Nat Gas & Propane
Adjustable Gas Regulator
Low Flow / Natural Gas & Propane
Non-relieving regulator designed for low-flow natural gas and propane applications requiring stable pressure control. Provides precise adjustment with optional gauge and mounting configurations for flexible installation. Built with internal filtration and optional NACE construction for reliable performance in demanding environments.
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Highlights
- Superior regulation characteristics and excellent stability for lower flow service
- UL Listed (standard P32); NACE construction available
- Square head adjustment screw for easy in-field calibration
- 60-mesh internal screen protects downstream equipment from harmful particles
- Non-relieving design; relief valve recommended per NFPA 58
- Optional handwheel adjustment, output pressure gauge, and mounting bracket
- Temperature range 0°F to 160°F; maximum inlet pressure 250 PSIG (17 BAR)
Application
- Pneumatic controllers, valve positioners, and actuation supply regulation
- Fuel gas and compressed air pressure regulation for lower flow applications
- Commercial and light industrial gas regulation requiring UL-listed performance
- Corrosive service applications using NACE construction option
Preset Gas Regulator
Fixed Pressure / Natural Gas & Propane
Preset regulator designed to deliver fixed outlet pressure for applications requiring tamper-resistant operation. Provides consistent performance with internal filtration to protect downstream equipment. Built with UL-listed construction and optional NACE materials for use in corrosive environments.
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Highlights
- Factory-preset to exact outlet pressure; ideal for tamper-resistant applications
- UL Listed (standard P36); NACE construction available
- 60-mesh internal screen protects downstream equipment from harmful particles
- Releases undesirable moisture from the gas stream
- Non-relieving design; relief valve recommended per NFPA 58
- 1/4″ NPT port; outlet ranges 0–20, 20–40, and 40–60 PSIG
- Maximum inlet pressure 250 PSIG (17 BAR); sensitivity 1″ water column
Application
- Tamper-resistant pressure regulation on pneumatic controllers and valve positioners
- Fuel gas and actuation supply pressure regulation requiring factory-preset accuracy
- Commercial and light industrial gas regulation where re-adjustment must be prevented
- Corrosive service applications using NACE construction option
High Flow Gas Regulator
Adjustable / Natural Gas & Propane
High-flow non-relieving regulator designed for natural gas and propane applications requiring increased capacity and stable pressure. Features balanced internal design for reliable shutoff and performance in enclosed or high-volume systems. Built with UL-listed construction for dependable operation in production environments.
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Highlights
- Balanced pintle design for stable, accurate regulation with high flow capacity
- Flow capacity of 110 SCFM (16.5 Mbtu/hr); maximum inlet pressure 400 PSIG
- Bellofram rolling diaphragm for accurate, responsive pressure sensing
- Bubble-tight, non-relieving shutoff; relief valve recommended per NFPA 58
- UL Listed; suitable for enclosed space and high volume applications
- Port sizes 1/2″ and 3/4″ NPT; outlet ranges 0–10, 0–30, 0–60, 0–125 PSIG
- Temperature range -40°F to 200°F; T-bar adjustment standard
Application
- High-volume fuel gas and actuation supply regulation
- Pneumatic controllers and valve positioners requiring high flow capacity
- Enclosed space gas regulation where UL listing and bubble-tight shutoff are required
- Compressed air and natural gas regulation requiring balanced pintle performance
High Flow Preset Regulator
Fixed Pressure / Natural Gas & Propane
High-flow preset regulator designed for stable outlet pressure control in natural gas and propane systems. Features a balanced internal design to minimize pressure fluctuation and maintain consistent output. Built for high-capacity applications with reliable performance in enclosed and high-demand environments.
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Highlights
- Patented balanced pintle design eliminates output pressure variation from inlet fluctuations
- Exceptional flow capacity of 260 SCFM (27 Mbtu/hr); maximum inlet pressure 400 PSIG
- Bellofram rolling diaphragm for highly sensitive and accurate pressure sensing (1/2″ W.C.)
