After-Hours Service:
514-697-8810 (East)
905-568-1700 (Central)
604-278-4288 (West)
514-697-8810 (East)
905-568-1700 (Central)
604-278-4288 (West)
Proportion-Air offers a large family of electronic air pressure regulators and air flow control valves that allow you to select the best product to match your exact applications . Superior accuracy, resolution and repeatability are some of the strengths of Proportion-Air`s products. Wainbee is Proportion-Air exclusive representative in Canada.
High Pressure Electronic Pressure Valves can electronically control pressures to 1000psi. Proportion-Air GP Series high pressure control valve is accomplished directly, without the need for a mechanical ratio amplifier. This results in better accuracy and repeatability.
The GP series can also pilot operate a volume booster (pilot operated regulator) when high flow rates at high pressure are needed. Pressures above 1000psi are achieved by pilot operating a ratio regulator.
While this normally results in a severe accuracy penalty, Proportion-Air utilizes an external pressure transducer to close the loop around the actual output pressure of the ratio regulator. This results in a complete high accuracy high pressure package.
QB3H - High Flow to 500 psi | QBSS - Low Flows to 500 psi | GP1 - Direct Control to 1000 psi | GP2 - 1000 psi with External Transducer |
Proportion-Air achieves this high resolution pressure control through a true proportional solenoid valve coupled to a unique analog PID control circuit.
Electronic pressure control valves Factory Mutual approved for hazardous areas. Rugged, vibration proof, and closed loop for long term stability. Available in Class 1 Div 1 Groups C-G and Class 1 Div 2 Groups A-G. Perfect for providing a pilot signal to a pilot operated regulator.
ISF1 - Class 1 Div II | ISBQ - Class 1 Div II |
Proportion-Air built its reputation on electronic pressure regulators capable of very high flow rates. Utilizing industry leading downstream pressure transducer technology, Proportion-Air electronic pressure regulators are used to pilot operate the mechanical volume booster which is the best fit to your application.
The downstream pressure transducer feeds an electronic control signal back to the electronic pilot regulator so that the control loop is closed around your actual output pressure.
The mechanical errors and hysteresis of the volume booster is compensated for by our electronic control at all flow rates. No more regulator droop!
QB4 - Single Unit Flows to 200 scfm | QB3 - Single Unit Flows to 30 scfm | QB2 Multi-piece for Flows to 3500 scfm |
Proportion-Air leads the way in the electronic control of low to very low air pressures. Proportion-Air specializes in pneumatic valves that control pressure under 5psig full scale full scale.
Pressure control ranges as low as 0 to 2 inches of water column are possible when using Proportion-Air electronic pressure regulators.
DQB1 electro-pneumatic control valve | Equilibar Precision Back Pressure Regulators | Equilibar Precision Vacuum Regulators | QB2 High Accuracy Electronic Vacuum Regulators |
Proportion-Air offers pilot operated pressure reducing valves (also known as volume boosters), pilot operated back pressure control valves (BPV’s), pilot operated ratio regulators, low pressure pilot operated regulators, high pressure pilot operated regulators, vacuum regulators, and high relief flow (high exhaust) pilot operated regulators.
Line Card: Wainbee
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