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BVQBX Series Electro-Pneumatic Pressure Regulator

Brand: Burling Valve

The BVQBX series valve uses Burling Valve’s closed loop technology for Pressure control. It gives an output pressure proportional to an electrical command signal input. 

The BVQB1X is a complete closed loop system consisting of valves, manifold, housing and electronic controls. Pressure is controlled by the use of two solenoid valves. One valve functions as inlet control, the other as exhaust. The pressure output is measured by a pressure transducer internal to the BVQB1X and provides a feedback signal to the electronic controls.

This feedback signal is compared with the command signal input. A difference between the two signals causes one of the solenoid valves to open, allowing flow in or out of the system. Accurate pressure is maintained by controlling these two valves. 

The BVQB2X is similar to the BVQB1X but uses a double loop control scheme. In addition to the internal pressure transducer, the BVQB2X receives an electrical signal from an external sensing device. This primary feedback signal is compared against the command signal input. This comparison is then summed with the internal pressure transducer signal.

The gain of the circuit is such that priority is given to the external feedback signal. A difference between the command signal and the feedback signal causes one of the solenoid valves to be activated.

Specifications

BSP Connection

  • 1/8” BSPP Female

Elastomers

  • Fluorocarbon

Enclosure, Body Material

  • Aluminum

Environmental Protection

  • IP65

NPT Connection

  • 1/8” NPT Female

Pressure Range

  • bar: 0 to 12
  • Inches Hg: -29.92 to 0
  • kPa: 0 to 1,200
  • psig: 0 to 175

Supply Pressure - Maximum

  • bar: 12
  • kPa: 1,200
  • psi: 175
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