (bar) Flow Coefficient (C v ) Sensing Type Flow Data on Page RD2 58 (4) 58 (4).5 Piston 45 RD6DP 115 (7.) 115 (7.) RDH6DP 58 (4) 3335 (23) 1.95 Diaphragm RD(H)1, 15 RD(H)6DP RD6 115 (7.) 115 (7.) RDH6 58 (4) 58 (4) 1.95 Diaphragm 49 RD8 115 (7.) 115 (7.) RDH8 58 (4) 58 (4) 2.7 Diaphragm RA4, 6, 8 RD1 115 (7.) 115 (7.) RDH1 58 (4) 3625 (25) RD15 115 (7.) 115 (7.) RDH15 58 (4) 3625 (25) 3.79 Diaphragm 59 7.3 Diaphragm 64, 68 RD(H)2, 25 RD2 115 (7.) 115 (7.) RDH2 58 (4) 29 (2) 13 Diaphragm 71, 72 RD(H)3, 4 LPRD25, 3, 4 RD25 115 (7.) 115 (7.) RDH25 46 (28) 29 (2) RD3 115 (7.) 115 (7.) RDH3 46 (28) 29 (2) RD4 115 (7.) 115 (7.) RDH4 46 (28) 29 (2) LPRD2 LPRD25 21 232 (16.) 29 (2.) LPRD3 36 LPRD4 73 RA4 RA6 RA8 21 Diaphragm 36 Diaphragm 73 Diaphragm 13 Diaphragm 58 (4) 58 (4) 1.84 Diaphragm ➀ For regulators built with flanged connections, pressure may be limited by flange class rating.

Pressure Regulators Series 43 Pressure-Reducing, Dome-Loaded and Air-Loaded Regulators RD and RA Series Soft seat seal design for low-pressure applications Diaphragm sensing mechanism RD Series Pressure-Reducing, Dome-Loaded Regulator Dome-loading mechanism Hard seat seal design for high-pressure applications Inlet Outlet Technical Data Design Series Seat Diameter in. (mm) Inlet and Outlet Connections Gauge Connection Dome Connection Weight (Without Flanges) lb (kg) More Information on Page RD2.87 (2.2) 1/4 in. NPT 1/4 in. NPT 1/8 in. NPT 3.1 (1.4) 44 RD6DP RDH6DP RD6 RDH6 RD8 RDH8.39 (1.).39 (1.).39 (1.) 3/4 in. NPT, ISO/BSP parallel thread, EN or ASME flanges 3/4 in. NPT, ISO/BSP parallel thread, EN or ASME flanges 1 in. NPT, ISO/BSP parallel thread, EN or ASME flanges RD1.55 (14.) 1 in. NPT, ISO/BSP parallel thread, EN RDH1.53 (13.5) or ASME flanges RD15 RDH15 RD2 RDH2 RD25 RDH25 RD3 RDH3 RD4 RDH4.75 (19.).98 (25.) 1 1/2 in. NPT, ISO/BSP parallel thread, EN or ASME flanges 2 in. NPT, ISO/BSP parallel thread, EN or ASME flanges 1.25 (32.) 2 1/2 in. EN or ASME flanges 1.65 (42.) 3 in. EN or ASME flanges 2.36 (6.) 4 in. EN or ASME flanges 1/4 in. NPT 1/4 in. NPT 1.6 (4.8) 53 1/4 in. NPT 1/4 in. NPT 1/4 in. NPT or ISO/BSP parallel thread 1/4 in. NPT or ISO/BSP parallel thread Use P1 gauge connections on pilot regulator Use P1 gauge connections on pilot regulator Use P1 gauge connections on pilot regulator Use P1 gauge connections on pilot regulator 1/4 in. ISO/BSP parallel thread 1/4 in. ISO/BSP parallel thread 1/4 in. ISO/BSP parallel thread 1/4 in. ISO/BSP parallel thread 1/4 in. ISO/BSP parallel thread 1/4 in. ISO/BSP parallel thread 1/4 in. ISO/BSP parallel thread 1/4 in. ISO/BSP parallel thread 8.8 (4.) 48 8.8 (4.) 48 17.6 (6.) 57 19.8 (9.) 57 44. (2) 7 88. (4) 7 136 (62) 82 183 (83) 82 LPRD2.98 (25.) 2 in. EN or ASME flanges 97 Varies with LPRD25 1.25 (32.) 2 1/2 in. EN or ASME flanges Inlet and outlet gauges 1/4 in. ISO/BSP model 97 LPRD3 1.65 (42.) 3 in. EN or ASME flanges included parallel thread and end 97 connection LPRD4 2.36 (6.) 4 in. EN or ASME flanges 97 RA4 RA6 RA8.39 (1.) 1/2 in. NPT, ISO/BSP parallel thread, EN or ASME flanges 3/4 in. NPT, ISO/BSP parallel thread, EN or ASME flanges 1 in. ISO/BSP parallel thread, EN or ASME flanges 1/4 in. NPT 1/4 in. ISO/BSP parallel thread 12.5 (5.7) 13.6 (6.2) 13.6 (6.2) 99

44 Pressure Regulators and Filters Compact, General-Purpose Dome-Loaded Pressure-Reducing Regulators RD2 Series Features Piston sensing Integral 25 μm filter Cartridge poppet assembly for ease of service Bottom mounting Options No filter for liquid applications NACE MR175/ISO 15156-compliant models (nonventing and no-filter models only) Special cleaning to ASTM G93 Level C Panel mounting kit sold separately no disassembly required Technical Data Series Maximum Inlet Pressure psig (bar) Maximum Outlet Control Pressure psig (bar) Sensing Type Temperature Range F ( C) Flow Coefficient (C v ) Seat Diameter in. (mm) Inlet and Outlet Connections Gauge / Dome Connection Weight lb (kg) RD2 58 (4) 58 (4) Piston 4 to 176 ( 2 to 8) See Pressure- Temperature Ratings, page 42..5.87 (2.2) 1/4 in. NPT Gauge: 1/4 in. NPT Dome: 1/8 in. NPT 3.1 (1.4) See page 45 to 46 for flow data. Materials of Construction 1 2 3 Component 1 Dome plug 2 Dome Material / Specification 316L SS / A479 3 Dome plug O-ring FKM, EPDM, nitrile, or FFKM 4 Non-relieving plug 5 Piston 316L SS / A479 4 6 Piston plate 7 Piston O-rings FKM, EPDM, nitrile, or FFKM 5 7 8 Poppet 431 SS / A276 9 Poppet housing 316L SS / A479 6 8 7 1 O-rings FKM, EPDM, nitrile, or FFKM 11 Seat PEEK or PCFTE 12 Seat retainer 316L SS / A479 9 1 11 12 13 14 1 16 13 Poppet spring 32 SS / A313 14 Filter 316L SS 15 Plug 16 Body 316L SS / A479 Wetted lubricants: Silicone-based and synthetic hydrocarbon-based Wetted components listed in italics. Gauge plugs (not shown): 431 SS / A276. 15

Pressure Regulators Series 45 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD2 Series Flow Coefficient:.5 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 58 psig ( to 4 bar) to 58 psig ( to 4 bar) 5 4 1 15 2 25 3 35 25 3 25 2 15 58 (4.) 115 (7.) 29 (2) 58 (4) 2 15 1 1 58 (4.) 115 (7.) 29 (2) 58 (4) 5. 5 58 (4.) 115 (7.) 29 (2), 58 (4) 4 8 12 16 2 RD2 Series Flow Coefficient:.5 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 58 psig ( to 4 bar) to 58 psig ( to 4 bar) 3 25 75 15 225 3 375 45 2 2 15 1 29 (2) 29 (2) 58 (4) 58 (4) 5 115 (7.) 29 (2) 58 (4) 58 (4.) 29 (2) 58 (4) 115 (7.) 5 1 15 2 25 3 15 1 5

46 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD2 Series Flow Coefficient:.5 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 58 psig ( to 4 bar) to 58 psig ( to 4 bar) 6 5 75 15 225 3 375 45 4 4 3 2 29 (2) 58 (4) 58 (4) 3 2 1 1 5 1 15 2 25 3

Pressure Regulators Series 47 Dimensions Dimensions, in inches (millimeters), are for reference only and are subject to change. 2.16 (55.) 1.31 (33.3) Inlet gauge connection Configuration Top Outlet gauge connection 4.21 (17) Inlet Outlet Dome connection 3.78 (96.) 2 gauge connections Inlet Outlet Dome 2.16 (55.).67 (17.) Shown with tubing for clarity; tubing not included. Panel Mounting Kit Inlet 1.26 (32.) Outlet No disassembly required when using panel mount kit. Panel mounting kit ordering number: RS2-P-2.87 (22.) 2 mounting holes M5,.2 (5.) deep 2.76 (7.) 2.36 (6.) 2 holes,.22 (5.5) A 3.13 (79.5) A 2.36 (6.) Panel hole Panel ring Ordering Information Build an RD2 series regulator ordering number by combining the designators in the sequence shown below. 1 2 3 4 5 6 7 RD N2-2 - V V K - L 1 Series RD = 58 psig (4 bar) maximum inlet pressure 2 Inlet / Outlet N2 = 1/4 in. female NPT 3 Body Material 2 = 316L SS 4 Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM F = FFKM 5 Piston Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM F = FFKM 6 Seat Material K = PCTFE P = PEEK 7 Options L = No filter N = NACE MR175/ISO 15156 G93 = ASTM G93 Level C-cleaned

48 Pressure Regulators and Filters General-Purpose, Dome-Loaded Pressure-Reducing Regulators RD(H)6 and RD(H)8 Series Features Balanced poppet design Diaphragm sensing Dome-to-outlet pressure ratio approximately 1:1 Options Pilot regulator (not shown) Gauge connections choice of 4 configurations NACE MR175/ISO 15156-compliant models Special cleaning to ASTM G93 Level C Technical Data Series Maximum Inlet Pressure psig (bar) Maximum Outlet Control Pressure psig (bar) Sensing Type Temperature Range F (C ) Flow Coefficient (C v ) Seat Diameter in. (mm) Inlet and Outlet Connections Gauge / Dome Connection Weight (Without Flanges) lb (kg) RD6 RDH6 RD8 RDH8 RD: 115 (7.) RDH: 58 (4) RD: 115 (7.) RDH: 58 (4) (2537 [175] with pilot regulator) Diaphragm 4 to 176 ( 2 to 8) See Pressure- Temperature Ratings, page 42. 1.95 2.7.39 (1.) 3/4 in. NPT, ISO/BSP parallel thread, EN or ASME flange 1 in. NPT, ISO/BSP parallel thread, EN or ASME flange Gauge: 1/4 in. NPT; Dome: 1/4 in. ISO/BSP parallel thread 8.8 (4.) See page 49 to 51 for flow data. Materials of Construction 13 RD6 Series Regulator with Soft Seat Seal 1 2 3 4 5 6 RDH6 Series Regulator with Hard Seat Seal 17 18 19 2 Component Material / Specification 1 Dome 316L SS / A479 2 Cap screw A4-8 3 Washer A4 4 Dome plate 316L SS / A479 5 Diaphragm EPDM, FKM, or nitrile 6 Diaphragm plate 316L SS / A479 7 O-ring EPDM, FKM, or nitrile 8 Backup ring PTFE 9 Plug O-ring EPDM, FKM, or nitrile 1 Body 316L SS / A479 14 15 16 7 8 9 1 11 12 11 Poppet spring 32 SS / A313 12 Body plug 316L SS / A479 RD Series Only Components 13 Poppet 14 Seat 316L SS / A479 15 Seat seal EPDM, FKM, or nitrile 16 Poppet housing 316L SS/ A479 RDH Series Only Components 17 Poppet S174 or 431 SS / A276 18 Seat 316L SS/ A479 19 Seat seal PCTFE or PEEK 2 Backup ring PTFE Wetted lubricants: Silicone-based and synthetic hydrocarbon-based Wetted components listed in italics. Gauge plugs (not shown): 431 SS / A276.

Pressure Regulators Series 49 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RDH6 Series Flow Coefficient: 1.95 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 362 psig ( to 25. bar) to 362 psig ( to 25. bar) to 145 psig ( to 1. bar) 3 25 2 4 6 8 1 12 14 2 2 15 58 (4.) 115 (7.) 1 1 218 (15.) 58 (4.) 2175 (15) 115 (7.) 2175 (15) 218 (15.) 5. 5 218 (15.) 58 (4.), 115 (7.) 2175 (15) 218 (15.), 58 (4.) 115 (7.), 2175 (15) 18 36 54 72 9 15 RDH6 Series Flow Coefficient: 1.95 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 145 psig ( to 1 bar) to 145 psig ( to 1 bar) to 362 psig ( to 25. bar) 12 5 1 15 2 25 3 8 96 72 48 24 58 (4.) 115 (7.) 115 (7.) 2175 (15) 2175 (15) 2175 (15) 6 4 2 58 (4.) 115 (7.) 2175 (15) 4 8 12 16 2

5 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RDH6 Series Flow Coefficient: 1.95 Maximum Inlet Pressure: 399 psig (275 bar) Outlet : to 2539 psig ( to 175 bar) to 2539 psig ( to 175 bar) 15 3 45 6 75 3 25 18 2 15 1 29 (2) 399 (275) 15 12 9 6 5 3 1 2 3 4 5 RD8 Series Flow Coefficient: 2.7 Maximum Inlet Pressure: 29 psig (2 bar) Outlet : to 115 psig ( to 7. bar) to 115 psig ( to 7. bar) 75 15 225 3 375 45 12 1 78 65 8 6 4 145 (1) 29 (2) 52 39 26 2 13 5 1 15 2 25 3

Pressure Regulators Series 51 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RDH8 Series Flow Coefficient: 2.7 Maximum Inlet Pressure: 2175 psig (15 bar) Outlet : to 362 psig ( to 25. bar) to 362 psig ( to 25. bar) 3 6 9 12 15 18 5 3 4 3 2 58 (4.) 115 (7.), 2175 (15) 25 2 15 1 1 5 218 (15.) 58 (4.) 2175 (15) 115 (7.) 2 4 6 8 1 12 RDH8 Series Flow Coefficient: 2.7 Maximum Inlet Pressure: 399 psig (275 bar) Outlet : to 2537 psig ( to 7. bar) to 2537 psig ( to 175 bar) 15 3 45 6 75 9 3 25 18 2 15 1 2175 (15) 29 (2) 399 (275) 399 (275) 15 12 9 6 5 3 1 2 3 4 5 6