- Bubble-tight, non-relieving shutoff; relief valve recommended per NFPA 58
- UL Listed; suitable for enclosed space and high volume applications
- Port sizes 3/8″, 1/2″, 3/4″, and 1″ NPT; outlet ranges 0–30, 0–60, 0–125 PSIG
- Temperature range -40°F to 200°F; T-bar adjustment standard
Application
- High-volume fuel gas and actuation supply regulation
- Applications requiring minimal supply pressure sensitivity on regulated output
- Pneumatic controllers and valve positioners requiring maximum flow capacity
- Enclosed space gas regulation where UL listing and bubble-tight shutoff are required
General Purpose
High Pressure Instrument Regulator
Pressure Reduction / Instrument Air & Gas
Instrument supply regulator designed for high-pressure gas reduction and stable output in instrumentation systems. Supports a wide range of inlet and outlet pressures with multiple port configurations for flexible installation. Built for reliable performance with durable internal components and extended service life.
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Highlights
- Maximum inlet pressure 6,000 PSIG (414 BAR); outlet ranges from 0–30 to 0–225 PSIG
- Three standard outlet ports — the only regulator of its type with this feature
- Six spring ranges for precise downstream pressure control
- Rotatable valve disk block provides fresh sealing surface without full replacement
- Both tamper-resistant and T-handle adjustment assemblies supplied standard
- Available in three body materials to suit application and budget requirements
- Temperature range -40°F to 225°F (-46°C to 106°C)
Application
- First cut of high-pressure natural gas to control valve supply pressure
- Natural gas instrumentation column supply regulation
- First stage pressure reduction for catalytic heaters, valve actuators, and pressure controllers
- Chemical injection pump supply pressure regulation
General Purpose Instrument Regulator
Standard & Nace / Corrosive Service
Instrument supply regulator designed for precision control in general purpose and corrosive service. Available in standard and NACE-compliant configurations for use in demanding oilfield applications. Built for consistent performance with stable output and reliable operation across varying conditions.
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Highlights
- Available in standard (P40) and NACE MR0175 compliant (P40 NACE) versions
- Superior performance in regulated pressure vs. flow, repeatability, and stability
- Spring ranges from 0–10 PSIG to 0–120 PSIG; soft relief seat on standard P40
- Diecast aluminum housing; vinyl paint (P40) or epoxy paint (P40 NACE) finish
- Full flow gauge port doubles as an additional outlet port
- Knob adjustment option available; pressure and leak tested before shipment
- P40 NACE has metal-on-metal relief seat; max gas consumption 6 SCFH
Application
- Pilot-operated level, pressure, and flow controllers and pneumatic instruments
- Instrumentation supply regulation on standard and corrosive service environments
- Oilfield instrument supply in sour gas environments requiring NACE MR0175 compliance
- General purpose pressure regulation requiring superior repeatability and stability
Filter Regulator
Pressure Control / Integrated Filtration
Filter regulator designed to combine pressure regulation and filtration in a single compact unit. Provides stable output pressure while removing contaminants to protect downstream equipment. Built with integrated filtration and configurable options for reliable performance across a wide range of applications.
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Highlights
- Integral 40-micron self-cleaning filter eliminates the need for a separate upstream filter
- Self-relieving design with standard tapped vent; non-relieving option available
- Output ranges from 0–10 PSIG to 0–120 PSIG; NACE version available
- 5-micron filter option for applications requiring finer filtration
- Knob adjustment option available for convenient manual pressure setting
- Multiple mounting options for flexible installation configurations
- Superior regulation characteristics, stability, and repeatability
Application
- Instrumentation and control valve supply filtration and pressure regulation
- Pneumatic controller and valve positioner supply in clean and corrosive environments
- Applications requiring combined filtration and pressure regulation in one compact device
- Oilfield and process instrumentation requiring NACE-compliant filter regulation
Stainless Steel Filter Regulator
Corrosive Service / Pressure Control & Filtration
Stainless steel regulator and filter regulator designed for use in corrosive gas and harsh service environments. Provides reliable pressure control and filtration with durable construction for extended service life. Available in multiple configurations to meet demanding application requirements.
