Ultra High Resolution Pressure Control Valves

Ultra High Resolution Pressure Control

The QPV is a high resolution proportional pressure regulator or servo valve designed to precisely hold the set pressure under flow or in the presence of leaks. The control circuit affords precision pneumatic control by only opening the proportional solenoid valve the required amount to maintain precise pressure control under flow.


  • High resolution precision pressure control, +/-0.005% F.S.
  • Use of a proportional solenoid valve avoids digital stepping while changing pressure
  • Precision valve control allows smooth, precision pneumatic control, even under flow
  • Unique proportional control valve technology provides excellent repeatability
  • Pressure control range from vacuum to 150 psig

  • QPV2 can accept feedback from an external precision pressure transducer for greater accuracy, or feedback from a flow transducer for closed loop flow control.
  • High resolution precision pressure control, +/-0.005% F.S.
  • Use of a proportional solenoid valve avoids digital stepping while changing pressure
  • Precision valve control allows smooth, precision pneumatic control, even under flow
  • Unique proportional control valve technology provides excellent repeatability
  • Pressure control range from vacuum to 150 psig

  • QPV1 with a digital display
  • Single loop, high resolution pressure control, +/-0.005% F.S.
  • Proportional inlet valve avoids digital stepping
  • Control pressure range from vacuum to 150 psig
  • Field adjustable deadband & stability to optimize performance
  • Variety of command signal options

  • Two loop, high resolution pressure control, +/-0.005% F.S.
  • Proportional inlet valve avoids digital stepping
  • Control pressure range from vacuum to 150 psig
  • QPV2 accepts feedback signal from F-Series (flow transducer) closed loop flow control
  • Field adjustable deadband & stability to optimize performance
  • Variety of command signal options