52 Pressure Regulators and Filters Dimensions Dimensions, in inches (millimeters), are for reference only and are subject to change. Series End Connection Size RD(H)6 3/4 in. 3.22 (82.) 5.12 (13) RD(H)8 1 in. 3.7 (78.) Dimensions, in. (mm) A B C D 3.5 (89.) 2.16 (55.) Standard Configuration Top Gauge/Pilot connection Outlet Gauge/Pilot connection Inlet A Dome D Inlet Outlet B C Shown with tubing for clarity; tubing not included. Ordering Information Build an RD(H)6 and RD(H)8 series regulator ordering number by combining the designators in the sequence shown below. 1 2 3 4 5 6 7 8 9 1 11 RD FA 6 A 1-2 - X - V V V - GN2 1 Series RD = 115 psig (7. bar) maximum inlet pressure RDH = 58 psig (4 bar) maximum inlet pressure 2 Inlet / Outlet B = Female ISO/BSP parallel thread N = Female NPT FA = ASME B16.5 flange FD = EN 192 (DIN) flange 3 Size 6 = 3/4 in. / DN2 8 = 1 in. / DN25 4Pressure Class Omit designator if flanges are not ordered. A = ASME class 15 B = ASME class 3 C = ASME class 6 E = ASME class 15 F = ASME class 25 M = EN class PN16 N = EN class PN4 5Flange Facing Omit designator if flanges are not ordered. 1 = Raised face smooth 3 = RTJ 6 Body Material 2 = 316L SS 7 X = No pilot regulator, standard RD series with RS2 series pilot regulator 3 = to 115 psig ( to 7. bar) RDH series with RS2 series pilot regulator 4 = to 145 psig ( to 1. bar) 5 = to 362 psig ( to 25. bar) 6 = to 145 psig ( to 1 bar) 7 = to 2537 psig ( to 175 bar) For higher pressure control ranges with a pilot regulator, contact your authorized Swagelok representative for information. 8 Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM 9 Diaphragm / Piston O-Rings V = Fluorocarbon FKM N = Nitrile E = EPDM 1 Seat Seal Material RD series V = Fluorocarbon FKM N = Nitrile E = EPDM RDH series K = PCTFE P = PEEK 11 Options A = Antitamper GN2 = Gauge connection, see below GN4 = Gauge connection, see below GN5 = Gauge connection, see below None = Standard connection, see below Gauge Connection Configuration Standard GN2 GN4 GN5 Go Gi Go Standard (GN1) and GN4 only available with no pilot. Go Go Gi N = NACE MR175/ISO 15156 G93 = ASTM G93 Level C-cleaned

Differential Pressure, Dome-Loaded Pressure Reducing Regulators RD(H)6DP Series Pressure Regulators Series 53 Features Balanced poppet design Diaphragm sensing Adjustable bias Dome-to-outlet pressure ratio approximately 1:1 Antitamper and anti-blowout stem Options Gauge connection choice of 4 configurations NACE MR175/ISO 15156-compliant models Special cleaning to ASTM G93 Level C Technical Data Series Maximum Inlet Pressure psig (bar) Maximum Outlet Control Pressure psig (bar) RD6DP 115 (7.) 115 (7.) RDH6DP 58 (4) 3335 (23) See page 54 to 55 for flow data. Sensing Type Diaphragm Bias Range psig (bar) 14.5 to 145 (1. to 1.) Temperature Range F (C ) 4 to 176 ( 2 to 8) See Pressure- Temperature Ratings, page 42. Flow Coefficient (C v ) 1.95 Seat Diameter in. (mm).39 (1.) Inlet and Outlet Connections 3/4 in. NPT, ISO/BSP parallel thread, EN or ASME flange Gauge / Dome Connection Gauge: 1/4 in. NPT; Dome: 1/4 in. NPT Weight (Without Flanges) lb (kg) 11.2 (5.1) Materials of Construction 15 16 3 3 3 2 RDH6DP Series Regulator 1 2 3 4 5 6 7 8 9 1 11 12 21 22 23 13 14 Soft seat seal design for low-pressure applications 17 18 19 2 Component Material / Specification 1 Adjustment screw 316L SS / A479 2 Backup ring PTFE 3 O-ring EPDM, FKM, nitrile 4 Cap screw A4-8 5 Washer A4 6 Dome 316L SS / A479 7 Upper spring guide 316L SS / A479 8 Differential spring 5CRV4 9 Lower spring guide 316L SS / A479 1 Diaphragm EPDM, FKM, or nitrile 11 Diaphragm plate 12 Body 316L SS / A479 13 Poppet spring 32 SS / A313 14 Body plug 316L SS / A479 15 Antitamper cover 316L SS / A479 16 Lock Nut A4-8 RD Series Only Components 17 Poppet 18 Seat 316L SS / A479 19 Seat seal EPDM, FKM, or nitrile 2 Poppet housing 316L SS / A479 RDH Series Only Components 21 Poppet S174 / A276 or 431 SS 22 Seat 316L SS / A479 23 Seat seal PCTFE or PEEK Wetted lubricants: Silicone-based and synthetic hydrocarbon-based Wetted components listed in italics. Gauge plugs (not shown): 431 SS / A276. Lockwire and lead seal for anti-tamper (not shown): 34 LEAD

54 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD6DP Series Flow Coefficient: 1.95 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 115 psig ( to 7. bar) to 115 psig ( to 7. bar) All curves 29 psig (2. bar) bias 45 9 135 18 225 75 6 5 4 45 3 115 (7.) 3 2 15 58 (4.) 115 (7.) 1 58 (4.), 115 (7.) 3 6 9 12 15 RD6DP Series Flow Coefficient: 1.95 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 115 psig ( to 7. bar) to 115 psig ( to 7. bar) All curves 116 psig (8. bar) bias 3 6 9 12 15 18 4 25 32 2 24 16 8 58 (4.) 115 (7.) 15 1 5 2 4 6 8 1 12

Pressure Regulators Series 55 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RDH6DP Series Flow Coefficient: 1.95 Maximum Inlet Pressure: 399 psig (275 bar) Outlet : to 3335 psig ( to 23 bar) to 3335 psig ( to 23 bar) All curves 29 psig (2. bar) bias 15 3 45 6 75 18 15 12 1 12 9 6 2175 (15) 399 (275) 8 6 4 3 58 (4.) 115 (7.) 2175 (15) 1 2 3 4 5 2 RDH6DP Series Flow Coefficient: 1.95 Maximum Inlet Pressure: 399 psig (275 bar) Outlet : to 3335 psig ( to 23bar) to 3335 psig ( to 23 bar) All curves 116 psig (8. bar) bias 75 15 225 3 375 45 18 15 399 (275) 12 1 12 9 6 2175 (15) 8 6 4 3 2175 (15) 2 58 (4.) 115 (7.) 5 1 15 2 25 3

56 Pressure Regulators and Filters Dimensions Dimensions, in inches (millimeters), are for reference only and are subject to change. Standard Configuration Top Dome connection Outlet gauge connection Outlet gauge connection 4.3 (19.3) 8.32 (211.3) Inlet Outlet Outlet Inlet 2.16 (54.9).47 (12.) 1.18 (3.) 1.61 (41.) 3.23 (82.) 1.75 (44.5) 3.5 (89.) Shown with tubing for clarity; tubing not included. Ordering Information Build an RD(H)6DP series regulator ordering number by combining the designators in the sequence shown below. 1 2 3 4 5 6 7 8 9 1 11 RD FA 6 A 1-2 - V V V DP2 - GN2 1 Series RD = 115 psig (7. bar) maximum inlet pressure RDH = 58 psig (4 bar) maximum inlet pressure 5 Flange Facing Omit designator if flanges are not ordered. 1 = Raised face smooth 3 = RTJ 1 Differential Pressure DP2 = to 43 psig ( to 3. bar) bias DP3 = to 145 psig ( to 1. bar) bias 2 Inlet / Outlet B = Female ISO/BSP parallel thread N = Female NPT FA = ASME B16.5 flange FD = EN 192 (DIN) flange 3 Size 6 = 3/4 in. / DN2 8 = 1 in. / DN25 4 Pressure Class Omit designator if flanges are not ordered. A = ASME class 15 B = ASME class 3 C = ASME class 6 E = ASME class 15 F = ASME class 25 M = EN class PN16 N = EN class PN4 6 Body Material 2 = 316L SS 7 Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM 8 Diaphragm Material V = Fluorocarbon FKM N = Nitrile E = EPDM 9 Seat Seal Material RD series V = Fluorocarbon FKM N = Nitrile E = EPDM RDH series K = PCTFE P = PEEK 11 Options GN2 = Gauge connection, see below GN4 = Gauge connection, see below GN5 = Gauge connection, see below None = Standard connection, see below Gauge Connection Configuration Standard GN2 GN4 GN5 Go Gi Go Go Go Gi N = NACE MR175/ISO 15156 G93 = ASTM G93 Level C-cleaned

Integral Pilot-Operated, Dome-Loaded Pressure-Reducing Regulators RD(H)1 and RD(H)15 Series Pressure Regulators Series 57 Features Balanced poppet design Diaphragm sensing Integral pilot regulator with dynamic regulation Dome-to-outlet pressure ratio approximately 1:1 Large dome for improved stability Pilot regulator for improved performance Options External feedback (EF) for improved performance EF to main regulator limited by standard outlet pressure range EF to pilot regulator limited to 29 psig (2. bar) Gauge connections NACE MR175/ISO 15156-compliant models Special cleaning to ASTM G93 Level C Technical Data Series RD1 RDH1 RD15 RDH15 Maximum Inlet Pressure psig (bar) RD: 115 (7.) (57 [35.] with LRS4 pilot regulator) RDH: 58 (4) Maximum Outlet Control Pressure psig (bar) RD: 115 (7.) RDH: 3625 (25) Sensing Type Diaphragm Temperature Range F (C ) 4 to 176 ( 2 to 8) See Pressure- Temperature Ratings, page 42. Flow Coefficient (C v ) 3.79 Seat Diameter in. (mm).55 (14.).53 (13.5) Inlet and Outlet Connections Size 1 in. Type NPT, ISO/BSP parallel thread, EN or Gauge / Dome Connection Gauge / pilot: 1/4 in. NPT or ISO/BSP parallel thread➀ Weight (Without Flanges and PR) lb (kg) 17.6 (8.) Dome: 7.3.75 (19.) 1 1/2 in. ASME 1/4 in. ISO/BSP 19.8 (9.) flange parallel thread See pages 58 to 68 for flow data. ➀ Regulators with NPT inlet / outlet connections have 1/4 in. NPT gauge connections. Materials of Construction 2 16 19 17 RDH1 Series Regulator with Hard Seat Seal 1 2 3 4 5 6 7 8 9 1 11 12 13 14 15 RD15 Series Regulator with Soft Seat Seal 18 16 17 Component Material / Specification 1 Dome 316L SS / A479 2 Cap screw A4-8 3 Washer A4 4 Dome plate 316L SS / A479 5 Diaphragm EPDM, FKM, or nitrile 6 Diaphragm plate 316L SS / A479 7 Retaining ring Commercial stainless steel 8 Body plate 9 Poppet 1 Seat 316L SS / A479 11 O-ring EPDM, FKM, or nitrile 12 Body 13 Poppet housing 316L SS / A479 14 Poppet spring 32 SS / A313 15 Body plug 316L SS / A479 16 O-ring 17 Plug O-ring RD Series Only Components EPDM, FKM, or nitrile 18 Seat seal EPDM, FKM, or nitrile RDH Series Only Components 19 Backup ring (RDH1 only) PTFE 2 Seat seal PCTFE or PEEK RD15 with LRS4 pilot regulator Wetted lubricants: Silicone-based and synthetic hydrocarbon-based Wetted components listed in italics. Gauge plugs (not shown): 431 SS / A276.

58 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD1 Series Flow Coefficient: 3.79 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 43 psig ( to 3. bar) to 43 psig ( to 3. bar) 12 24 36 48 6 5 3. 4 3 2 218 (15.) 58 (4.), 115 (7.) 2.4 1.8 1.2 1.6 8 16 24 32 4 RD1 Series Flow Coefficient: 3.79 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 115 psig ( to 7. bar) to 115 psig ( to 7. bar) to 29 psig ( to 2. bar) to 13 psig ( to 9. bar) 5 8 7 1 15 2 25 3 35 5 6 5 4 3 2 1 218 (15.), 115 (7.) 58 (4.), 115 (7.) 58 (4.) 115 (7.) 115 (7.) 4 3 2 1 218 (15.) 5 1 15 2 25

Pressure Regulators Series 59 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RDH1 Series Flow Coefficient: 3.79 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 362 psig ( to 25. bar) to 362 psig ( to 25. bar) to 145 psig ( to 1. bar) 5 4 35 1 15 2 25 3 35 25 3 25 2 15 1 58 (4.), 5 115 (7.) 58 (4.), 399 (275) 5 29 (2), 399 (275) 58 (4.) 115 (7.) 29 (2), 399 (275) 1 15 2 25 2 15 1 5 RDH1 Series Flow Coefficient: 3.79 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 2537 psig ( to 175 bar) to 2537 psig ( to 175 bar) to 145 psig ( to 1 bar) 3 25 25 5 75 1 12 5 2 2 15 1 5 115 (7.) 58 (4.) 29 (2), 399 (275) 399 (275) 29 (2) 15 3 45 6 75 9 29 (2) 399 (275) 29 (2) 399 (275) 15 1 5

6 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RDH1 Series Flow Coefficient: 3.79 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 3625 psig ( to 25 bar) to 3625 psig ( to 25 bar) 2 4 4 6 8 1 35 25 3 25 2 15 1 29 (2) 399 (275) 399 (275) 2 15 1 5 5 15 3 45 6 75 RD1-EF Series Flow Coefficient: 3.79 Maximum Inlet Pressure: 58 psig (4. bar) Outlet : to 115 psig ( to 7. bar) to 115 psig ( to 7. bar) 3 6 9 12 15 18 21 15 1 12 218 (15.) 58 (4.) 8 9 6 218 (15.) 58 (4.) 58 (4.) 6 4 3 218 (15.) 2 3 6 9 12 15