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Highlights
- Full stainless steel construction for sour gas, corrosive, and offshore applications
- Available as regulator (RX), filter regulator with manual drain (FR), or auto drain (AR)
- Port sizes 1/4″, 3/8″, 1/2″, 3/4″, and 1″ NPT; output ranges from 3–30 to 15–150 PSIG
- Low droop, excellent stability, and tapped vent standard
- 5-micron filter option and non-relieving configuration available
- Hex head adjustment option for secure, tamper-resistant pressure setting
- NACE MR0175 compliant wetted parts for H2S and sour service
Application
- Sour gas and corrosive gas instrumentation supply regulation
- Offshore and marine installation pressure regulation requiring full stainless construction
- Corrosive environment control valve and pneumatic instrument supply
- Applications requiring combined stainless steel filtration and regulation
General Purpose Instrument Regulator
Standard & Nace / Corrosive Service
Instrument supply regulator designed for precise pressure control in pilot-operated systems and pneumatic instrumentation. Provides stable, low-sensitivity output for consistent performance in demanding control applications. Available in standard and NACE-compliant configurations for corrosive service environments.
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Highlights
- Flow capacity 80 SCFM (2,266 LPM); sensitivity 1/4″ W.C. (6.4 mm)
- Supply pressure sensitivity less than 0.05 PSIG per 25 PSIG supply variation
- Port sizes 1/4″, 3/8″, and 1/2″ NPT; spring ranges from 0–15 to 2–150 PSIG
- Maximum input/supply pressure 250 PSIG (17.2 BAR)
- Available in standard and NACE wetted parts construction
- Relieving and non-relieving options; square head screw or knob adjustment
- Diecast aluminum housing; vinyl paint (P70) or epoxy paint (P70 NACE) finish
Application
- Pilot-operated level, pressure, and flow controllers and pneumatic instruments
- Instrumentation supply regulation on standard and corrosive service environments
- Oilfield instrument supply in sour gas environments requiring NACE wetted parts
- High precision control applications requiring superior supply pressure sensitivity
Direct Operated Gas Regulator
Pressure Control / Commercial & Industrial
Direct operated pressure regulator designed for precise control in commercial and industrial gas applications. Maintains stable output despite changes in supply pressure for consistent performance. Available in multiple configurations to suit a wide range of operating conditions.
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Highlights
- Balanced diaphragm design minimizes supply pressure variation effects on output
- Available in P133L (low pressure), P133H (high pressure), and P133K (extended range) versions
- Maximum operating inlet: 60 PSIG (L/H) or 150 PSIG (K); emergency inlet to 125/150 PSIG
- 2″ NPT port; end connections include NPT, 125 FF flange, and 150 RF flange
- Restrictor collar options at 25%, 40%, and 60% for flow adjustment
- Temperature range -40°F to 200°F (-40°C to 93°C)
- Suitable for monitoring regulator applications in addition to primary regulation
Application
- Industrial and commercial furnace and burner fuel gas regulation
- Compressor and gas engine fuel supply requiring accurate, stable pressure control
- Natural gas and propane regulation on industrial process equipment
- Monitoring regulator service on gas distribution systems requiring high sensitivity
Low Pressure Gas Regulator
Compact Design / Light Duty Applications
Compact pressure regulator designed for natural gas, air, and propane service in light industrial and commercial applications. Provides dependable pressure control with flexible installation options. Built for reliable operation across a variety of low pressure systems.
