Proportion-Air, Inc. Datasheets for Pneumatic Relays and Volume Boosters

Pneumatic relays and volume boosters control output air flow and pressure in response to a pneumatic input signal.  They can perform simple functions such as boosting or scaling the output, or use complex reversal, biasing, and math function operators.
Pneumatic Relays and Volume Boosters: Learn more

Product Name Notes
High Pressure Regulator -- GP1 1000 psi high pressure control valve. Electronically control pressure ranges from full vacuum up to 1000 psi. Variety of analog and digital command signals. High accuracy of +/- 0.25% F.S.
Air Volume Booster -- R-Series
Air Volume Booster -- R000-02
Modified spring for low pressure control is available.
Air Volume Booster -- R000-B Modified spring for low pressure control is available
Air Volume Booster -- R000-B-02 R-SERIES cleaned for oxygen service and with modified bonnet for fast response.
Pressure Control Device -- DQB3 The DQB3 is a complete electronic pressure control valve package consisting of two feed and bleed solenoid valves, a control circuit, a pressure transducer, an integral air pilot operated volume...
Air Volume Booster -- PSR The PSR has a control pressure up to 200 psig.
Air Volume Booster -- PSR-02 The PSR-02 has a relief flow up to 12 SCFM.
Electro-Pneumatic Pressure Control Valve -- QB3 The QB3 is a complete electronic pressure regulator package consisting of two feed and bleed solenoid valves, a control circuit, a pressure transducer, an integral air pilot operated volume booster,...
Electronic Pressure Regulator -- QB3H The QB3H is an electronic pressure regulator capable of operating at high pressures (to 500psig/34.47 bar) and high forward and relief flows (to 50scfm/1416slpm). The QB3H consists of two solenoid...
High Flow Control Valve -- QB4 The QB4 closed loop electronic pressure regulator can handle flow rates as high as 200 scfm forward flow and 300 scfm exhaust flow. It works with pressures from vacuum to...