Equilibar General Service “GS” back pressure regulators and valves provide stable control of gases, liquids, and mixed-phase fluids in port sizes from 1/4″ to 1″. Sized for pilot scale or manufacturing scale applications, these models are widely used for electrolysis, fuel cell testing, continuous API manufacturing, pressure bypass control and high resolution flow control.
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The trim and body materials can be customized to fit the demands of the process. Common materials in stock are SS316L and PVC but depending on application requirements, GS back pressure regulators can be made from Aluminum, Hastelloy C276, Monel, PTFE, PEEK or other materials. O-rings and diaphragm materials are also available in various materials to meet the needs of the process.
Contact an application engineer to discuss your application.
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How do I choose a back pressure regulator?
Choosing a back pressure regulator involves understanding the process parameters of the fluid during the process, including fluid phase (gas, liquid or mixed phase), fluid temperature, range of flow rates and pressure range. An engineer will use this information to size a valve with the proper flow coefficient, a number used to represent how easily fluid flows through the valve. Chemical compatibility or oxygen use will also be a factor in the materials chosen for the valve design or for any special surface treatments required. Sanitary designs are different from general or industrial service designs.
GSD2 General Service Back Pressure Regulator
- Port Sizes:
- 1/4"
- Typical Pressure Ranges:
- 0 - 1 in WC
- 0 - 10 in WC
- 0 - 28 in WC
- 0 - 5 psi
- 0 - 10 psi
- 0 - 20 psi
- 0 - 30 psi
- 0 - 60 psi
- 0 - 100 psi
- 0 - 150 psi
- 0 - 200 psi
- 0 - 250 psi
- 0 - 300 psi
- 0 - 400 psi
- 0 - 500 psi
- 0 - 750 psi
- Key Applications:
- High Flow Catalysis
- Pilot Scale Reactors
- High Viscosity Media
GSDM2 General Service Back Pressure Regulator
- Port Sizes:
- 1/4"
- Typical Pressure Ranges:
- 0 - 1000 psi
- Key Applications:
- High Flow Catalysis Research
- Pilot Scale Electrolysis
- Pilot Scale Reactors
- Liquid Fuel Recirculation Loops
GSDH2 General Service Back Pressure Regulator
- Port Sizes:
- 1/4"
- Typical Pressure Ranges:
- 0 - 1000 psi
- 0 - 1500 psi
- 0 - 2000 psi
- 0 - 2500 psi
- Key Applications:
- High Flow Catalysis Research
- Pilot Scale Reactors
- High Pressure Liquid Fuels
GSD3 General Service Back Pressure Regulator
- Port Sizes:
- 3/8"
- Typical Pressure Ranges:
- 0 - 1 in WC
- 0 - 10 in WC
- 0 - 1.4 psi
- 0 - 2 psi
- 0 - 5 psi
- 0 - 10 psi
- 0 - 20 psi
- 0 - 30 psi
- 0 - 60 psi
- 0 - 100 psi
- 0 - 150 psi
- 0 - 175 psi
- 0 - 200 psi
- 0 - 250 psi
- 0 - 300 psi
- 0 - 400 psi
- Key Applications:
- Fuel Pump & Systems Testing
- Fuel Cell Testing
- Pump recirculation pressure control
GSDM3 General Service Back Pressure Regulator
- Port Sizes:
- 3/8"
- Typical Pressure Ranges:
- 0 - 750 psi
- Key Applications:
