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

Select your product based on the first 3-5 digits of the part number. These can be numbers or letters. Products are listed in alphabetic order. The # symbol can represent any single character.

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

January Newsletter: Semiconductors & Electronics

Take the next step in automating your process! This month’s newsletter focuses on the semiconductor and electronics industry. See how the QPV helped a customer control the pressure of argon gas in their sputtering application. Learn more about our high resolution, manifold mountable pressure regulator, the MPV. Read about our new distributor partner in Turkey. … Continued

December Newsletter: Semiconductor Manufacturing

Elevate your efficiency! This month’s newsletter focuses on the semiconductor and electronics industry. See how our products helped a customer control the force in their Chemical Mechanical Planarization application. Learn about our high resolution, high flow pressure regulator, the QL3. Read our latest blog post on our 2024-2025 Purdue capstone team and their quest to … Continued

New Distributor Partner in Turkey: Rota Teknik

Proportion-Air’s Distributor Partner List Continues to Grow ROTA Teknik Mak. San. ve Tic. A.Ş. is the latest distributor to join the Proportion-Air roster of partners. This new distributor will cover the country of Turkey. Since 1997, ROTA Teknik has delivered solutions in hydraulics, pneumatics, automation, software, electronics, and test systems. The company combines advanced engineering … Continued