Proportional Electro-Pneumatic Pressure & Flow Control Devices

Industrial Process Regulators

Miniature Regulators for Compressed Air Tools & Systems

Electronic Pressure Regulators

As low as 0-2 inches of water column to 5,000 psi +

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Mechanical Pressure Regulators

Reliable process pressure control for fluids & gases

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Pneumatic Safety Regulators

Affordable, pre-set, tamper-proof safety regulators

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Mass Flow Control Valves

Closed-loop electronic mass flow controllers that control flow rates from 2 SCFH to 250 SCFM

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Pressure Transducers

Accurately measure the pressure of gases and/or fluids in industrial and laboratory processes

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Find Your Product

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PROUDLY SERVING CLIENTS ACROSS INDUSTRY

Engineers and other manufacturing professionals looking for high-quality pneumatic control trust the Proportion-Air family to meet their most demanding requirements. From brand new start-ups to established multinational corporations, our partners know that they’re getting the most accurate, repeatable, customizable control on the market.

RECENT UPDATES

May Newsletter: Force

In this May newsletter, we highlighted how Force (not The Force) can be controlled with electro-pneumatics. We also feature our new Canada-France-Hawaii telescope case study, look at the Purdue capstone teams’ final projects, and watch our manager of technical development, Jon Lister, sit down with Power & Motion to talk about the power of pneumatics. … Continued

2023-24 Capstone Teams Close Out School Year with Expo

Did you happen to hear that sigh of relief last week, maybe late on Thursday afternoon? It may have come from members of our 2023-24 capstone teams at Purdue Polytechnic Institute as they completed their presentations at the annual School of Engineering Technology Spring Tech Expo. The expo gives capstone teams the chance to show … Continued

April Newsletter: Pneumatic Education

In this April newsletter we’ve put the spotlight on pneumatic education to help you learn something new or refresh some previous knowledge before starting your next engineering project. We’ve featured our free white paper on understanding electro-pneumatic pressure regulators. You’ll also see a product highlight about our QB3 high-flow electronic pressure controller. And in case … Continued