- High Flow Catalysis Research
- Pilot Scale Reactors
- Liquid Fuel Recirculation Loops
GSDH3 General Service Back Pressure Regulator
- Port Sizes:
- 3/8"
- Typical Pressure Ranges:
- 0 - 500 psi
- 0 - 750 psi
- 0 - 1000 psi
- Key Applications:
- High Flow Catalysis Research
- Pilot Scale Reactors
- High Pressure Liquid Fuels
GSD4 General Service Back Pressure Regulator
- Port Sizes:
- 1/2"
- Typical Pressure Ranges:
- 0 - 1 in WC
- 0 - 10 in WC
- 0 - 2 psi
- 0 - 5 psi
- 0 - 10 psi
- 0 - 20 psi
- 0 - 30 psi
- 0 - 60 psi
- 0 - 100 psi
- 0 - 150 psi
- 0 - 200 psi
- 0 - 250 psi
- 0 - 300 psi
- Key Applications:
GSDM4 General Service Back Pressure Regulator
- Port Sizes:
- 1/2"
- Typical Pressure Ranges:
- 0 - 500 psi
- 0 - 750 psi
- Key Applications:
- High Flow Catalysis Research
- Pilot Scale Reactors
- Liquid Fuel Recirculation Loops
GSDH4 General Service Back Pressure Regulator
- Port Sizes:
- 1/2"
- Typical Pressure Ranges:
- 0 - 500 psi
- 0 - 750 psi
- 0 - 1000 psi
- Key Applications:
- High Flow Catalysis Research
- Pilot Production Reactors
- High Pressure Liquid Recirculation Loops
GSD6 General Service Back Pressure Regulator
- Port Sizes:
- 3/4"
- Typical Pressure Ranges:
- 0 - 1 in WC
- 0 - 10 in WC
- 0 - 2 psi
- 0 - 5 psi
- 0 - 10 psi
- 0 - 20 psi
- 0 - 30 psi
- 0 - 60 psi
- 0 - 100 psi
- 0 - 150 psi
- 0 - 200 psi
- 0 - 250 psi
- 0 - 300 psi
- Key Applications:
GSDM6 General Service Back Pressure Regulator
- Port Sizes:
- 3/4"
- Typical Pressure Ranges:
- 0 - 500 psi
- Key Applications:
- Precision Dosing Pressure Control
- Pump Recirculation Loops
- High Viscosity Media
GSDH6 General Service Back Pressure Regulator
- Port Sizes:
- 3/4"
- Typical Pressure Ranges:
- 0 - 1000 psi
- 0 - 1500 psi
- Key Applications:
- Reverse Osmosis
- Electrolysis and Electrolyzer pressure control
- Pump Recirculation Loops
- High Viscosity Media
GSD8 General Service Back Pressure Regulator
- Port Sizes:
- 1"
- Typical Pressure Ranges:
- 0 - 1 in WC
- 0 - 10 in WC
- 0 - 28 in WC
- 0 - 2 psi
- 0 - 5 psi
- 0 - 10 psi
- 0 - 20 psi
- 0 - 30 psi
- 0 - 60 psi
- 0 - 100 psi
- 0 - 150 psi
- Key Applications:
GSDM8 General Service Back Pressure Regulator
- Port Sizes:
- 1"
- Typical Pressure Ranges:
- 0 - 150 psi
- 0 - 175 psi
- 0 - 200 psi
- 0 - 250 psi
- 0 - 300 psi
- 0 - 400 psi
- 0 - 500 psi
- Key Applications:
GSDH8 General Service Back Pressure Regulator
- Port Sizes:
- 1"
- Typical Pressure Ranges:
- 0 - 1000 psi
- 0 - 1500 psi
- 0 - 2000 psi
- Key Applications:
- Electrolysis gas stream pressure control
- High pressure pump test stands
- High viscosity media or polymer processing
- higher pressure chemical reactor control
Other Equilibar Back Pressure Products:
Research Series
Back Pressure Regulators
1/16" to 1/4"
up to 10,000 psig / 690 bar(g)
General Service
Back Pressure Regulators
1/4" to 1"
up to 2500 psig / 172 bar(g)
Industrial Service
Back Pressure Valves
1.5" to 4"
up to 150 psig / 10 bar(g)
Electronic
Back Pressure Regulators
1/4" to 4"
up to 5000 psig / 344 bar(g)
