QPV1 Electronic Vacuum Pressure Regulator - Precision Back Pressure Regulators and more

QPV1 Electronic Vacuum Pressure Regulator

Port Sizes:
1/8"
Typical Pressure Ranges:
0 - 1 in WC0 - 7 in WC0 - 10 in WC0 - 28 in WC
Body Material (Standard):
Aluminum
Key Applications:
  • Electronic vacuum pilot regulator for Equilibar® vacuum regulator 0 to 30 inHg
  • Precision vacuum control from 0 to 30 inHg
  • For air and inert gases
  • Low flow

Contact Us

  • If multiple fluids or phases, list all.
  • This field is for validation purposes and should be left unchanged.
Product Description
image of QPV electronic pressure regulator

QPV1 Electronic Vacuum Pressure Regulator

The Equilibar QPV1 is a high resolution electronic vacuum pressure regulator providing a regulated output vacuum pressure that is proportional to an electrical command signal input. The QPV1 is available for vacuum pressure ranges 0-30 inHg. The QPV1 is available in both 0 -10 VDC and 4-20 mA analog signal types.

The QPV1 is a relatively low flow regulator, making it a great choice any time low flow rates or small volumes require precise vacuum control. The QPV is often used to provide the pilot vacuum pressure signal to the dome of an Equilibar® vacuum regulator (EVR). The QPV can be mounted near the central process control system for easy process integration or mounted directly to the EVR. It can be used to electronically control vacuum pressure in line sizes from 1/8 inch through 4 inch by pilot operating the appropriately sized EVR.

Other Details:

  • Superior proportional valve action
  • Accuracy: 0.1% – 0.5% FS
  • Resolution: 0.005% – 0.2% FS
  • Optional DeviceNet / Serial communication
Videos
image of QPV electronic pressure regulator

QPV1 Electronic Vacuum Pressure Regulator

Watch the video below for a demonstration of how to set up an Equilibar Vacuum Regulator with an Electronic Pilot.

How an Equilibar QPV High Resolution Electronic Pressure/Vacuum Regulator works.

Downloads
Applications
image of QPV electronic pressure regulator

QPV1 Electronic Vacuum Pressure Regulator

  • Electronic vacuum pilot regulator for Equilibar® vacuum regulator 0 to 30 inHg
  • Precision vacuum control from 0 to 30 inHg
  • For air and inert gases
  • Low flow
Additional Specs
image of QPV electronic pressure regulator

QPV1 Electronic Vacuum Pressure Regulator

Weight:

1.2 lbs (0.54 kg)

Dimensions:


 

 

 

 

 

 

 

Fitting/Threads:

Standard: 1/8″ NPT female

How It Works
image of QPV electronic pressure regulator

QPV1 Electronic Vacuum Pressure Regulator

The QPV is a complete closed loop control valve consisting of two internal solenoid valves, a manifold, an electronic control circuit
board, and a pressure transducer all contained in a protective IP65/NEMA4 housing. Pressure is controlled by the use of two solenoid valves. One valve functions as inlet control and acts to allow supply media into the system to increase the controlled pressure. The other solenoid valve acts as the exhaust and will decrease the controlled pressure by venting to atmosphere. The inlet solenoid valve operates in a proportional manner to the current supplied by the QPV’s electronic control circuit. This variable orifice affect allows precise control of pressure at low flow conditions and avoids the digital steps of traditional ON/OFF solenoids. The ability to vary the inlet solenoid valve orifice opening in an analog fashion allows the QPV1 to control pressure with extremely high resolution. The exhaust solenoid is a standard ON/OFF solenoid and allows excess media to be vented from the system.

The regulated pressure output is measured by a pressure transducer internal to the QPV1. This pressure transducer provides a feedback signal to the QPV1’s electronic control circuit. The control circuit compares the internal sensor feedback signal to the command signal input. Any difference between the two signals causes the appropriate solenoid valve to open, allowing flow in or out of the system. Accurate pressure is maintained by controlling these two valves.

Related Products

Equilibar News

schematic of simple open loop level control with Equilibar back pressure regulator and EPR 3000

Equilibar Technology: A Good Choice for Complex Level Control

While Equilibar technology is known as the gold standard for back pressure control, its unique qualities offer advantages for complex level control applications as well. Using an Equilibar unit for level control could be a good choice in circumstances where there is a wide range of flow rates, varying flow coefficients, varying downstream pressure or Read More

Read More