Pressure Regulators Series 61 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD1-EF Series Flow Coefficient: 3.79 Maximum Inlet Pressure: 58 psig (4. bar) Outlet : to 115 psig ( to 7. bar) to 115 psig ( to 7. bar) 9 18 27 36 45 9 75 6 5 6 45 3 115 (7.) 4 3 2 15 58 (4.) 115 (7.) 1 5 1 15 2 25 3 RDH1-EF Series Flow Coefficient: 3.79 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 145 psig ( to 1. bar) to 145 psig ( to 1. bar) 75 15 225 3 375 45 18 12 15 12 9 6 58 (4.) 58 (4.) 115 (7.), 29 (2), 399 (275), 58 (4) 115 (7.), 29 (2), 399 (275), 58 (4) 1 8 6 4 3 2 5 1 15 2 25 3

62 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RDH1-EF Series Flow Coefficient: 3.79 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 145 psig ( to 1 bar) to 145 psig ( to 1 bar) to 362 psig ( to 25. bar) 3 6 9 12 15 9 6 75 6 45 3 115 (7.) 58 (4.) 115 (7.) 29 (2) 399 (275) 29 (2), 399 (275), 58 (4) 58 (4) 5 4 3 2 15 1 2 4 6 8 1 RDH1-EF Series Flow Coefficient: 3.79 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 3625 psig ( to 25 bar) to 3625 psig ( to 25 bar) to 2537 psig ( to 175 bar) to 145 psig ( to 1 bar) 3 6 9 12 15 18 4 58 (4) 32 25 2 24 16 29 (2) 399 (275) 58 (4) 29 (2) 399 (275) 58 (4) 15 1 8 5 2 4 6 8 1 12

Pressure Regulators Series 63 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD1-EFP Series Flow Coefficient: 3.79 Maximum Inlet Pressure: 218 psig (15. bar) Outlet : to 5 psig ( to 34.5 bar) to 5 psig ( to 34.5 bar) 3 6 9 12 15 18 21 35 3 21 18 25 48 (33.) 15 2 12 15 48 (33.) 9 1 218 (15.) 48 (33.) 6 5 218 (15.) 48 (33.) 48 (33.) 3 218 (15.) 2 4 6 8 1 12 14

64 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD15 Series Flow Coefficient: 7.3 Maximum Inlet Pressure: 58 psig (35. bar) Outlet : to 43 psig ( to 3. bar) to 43 psig ( to 3. bar) 15 3 45 6 75 9 5 3. 4 3 2 218 (15.) 58 (35.) 2.4 1.8 1.2 1.6 1 2 3 4 5 6 RD15 Series Flow Coefficient: 7.3 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 115 psig ( to 7. bar) to 115 psig ( to 7. bar) to 29 psig ( to 2. bar) to 13 psig ( to 9. bar) 1 8 7 2 3 4 5 6 7 5 6 5 4 3 2 1 218 (15.) 58 (4.) 115 (7.) 1 218 (15.) 58 (4.) 58 (4.) 115 (7.) 115 (7.) 2 3 4 5 4 3 2 1

Pressure Regulators Series 65 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RDH15 Series Flow Coefficient: 7.3 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 362 psig ( to 25. bar) to 362 psig ( to 25. bar) to 145 psig ( to 1 1. bar) 1 4 35 2 3 4 5 6 25 3 25 2 15 1 5 8 58 (4.), 115 (7.), 29 (2), 363 (25) 58 (4.), 115 (7.), 29 (2), 363 (25) 115 (7.), 58 (4.) 29 (2), 363 (25) 16 24 32 4 2 15 1 5. RDH15 Series Flow Coefficient: 7.3 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 2537 psig ( to 175 bar) to 2537 psig ( to 175 bar) to 2537 psig ( to 175 bar), calculated to 145 psig ( to 1 bar) to 145 psig ( to 1 bar), calculated 4 3 25 8 12 16 2 24 2 16 2 15 1 5 29 (2) 29 (2) 363 (25) 363 (25) 12 8 4 32 64 96 12 8 16

66 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RDH15 Series Flow Coefficient: 7.3 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 3625 psig ( to 25 bar) to 3625 psig ( ( to to 25. 25 bar) to 145 psig ( to 1 bar) 75 15 22 5 3 37 5 4 25 32 58 (4) 2 24 16 29 (2) 58 (4) 15 1 8 5 5 1 15 2 25

Pressure Regulators Series 67 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD15-EF Series Flow Coefficient: 7.3 Maximum Inlet Pressure: 58 psig (35. bar) Outlet : to 115 psig ( to 7. bar) to 362 115 psig ( ( to to 25. 7. bar) to 145 psig ( to 1 bar) 75 15 225 3 375 15 1 12 218 (15.) 58 (35.) 8 9 6 218 (15.) 58 (35.) 6 4 3 218 (15.) 58 (35.) 2 5 1 15 2 25 RD15-EF Series Flow Coefficient: 7.3 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 115 psig ( to 7. bar) to 362 115 psig ( ( to to 25. 7. bar) to 145 psig ( to 1 bar) 14 28 42 56 7 8 5 64 115 (7.) 4 48 32 58 (35.) 115 (7.) 3 2 16 1 9 18 27 36 45

68 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RDH15-EF Series Flow Coefficient: 7.3 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 3625 psig ( to 25 bar) to 3625 psig ( to 25 bar) to 145 psig ( to 1 bar) 75 15 22 5 3 37 5 4 25 32 58 (4) 2 24 16 58 (4) 29 (2) 29 (2) 58 (4) 15 1 8 115 (7.) 58 (4.) 115 (7.) 29 (2) 29 (2), 58 (4) 58 (4) 5 1 15 2 25 5 RD15-EFP Series Flow Coefficient: 7.3 Maximum Inlet Pressure: 58 psig (35. bar) Outlet : to 29 psig ( to 2. bar) to 362 29 psig ( to 25. 2. bar) to 145 psig ( to 1 bar) 75 15 225 3 375 35 3 21 25 2 15 1 58 (35.) 218 (15.) 58 (35.) 18 15 12 9 6 5 218 (15.) 58 (35.) 58 (35.) 218 (15.) 5 1 15 2 25 3

Pressure Regulators Series 69 Dimensions Dimensions, in inches (millimeters), are for reference only and are subject to change. Series End Connection Size Dimensions, in. (mm) A B C D E RD(H)1 1 in. 6.18 (157) 2.28 (58.) 3.7 (78.) 3.54 (9.) 1.97 (5.) RD(H)15 1 1/2 in. 6.61 (168) 2.44 (62.) 3.78 (96.) 4.53 (115) 2.3 (51.5) 4.53 (115) 3.27 (83.1) Configuration Top Inlet gauge connection Outlet gauge connection Gauge connections A Inlet Outlet Outlet Inlet 1.77 (45.) E C B 1.77 (45.) Dome connections D Shown with tubing for clarity; tubing not included. Ordering Information Build an RD(H)1 and RD(H)15 series regulator ordering number by combining the designators in the sequence shown below. 1 2 3 4 5 6 7 8 9 1 11 RD FA 1 A 1-2 - X - V V V - EF 1 Series RD = 115 psig (7. bar) maximum inlet pressure (57 psig [35. bar] with pilot regulator, options, 1, or 2) RDH = 58 psig (4 bar) maximum inlet pressure 2 Inlet / Outlet B = Female ISO/BSP parallel thread N = Female NPT FA = ASME B16.5 flange FD = EN 192 (DIN) flange 3 Size 1 = 1 in. / DN25 15 = 1 1/2 in. / DN4 4Pressure Class Omit designator if flanges are not ordered. A = ASME class 15 B = ASME class 3 C = ASME class 6 E = ASME class 15 F = ASME class 25 M = EN class PN16 N = EN class PN4 5Flange Facing Omit designator if flanges are not ordered. 1 = Raised face smooth 3 = RTJ 6 Body Material 2 = 316L SS 7 Pilot Regulator Options X = No pilot regulator, optional RD series with LRS4 series pilot regulator = to 43 psig ( to 3. bar) 1 = to 13 psig ( to 9. bar) 2 = to 29 psig ( to 2. bar) RD series with RS2 series pilot regulator 3 = to 115 psig ( to 7. bar RDH series with RS2 series pilot regulator 4 = to 145 psig ( to 1. bar) 5 = to 362 psig ( to 25. bar) 6 = to 145 psig ( to 1 bar) 7 = to 2537 psig ( to 175 bar) 8 = to 3625 psig ( to 25 bar) 8 Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM 9 Diaphragm Material V = Fluorocarbon FKM N = Nitrile E = EPDM 1 Seat Seal Material RD series V = Fluorocarbon FKM N = Nitrile E = EPDM RDH series K = PCTFE P = PEEK 11 Options EF = External feedback to main regulator EFP = External feedback to pilot regulator, limited to 29 psig (2. bar) N = NACE MR175/ISO 15156 G93 = ASTM G93 Level C-cleaned

7 Pressure Regulators and Filters Integral Pilot-Operated, Dome-Loaded Pressure-Reducing Regulators RD(H)2 and RD(H)25 Series Features Balanced poppet design Diaphragm sensing Integral pilot regulator with dynamic regulation Dome-to-outlet pressure ratio approximately 1:1 Large dome for improved stability Options External feedback (EF) for improved performance EF to main regulator limited by standard outlet pressure range EF to pilot regulator limited to 29 psig (2. bar) NACE MR175/ISO 15156-compliant models Special cleaning to ASTM G93 Level C Technical Data Series Maximum Inlet Pressure psig (bar) Maximum Outlet Control Pressure psig (bar) Sensing Type Temperature Range F (C ) Flow Coefficient (C v ) Seat Diameter in. (mm) Inlet and Outlet Connections Gauge / Dome Connection Weight (Without Flanges) lb (kg) RD2 RDH2 RD25 RDH25 RD: 115 (7.) (57 [35.] with LRS4 pilot regulator) RDH: 58 (4) RD: 115 (7.) (57 [35.] with LRS4 pilot regulator) RDH: 46 (28) RD: 115 (7.) RDH: 29 (2) Diaphragm 4 to 176 ( 2 to 8) See Pressure- Temperature Ratings, page 42. 13 21.98 (25.) 1.25 (32.) 2 in. NPT, ISO/BSP parallel thread, EN or ASME flange 2 1/2 in. EN or ASME flange Use P1 gauge connection of pilot regulator. Dome: 1/4 in. ISO/BSP parallel thread 44 (2) 88 (4) See pages 71 to 8 for flow data. Materials of Construction RDH2 Series Regulator with Hard Seat Seal 1 2 3 4 5 6 7 8 9 11 13 14 15 RDH2 with RS2 Pilot Regulator 2 1 12 16 17 18 19 RD25 with LRS4 Pilot Regulator Component Material / Specification 1 Dome 316L SS / A479 2 Cap screw A4-8 3 Washer A4 4 Dome plate 316L SS / A479 5 Diaphragm EPDM, FKM, or nitrile 6 Diaphragm plate 316L SS / A479 7 Retaining ring Commercial stainless steel 8 Body plate 9 Poppet 316L SS / A479 1 O-ring EPDM, FKM, or nitrile 11 Seat 316L SS / A479 12 Seat seal RD RDH EPDM, FKM, or nitrile PCTFE or PEEK 13 Poppet housing 316L SS / A479 14 O-ring EPDM, FKM, or nitrile 15 Backup ring PTFE 16 Poppet spring 32 SS / A313 17 Body 316L SS/ A479 18 Plug O-ring EPDM, FKM, or nitrile 19 Body plug 316L SS / A479 2 Conical spring (RDH2 only) 32 SS / A313 Wetted lubricants: Silicone-based and synthetic hydrocarbon-based Wetted components listed in italics. Gauge plugs (not shown): 431 SS / A276.

Pressure Regulators Series 71 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD2 Series Flow Coefficient: 13 Maximum Inlet Pressure: 57 psig (35. bar) Outlet : to 43 psig ( to 3. bar) to 43 psig ( to 3. bar) 25 5 75 1 125 5 3. 4 3 2 218 (15.), 57 (35.) 2.5 2. 1.5 1. 1.5 15 3 45 6 75 9 RD2 Series Flow Coefficient: 13 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 115 psig ( to 7. bar) to 115 psig ( to 7. bar) to 29 psig ( to 2. bar) to 13 psig ( to 9. bar) 2 8 7 4 6 8 1 12 5 6 5 4 3 115 (7.) 2 115 (7.) 1 58 (4.) 58 (4.) 1 115 (7.) 218 (15.) 218 (15.) 58 (4.) 16 32 48 64 8 4 3 2

72 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RDH2 Series Flow Coefficient: 13 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 362 psig ( to 25. bar) to 362 psig ( to 25. bar) to 145 psig ( to 1. bar) 15 4 3 45 6 75 9 35 25 3 25 2 15 1 5 363 (25), 29 (2), 5. 115 (7.), 58 (4.) 363 (25), 29 (2), 115 (7.), 58 (4.) 12 24 36 48 6 363 (25), 29 (2), 115 (7.), 58 (4.) 2 15 1 RDH2 Series Flow Coefficient: 13 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 29 psig ( to 2 bar) to 29 psig ( to 2 bar) to 29 psig ( to 2 bar), calculated to 2537 psig ( to 175 bar) to 2537 psig ( to 175 bar), calculated to 145 psig ( to 1 bar) to 145 psig ( to 1 bar), calculated 3 24 18 12 75 15 22 5 3 37 5 45 363 (25) 29 (2) 363 (25) 6 29 (2) 363 (25) 6 115 (7.) 3 58 (4.), 115 (7.), 29 (2), 363 (25) 29 (2), 363 (25) 6 12 18 24 3 18 15 12 9

Pressure Regulators Series 73 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD2-EF Series Flow Coefficient: 13 Maximum Inlet Pressure: 57 psig (35. bar) Outlet : to 29 psig ( to 2. bar) to 29 psig ( to 2. bar) to 13 psig ( to 9. bar) to 43. psig ( to 3. bar) 35 3 15 3 45 6 75 24 2 25 2 15 1 5 218 (15.) 57 (35.) 218 (15.) 218 (15.), 57 (35.) 57 (35.) 57 (35.) 16 12 8. 4. 1 2 3 4 5 RD2-EF Series Flow Coefficient: 13 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 115 psig ( to 7. bar) to 115 psig ( to 7. bar) 3 6 9 12 15 8 7 5 6 5 4 3 2 115 (7.) 115 (7.) 4 3 2 1 1 2 4 6 8 1

74 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD(H)2-EF Series Flow Coefficient: 13 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 362 psig ( to 25. bar) to 362 psig ( to 25. bar) to 145 psig ( to 1. bar) 6 12 18 24 3 5 4 3 3 2 1 58 (4.) 115 (7.) 58 (4.), 115 (7.), 29 (2), 58 (4) 58 (4.), 115 (7.), 29 (2), 58 (4) 29 (2), 58 (4) 25 2 15 1 5. 4 8 12 16 2 RD(H)2-EF Series Flow Coefficient: 13 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 145 psig ( to 1 bar) to 145 psig ( to 1 bar) 15 3 45 6 75 16 14 1 29 (2) 58 (4) 12 8 1 8 6 4 115 (7.) 29 (2) 58 (4) 6 4 2 2 1 2 3 4 5

Pressure Regulators Series 75 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD(H)2-EF Series Flow Coefficient: 13 Maximum Inlet Pressure: 58 psig (4 bar) Outlet : to 29 psig ( to 2 bar) to 29 psig ( to 2 bar) to 2537 psig ( to 175 bar) 35 15 3 45 6 75 9 24 3 2 25 2 15 1 29 (2) 29 (2) 58 (4) 58 (4) 58 (4) 16 12 8 5 4 1 2 3 4 5 6 RD2-EFP Series Flow Coefficient: 13 Maximum Inlet Pressure: 57 psig (35. bar) Outlet : to 29 psig ( to 2. bar) to 29 psig ( to 2. bar) to 13 psig ( to 9. bar) to 43. psig ( to 3. bar) 15 3 45 6 75 35 3 24. 2. 25 2 15 1 218(15.) 57(35.) 57 (35.) 16. 12. 8. 5. 57(35.) 218(15.) 218 (15.), 57 (35.) 1 2 3 4 5 4.