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Highlights
- Straight and 90-degree angle body configurations available
- Available in relieving and non-relieving versions
- Suited for natural gas, air, and propane in commercial, residential, and light industrial service
- Port size combinations from 3/4″ x 3/4″ to 1-1/4″ x 1-1/4″ NPT
- Iron body and bonnet with aluminum; nitrile diaphragm and diaphragm assembly
- Multiple spring ranges to suit a wide range of low-pressure outlet requirements
- Temperature range -20°F to 150°F (-29°C to 66°C)
Application
- Burner and unit heater fuel gas regulation in commercial and light industrial facilities
- Natural gas and propane pressure regulation for residential and commercial appliances
- Low-pressure gas service requiring a compact, versatile regulator
- LP gas secondary regulation service
Gas Regulator With Low Pressure Shut-Off
Safety Shutdown / Pressure Protection
Pressure regulator designed to maintain stable output while providing automatic shutoff if downstream pressure drops below a set point. Ideal for applications requiring added safety and protection against system failure. Compact design with flexible port configurations for easy installation.
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Highlights
- Internal relief device standard; low pressure cut-off (LPCO) version available
- Port size combinations from 3/4″ x 3/4″ to 1-1/4″ x 1-1/4″ NPT
- Iron body and bonnet with aluminum diaphragm assembly; stainless steel vent screen and pin
- Nitrile diaphragm with zinc/nitrile diaphragm assembly
- Non-asbestos CGR 2750 gaskets for reliable, compliant sealing
- Multiple spring ranges to match a wide variety of low-pressure outlet requirements
- Temperature range -20°F to 150°F (-29°C to 66°C); approximate weight 5.63 lbs
Application
- Burner and unit heater fuel gas regulation in commercial and light industrial service
- Natural gas and propane regulation requiring low pressure cut-off protection
- Residential and commercial appliance gas supply regulation
- LP gas secondary regulation requiring a compact, accurate regulator
Service Gas Regulator
Standard Duty / General Applications
Service pressure regulator designed to reduce and maintain stable downstream gas pressure across industrial and commercial applications. Provides smooth, consistent control while helping protect downstream equipment from pressure fluctuations. Built for reliable performance in general service environments.
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Highlights
- Port sizes 1-1/4″, 1-1/2″, 1-1/2″ x 2″, and 2″ NPT; six orifice sizes from 1/4″ to 1-3/16″
- End connections: NPT, 150 RF flange (steel units), or 125 FF flange (iron units)
- Maximum emergency outlet 15 PSIG; designed to minimize downstream pressure shock
- Temperature range -20°F to 180°F (-29°C to 82°C)
- Ductile iron or WCB steel body; multiple spring range options available
- Adjustable design allows field calibration to specific downstream pressure requirements
- Compact and versatile for a wide range of service and distribution applications
Application
- Compressor and gas engine fuel supply regulation
- General service regulator applications on commercial and industrial gas systems
- Distribution system pressure reduction and control
- Applications requiring shock reduction to protect downstream safety equipment
Heavy Duty Service Regulator
Compressors & Engines / High Demand
Service pressure regulator designed for dependable pressure control in compressors, gas engines, and general industrial applications. Offers flexible installation options and consistent performance across a range of operating conditions. Built on a proven platform for reliable long-term use.
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Highlights
- Port sizes 1-1/4″, 1-1/2″, 1-1/2″ x 2″, and 2″ NPT; six orifice sizes from 1/4″ to 1-3/16″
- End connections: NPT, 150 RF flange (steel), or 125 FF flange (iron)
- Maximum emergency outlet 15 PSIG; ductile cast iron or WCB steel body
- Multiple bonnet orientation options: 12, 3, 6, and 9 o’clock positions
- Port orientation in up, down, right, or left positions for installation flexibility
- Adjustable design supports field calibration to specific downstream pressure requirements
- Temperature range -20°F to 180°F (-29°C to 82°C)
Application
- Compressor and gas engine fuel supply pressure regulation
- General service regulator applications on commercial and industrial gas systems
- Distribution system pressure reduction requiring flexible installation orientation
- Applications requiring flanged or threaded end connections on service regulator service
General Purpose Service Regulator
Stable Pressure / Industrial Use
Service pressure regulator designed to reduce and maintain stable downstream pressure in gas systems. Helps minimize pressure shock and protect downstream equipment during changing conditions. Built for reliable performance across industrial and commercial applications.
