Proportion-Air manufactures proportional pressure regulators that can be used to precisely control the pressure of air, gases and liquids. Our products cover a pressure range from full vacuum up to 7,000 psig (482 bar) and flows up to 2,000 scfm (944 lit/sec). These regulators are closed loop and operate by comparing the command signal from an analog, digital or serial based controller with feedback from the on-board pressure transducer. Repeatability of +/- 0.02% of full scale calibration and accuracy up to +/- 0.2% of full scale are common. High resolution regulators are also available. Give us a call or shoot us an email now (red button below) and ask for more information on Proportion-Air’s Proportional Pressure Controller.