QPV High Resolution Pressure Regulator

QPV High Resolution Pressure Regulator

QPV ultra high resolution electro-pneumatic closed-loop proportional pressure control valves are ideal for very sensitive applications such as leak testing at low pressures, dispensing and microfluidics flow control.

  • Can be calibrated as low as 0-2 inches of water column
  • Resolution (pressure steps) as high as ±0.005% of full scale calibration in single loop configuration
  • Ideal for constant, low-flow applications too

QPV pressure regulators use a variable orifice valve, which eliminates the digital steps of traditional ON/OFF solenoids: The field adjustable hysteresis potentiometer allows users to virtually eliminate the dead-band of the control circuit, resulting in superior system resolution.

0.2%
Accuracy ±
0.005%
Resolution ±
1.2
Max Flow (SCFM)
150
Max P2 (PSI)
  • Technical Specs
  • Downloads & Links
  • Request Quote

Technical Specs

Pressure RangeVacuum thru 150 PSI (10.3 Bar)
Accuracy±0.2% F.S.
Repeatability±0.02% F.S.
Resolution (max)±0.005% F.S.
Port Size1/8″ NPT (BSPP Available)
DurabilityImmune to shock & vibration (up to 25 Gs)
Operating Temps32-158°F (0-70°C)
Filtration40 Micron
Max Flow1.2 SCFM (34 LPM)

Documents

Installation Guide

Sales Brochure

Links

MPV-Series

SPV-Series

Downloads

File Request Form: Use this form to request a file other than a standard QPV .STEP file.

Submit the form below to download standard QPV .STEP files

Request Quote

QPV1 |High Resolution

The QPV1 high resolution pressure controller employs two internal valves. A normally closed valve controls the exhaust and vacuum. A true proportional valve with variable orifice controls inlet pressure. The hysteresis of the inlet valve can be tuned out, in accordance with the parameters of each application to achieve a near zero dead-band.

QPV2 3D .STEP View & Download

QPV2 |High Resolution, Dual Loop

A high resolution, external sense and repeatable electro-pneumatic closed-loop proportional pressure control valve. The 2-loop version accepts a feedback from a wide range of external sensors. With external sense, the QPV2 can accept feedback from load cells, torque cells, pressure transducer, flow transducers, etc…without the need for additional PID tuning. Or, the QPV2 can be mounted on a volume booster with feedback from a Proportion-Air transducer to achieve higher flow rates with high resolution.