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Highlights
- Port sizes 1-1/4″, 1-1/2″, 1-1/2″ x 2″, and 2″ NPT; orifice sizes 3/16″ to 3/4″
- End connections: NPT, 150 RF flange (steel), or 125 FF flange (iron)
- Maximum emergency outlet 15 PSIG; designed to minimize downstream pressure shock
- Temperature range -20°F to 180°F (-29°C to 82°C)
- Multiple vent and body orientation positions for installation flexibility
- Adjustable design for field calibration to specific downstream pressure requirements
- Ductile iron or WCB steel body with aluminum bonnet and lower casing
Application
- Compressor and gas engine fuel supply pressure regulation
- General service regulator applications on commercial and industrial gas systems
- Distribution pressure reduction where shock minimization protects downstream equipment
- Applications requiring flexible vent and body orientation for piping layout constraints
Fast Acting Service Regulator
Rapid Response / Pressure Stabilization
Fast-acting service pressure regulator designed to stabilize downstream pressure and reduce system fluctuations. Provides consistent control for compressors, gas engines, and general service applications. Built for dependable operation with low maintenance requirements.
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Highlights
- Suitable for a broad range of compressor, gas engine, and service regulator applications
- Nitrile diaphragm and molded nitrile seat assembly for reliable shutoff
- Ductile iron body with aluminum bonnet and zinc closing cap
- Maximum emergency outlet 15 PSIG
- End connections: NPT or 2″ 125 FF flange
- Port sizes 1-1/2″, 1-1/2″ x 2″, and 2″ NPT; orifice sizes 1/4″ to 3/4″
- Fast-acting design minimizes pressure shock and prevents nuisance safety shutdowns
Application
- Compressor and gas engine fuel supply pressure regulation
- General service regulator applications on commercial and industrial gas systems
- Applications requiring fast pressure response to protect downstream safety equipment
- Distribution system pressure reduction in 1-1/2″ and 2″ piping configurations
General Purpose Gas Regulator
Direct Operated / Flexible Applications
Direct operated pressure regulator designed to maintain stable downstream pressure across a wide range of gas applications. Offers flexible configurations to support various system requirements. Built for reliable performance in industrial and commercial service.
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Highlights
- Configurable as a pressure reducing regulator, pressure-loaded regulator, switching valve, or monitor
- Available with non-relieving, internal relief, or monitoring regulator options
- Port sizes 3/4″ and 1″ NPT; six orifice sizes from 1/8″ to 9/16″
- Maximum emergency outlet 10 PSIG; cast iron body construction
- Spring case vent connection 1/4″ NPT; control line connection 1/2″ NPT
- Weight approximately 14 lbs; temperature range -20°F to 180°F
- Adjustable design for field calibration to specific downstream pressure setpoints
Application
- Industrial and commercial gas regulation requiring versatile configuration options
- Compressor fuel supply and gas engine pressure regulation
- Monitoring regulator service requiring a compact, multi-function device
- Switching valve applications on gas distribution and control systems
High Flow Gas Regulators
Distribution & Production Systems
High flow gas regulators designed for demanding distribution and production applications. Provides stable pressure control across a wide range of flow conditions. Built for durability and flexibility in upstream and midstream service environments.
