Proportional Electronic Pneumatic Pressure & Flow Control Devices
Industrial Process Regulators
Miniature Regulators for Compressed Air Tools & Systems
Closed-loop electronic mass flow controllers that control flow rates from 2 SCFH to 250 SCFM
Learn More
Accurately measure the pressure of gases and/or fluids in industrial and laboratory processes
Learn More
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
Proportion-Air and Pennsylvania State University Launch their 1st Capstone Collaboration
Proportion-Air is proud to announce its first senior capstone collaboration with the Pennsylvania State University College of Engineering. This semester, a talented group of senior engineering students will design an intrinsically safe pressure transducer to complement our QB Electronic Pressure Regulator for hazardous environments. Each team member brings unique skills and perspectives to this real-world … Continued
Read More
Deep Waters – 2025-26 Purdue’s Capstone Pnuematic Shark Coming Alive
With the new school year in full swing, a Proportion-Air sponsored capstone team at Purdue Polytechnic Institute has plunged headfirst (pun intended) into this year’s challenge: complete the building a waterproof animatronic bull shark powered by proportional electro-pneumatic control. The concept originated as an in-house project at Proportion-Air several years ago, and last year students … Continued
Read More