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QPV Low Pressure Valve Series
Brand: Proportion-Air, IncUltra High Resolution electro-pneumatic closed-loop proportional pressure control valves.
The QPV pressure control valve utilizes a variable orifice valve on the inlet side, 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.
Ideal for very sensitive applications such as leak testing at low pressures, dispensing and microfluidics flow control.
The QPV-Series pressure control valve can provide resolutions (pressure steps) as high as ±0.005% of full scale calibration in single loop configuration.
The QPV can be calibrated as low as 0-2 Inches of Water Column or any calibration from full vacuum to 150 PSI.
Specifications
Brand
Pressure Range
- Vacuum thru 150 psi (10.3 bar)
Accuracy
- ± 0.2 % of Full Scale
Repeatability
- ± 0.02 % of Full Scale
Resolution (Max)
- ± 0.005 % of Full Scale
Port Size
- 1/8” NPT (BSPP Available)
Durability
- Immune to Shock & Vibration (up to 25 Gs)
Operating Temperature
- 32° to 158° F (0° to 70° C)
Filtration
- 40 micron
Maximum Flow
- 1.2 scfm (34 LPM)