BelGAS 627 Series
HIGH FLOW GAS PRESSURE REGULATOR
Spring-loaded, direct-operated gas regulator designed for high-flow pressure control across a wide range of applications. Built for durability and installation flexibility, it delivers stable downstream pressure in both low and high pressure systems. Ideal for general gas regulation where reliability and flow capacity are critical.
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Highlights
- Spring-loaded, direct-operated design; suitable for low and high pressure gas service
- Body sizes 3/4″, 1″, and 2″ NPT; orifice sizes 3/32″ through 1/2″
- Outlet pressure range 5–500 PSIG; flow capacities up to 172,000 SCFH (0.6 S.G. natural gas)
- Maximum inlet body pressure up to 2000 PSIG (steel/SS); nitrile, nylon, and fluorocarbon seat options
- Diaphragm options: nitrile or fluorocarbon (low pressure), neoprene (high pressure)
- NACE MR0175 construction available; aluminum and stainless steel orifice options
- Powder-coated epoxy exterior; temperature range -20°F to 180°F (-40°F to 180°F on CF8M body)
Application
- Farm tap and gate regulation on natural gas distribution systems
- Monitoring regulator service on gas distribution and transmission pipelines
- Fuel gas supply for engines, heaters, and burners
- Gas gathering and pressure reduction on production facilities
HIGH FLOW GAS REGULATOR WITH INTERNAL RELIEF
High-flow gas regulator with integrated internal relief for overpressure protection. Automatically vents excess downstream pressure without the need for external relief devices, improving system safety and simplicity. Ideal for applications requiring built-in protection and consistent pressure control.
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Highlights
- Internal relief valve eliminates the need for a separate external relief valve in many installations
- Visual relief indicator provides a physical signal when the relief valve has operated
- Body sizes 3/4″, 1″, and 2″ NPT; orifice sizes 3/32″ through 1/2″
- Outlet pressure range 5–150 PSIG; spring ranges from 5–20 PSIG up to 70–150 PSIG
- Maximum inlet body pressure up to 2000 PSIG (steel); nitrile, nylon, and fluorocarbon seat options
- NACE MR0175 construction available; CF8M stainless steel body option
- Temperature range -20°F to 180°F; weight approximately 7 lbs (aluminum) or 11 lbs (steel)
Application
- Gas gathering lines requiring integrated overpressure protection
- Farm tap service on natural gas distribution systems
- City and district gate stations where external relief installation is impractical
- Pipeline pressure reduction applications with variable or fluctuating inlet conditions
HIGH FLOW PILOT OPERATED GAS PRESSURE REGULATOR
Pilot-operated gas regulator designed for precise pressure control in high-flow applications. Maintains stable outlet pressure across varying inlet conditions with improved accuracy over direct-operated designs. Ideal for critical applications requiring tight pressure control and consistent performance.
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Highlights
- Body: ductile iron standard, steel and LCC steel available; stainless steel trim option
- Maximum inlet pressure 290 PSIG (125 PSIG for 1/2″ orifice); maximum outlet casing pressure 250 PSIG
- Body sizes 3/4″, 1″, and 2″ NPT; orifice sizes 3/8″x1/8″ through 1/2″
- External downstream registration line required; 5–35 PSIG and 35–100 PSIG pilot spring ranges
- Pilot-operated design with PL81 pilot; controls outlet pressure within ±1% PSIA at full travel
- Minimum pressure differential 10–20 PSI depending on actuator spring selection
- Temperature range -20°F to 180°F; nitrile or fluorocarbon diaphragm and seat material
Application
- Fixed-factor and pressure-factor gas measurement billing applications
- High-accuracy pressure regulation where outlet variation must remain within 1% PSIA
- Gas distribution and gathering systems with wide inlet pressure swings
- Applications requiring tight shutoff capability across a range of orifice and flow configurations
HIGH FLOW LP GAS PRESSURE REGULATOR
Spring-loaded, direct-operated regulator designed specifically for LP gas service. Built on a high-flow platform with configurations suited for lower pressure ranges, it provides reliable and stable control in LP systems. Ideal for applications requiring dependable regulation in propane and LP gas service.
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Highlights
- Spring ranges 5–20 PSIG and 15–40 PSIG; maximum inlet body pressure 250 PSIG
- Body sizes 3/4″, 1″, and 2″ NPT; orifice sizes 1/4″, 3/8″, and 1/2″
- Spring-loaded, direct-operated LP gas regulator; UL 144-listed configuration available
- Nitrile diaphragm and nitrile seat standard; ductile iron body with aluminum bonnet and diaphragm case
- Powder-coated epoxy exterior; multi-position body and spring case for installation versatility
- Temperature range -20°F to 180°F; weight 5.3 lbs (1″) and 8.8 lbs (2″)
Application
- LP fuel gas supply for engines, heaters, and burners on oil and gas production facilities
- Gas gathering and pressure reduction on propane and LP gas distribution systems
- Pressure reduction applications requiring UL 144 compliance
- Industrial and commercial LP gas service requiring a durable, direct-operated regulator
LIQUID GAS REGULATOR
Spring-loaded, direct-operated regulator designed specifically for liquid service applications. Provides stable and accurate pressure control in systems where liquid flow and process consistency are critical. Ideal for chemical processing, industrial systems, and applications requiring reliable liquid pressure regulation.
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Highlights
- Spring-loaded, direct-operated liquid service regulator with external pressure registration option
- Body sizes 3/4″, 1″, and 2″ NPT; orifice sizes 1/4″ and 1/2″ stainless steel
- Outlet range 10–500 PSIG; water flow capacities up to 66 GPM at 20% droop
- Maximum differential pressure 200 PSIG (elastomer) or 400 PSIG (nylon seat)
- Diaphragm: nitrile (low pressure) or neoprene (high pressure); nitrile, nylon, and fluorocarbon seat options
- Body and diaphragm case: stainless steel, steel, iron, and LCC steel configurations available
- Temperature range -40°F to 180°F; powder-coated epoxy exterior
Application
- Pressure control in industrial chemical process systems
- Chemical production facilities requiring precise liquid pressure regulation
- Electronic manufacturing processes requiring clean, accurate pressure control
- Liquid service applications requiring external pressure registration for downstream sensing accuracy
HIGH PRESSURE SLAM SHUT VALVE
Automatic safety shut-off valve designed to immediately stop flow in an overpressure condition. Closes rapidly and remains locked until manually reset, providing critical downstream protection when used alongside a pressure regulator. Ideal for high-pressure systems requiring fail-safe overpressure protection.
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Highlights
- Overpressure slam shut valve; automatic closure with manual reset required to restore flow
- Tamper-resistant design; repeatable trip accuracy at approximately 1 PSIG
- Body sizes 3/4″, 1″, and 2″; orifice: 1/2″ stainless steel
- Maximum inlet pressure 1000 PSIG (nitrile seat) or 300 PSIG (fluorocarbon seat)
- Trip ranges: 5–20, 15–40, 35–80, and 70–150 PSIG; NPT and flanged end connections
- Steel body, bonnet, and housing; nitrile or fluorocarbon diaphragm and seat
- Temperature range -20°F to 200°F (nitrile) or 0°F to 350°F (fluorocarbon)
Application
- Overpressure protection on farm taps, small gate stations, and fuel gas systems
- Standalone overpressure protection device on gas distribution and gathering systems
- Paired with a P627 pressure reducing regulator as a monitor/slam shut combination
- Applications requiring tamper-resistant, manually-reset safety shutoff at a defined trip pressure