Proportion-Air Logo

Proportion-Air, Inc. is a manufacturer of electronic air pressure regulators and air flow control valves. Proportion-Air, Inc. was founded in 1985 by corporate President Daniel E. Cook. This air pressure device was designed to accept a variety of electronic analog and digital signals in order to control pneumatic pressures with extreme accuracy while negating the effects of vibration, mounting position or environmental concerns.

Proportion-Air goes where others fear to tread, vacuum control, vacuum through positive pressure, absolute pressure, inches of water column, or direct control up to l000psi. Proportion-Air handles these difficult requirements with unique advanced control technology, resulting in products with superior accuracy, resolution, and repeat-ability. All Proportion-Air products are built tough to handle the most adverse environments.

Need more information?

Contact Us Today!

Pressure Control

  • Advanced pneumatic control technology
  • Feedback loops allows for greatest accuracy
Learn More

Closed Loop Flow Control

  • Real-time flow control
  • Continuous output <10 ms
Learn More

P2 Profiler

  • Programmable piecewise signal generator
Learn More