Proportion-Air, Inc. Electro Pneumatic Control Valve DQPV2

Ultra High Resolution electro-pneumatic closed loop proportional pressure control valves with a digital display. Two loop version accepts a feedback from wide ranges of external sensors. The QPV utilizes a variable orifice valve on the inlet side which eliminates the digital steps of traditional ON/OFF solenoid: The field adjustable hysteresis potentiometer allows users to virtually eliminate the dead-band of the control circuit, resulting in superior system resolution. Ideal for very sensitive applications such leak testing at low pressures and dispensing applications.