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Highlights
- Available in five configurations: P627, R627, F627, L627, and W627
- Outlet pressure ranges from 5 to 500 PSIG; maximum inlet up to 2,000 PSIG
- Body sizes 3/4″, 1″, and 2″ NPT; six orifice sizes from 3/32″ to 1/2″
- Multi-position body and spring case for broad installation versatility
- NACE construction and external registration versions available
- Durable powder-coated epoxy exterior for demanding field environments
- Temperature range -20°F to 180°F; LP gas and liquid service variants available
Application
- Farm tap, gate station, and district regulation on natural gas distribution systems
- Fuel gas and pressure reduction on oil and gas production and gathering facilities
- Pressure-factor measurement and billing requiring pilot-operated accuracy
- LP gas and liquid service requiring a proven high flow regulator platform
High Flow Gas Regulator With Relief
Pressure Control + Overpressure Protection
High flow regulator and relief valve combination designed for systems requiring both pressure control and overpressure protection. Delivers consistent performance in high capacity applications. Built for durability in harsh and corrosive environments.
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Highlights
- Available in pressure reducing (P630) and relief valve (P630R) configurations
- Maximum inlet pressure 1,500 PSIG; outlet pressure range 3 to 500 PSIG
- Stainless steel internals standard; all steel units NACE MR0175 compliant
- Body sizes 1″ and 2″ NPT; five orifice sizes from 1/8″ to 1/2″
- Durable powder-coated epoxy exterior for demanding field environments
- Neoprene or fluorocarbon diaphragm options available
- High flow capacity across a broad range of outlet and relief pressure settings
Application
- High pressure gas regulation and relief on oil and gas production and processing facilities
- Overpressure protection at compressor stations, refineries, and high pressure plants
- Sour gas and corrosive environments requiring NACE MR0175 compliant materials
- High flow pressure reduction and relief on gas gathering and transmission installations
Back Pressure Regulators
Back Pressure Regulator With Relief
Upstream Control + Overpressure Protection
Back pressure regulator designed to control upstream pressure while providing overpressure protection. Opens at a set point to relieve excess pressure and maintain system stability. Built for reliable operation across a wide range of process conditions.
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Highlights
- Functions as both a back pressure regulator and a relief valve in one device
- Maximum inlet 300 PSIG (WCB steel/SS); 300 PSIG at 300°F (cast iron)
- Body sizes 3/4″ and 1″ NPT; 9/16″ orifice; five pressure range options from 5 to 200 PSIG
- Body, bonnet, and diaphragm case options in cast iron, steel, and stainless steel
- Diaphragm options: 302SS, fluorocarbon, neoprene, and Monel
- Metal-to-metal or metal-to-elastomer valve plug for application-specific shutoff performance
- Temperature range: -40°F to 406°F (cast iron); -20°F to 450°F (steel)
Application
- Pulp and paper boilers, heaters, and PM drum pressure control
- Chemical boilers and process heaters requiring back pressure regulation
- Water and wastewater system overpressure protection
- Steam injection service on oil and gas production equipment
Standard Back Pressure Regulator
Adjustable Upstream Pressure Control
Back pressure regulators designed to control upstream pressure while providing reliable overpressure protection. Delivers stable performance with adjustable set points for a wide range of applications. Built for consistent operation with minimal maintenance.
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Highlights
- Available in direct-operated (P289) and pilot-operated (F289) configurations
- Port sizes 3/4″ to 2″ NPT; relief set pressure ranges from inches W.C. to 100 PSIG
- High flow throttling-type design with tight shutoff capability
- Large diaphragm area for fast, smooth response especially in low-pressure service
- Pilot-operated version provides superior accuracy with minimal pressure buildup at setpoint
- Compact design suitable as a direct replacement for standard relief valves
- Temperature range -20°F to 150°F with nitrile elastomers
Application
- Fuel gas and gas gathering overpressure relief service
- Replacement of standard relief valves requiring an adjustable set point
- Overpressure protection on low and medium pressure gas distribution systems
- Applications requiring high flow relief with fast, accurate response
Pilot-Operated Back Pressure Regulator
High Flow Control + Overpressure Protection
Pilot-operated regulator designed to provide both overpressure protection and upstream pressure control. Delivers accurate response and stable performance in high flow gas or liquid applications. Built for reliable operation where protection and control are both required.