76 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD25 Series Flow Coefficient: 21 Maximum Inlet Pressure: 57 psig (35. bar) Outlet : to 13 psig ( to 9. bar) to 13 psig ( to 9. bar) to 43. psig ( to 3. bar) 2 4 6 8 1 14 12 9. 218 (15.) 7.5 1 8 6 4 218 (15.) 57 (35.) 57 (35.) 6. 4.5 3. 2 57 (35.) 218 (15.) 1.5 15 3 45 6 75 RD25 Series Flow Coefficient: 21 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 115 psig ( to 7. bar) to 115 psig ( to 7. bar) to 29 psig ( to 2. bar) 4 8 12 16 2 8 7 5 6 5 4 3 2 57 (35.) 58 (4.) 115 (7.) 115 (7.) 4 3 2 1 1 3 6 9 12 15

Pressure Regulators Series 77 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RDH25 Series Flow Coefficient: 21 Maximum Inlet Pressure: 46 psig (28 bar) Outlet : to 362 psig ( to 25. bar) to 362 psig ( to 25. bar) to 145 psig ( to 1. bar) 6 12 18 24 3 4 25 32 24 16 58 (4.) 115 (7.) 29 (2), 46 (28) 2 15 1 8 115 (7.), 29 (2), 58 (4.) 46 (28) 5. 58 (4.), 115 (7.), 29 (2), 46 (28) 4 8 12 16 2 RDH25 Series Flow Coefficient: 21 Maximum Inlet Pressure: 46 psig (28 bar) Outlet : to 29 psig ( to 2 bar) to 29 psig ( to 2 bar) to 2537 psig ( to 175 bar) to 145 psig ( to 1 bar) 35 3 15 3 45 6 75 24 2 25 2 15 1 29 (2) 29 (2) 46 (28) 46 (28) 46 (28) 16 12 8 5 115 (7.) 29 (2) 46 (28) 4 1 2 3 4 5

78 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD25-EF Series Flow Coefficient: 21 Maximum Inlet Pressure: 57 psig (35. bar) Outlet : to 13 psig ( to 9. bar) to 13 psig ( to 9. bar) to 43. psig ( to 3. bar) 15 3 45 6 75 9 14 9. 12 218 (15.) 57 (35.) 7.5 1 8 6 4 218 (15.) 57 (35.) 57 (35.) 6. 4.5 3. 2 218 (15.) 1.5 1 2 3 4 5 6 RD25-EF Series Flow Coefficient: 21 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 115 psig ( to 7. bar) to 115 psig ( to 7. bar) to 29 psig ( to 2. bar) 3 6 9 12 15 18 8 7 5 6 115 (7.) 4 5 4 3 2 57 (35.) 115 (7.) 3 2 1 1 2 4 6 8 1 12

Pressure Regulators Series 79 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RDH25-EF Series Flow Coefficient: 21 Maximum Inlet Pressure: 46 psig (28 bar) Outlet : to 362 psig ( to 25. bar) to 362 psig ( to 25. bar) to 145 psig ( to 1. bar) 9 18 27 36 45 4 29 (2), 46 (28) 32 58 (4.) 115 (7.) 25 24 16 58 (4.) 115 (7.) 29 (2), 46 (28) 2 15 1 8 58 (4.), 115 (7.), 29 (2), 46 (28) 5. 6 12 18 24 3 RDH25-EF Series Flow Coefficient: 21 Maximum Inlet Pressure: 46 psig (28 bar) Outlet : to 29 psig ( to 2 bar) to 29 psig ( to 2 bar) to 2537 psig ( to 175 bar) to 145 psig ( to 1 bar) 35 3 15 3 45 6 75 24 2 25 2 15 1 29 (2) 29 (2) 46 (28) 46 (28) 46 (28) 16 12 8 5 115 (7.) 29 (2) 46 (28) 4 1 2 3 4 5

8 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD25-EFP Series Flow Coefficient: 21 Maximum Inlet Pressure: 57 psig (35. bar) Outlet : to 29 psig ( to 2. bar) to 29 psig ( to 2. bar) to 13 psig ( to 9. bar) to 43. psig ( to 3. bar) 35 3 15 3 45 6 75 9 24. 2. 25 2 15 1 218 (15.) 57 (35.) 57 (35.) 16. 12. 8. 5. 218 (15.) 57 (35.) 57 (35.) 4. 218 (15.) 1 2 3 4 5 6

Pressure Regulators Series 81 Dimensions Dimensions, in inches (millimeters), are for reference only and are subject to change. Series End Connection Size Dimensions, in. (mm) A B C D E RD(H)2 2 in. 9.33 (237) 7.28 (185) 2.44 (62.) 4.33 (11) 5.51 (14) RD(H)25 2 1/2 in. 11.8 (3) 9.25 (235) 3.42 (87.) 4.92 (125) 6.69 (17) Side Top D A B E C Shown with RS2 series pilot regulator. Ordering Information Build an RD(H)2 and RD(H)25 series regulator ordering number by combining the designators in the sequence shown below. 1 2 3 4 5 6 7 8 9 1 11 RD FA 2 A 1-2 - - V V V - EF 1 Series RD = 115 psig (7. bar) maximum inlet pressure (57 psig [35. bar] with pilot regulator, options, 1, or 2) RDH = 58 psig (4 bar) maximum inlet pressure (RDH2); 46 psig (28 bar) maximum inlet pressure (RDH25) 2 Inlet / Outlet B = Female ISO/BSP parallel thread➀ N = Female NPT➀ FA = ASME B16.5 flange FD = EN 192 (DIN) flange ➀ RD(H)2 only. 3 Size 2 = 2 in. / DN5 25 = 2 1/2 in. / DN65 4Pressure Class Omit designator if flanges are not ordered. A = ASME class 15 B = ASME class 3 C = ASME class 6 E = ASME class 15 F = ASME class 25 M = EN class PN16 N = EN class PN4 5Flange Facing Omit designator if flanges are not ordered. 1 = Raised face smooth 3 = RTJ 6 Body Material 2 = 316L SS 7 Pilot Regulator Options X = No pilot regulator, optional RD series with LRS4 series pilot regulator = to 43 psig ( to 3. bar) 1 = to 13 psig ( to 9. bar) 2 = to 29 psig ( to 2. bar) RD series with RS2 series pilot regulator 3 = to 115 psig ( to 7. bar) RDH series with RS2 series pilot regulator 4 = to 145 psig ( to 1. bar) 5 = to 362 psig ( to 25. bar) 6 = to 145 psig ( to 1 bar) 7 = to 2537 psig ( to 175 bar) 8 = to 29 psig ( to 2 bar 8 Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM 9 Diaphragm Material V = Fluorocarbon FKM N = Nitrile E = EPDM 1 Seat Seal Material RD series V = Fluorocarbon FKM N = Nitrile E = EPDM RDH series K = PCTFE P = PEEK 11 Options EF = External feedback to main regulator EFP = External feedback to pilot regulator, limited to 29 psig (2. bar) N = NACE MR175/ISO 15156 G93 = ASTM G93 Level C-cleaned

82 Pressure Regulators and Filters Integral Pilot-Operated, Dome-Loaded Pressure-Reducing Regulators RD(H)3 and RD(H)4 Series Features Balanced poppet design Diaphragm sensing Integral pilot regulator with dynamic regulation Dome-to-outlet pressure ratio approximately 1:1 Large dome for stability Floating seat for improved sealing reliability (patent pending) Options External feedback (EF) for improved performance EF to main regulator limited by standard outlet pressure range EF to pilot regulator limited to 29 psig (2. bar) NACE MR175/ISO 15156-compliant models Special cleaning to ASTM G93 Level C Technical Data Series RD Maximum Inlet Pressure psig (bar) 115 (7.) (57 [35.] with LRS4 pilot regulator) Maximum Outlet Control Pressure psig (bar) 115 (7.) RDH 46 (28) 29 (2) Sensing Type Diaphragm Temperature Range F (C ) 4 to 176 ( 2 to 8) See Pressure- Temperature Ratings, page 42. Flow Coefficient (C v ) RD(H)3: 36 RD(H)4: 73 Seat Diameter in. (mm) RD(H)3: 1.65 (42.) RD(H)4: 2.36 (6.) Inlet and Outlet Connections EN or ASME flanges RD(H)3: 3 in. RD(H)4: 4 in. Gauge / Dome Connection Use P1 gauge connection of pilot regulator. Dome: 1/4 in. ISO/BSP parallel thread Weight (With Class 15 Flanges) lb (kg) RD(H)3: 136 (62) RD(H)4: 183 (83) See pages 83 to 95 for flow data. Materials of Construction 1 2 3 4 5 RD3 Series Regulator 6 7 8 9 1 11 12 17 13 18 14 19 15 2 16 21 22 RD Poppet and Seat RDH Poppet and Seat Component Material / Specification 1 Cap screw A4-8 2 Washer A4 3 Dome 316L SS / A479 4 Dome plate 316L SS / A479 5 Diaphragm EPDM, FKM, or nitrile 6 Conical spring (RD[H]3 only) 32 SS / A313 7 Diaphragm plate 316L SS / A479 8 Retaining ring Commercial stainless steel 9 Body assembly (body, reducers, flanges) 1 Body plate 316L SS / A479 11 Poppet 316L SS / A479 12 O-ring EPDM, FKM, or nitrile 13 Seat 316L SS / A479 14 Seat seal RD RDH EPDM, FKM, or nitrile PEEK 15 Poppet housing 316L SS / A479 16 O-ring 17 Plug O-ring EPDM, FKM, or nitrile 18 Guide ring PTFE 19 Poppet spring 32 SS / A313 2 Body plug 316L SS / A479 21 Washer A4 22 Cap Screw A4-8 Wetted lubricants: Silicone-based and synthetic hydrocarbon-based Wetted components listed in italics. Gauge plugs (not shown): 431 SS / A276.

Pressure Regulators Series 83 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD3 Series Flow Coefficient: 36 Maximum Inlet Pressure: 57 psig (35. bar) Outlet : to 13 psig ( to 9. bar) to 13 psig ( to 9. bar) to 43. psig ( to 3. bar) 15 3 45 6 75 9 14 12 9. 7.5 1 8 6 4 218 (15.), 57 (35.) 218 (15.) 57 (35.) 6. 4.5 3. 2 218 (15.), 57 (35.) 1.5 1 2 3 4 5 6 RD3 Series Flow Coefficient: 36 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 115 psig ( to 7. bar) to 115 psig ( to 7. bar) to 29 psig ( to 2. bar) 7 14 21 28 35 8 7 5 6 4 5 4 3 2 1 57 (35.) 58 (4.), 115 (7.) 115 (7.) 3 2 1 5 1 15 2 25

84 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RDH3 Series Flow Coefficient: 36 Maximum Inlet Pressure: 46 psig (28 bar) Outlet : to 362 psig ( to 25. bar) to 362 psig ( to 25. bar) to 145 psig ( to 1. bar) 4 8 12 16 2 4 35 25 3 25 2 15 1 5 58 (4.), 115 (7.), 29 (2), 46 (28) 58 (4.), 115 (7.), 29 (2), 46 (28) 58 (4.) 115 (7.), 29 (2), 46 (28) 2 4 6 8 1 12 14 2 15 1 5. RDH3 Series Flow Coefficient: 36 Maximum Inlet Pressure: 46 psig (28 bar) Outlet : to 145 psig ( to 1 bar) to 145 psig ( to 1 bar) 15 3 45 6 75 9 16 14 1 12 8 1 8 6 4 29 (2), 46 (28) 29 (2), 46 (28) 6 4 2 115 (7.) 2 1 2 3 4 5 6

Pressure Regulators Series 85 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RDH3 Series Flow Coefficient: 36 Maximum Inlet Pressure: 46 psig (28 bar) Outlet : to 29 psig ( to 2 bar) to 29 psig ( to 2 bar) to 2537 psig ( to 175 bar) 35 3 3 6 9 12 15 24 2 25 2 15 1 46 (28) 46 (28) 16 12 8 29 (2) 5 4 2 4 6 8 1

