Proportion Air Inc.

Being the global leader in the manufacture of proportional electronic 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. Our family of brands includes Burling Valve industrial process regulators and Protect-Air USA miniature safety regulators and air fuses. 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 handles these difficult requirements with unique advanced control technology, resulting in products with superior accuracy, resolution, and repe...