High Flow Valves & Regulators | Electronic Control

Proportion-Air built its reputation on electronically controlled high flow valves capable of very high flow rates. Utilizing our 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 high flow valve (pilot) so that the control loop is closed around your actual output pressure. This allows us to overcome any mechanical inaccuracies and hysteresis issues inherit in the mechanical regulator we are piloting.

The mechanical errors and hysteresis of the volume booster is compensated for by our electronic control at all flow rates.  No more regulator droop!


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Understanding the flow required for your application is critical to implementing the correct product in your process. If you are unsure of your flow rates, no problem! Our application engineers are great at asking the right questions and gathering the required information to calculate the flow you require and recommend the best high flow valves to meet your needs.

Over-sizing flow rates is (generally) not a problem. But, under sizing the flow rates can mean the difference between success and failure. If your high flow valves do not flow enough for your process, speed and pressure is lost downstream. At Proportion-Air, we have a multitude of products and methods for achieving a broad range of flows and pressures – way more than we can advertise on our website. So, please give us a call and let us help you with your application.

What Our Customers Say

  • What an excellent process you have for specifying parts for your customers. I am very impressed.

    Jamison B. - Monrovia, CA

  • I met with Bill today...He was impressed by your knowledge and application of your products and wanted me to thank you for your excellent support.

    Bob R. - Newark, CA

  • It is really a pleasure to work with Proportion-Air. You cannot imagine what kind of problems I have with some manufacturers. Thank you very much!

    Sungur - Istanbul, Turkey

  • I'm astonished for the quickest answer ever!

    Alessio B. -Bologna, Italy

  • I'm happy to report that the trial on the QPV1 has been going well. I'm quite impressed by the performance of the unit. I'm also very impressed by the service that I received from Nick Archer which I think merits specific attention. Nick has been extremely responsive to my emails and questions. He has been patient, has kept his word, and has always replied to me quickly with an answer or a reply to my questions. Nick has provided me with what I, and certainly others in my group, consider to be a perfect example of top notch high quality customer service.

    John C. - Columbus, Ohio

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