86 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD3-EF Series Flow Coefficient: 36 Maximum Inlet Pressure: 57 psig (35. bar) Outlet : to 13 psig ( to 9. bar) to 13 psig ( to 9. bar) to 43. psig ( to 3. bar) 3 6 9 12 15 18 14 9. 12 218 (15.) 57 (35.) 7.5 1 8 6 4 218 (15.) 57 (35.) 57 (35.) 6. 4.5 3. 218 (15.) 2 1.5 2 4 6 8 1 12 RD3-EF Series Flow Coefficient: 36 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 115 psig ( to 7. bar) to 115 psig ( to 7. bar) to 29 psig ( to 2. bar) 7 14 21 28 35 8 7 5 6 115 (7.) 4 5 4 3 2 58 (4.) 57 (35.) 115 (7.) 3 2 1 1 5 1 15 2 25

Pressure Regulators Series 87 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RDH3-EF Series Flow Coefficient: 36 Maximum Inlet Pressure: 46 psig (28 bar) Outlet : to 362 psig ( to 25. bar) to 362 psig ( to 25. bar) to 145 psig ( to 1. bar) 1 2 3 4 5 4 35 3 25 2 15 1 58 (4.) 115 (7.) 115 (7.), 29 (2), 46 (28) 58 (4.) 29 (2), 46 (28) 25 2 15 1 5 58 (4.), 115 (7.), 29 (2), 46 (28) 5. 5 1 15 2 25 3 35 RDH3-EF Series Flow Coefficient: 36 Maximum Inlet Pressure: 46 psig (28 bar) Outlet : to 145 psig ( to 1 bar) to 145 psig ( to 1 bar) 16 14 2 4 6 8 1 12 14 29 (2) 46 (28) 1 12 8 1 8 6 4 115 (7.) 29 (2) 46 (28) 6 4 2 2 15 3 45 6 75 9

88 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RDH3-EF Series Flow Coefficient: 36 Maximum Inlet Pressure: 46 psig (28 bar) Outlet : to 29 psig ( to 2 bar) to 29 psig ( to 2 bar) to 2537 psig ( to 175 bar) 35 3 25 2 15 1 2 4 6 8 1 12 14 24 29 (2) 46 (28) 46 (28) 46 (28) 2 16 12 8 5 4 15 3 45 6 75 9

Pressure Regulators Series 89 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD3-EFP Series Flow Coefficient: 36 Maximum Inlet Pressure: 57 psig (35. bar) Outlet : to 13 psig ( to 9. bar) to 13 psig ( to 9. bar) to 43. psig ( to 3. bar) 3 6 9 12 15 18 14 9. 12 218 (15.) 57 (35.) 7.5 1 8 6 4 218 (15.) 57 (35.) 218 (15.) 57 (35.) 6. 4.5 3. 2 1.5 2 4 6 8 1 12 RD3-EFP Series Flow Coefficient: 36 Maximum Inlet Pressure: 57 psig (35. bar) Outlet : to 29 psig ( to 2. bar) to 29 psig ( to 2. bar) 35 3 3 6 9 12 15 18 24 2 25 2 15 1 57 (35.) 16 12 8. 5 4. 2 4 6 8 1 12

9 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD4 Series Flow Coefficient: 73 Maximum Inlet Pressure: 57 psig (35. bar) Outlet : to 13 psig ( to 9. bar) to 13 psig ( to 9. bar) to 43. psig ( to 3. bar) 14 12 3 6 9 12 15 9. 7.5 1 8 6 4 218 (15.), 57 (35.) 6. 4.5 3. 218 (15.), 57 (35.) 2 1.5 218 (15.), 57 (35.) 2 4 6 8 1 RD4 Series Flow Coefficient: 73 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 115 psig ( to 7. bar) to 115 psig ( to 7. bar) to 29 psig ( to 2.5 bar) 8 7 1 2 3 4 5 6 5 6 5 4 3 2 1 58 (4.), 115 (7.) 57 (35.) 115 (7.) 4 3 2 1 6 12 18 24 3 36 42

Pressure Regulators Series 91 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RDH4 Series Flow Coefficient: 73 Maximum Inlet Pressure: 46 psig (28 bar) Outlet : to 362 psig ( to 25. bar) to 362 psig ( to 25. bar) to 145 psig ( to 1. bar) 5 1 15 2 25 3 4 35 25 3 2 25 2 15 1 5 58 (4.), 115 (7.), 29 (2), 46 (28) 58 (4.), 115 (7.), 29 (2), 46 (28) 58 (4.), 115 (7.), 29 (2), 46 (28) 15 1 5. 4 8 12 16 2 RDH4 Series Flow Coefficient: 73 Maximum Inlet Pressure: 46 psig (28 bar) Outlet : to 145 psig ( to 1 bar) to 145 psig ( to 1 bar) 24 48 72 96 12 16 14 1 12 1 8 6 4 29 (2), 46 (28) 115 (7.) 29 (2), 46 (28) 8 6 4 2 2 16 32 48 64 8

92 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RDH4 Series Flow Coefficient: 73 Maximum Inlet Pressure: 46 psig (28 bar) Outlet : to 29 psig ( to 2 bar) to 29 psig ( to 2 bar) to 2537 psig ( to 175 bar) 35 3 4 8 12 16 2 24 2 25 2 15 1 29 (2) 46 (28) 46 (28) 16 12 8 5 4 3 6 9 12 15 RD4-EF Series Flow Coefficient: 73 Maximum Inlet Pressure: 57 psig (35. bar) Outlet : to 13 psig ( to 9. bar) to 13 psig ( to 9. bar) to 43. psig ( to 3. bar) 14 5 1 15 2 25 3 9. 12 218 (15.) 57 (35.) 7.5 1 8 6 4 218 (15.) 57 (35.) 218 (15.) 57 (35.) 6. 4.5 3. 2 1.5 4 8 12 16 2

Pressure Regulators Series 93 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD4-EF Series Flow Coefficient: 73 Maximum Inlet Pressure: 115 psig (7. bar) Outlet : to 115 psig ( to 7. bar) to 115 psig ( to 7. bar) to 29 psig ( to 2. bar) 8 7 1 2 3 4 5 6 115 (7.) 5 6 5 4 3 2 57 (35.) 58 (4.) 115 (7.) 4 3 2 1 1 6 12 18 24 3 36 42 RDH4-EF Series Flow Coefficient: 73 Maximum Inlet Pressure: 46 psig (28 bar) Outlet : to 362 psig ( to 25. bar) to 362 psig ( to 25. bar) to 145 psig ( to 1. bar) 2 4 6 8 1 4 35 58 (4.) 115 (7.) 29 (2), 46 (28) 25 3 25 2 15 1 115 (7.), 29 (2), 58 (4.) 46 (28) 2 15 1 5 58 (4.), 115 (7.), 29 (2), 46 (28) 5. 1 2 3 4 5 6 7

94 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RDH4-EF Series Flow Coefficient: 73 Maximum Inlet Pressure: 46 psig (28 bar) Outlet : to 145 psig ( to 1 bar) to 145 psig ( to 1 bar) 4 8 12 16 2 16 14 29 (2) 46 (28) 1 12 8 1 8 6 4 115 (7.) 29 (2) 46 (28) 6 4 2 2 3 6 9 12 15 RDH4-EF Series Flow Coefficient: 73 Maximum Inlet Pressure: 46 psig (28 bar) Outlet : to 29 psig ( to 2 bar) to 29 psig ( to 2 bar) to 2537 psig ( to 175 bar) 35 4 8 12 16 2 24 3 25 2 15 1 46 (28) 29 (2) 46 (28) 2 16 12 8 5 4 3 6 9 12 15

Pressure Regulators Series 95 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RD4-EFP Series Flow Coefficient: 73 Maximum Inlet Pressure: 57 psig (35. bar) Outlet : to 13 psig ( to 9. bar) to 13 psig ( to 9. bar) to 43. psig ( to 3. bar) 14 5 1 15 2 25 3 9. 12 218 (15.) 57 (35.) 7.5 1 8 6 4 218 (15.) 218 (15.) 57 (35.) 57 (35.) 6. 4.5 3. 2 1.5 4 8 12 16 2 RD4-EFP Series Flow Coefficient: 73 Maximum Inlet Pressure: 57 psig (35. bar) Outlet : to 29 psig ( to 2. bar) to 29 psig ( to 2. bar) 35 3 5 1 15 2 25 3 24 2 25 2 15 1 57 (35.) 16 12 8. 5 4. 4 8 12 16 2

96 Pressure Regulators and Filters Dimensions Dimensions, in inches (millimeters), are for reference only and are subject to change. Series End Connection Size Dimensions, in. (mm) A B C D E F RD(H)3 3 in. 12.2 (31) 9.55 (243) 3.33 (84.6) 5.91 (15) 7.48 (19) 8.5 (216) RD(H)4 4 in. 14. (356) 11.4 (29) 4.37 (111) 5.91 (15) 8.27 (21) 8.5 (216) Side Top F A Outlet B Inlet C D E Varies based on flange size Shown with RS2 series pilot regulator. Ordering Information Build an RD(H)3 and RD(H)4 series regulator ordering number by combining the designators in the sequence shown below. 1 2 3 4 5 6 7 8 9 1 11 RD FA 3 A 1-2 - - V V V - EF 1 Series RD = 115 psig (7. bar) maximum inlet pressure (57 psig [35. bar] with pilot regulator, options, 1, or 2) RDH = 46 psig (28 bar) maximum inlet pressure 2 Inlet / Outlet FA = ASME B16.5 flange FD = EN 192 (DIN) flange 3 Size 3 = 3 in. / DN8 4 = 4 in. / DN1 4Pressure Class A = ASME class 15 B = ASME class 3 C = ASME class 6 E = ASME class 15 F = ASME class 25 M = EN class PN16 N = EN class PN4 5Flange Facing 1 = Raised face smooth 3 = RTJ 6 Body Material 2 = 316L SS 7 Pilot Regulator Options X = No pilot regulator, optional RD series with LRS4 series pilot regulator = to 43 psig ( to 3. bar) 1 = to 13 psig ( to 9. bar) 2 = to 29 psig ( to 2. bar) RD series with RS2 series pilot regulator 3 = to 115 psig ( to 7. bar RDH series with RS2 series pilot regulator 4 = to 145 psig ( to 1. bar) 5 = to 362 psig ( to 25. bar) 6 = to 145 psig ( to 1 bar) 7 = to 2537 psig ( to 175 bar) 8 = to 29 psig ( to 2 bar 8 Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM 9 Diaphragm Material V = Fluorocarbon FKM N = Nitrile E = EPDM 1 Seat Seal Material RD series V = Fluorocarbon FKM N = Nitrile E = EPDM RDH series P = PEEK 11 Options EF = External feedback to main regulator EFP = External feedback to pilot regulator [outlet pressure limited to 29 psig (2. bar)] N = NACE MR175/ISO 15156 G93 = ASTM G93 Level C-cleaned

Integral Pilot-Operated, Dome-Loaded Pressure-Reducing Regulators, High Sensitivity LPRD2, LPRD25, LPRD3, LPRD4 Series Pressure Regulators Series 97 Features Balanced poppet design Diaphragm sensing Integral pilot regulator (LPRS4 series) with dynamic regulation High flow Large diaphragm for high accuracy Integral feedback line Inlet and outlet gauges Options Special cleaning to ASTM G93 Level C Technical Data Series LPRD Maximum Inlet Pressure psig (bar) 232 (16.) Maximum Outlet Control Pressure psig (bar) 29. (2.) Sensing Type Diaphragm Temperature Range F (C ) 4 to 176 ( 2 to 8) See Pressure- Temperature Ratings, page 42. Flow Coefficient (C v ) LPRD2: 13 LPRD25: 21 LPRD3: 36 LPRD4: 73 Seat Diameter in. (mm) LPRD2:.98 (25.) LPRD25: 1.25 (32.) LPRD3: 1.65 (42.) LPRD4: 2.36 (6.) Inlet and Outlet Connections EN or ASME flanges LPRD2: 2 in. LPRD25: 2 1/2 in. LPRD3: 3 in. LPRD4: 4 in. Gauges / Dome Connection Inlet and outlet gauges included. Dome: 1/4 in. ISO/BSP parallel thread Weight lb (kg) Varies with model and end connection Materials of Construction 13 1 2 3 4 5 6 Pressure gauge LPRD2 Series Regulator 1 14 15 1 16 17 LPRD2 with LPRS4 Pilot Regulator Pilot regulator Dynamic regulation (with fixed orifice) 18 1 19 2 Feedback line 7 8 9 1 11 12 21 Component 1 Dome assembly 2 Dome plate (2) Material / Specification 316L SS / A479 3 Diaphragm EPDM, FKM, or nitrile 4 Cap screw A4-8 5 Washer A4 6 Nut A2 7 Diaphragm screw 316L SS / A479 8 Nut A2 9 Washer A4 1 O-ring EPDM, FKM, or nitrile 11 Push rod 316L SS / A479 12 Guide bushing PTFE 13 Retaining ring Commercial stainless steel 14 Body plate 316L SS / A479 15 Poppet 431 SS / A276 16 Seat 316L SS / A479 17 Poppet spring 32 SS / A313 18 Body plug 19 Poppet housing 316L SS / A479 2 Seat seal EPDM, FKM, or nitrile 21 Body assembly 316L SS / A479 Wetted lubricants: Silicone-based and synthetic hydrocarbon-based Wetted components listed in italics. Gauge plugs (not shown): 431 SS / A276.

