About

About Proportion Air Inc. About Proportion Air Being the global leader in proportional electro-pneumatic pressure and flow control, these three words – accurate, repeatable, customizable – are what set us apart from our competition. We focus on meeting your exact needs for precise, repeatable control and build a proportional pressure or flow device to match them. And we make it possible to go beyond “global” – Our clients in the aerospace industry can tell you how integral our products are for leaving our atmosphere. 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 application requirements. Whether you have specific package dimensions, housing requirements or an uncommon electrical interface, Proportion-Air has a product family to match your application. 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 application requirements. Whether you have specific package dimensions, housing requirements or an uncommon electrical interface, Proportion-Air has a product family to match your application. Being the global leader in proportional electro-pneumatic pressure and flow control, these three words – accurate, repeatable, customizable – are what set us apart from our competition. We focus on meeting your exact needs for precise, repeatable control and build a proportional pressure or flow device to match them. And we make it possible to go beyond “global” – Our clients in the aerospace industry can tell you how integral our products are for leaving our atmosphere. 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 application requirements. Whether you have specific package dimensions, housing requirements or an uncommon electrical interface, Proportion-Air has a product family to match your application.