Proportion-Air, Inc. Datasheets for Industrial Valves

Valves are mechanical devices that control the flow and pressure of liquids, gases, and slurries within a system. They are also known as regulators and are used in a wide variety of applications. Valves vary greatly in size, design, function, and operation.
Industrial Valves: Learn more

Product Name Notes
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.
Brass construction is suitable for non-corrosive liquid
Closed loop air pressure control valve. Pressure ranges from full vacuum up to 300 psig. Variety of analog and digital command signals. High accuracy of +/- 0.2% F.S. typical with...
Control pressure up to 150 psig and as low as inches of water column
Control pressure up to 200 psig
Electro-pneumatic closed loop pressure control valve. Pressure ranges from full vacuum up to 300 psig. Variety of analog and digital command signals. Din-Rail, panel mount or up to 12 stations...
Electro-pneumatic closed loop pressure control valve. Pressure ranges from full vacuum up to 500 psig. Variety of analog and digital command signals. High accuracy of +/- 0.2% F.S. typical with...
Electro-pneumatic closed loop pressure control valve. Two loop design accepts a feedback signal from a supplied DS series external pressure sensors. Pressure ranges from full vacuum up to 500 psig.
Electro-pneumatic closed loop pressure control valve. Two loop design accepts a feedback signal from wide ranges of external sensors. Pressure ranges from full vacuum up to 300 psig. Variety of...
Electro-pneumatic pressure control valve. Pressure ranges from full vacuum up to 300 psig. Variety of analog and digital command signals. High accuracy of +/- 0.2% F.S. typical with +/-0.02% F.S.
High pressure control up to 300 psig
High pressure control up to 350 psig
Intrinsically safe-Factory Mutual (Class I, Division 2 Groups C,D) electro-pneumatic closed loop pressure control valve. Pressure ranges from full vacuum up to 150 psig. 4-20mA command signal. High accuracy of...
Intrinsically safe-Factory Mutual (Class I,II,III, Division 1 Groups C,D,E,F,G) electro-pneumatic closed loop pressure control valve. Pressure ranges from full vacuum up to 150 psig. 4-20mA command signal. High accuracy of...
Modified R-Series for high flow vacuum control
Modified spring for low pressure control is available
Port size is 1/4 inch inlet and 1/2 inch NPT outlet
Pressure control up to 250 psig
R-SERIES cleaned for oxygen service and with modified bonnet for fast response
Stainless steel angle seated control valve for liquid and gases: This valve incorporates an integral closed loop pneumatic positioning system. Built in LVDT (Linear Variable Differential Transformer) guarantees valve positioning.
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...
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,...
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...
Ultra High Resolution electro-pneumatic closed loop proportional pressure control valves with a digital display. The QPV utilizes a variable orifice valve on the inlet side which eliminates the digital steps...
Ultra High Resolution electro-pneumatic closed loop proportional pressure control valves with a digital display. Two loop version accepts a feedback from wide ranges of external sensors. The QPV utilizes a...
Ultra High Resolution electro-pneumatic closed loop proportional pressure control valves. The MPV utilizes a variable orifice valve on the inlet side which eliminates the digital steps of traditional ON/OFF solenoid:...
Ultra High Resolution electro-pneumatic closed loop proportional pressure control valves. The QPV utilizes a variable orifice valve on the inlet side which eliminates the digital steps of traditional ON/OFF solenoid:...
Ultra High Resolution electro-pneumatic closed loop proportional pressure control valves. Two loop version accepts a feedback from a wide ranges of external sensors.The MPV utilizes a variable orifice valve on...
Ultra High Resolution electro-pneumatic closed loop proportional pressure control valves. Two loop version accepts a feedback from wide ranges of external sensors. The QPV utilizes a variable orifice valve on...
High pressure control up to 300 psig Piston Style Operation allows rapid response High relief flow Port size from 1/4 to 1-1/4 inch NPT