98 Pressure Regulators and Filters For flow curve information, contact your authorized Swagelok representative. Dimensions Dimensions, in inches (millimeters), are for reference only and are subject to change. Series End Connection Size Dimensions, in. (mm) LPRD2 2 in. 5.87 (149) 3.94 (1) LPRD25 2 1/2 in. 7.1 (178) 2.56 (65.) LPRD3 3 in. 5.87 (149) 3.94 (1) LPRD4 4 in. 8.66 (22) 3.94 (1) A B Side Top 13. to 15.4 (33 to 391) Inlet Outlet A Varies based on flange size 14.2 (36) B Ordering Information Build an LPRD series regulator ordering number by combining the designators in the sequence shown below. 1 2 3 4 5 6 7 8 9 1 11 LPRD FA 2 A 1-2 - 2 - V V V - G93 1 Series LPRD = 232 psig (16. bar) maximum inlet pressure 2 Inlet / Outlet FA = ASME B16.5 flange FD = EN 192 (DIN) flange 3 Size 2 = 2 in. / DN5 25 = 2 1/2 in. / DN65 3 = 3 in. / DN8 4 = 4 in. / DN1 4Pressure Class A = ASME class 15 N = EN class PN4 5 Flange Facing 1 = Raised face smooth 3 = RTJ 6 Body Material 2 = 316L SS 7 2 = 1.4 to 14.5 psig (.1 to 1. bar) 3 = 4.3 to 29 psig (.3 to 2. bar) 8 Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM 9 Diaphragm Material V = Fluorocarbon FKM N = Nitrile E = EPDM 1 Seat Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM 11 Options G93 = ASTM G93 Level C-cleaned

Pressure Regulators Series 99 Air-Loaded, Pressure-Reducing Regulators RA Series Features Balanced poppet design Diaphragm sensing Air-loaded pressure control with a choice of pilot-to-outlet pressure ratios. Remote control Captured self-vent Choice of dome-to outlet pressure ratios: 1:15, 1:4, or 1:7 Pneumatic actuation by springloaded regulator or proportional regulator Options Gauge connection choice of 4 configurations NACE MR175/ISO 15156-compliant models Special cleaning to ASTM G93 Level C WARNING: Self-venting regulators can release system fluid to atmosphere. Position the self-vent hole away from operating personnel. Technical Data Series RA4 RA6 RA8 Maximum Inlet Pressure psig (bar) Maximum Outlet Control Pressure➀ psig (bar) 58 (4) 58 (4) Temperature Range C ( F) 4 to 176 ( 2 to 8) See Pressure- Temperature Ratings, page 42. Flow Coefficient (C v ) Seat Diameter in. (mm) 1.84.39 (1.) See pages 1 to 12 for flow data. ➀ Outlet control limited to 2175 psig (15 bar) for RA series with dome-to-pressure ratio of 1:15. Inlet and Outlet Connections 1/2 in. NPT, ISO/BSP parallel thread, EN or ASME flanges 3/4 in. NPT, ISO/BSP parallel thread, EN or ASME flanges 1 in. ISO/BSP parallel thread, EN or ASME flanges Gauge / Dome / Vent Connections Gauge: 1/4 in. NPT Dome: 1/4 in. ISO/BSP parallel thread Vent: 1/8 in. ISO/BSP parallel thread Weight (Without Flanges) lb (kg) 12.5 (5.7) 13.6 (6.2) 13.6 (6.2) Materials of Construction 1 2 3 4 5 6 7 8 9 1 11 9 7 18 RA4 Series Regulator 9 12 13 9 14 15 16 9 7 17 Component Material / Specification 1 Dome assembly 316L SS / A479 2 Cap screw A4-8 3 Washer A4 4 Nut A2 5 Diaphragm / support EPDM, FKM, or nitrile / PTFE 6 Diaphragm plate 316L SS / A479 7 Piston plate assembly 316L SS / A479 8 Backup ring PTFE 9 O-ring EPDM, FKM, or nitrile 1 Piston 11 Body 316L SS / A479 12 Relief seat PCTFE or PEEK 13 Venting poppet 14 Seat 316L SS/ A479 15 Seat seal PCTFE or PEEK 16 Poppet 431 SS/ A276 17 Poppet spring 32 SS / A313 18 Body plug 316L SS / A479 Wetted lubricants: Silicone-based and synthetic hydrocarbon-based Wetted components listed in italics. Gauge plugs (not shown): 431 SS / A276.

1 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RA4 Series Flow Coefficient: 1.84 Maximum Inlet Pressure: 58 psig (4 bar) Outlet Pressure Ratio: 1:15, 1:4, 1:7 Pressure Ratio 1:15, 1:4, 1:7 3 6 9 12 15 18 4 25 32 2 24 16 58 (4.) 115 (7.), 2175 (15) 15 1 8 218 (15.), 58 (4.), 115 (7.), 2175 (15) 2 4 6 8 1 12 5 Pressure Ratio 1:15, 1:4, 1:7 11 22 33 44 55 15 1 12 8 9 6 145 (1) 2175 (15) 399 (275) 6 4 3 29 (2) 2 7 14 21 28 35

Pressure Regulators Series 11 The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RA4 Series Flow Coefficient: 1.84 Maximum Inlet Pressure: 58 psig (4 bar) Outlet Pressure Ratio: 1:4, 1:7 Pressure Ratio 1:4, 1:7 9 18 27 36 45 3 25 24 2 2 15 1 29 (2) 399 (275) 16 12 8 5 4 8 16 24 32 4 RA6 and RA8 Series Flow Coefficient: 1.84 Maximum Inlet Pressure: 58 psig (4 bar) Outlet Pressure Ratio: 1:15, 1:4, 1:7 Pressure Ratio 1:15, 1:4, 1:7 24 48 72 96 12 4 25 32 24 16 58 (4.) 115 (7.), 2175 (15) 2 15 1 8 218 (15.) 58 (4.), 115 (7.), 2175 (15) 5 16 32 48 64 8

12 Pressure Regulators and Filters The graphs illustrate the change or droop in outlet pressures as the flow rate increases. RA6 and RA8 Series Flow Coefficient: 1.84 Maximum Inlet Pressure: 58 psig (4 bar) Outlet Pressure Ratio: 1:15, 1:4, 1:7 Pressure Ratio 1:15, 1:4, 1:7 75 15 225 3 375 45 15 1 12 2175 (15) 399 (275) 8 9 6 145 (1) 29 (2) 6 4 3 2 5 1 15 2 25 3 RA6 and RA8 Series Flow Coefficient: 1.84 Maximum Inlet Pressure: 58 psig (4 bar) Outlet Pressure Ratio: 1:4, 1:7 Pressure Ratio 1:4, 1:7 15 21 315 42 525 3 25 18 2 15 1 29 (2) 399 (275) 15 12 9 6 5 3 7 14 21 28 35

Pressure Regulators Series 13 Dimensions Dimensions, in inches (millimeters), are for reference only and are subject to change. Series RA4 End Connection Size 1/2 in. Dimensions, in. (mm) A B C D E F 2.83 (72.) 3.7 (78.) 2.13 (54.) 3.72 (94.6) RA6 3/4 in. 5.75 (146) 3.2 (82.) 3.5 (89.) 2.2 (56.) 3.72 (94.6) RA8 1 in. 3.7 (78.) 3.5 (89.) 2.2 (56.) 4.2 (12) 4.56 (116) 7.2 (183) Standard Configuration Top Outlet gauge connection Outlet Inlet Gauge connection Vent connection D E F A Inlet Outlet Dome connection B C Shown with tubing for clarity; tubing not included.

14 Pressure Regulators and Filters Ordering Information Build an RA series regulator ordering number by combining the designators in the sequence shown below. 1 2 3 4 5 6 7 8 9 RA FA 4 A 1-2 - V V K 1 11-15 - GN2 1 Series RA = 58 psig (4 bar) maximum inlet pressure 2 Inlet / Outlet B = Female ISO/BSP parallel thread N = Female NPT FA = ASME B16.5 flange FD = EN 192 (DIN) flange 3 Size 4 = 1/2 in. / DN15 6 = 3/4 in. / DN2 8 = 1 in. / DN25 4Pressure Class Omit designator if flanges are not ordered. A = ASME class 15 B = ASME class 3 C = ASME class 6 E = ASME class 15 F = ASME class 25 M = EN class PN16 N = EN class PN4 5Flange Facing Omit designator if flanges are not ordered. 1 = Raised face smooth 3 = RTJ 6 Body Material 2 = 316L SS 7 Seal Materials V = Fluorocarbon FKM N = Nitrile E = EPDM 8 Diaphragm Materials V = Fluorocarbon FKM N = Nitrile E = EPDM 9 Seat Seal Materials K = PCTFE P = PEEK 1 Ratio (Dome-to-Outlet Pressure) 15 = 1:15➁ 4 = 1:4 7 = 1:7 11 Options GN2 = Gauge connection, see below➀ GN4 = Gauge connection, see below GN5 = Gauge connection, see below➀ None = Standard connection, see below Gauge Connection Configuration Standard GN2 GN4 GN5 Go Gi Go Go Go Gi N = NACE MR175/ISO 15156 G93 = ASTM G93 Level C-cleaned ➀ Not available in combination with flanges. ➁ Outlet control range limited to 2175 psig (15 bar).

Pressure Regulators Series 15 Back-Pressure, Spring-Loaded Regulators BS Series The BS series back-pressure regulators are suitable for most gases and liquids. The BS series regulators feature a choice of sensing types (diaphragm or piston), and seat and seal materials to accommodate a variety of pressure, temperature, and flow conditions. The BS series regulators are available in sizes from 1/4 to 1 1/2 in. with a choice of threaded or flange end connections. The BSH series regulators are high-pressure versions of the BS series regulators, and the LBS series are low-pressure, high-accuracy versions of the BS series regulators. The BS series regulators are available with several options, including a variety of gauge connection configurations, antitamper, special cleaning to ASTM G93 Level C, and NACE MR175/ISO 15156-compliant models. Features Spring-loaded pressure control Diaphragm or piston sensing types Blue knob or screw adjustment 316L SS materials of construction for corrosion resistance Maximum inlet pressure rating: 57 to 1 15 psig (35. to 7 bar) Inlet control pressure range: Up to to 1 15 psig ( to 7 bar) Pressure-Temperature Ratings Seal Material PCTFE PEEK Series Temperature F ( C) BS2 BS(H)4 BS(H)6, 8 4 ( 2) to 95 (35) 58 (4) 149 (65) 3987 (275) 176 (8) 1812 (125) BSH1 BSH15 BSH2 BS2 BS(H)4 BS(H)6, 8 BSH1 BSH15 Fluorocarbon FKM➀, Nitrile, EPDM, FFKM➁ BS1 BS15 Maximum Inlet Pressure / Working Pressure psig (bar) 3625 (25) 1 15 (7) 58 (4) 3625 (25) 115 (7.) ➀ Regulators with fluorocarbon FKM seat seal / O-ring materials limited to 5 F ( 15 C). ➁ Regulators with FFKM seat seal / O-rings materials limited to 14 F ( 1 C). LBS4 57 (35.) Technical Data Performance Ratings BS(H)2 Series Maximum Inlet Pressure➀ psig (bar) Maximum Inlet Control Pressure➀ psig (bar) Flow Coefficient (C v ) Sensing Type Flow Data on Page BS2 5 8 (4) 5 75 (35) BSH2 1 15 (7) 1 15 (7).1 Piston 18 BS(H)4, 6, 8 BS4 1 15 (7.) BSH4 5 8 (4) 46 (28.) diaphragm 5 22 (36) piston 1.84 (.39 in. [1. mm] seat).49 (.19 in. [5. mm] seat) Diaphragm or piston 112 BS6 1 15 (7.) BSH6 5 8 (4) 23 (14.) diaphragm 5 22 (36) piston 1.95 (.39 in. [1. mm] seat).49 (.19 in. [5. mm] seat) Diaphragm or piston 113 BS(H)1, 15 LBS4 BS8 1 15 (7.) BSH8 5 8 (4) 23 (14.) diaphragm 5 22 (36) piston BS1 1 15 (7.) 29 (2.) diaphragm BSH1 3 625 (25) 3 625 (25) piston BS15 1 15 (7.) 29 (2.) diaphragm BSH15 3 625 (25) 3 625 (25) piston 2.7 (.39 in. [1. mm] seat).49 (.19 in. [5. mm] seat) 3.84 7.3 Diaphragm or piston Diaphragm or piston Diaphragm or piston LBS4 57 (35.) 29 (2.) 1.3 Diaphragm 123 114 ➀ For regulators built with flanged connections, pressure may be limited by flange class rating.

16 Pressure Regulators and Filters Back-Pressure, Spring-Loaded Regulators BS Series BS Series Regulator with Diaphragm Sensing and Standard Knob Handle BSH Series Regulator with Piston Sensing and Antitamper Option Seat seal design for low-pressure applications Seat seal design for high-pressure applications Inlet Outlet Inlet Outlet Technical Data Design Series BS2 BSH2 Seat Diameter in. (mm) Inlet and Outlet Connections Gauge Connection Weight (Without Flanges) lb (kg) More Information on Page.87 (2.2) 1/4 in. NPT 1/4 in. NPT 3.3 (1.5) 17 BS4.39 (1.) BSH4 or.19 (5.) BS6.39 (1.) BSH6 or.19 (5.) BS8.39 (1.) BSH8 or.19 (5.) BS1 BSH1 BS15 BSH15.53 (13.5).75 (19.) 1/2 in. NPT, ISO/BSP parallel thread, EN or ASME flanges 3/4 in. NPT, ISO/BSP parallel thread, EN or ASME flanges 1 in. NPT, ISO/BSP parallel thread, EN or ASME flanges 1 in. NPT, ISO/BSP parallel thread, EN or ASME flanges 1 1/2 in. NPT, ISO/BSP parallel thread, EN or ASME flanges 1/4 in. NPT 7.7 (3.5) 111 1/4 in. NPT 9.9 (4.5) 111 1/4 in. NPT 9.9 (4.5) 111 1/4 in. NPT or ISO/BSP parallel thread 1/4 in. NPT or ISO/BSP parallel thread 16.7 (7.6) 116 22. (1) 116 LBS4.31 (8.) 1/2 in. NPT 1/4 in. NPT 5.7 (2.6) 122

Compact, General-Purpose, Spring-Loaded Back-Pressure Regulators BS(H)2 Series Pressure Regulators Series 17 Features Piston sensing Bottom mounting Low-friction piston for better control Options NACE MR175/ISO 15156-compliant models Special cleaning to ASTM G93 Level C Panel mounting kit sold separately no disassembly required Technical Data Series Maximum Inlet Pressure psig (bar) Maximum Inlet Control Pressure psig (bar) BS2 5 8 (4) 5 75 (35) BSH2 1 15 (7) 1 15 (7) Sensing Type Piston Temperature Range F ( C) 4 to 176 ( 2 to 8) See Pressure- Temperature Ratings, page 15. Flow Coefficient (C v ).1 Seat Diameter in. (mm).87 (2.2) Inlet and Outlet Connections 1/4 in. NPT Gauge / Vent Connection Gauge: 1/4 in. NPT Vent: 1/8 in. NPT Weight lb (kg) 3.3 (1.5) See pages 18 to 19 for flow data. Materials of Construction BS2 Series Regulator with Standard Threaded Vent 2 3 4 7 8 9 11 1 9 14 12 13 15 16 9 17 18 1 5 6 Component 1 Knob assembly with adjusting screw, nuts, washer Material / Specification Blue ABS with 431 SS 2 Spring housing cover 431 SS / A276 3 Spring housing 316L SS / A479 4 C-ring A2 5 Spring guide 316L SS / A479 6 Set spring 5CRV4 7 Bottom spring guide 316L SS / A479 8 Backup ring (BSH only) PTFE 9 O-rings EPDM, FKM, FFKM, or nitrile 1 Piston plate 11 Piston 316L SS / A479 12 Overtravel spring 32 SS / A313 13 Piston screw 14 Body plug 316L SS / A479 15 Poppet 431 SS / A276 16 Seat PCTFE or PEEK 17 Seat retainer 316L SS / A479 18 Body 316L SS / A479 Wetted lubricants: Silicone-based and synthetic hydrocarbon-based Wetted components listed in italics. Gauge plugs (not shown): 431 SS / A276.