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Highlights
- Pilot-operated design for accurate pressure control and fast relief response
- Suitable for both gas and liquid service applications
- PL82 Series pilot with nitrile or fluorocarbon (FKM) diaphragm options
- Body in ductile iron or WCB steel; stainless steel valve plug guide standard
- PTFE backup rings and nylon gaskets for broad chemical compatibility
- Compact design with high flow capacity relative to installation footprint
- Configurable as back pressure regulator or relief valve
Application
- Gas separator relief and back pressure control on production facilities
- Distribution system relief device service
- High flow gas and liquid overpressure protection on processing equipment
- Pilot-operated back pressure regulation on oil and gas gathering systems
Back Pressure Regulator With Integral Pilot
Controlled Venting / Non-Vent Applications
Back pressure regulator designed to maintain consistent upstream pressure in gas and air systems. Features an integrally mounted pilot that automatically relieves excess pressure to stabilize system performance. Available in venting and non-vent configurations for applications where atmospheric discharge is restricted.
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Highlights
- Integrally mounted pilot for accurate upstream pressure control; intermittent-bleed design
- P5301 Non-Vent variant routes actuation gas downstream rather than to atmosphere
- ANSI Class VI bubble-tight shutoff; NACE MR0175-compliant construction standard
- Available in 2″ and 3″ FNPT or Class 150 RF end connections; reduced and full port options
- Pressure ranges: 5-125 PSI or 15-285 PSI; design pressure 300 PSIG
- Stainless steel internals, tubing, and fittings; temperature range -20°F to 400°F
Application
- Back pressure control on separators, heater treaters, and compressor stations
- Gas gathering system pressure control
- Suction control valve for compressors
- Applications requiring non-venting back pressure regulation (P5301)
Pressure Reducing Regulators
Large Capacity Pressure Reducing Regulator
High Flow / Multi-Service Applications
Pressure reducing regulator designed for high-capacity service across gas, steam, and liquid applications. Handles a wide range of operating conditions with durable construction and multiple material options. Built for reliable performance in demanding process environments.
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Highlights
- Direct-operating, large capacity design for gas, liquid, and steam service
- Body, bonnet, and diaphragm case options in cast iron, steel, and stainless steel
- Diaphragm options: 302SS, fluorocarbon, neoprene, or Monel for broad compatibility
- Supply valve shutoff in metal-to-metal or metal-to-elastomer configurations
- Available in four spring ranges to cover a wide outlet pressure range
- All vented ports are tapped for controlled vent piping
- Suited for high temperature steam injection and chemical process service
Application
- Steam injection pressure reduction on oil and gas production equipment
- In-line gas and liquid pressure control on industrial process systems
- Chemical boilers and process heaters requiring large capacity pressure regulation
- Water and wastewater systems requiring high-capacity pressure reduction
Pilot Operated Pressure Reducing Regulator
High Flow / High Accuracy Control
Pilot-operated pressure reducing regulator designed for high-flow, high-accuracy pressure control. Delivers stable output with fast response and reduced pressure drop compared to direct-acting designs. Built for demanding applications requiring consistent regulation under varying conditions.