18 Pressure Regulators and Filters The graphs illustrate the change in inlet or outlet pressure as the flow rate increases. BS(H)2 Series Flow Coefficient:.1 Maximum Inlet Pressure: BS2 58 psig (4 bar); BSH2 1 15 psig (7 bar) Inlet : to 145 psig ( to 1 bar) to 145 psig ( to 1 bar) to 362 psig ( to 25. bar) 2 5 1 15 2 25 3 to 145 psig ( to 1. bar) 12 16 1 Inlet Pressure, psig 12 8 8 6 4 Inlet Pressure, bar 4 2 4 8 12 16 2 BS(H)2 Series Flow Coefficient:.1 Maximum Inlet Pressure: BS2 58 psig (4 bar); BSH2 1 15 psig (7 bar) Inlet : to 575 psig ( to 35 bar) to 575 psig ( to 35 bar) to 575 psig ( to 35 bar), calculated 6 15 3 45 6 75 9 to 2537 psig ( to 175 bar) 36 48 3 Inlet Pressure, psig 36 24 24 18 12 Inlet Pressure, bar 12 6 12 24 36 48 6

Pressure Regulators Series 19 The graphs illustrate the change in inlet or outlet pressure as the flow rate increases. BSH2 Series Flow Coefficient:.1 Maximum Inlet Pressure: 1 15 psig (7 bar) Inlet : to 1 15 psig ( to 7 bar) to 1 15 psig ( to 7 bar) 3 6 9 12 15 12 78 1 65 Inlet Pressure, psig 8 6 4 52 39 26 Inlet Pressure, bar 2 13 2 4 6 8 1

11 Pressure Regulators and Filters Dimensions Dimensions, in inches (millimeters), are for reference only and are subject to change. 2.28 (58.) Bottom Mounting Configuration Top Vent connection 1.26 (32.) Inlet Outlet 5.83 (148).87 (22.) 2 mounting holes, M5 thread,.197 (5.) deep Inlet.67 (17.) Outlet 2 gauge connections Inlet gauge connection Outlet gauge connection Shown with tubing for clarity; tubing not included. 2.15 (54.5) BS2 2.3 (58.5) BSH2 Panel Mounting Kit No disassembly required when using panel mount kit. Panel mounting kit ordering numbers: BS2 series: RS2-P-2 BSH2 series: RSH2-P-2 2.76 (7.) * 2 holes,.22 (5.5) A 3.13 (79.5) A *BS: 2.15 (54.5) *BSH: 2.36 (6.) 2.36 (6.) Panel hole Panel ring Ordering Information Build a BS2 or BSH2 series regulator ordering number by combining the designators in the sequence shown below. 1 2 3 4 5 6 7 8 BS N2-2 - 1 - V V K - N 1 Series BS = 58 psig (4 bar) maximum inlet pressure BSH = 1 15 psig (7 bar) maximum inlet pressure 2 Inlet / Outlet N2 = 1/4 in. female NPT 3 Body Material 2 = 316L SS 4 BS and BSH series 1 = to 145 psig ( to 1. bar) 2 = to 362 psig ( to 25. bar) 3 = to 145 psig ( to 1 bar) 4 = to 2537 psig ( to 175 bar) 5 = to 575 psig ( to 35 bar) BSH series only 6 = to 1 15 psig ( to 7 bar) 5 Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM F = FFKM 6 Piston Seals V = Fluorocarbon FKM N = Nitrile E = EPDM F = FFKM 7 Seat Material BS series K = PCTFE P = PEEK BSH series P = PEEK 8 Options N = NACE MR175/ISO 15156 G93 = ASTM G93 Level C-cleaned

Pressure Regulators Series 111 General-Purpose, Spring-Loaded Back-Pressure Regulators BS(H)4, BS(H)6, and BS(H)8 Series Features Diaphragm sensing: to 46 psig ( to 28. bar) Piston sensing: to 522 psig ( to 36 bar) Threaded vent to monitor seal integrity Options Antitamper Gauge connections choice of 4 configurations NACE MR175/ISO 15156-compliant models Special cleaning to ASTM G93 Level C Technical Data Series BS(H)4 BS(H)6 BS(H)8 Maximum Inlet Pressure psig (bar) BS: 115 (7.) BSH: 58 (4) Maximum Inlet Control Pressure psig (bar) BS4: to 46 psig (28. bar) BS6, 8: to 23 psig (14. bar) BSH: 522 (36) See pages 112 and 114 for flow data. Sensing Type Diaphragm: BS4: to 46 psig (28. bar) BS6, 8: to 23 psig (14. bar) Piston: to 522 psig (36 bar) Temperature Range F ( C) 4 to 176 ( 2 to 8) See Pressure- Temperature Ratings, page 15. Flow Coefficient (C v ) BS4: 1.84 BS6: 1.95 BS8: 2.7 with.39 in. (1. mm) seat; All:.49 with.19 in. (5. mm) seat Seat Diameter in. (mm).39 (1.) for up to 116 psig (8. bar).19 (5.) for 2175 to 522 psig (15 to 36 bar) Connections Inlet and Outlet Size 1/2 in. DN15 3/4 in. DN2 1 in. DN25 Type NPT ISO/BSP parallel thread ASME or EN flange Gauge and Vent Gauge: 1/4 in. NPT Vent: 1/8 in. ISO/BSP parallel thread Weight (Without Flanges) lb (kg) 7.7 (3.5) 9.9 (4.5) Materials of Construction 14 17 16 18 21 BS Series Regulator with Diaphragm Sensing and Standard Knob 1 2 3 4 BSH Series Regulator with Piston Sensing and Antitamper Option 5 6 21 1 12 19 9 2 7 1 22 11 8 1 13 15 Common Components Actuation Sensing Mechanism Component 1 Spring housing 2 Spring guide Material / Specification 316L SS / A479 3 Ball Commercial stainless steel 4 Set spring 32 SS / A313 5 Cap screw A4-8 6 Washer A4 7 Seat seal PCTFE or PEEK 8 Body 316L SS / A479 9 Poppet 431 SS / A276 1 O-rings EPDM, FKM, or nitrile 11 Seat 316L SS / A479 12 Overtravel spring 32 SS / A313 13 Body plug 316L SS / A479 14 Knob assembly with adjusting screw, nuts, washers 15 Antitamper with O-ring, adjusting screw Diaphragm Only Blue ABS with A2-7 316L SS and A2-7 (O-ring same as item 1) 16 Diaphragm EPDM, FKM, or nitrile 17 Diaphragm plate 316L SS / A479 18 Diaphragm screw 316L SS / A479 Piston Only 19 Piston plate 2 Piston 316L SS / A479 21 Backup ring PTFE 22 Piston screw 316L SS / A479➀ Wetted lubricant: Silicone-based, synthetic hydrocarbon-based ➀ BSH4 (range 5 and 6), BSH6 (range 6), and BSH8 (range 6) the material will be Alloy 257. Wetted components listed in italics. Gauge plugs (not shown): 431 SS / A276.

112 Pressure Regulators and Filters The graphs illustrate the change in inlet or outlet pressure as the flow rate increases. BS(H)4 Series Flow Coefficient: 1.84 Maximum Inlet Pressure: BS4 115 psig (7. bar); BSH4 58 psig (4 bar) Regulator Series BSH4 only BS4 and BSH4 3 25 6 9 12 15 18 2175 (15) 16 2 2175 (15) Inlet Pressure, psig 15 1 5 11 (7.) 2 23 (14.) 46 (28.) 116 (8.) 116 (8.) 116 (8.) 58 (4.) 58 (4.) 2175 (15) 4 6 8 1 12 12 8 4 Inlet Pressure, bar BSH4 Series Flow Coefficient:.49 Maximum Inlet Pressure: 58 psig (4 bar) Inlet : to 522 psig ( to 36 bar) to 522 psig (36 bar) 75 15 225 3 375 45 6 5 36 3 Inlet Pressure, psig 4 3 2 24 18 12 Inlet Pressure, bar 1 6 5 1 15 2 25 3

Pressure Regulators Series 113 The graphs illustrate the change in inlet or outlet pressure as the flow rate increases. BS(H)6 Series Flow Coefficient:1.95 Maximum Inlet Pressure: BS6 115 psig (7. bar); BSH6 58 psig (4 bar) Regulator Series BSH6 only BS6 and BSH6 4 25 8 12 16 2 2175 (15) Inlet Pressure, psig 2 15 1 2175 (15) 2175 (15) 116 (8.) 58 (4.) 116 (8.) 116 (8.) 5 58 (4.) 46 (28.) 25 23 (14.) 11 (7.) 2 4 6 8 1 12 14 15 125 1 75 5 Inlet Pressure, bar BSH6 Series Flow Coefficient:.49 Maximum Inlet Pressure: 58 psig (4 bar) Inlet : to 522 psig ( to 36 bar) to 522 psig (36 bar) 75 15 225 3 375 45 6 5 36 3 Inlet Pressure, psig 4 3 2 24 18 12 Inlet Pressure, bar 1 6 5 1 15 2 25 3

114 Pressure Regulators and Filters The graphs illustrate the change in inlet or outlet pressure as the flow rate increases. BS(H)8 Series Flow Coefficient: 2.7 Maximum Inlet Pressure: BS8 115 psig (7. bar); BSH8 58 psig (4 bar) Regulator Series BSH8 only BS8 and BSH8 3 25 6 9 12 15 18 2175 (15) 2175 (15) 16 2 Inlet Pressure, psig 15 1 5 2175 (15) 46 (28.) 58 (4.) 116 (8.) 116 (8.) 116 (8.) 11 23 46 (28.) (7.) (14.) 43 (3.) 2 4 6 8 1 12 12 8 4 Inlet Pressure, bar BSH8 Series Flow Coefficient:.49 Maximum Inlet Pressure: 58 psig (4 bar) Inlet : to 522 psig ( to 36 bar) to 522 psig (36 bar) 75 15 225 3 375 45 6 5 36 3 Inlet Pressure, psig 4 3 2 24 18 12 Inlet Pressure, bar 1 6 5 1 15 2 25 3

Pressure Regulators Series 115 Dimensions Dimensions, in inches (millimeters), are for reference only and are subject to change. Series End Connection Size Dimensions, in. (mm) A B C D E BS(H)4 1/2 in. 9.6 (23) 2.83 (72.) 3.7 (78.) 2.9 (53.) 3.62 (92.) BS(H)6 3/4 in. 9.25 (235) 3.23 (82.) 3.5 (89.) 2.2 (56.) 3.94 (1) BS(H)8 1 in. 9.25 (235) 3.7 (78.) 3.5 (89.) 2.2 (56.) 3.94 (1) 2.72 (69.2) Panel Mounting BS(H)4 only.67 (17.).67 (17.) Configuration Top Gauge connection A Threaded vent connection 1.1 (28.) 1.1 (28.) Inlet Outlet Inlet Outlet D E 4 mounting holes, M6 thread Inlet gauge connection Inlet gauge connection B C Shown with tubing for clarity; tubing not included. Ordering Information Build a BS(H)4, BS(H)6, and BS(H)8 series regulator ordering number by combining the designators in the sequence shown below. 1 2 3 4 5 6 7 8 9 1 11 BS FA 4 A 1-2 - 1 - V V K - GN2 1 Series BS = 115 psig (7. bar) maximum inlet pressure BSH = 58 psig (4 bar) maximum inlet pressure 2 Inlet / Outlet B = Female ISO/BSP parallel thread N = Female NPT FA = ASME B16.5 flange FD = EN 192 (DIN) flange 3 Size 4 = 1/2 in. / DN15 6 = 3/4 in. / DN2 8 = 1 in. / DN25 4Pressure Class Omit designator if flanges are not ordered. A = ASME class 15 B = ASME class 3 C = ASME class 6 E = ASME class 15 F = ASME class 25 M = EN class PN16 N = EN class PN4 5Flange Facing Omit designator if flanges are not ordered. 1 = Raised face smooth 3 = RTJ 6 Body Material 2 = 316L SS 7 Diaphragm sensing 1 = to 43 psig ( to 3. bar) 2 = to 11 psig ( to 7. bar) 3 = to 23 psig ( to 14. bar) 4 = to 46 psig ( to 28. bar)➀ Piston sensing 4 = to 46 psig ( to 28. bar)➁ 5 = to 58 psig ( to 4. bar) 6 = to 116 psig ( to 8. bar) 7 = to 2175 psig ( to 15 bar) 9 = to 46 psig ( to 28 bar) 11 = to 522 psig ( to 36 bar) ➀ BS(H)4 series only. ➁ BS(H)6 and BS(H)8 series only. 8 Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM 9 Diaphragm / Piston O-Rings V = Fluorocarbon FKM Pressure reducing N std = Nitrile E = EPDM 1 Seat Seal Material K = PCTFE P = PEEK 11 Options Back Pressure A = Antitamper std GN1 = Gauge connection, see below GN2 = Gauge connection, see below GN5 = Gauge connection, see below None = Standard connection, see below Gauge Connection Configuration Standard GN1 GN2 GN5 Gi Gi Go Gi Gi Go N = NACE MR175/ISO 15156 G93 = ASTM G93 Level C-cleaned

116 Pressure Regulators and Filters General-Purpose, Spring-Loaded Back-Pressure Regulators BS(H)1 and BS(H)15 Series Features Balanced poppet design Diaphragm sensing: to 29 psig ( to 2. bar) Piston sensing: to 3625 psig ( to 25 bar) High flow capacity Options NACE MR175/ISO 15156-compliant models Special cleaning to ASTM G93 Level C Technical Data Series BS(H)1 Maximum Inlet Pressure psig (bar) BS: 115 (7.) BSH: 3625 (25) Maximum Inlet Control Pressure psig (bar) BS: 29 (2.) BSH: 3625 (25) Sensing Type Diaphragm: to 29 psig (2. bar) Piston: to 3625 psig ( to 25 bar) Temperature Range F ( C) 4 to 176 ( 2 to 8) See Pressure- Temperature Ratings, page 15. Flow Coefficient (C v ) Seat Diameter in. (mm) 3.84.53 (13.5) BS(H)15 7.3.75 (19.) See pages 117 to 12 for flow data. ➀ Regulators with NPT inlet / outlet connections have 1/4 in. NPT gauge connections. Connections Inlet and Outlet Size 1 in. DN25 1 1/2 in. DN4 Type NPT ISO/BSP parallel thread ASME or EN flange Gauge 1/4 in. NPT or ISO/BSP parallel➀ Weight (Without Flanges) lb (kg) 16.7 (7.6) 22. (1.) Materials of Construction 17 8 18 19 2 21 1 BS Series Regulator with Diaphragm Sensing and Soft Seat Seal 1 2 3 4 5 6 7 8 9 1 11 12 13 1 14 15 1 16 BSH Series Regulator with Piston Sensing and Hard Seat Seal 22 1 23 24 25 26 23 1 Common Components Diaphragm Only Piston Only Component Material / Specification 1 Adjusting screw A2-7 2 Set screw nut A2 3 Ball 42 SS (Hardened) 4 Upper spring guide 5 Spring housing assembly 316L SS / A479 6 Set spring 5CRV4 7 Cap screw A4-8 8 Washer A4 9 Bottom spring guide 316L SS / A479 1 O-ring EPDM, FKM, or nitrile 11 Poppet housing 316L SS / A479 12 Seat seal 13 Seat 14 Poppet 15 Body 16 Body plug BS BSH EPDM, FKM, or nitrile PCTFE or PEEK 316L SS / A479 17 Nut A4 18 Diaphragm EPDM, FKM, or nitrile 19 Clamp plate 316L SS / A479 2 Retaining ring 1.4122 Steel 21 Body plate 316L SS / A479 22 Piston 316L SS / A479 23 Backup ring PTFE 24 Piston plate 316L SS / A479 25 Overtravel spring 32 SS / A313 26 Piston screw 316L SS / A479 Wetted lubricant: Silicone-based, synthetic hydrocarbon-based Wetted components listed in italics. Gauge plugs (not shown): 431 SS / A276.

Pressure Regulators Series 117 The graphs illustrate the change in inlet or outlet pressure as the flow rate increases. BS1 Series Flow Coefficient: 3.84 Maximum Inlet Pressure: 115 psig (7 bar) Inlet : to 29 psig ( to 2. bar) to 29 psig ( to 2. bar) to 145 psig ( to 1. bar) to 72 psig ( to 5. bar) to 43 psig ( to 3. bar) 3 6 9 12 15 4 32 25 2 Inlet Pressure, psig 24 16 15 1 Inlet Pressure, bar 8 5 2 4 6 8 1

118 Pressure Regulators and Filters The graphs illustrate the change in inlet or outlet pressure as the flow rate increases. BSH1 Series Flow Coefficient: 3.84 Maximum Inlet Pressure: 3625 psig (25 bar) Inlet : to 145 psig ( to 1 bar) to 145 psig ( to 1 bar) to 58 psig ( to 4. bar) 6 12 18 24 3 2 25 16 Inlet Pressure, psig 12 8 2 15 1 Inlet Pressure, bar 4 5 8 16 24 32 4 BSH1 Series Flow Coefficient: 3.84 Maximum Inlet Pressure: 3625 psig (25 bar) Inlet : to 3625 psig ( to 25 bar) to 3625 psig ( to 25 bar) to 261 psig ( to 18 bar) 24 48 72 96 12 4 25 32 2 Inlet Pressure, psig 24 16 15 1 Inlet Pressure, bar 8 5 16 32 48 64 8

Pressure Regulators Series 119 The graphs illustrate the change in inlet or outlet pressure as the flow rate increases. BS15 Series Flow Coefficient: 7.3 Maximum Inlet Pressure: 115 psig (7 bar) Inlet : to 29 psig ( to 2. bar) to 29 psig ( to 2. bar) to 145 psig ( to 1. bar) to 72 psig ( to 5. bar) to 43 psig ( to 3. bar) 75 15 225 3 375 45 45 36 3 24 Inlet Pressure, psig 27 18 18 12 Inlet Pressure, bar 9 6 5 1 15 2 25 3

12 Pressure Regulators and Filters The graphs illustrate the change in inlet or outlet pressure as the flow rate increases. BSH15 Series Flow Coefficient: 7.3 Maximum Inlet Pressure: 3625 psig (25 bar) Inlet : to 145 psig ( to 1 bar) to 145 psig ( to 1 bar) to 58 psig ( to 4. bar) 3 6 9 12 15 2 125 16 Inlet Pressure, psig 12 8 1 75 5 Inlet Pressure, bar 4 25 2 4 6 8 1 BSH15 Series Flow Coefficient: 7.3 Maximum Inlet Pressure: 3625 psig (25 bar) Inlet : to 3625 psig ( to 25 bar) to 3625 psig ( to 25 bar) to 261 psig ( to 18 bar) 6 12 18 24 3 4 25 32 2 Inlet Pressure, psig 24 16 15 1 Inlet Pressure, bar 8 5 4 8 12 16 2

Pressure Regulators Series 121 Dimensions Dimensions, in inches (millimeters), are for reference only and are subject to change. Series End Connection Size Dimensions, in. (mm) A B C D E F BS(H)1 1 in. 1.5 (266) 3.54 (9.) 3.7 (78.) 2.28 (58.) 1.97 (5.) 1.77 (45.) BS(H)15 1 1/2 in. 1.8 (275) 4.53 (115) 3.78 (96.) 2.44 (62.) 2.1 (51.) 1.77 (45.) 1.97 (5.) Gauge Connection Configuration Top 4.53 (115) 4.53 (115) A Inlet Outlet Inlet F Outlet Only one gauge with a 5 mm (2 in.) or larger dial size fits directly into the body. Inlet gauge connection Outlet gauge connection 2 gauge connections B E C D Shown with tubing for clarity; tubing not included. Ordering Information Build a BS(H)1 and BS(H)15 series regulator ordering number by combining the designators in the sequence shown below. 1 2 3 4 5 6 7 8 9 1 11 BS FA 1 A 1-2 - 1 - V V V - N 1 Series BS = 115 psig (7. bar) maximum inlet pressure BSH = 3625 psig (25 bar) maximum inlet pressure 2 Inlet / Outlet B = Female ISO/BSP parallel thread N = Female NPT FA = ASME B16.5 flange FD = EN 192 (DIN) flange 3 Size 1 = 1 in. / DN25 15 = 1 1/2 in. / DN4 4Pressure Class Omit designator if flanges are not ordered. A = ASME class 15 B = ASME class 3 C = ASME class 6 E = ASME class 15 F = ASME class 25 M = EN class PN16 N = EN class PN4 5Flange Facing Omit designator if flanges are not ordered. 1 = Raised face smooth 3 = RTJ 6 Body Material 2 = 316L SS 7 Diaphragm sensing (BS series only) 1 = to 43 psig ( to 3. bar) 2 = to 72 psig ( to 5. bar) 3 = to 145 psig ( to 1. bar) 4 = to 29 psig ( to 2. bar) Piston sensing (BSH series only) 5 = to 58 psig ( to 4. bar) 6 = to 145 psig ( to 1 bar) 7 = to 261 psig ( to 18 bar) 8 = to 3625 psig ( to 25 bar) 8 Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM 9 Diaphragm / Piston O-Rings V = Fluorocarbon FKM N = Nitrile E = EPDM 1 Seat Seal Material BS series V = Fluorocarbon FKM N = Nitrile E = EPDM BSH series K = PCTFE P = PEEK 11 Options N = NACE MR175/ISO 15156 G93 = ASTM G93 Level C-cleaned

122 Pressure Regulators and Filters High-Sensitivity, Spring-Loaded Back-Pressure Regulators LBS4 Series Features Diaphragm sensing Bottom mounting and panel mounting Options NACE MR175/ISO 15156-compliant model Special cleaning to ASTM G93 Level C Technical Data Series Maximum Inlet Pressure psig (bar) Maximum Inlet Control Pressure➀ psig (bar) Sensing Type LBS4 57 (35.) 29 (2.) Diaphragm Temperature Range F ( C) 4 to 176 ( 2 to 8) See Pressure- Temperature Ratings, page 15. Flow Coefficient (C v ) Seat Diameter in. (mm) See pages 123 and 124 for flow data. ➀ Maximum inlet control pressure limited to 13 psig (9. bar) for regulators built with 316SS diaphragms. Inlet and Outlet Connection Gauge Connection Weight lb (kg) 1.3.31 (8.) 1/2 in. NPT 1/4 in. NPT 5.7 (2.6) Materials of Construction 2 3 7 8 9 1 14 15 16 17 18 LBS Series Regulator with Soft Seat 1 4 5 6 11 12 13 Component 1 Knob assembly with adjusting screw, nuts 2 Spring housing cover 3 Spring housing Material / Specification Blue ABS with 431 SS 316L SS / A479 4 C-ring A2 5 Spring guide 316L SS / A479 6 Set spring 5CRV4 7 Cap screw A4-8 8 Washer A2 9 Bottom spring guide 1 Clamp ring 316L SS / A479 11 Diaphragm PTFE or 316L SS 12 Body 13 Seat retainer 14 Poppet housing 316L SS / A479 15 Seat seal FKM, FFKM, EPDM, or nitrile 16 O-ring PTFE 17 Seat 316L SS / A479 18 Poppet 431 SS / A276 Wetted lubricants: Silicone-based, synthetic hydrocarbon-based Wetted components listed in italics. Gauge plugs (not shown): 431 SS / A276.

Pressure Regulators Series 123 The graphs illustrate the change in inlet or outlet pressure as the flow rate increases. LBS4 Series Flow Coefficient: 1.3 Maximum Inlet Pressure: 57 psig (35. bar) Inlet : to 43 psig ( to 3. bar) to 43 psig ( to 3. bar) 6 15 3 45 6 75 9 4. 5 Inlet Pressure, psig 4 3 2 1 3. 2. 1. Inlet Pressure, bar 1 2 3 4 5 6 LBS4 Series Flow Coefficient: 1.3 Maximum Inlet Pressure: 57 psig (35. bar) Inlet : to 29 psig ( to 2. bar) to 13 psig ( to 9. bar) to 29 psig ( to 2. bar) 4 75 15 225 3 375 45 24 3 2 Inlet Pressure, psig 2 1 16 12 8. Inlet Pressure, bar 4. 5 1 15 2 25 3

124 Pressure Regulators and Filters The graphs illustrate the change in inlet or outlet pressure as the flow rate increases. LBS4 Series Flow Coefficient: 1.3 Maximum Inlet Pressure: 57 psig (35. bar) Inlet : to 43 psig ( to 3. bar) to 43 psig ( to 3. bar) Optional 316L SS Diapragmh 15 3 45 6 75 12 1 7.2 6. Inlet Pressure, psig 8 6 4 4.8 3.6 2.4 Inlet Pressure, bar 2 1.2 1 2 3 4 5 LBS4 Series Flow Coefficient: 1.3 Maximum Inlet Pressure: 57 psig (35. bar) Inlet : to 13 psig ( to 9. bar) to 13 psig ( to 9. bar) Optional 316L SS Diapragmh 3 6 9 12 15 18 3 25 18 Inlet Pressure, psig 2 15 1 15 12 9 6 Inlet Pressure, bar 5 3 2 4 6 8 1 12

Pressure Regulators Series 125 Dimensions Dimensions, in inches (millimeters), are for reference only and are subject to change. 2.28 (58.) 3.52 (89.5) Configuration Top Inlet gauge connection 6.54 (166) Vent connection Inlet Outlet Inlet 1.42 (36.) 2.83 (72.).75 (19.) Outlet 2 gauge connections 1.76 (44.7) 3.52 (89.5).83 (21.) 2.48 (63.) Inlet gauge connection Shown with tubing for clarity; tubing not included. Bottom Mounting Panel Mounting 1.18 (3.) 2.83 (72.) Panel hole: 2.4 (61.) 2 mounting holes for M5 2 screws 4 mounting holes M6 thread,.39 (1.) deep 3.3 (77.) Ordering Information Build an LBS4 series regulator ordering number by combining the designators in the sequence shown below. 1 2 3 4 5 6 7 8 LBS N4-2 - 1 - T T V - N 1 Series LBS = 57 psig (35. bar) maximum inlet pressure 2 Inlet / Outlet N4 = 1/2 in. female NPT 3 Body Material 2 = 316L SS 4 1 = to 43 psig ( to 3. bar) 2 = to 13 psig ( to 9. bar) 3 = to 29 psig ( to 2. bar) 5 Seal Material T = PTFE 6 Diaphragm T = PTFE M = 316L SS: only for to 43 psig ( to 3. bar) and to 13 psig ( to 9. bar) pressure control ranges 7 Seat Seal Material V = Fluorocarbon FKM N = Nitrile E = EPDM F = FFKM 8 Options N = NACE MR175/ISO 15156 G93 = ASTM G93 Level C-cleaned

126 Pressure Regulators and Filters Additional Products For additional Swagelok pressure regulators, see the Pressure Regulators catalog, MS-2-23. For tank blanketing regulators, see the Tank Blanketing Pressure Regulators, Series catalog, MS-2-431. For Swagelok pressure gauges, see the Industrial and Process Pressure Gauges catalog, MS-2-17. For sanitary pressure regulators, see the Sanitary Pressure Regulators, Series catalog, MS-2-436. For Swagelok tube fittings products, see the Gaugeable Tube Fittings and Adapter Fittings catalog, MS-1-14. series pressure regulators are not Safety Accessories as defined in the Pressure Equipment Directive 214/68/EU. Do not use the regulator as a shutoff device. Caution: Do not mix or interchange parts with those of other manufacturers. MS-2-43, RevH, October 217

2024 © autodocbox.com Privacy Policy | Terms of Service | Feedback