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Highlights
- Double-diaphragm pilot for fast response and high accuracy with reduced droop
- Pilot versions available from 2–20 PSIG through 35–100 PSIG; max pilot pressure up to 600 PSIG
- Field-exchangeable pilot assemblies allow conversion between high and low pressure versions
- Elastomer seat disk or O-ring against flat orifice seat for inlet pressures above 250 PSIG
- Loading pressure bleeds downstream with no atmospheric relief
- Body in ductile iron or WCB steel; stainless steel and brass orifices in pilot regulator
- Temperature range -20°F to 180°F (nitrile/neoprene); 0°F to 300°F (fluorocarbon)
Application
- Compressor station and gate station service requiring pilot-operated accuracy
- High-accuracy gas pressure regulation on industrial and commercial facilities
- Large-flow pressure reduction on natural gas distribution and transmission systems
- Applications requiring field conversion between high and low pressure pilot operation
Pressure Reducing Regulator with Integral Monitor
Primary + Backup Pressure Protection
Pressure reducing regulator with built-in monitoring for added system protection and reliability. Maintains stable downstream pressure while providing backup regulation in the event of primary regulator failure. Designed for applications requiring consistent control and added safety.
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Highlights
- Integral monitoring function provides built-in backup regulation on regulator failure
- Internal relief valve limits downstream pressure during transient overpressure events
- Fast-acting design minimizes pressure shock and prevents nuisance safety equipment shutdowns
- Port sizes up to 2″ NPT; multiple orifice and spring range options available
- Suitable for commercial, industrial, gate, and gas engine control applications
- Multiple spring and monitor spring combinations to match specific pressure requirements
- Ductile iron or WCB steel body construction
Application
- Commercial and industrial gas distribution requiring integrated monitoring and relief
- Gate station applications requiring backup regulation capability
- Gas engine control service requiring fast-acting pressure response
- Applications where a single device must provide regulation, monitoring, and relief
Pilot-Operated Pressure Reducing Regulator
High Flow Control + Failsafe Backup
Pilot-operated pressure reducing regulator designed for high flow gas service with precise control. Delivers fast response and stable downstream pressure across varying demand conditions. Built for reliable performance in large volume applications.
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Highlights
- Pilot-operated design with PL81 or PL84 pilot; output ranges from inches WC up to 100 PSIG depending on pilot selection
- Body sizes 2″ and 4″; NPT, 150 RF, and 300 RF end connections; WCB steel body with 316 stainless trim
- Maximum main valve inlet pressure 400 PSIG; maximum pilot supply pressure 250 PSIG
- Linear CF8M cage (2″) and noise reduction CF8M cage (4″) options; nitrile or fluorocarbon elastomers
- Pilot assemblies field-exchangeable between high and low pressure configurations without removing the valve from line
- Loading pressure bleeds downstream with no atmospheric relief; travel indicator available
- Temperature range -20°F to 180°F (nitrile) or 0°F to 300°F (fluorocarbon)
Application
- City and district gate stations requiring large-volume, accurate pressure control
- Commercial buildings, boilers, furnaces, ovens, and industrial plant air systems
- Working monitor regulator configurations using upstream wide-open or P600 pilot setups
- High-flow industrial gas distribution where pilot-operated accuracy is required over direct-operated alternatives
Pressure Reducing Regulator With Integral Pilot
Self-Actuating / Stable Output Control
Pressure reducing regulator designed to maintain consistent downstream pressure in gas and air systems. Features an integrally mounted pilot that automatically adjusts flow to stabilize outlet pressure under changing conditions. Available in venting and non-vent configurations for applications where atmospheric discharge is restricted
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Highlights
- Integrally mounted pilot for accurate downstream pressure control; intermittent-bleed design
- P5351 Non-Vent variant routes actuation gas downstream rather than to atmosphere
- ANSI Class VI bubble-tight shutoff; NACE MR0175-compliant construction standard
- Available in 2″ and 3″ FNPT or Class 150 RF end connections; reduced and full port options
- Pressure ranges: 5-125 PSI or 15-285 PSI; design pressure 300 PSIG
- Stainless steel internals, tubing, and fittings; temperature range -20°F to 400°F
Application
- Downstream pressure regulation on compressor stations and gas gathering systems
- Pressure reducing service on separators and process equipment
- Applications requiring non-venting pressure reducing regulation (P5351)