Pneumatic Quick Exhaust Valves

Pneumatic quick exhaust valves are used in conjunction with pneumatic cylinders to increase speed and to lower backpressure. The use of these valves improves system performance and help reduce cylinder size. RS Components offer a range of high-quality valves from leading brands such as Festo, SMC, Norgren, Legris and of course RS PRO.

How does a pneumatic exhaust valve work?

Quick exhaust valves work by directing the compressed air from a cylinder to atmosphere instead of flowing back through the valve. Exhaust valves are used to increase the extension speed of the actuator piston rod. Exhaust valves should always be fitted directly on the vent side (exhaust port) of a pneumatic cylinder for optimum performance.

Applications for quick exhaust valves

Quick exhaust valves are used in a wide range of pneumatic pressure applications. With the ability to work at very high pressures exhaust valves are primarily used in oil, gas, chemical and automation applications.

Main Features

  • A range of body materials including forged brass, die-cast aluminium and nickel-plated brass
  • Industry-standard threads, BSPP, BSPT, NPT or Metric
  • Available with built-in silencers
  • A broad range of operating pressures
  • Available with ATEX approvals

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Description Price Manufacturer Series Connection Type Threaded Connections Tube Connections Built-In Silencer Threaded Connection - Gender Threaded Connection Size Minimum Operating Pressure Threaded Connection Type Maximum Operating Pressure Body Material Standards Met
RS Stock No. 389-6719
Mfr. Part No.P4Q-BA12
BrandParker
£25.21
Each
Units
P4Q Threaded G 1/4 Female - - Female 1/4in 0.2bar G 10 bar - -
RS Stock No. 389-6731
Mfr. Part No.P4Q-CA14
BrandParker
£37.58
Each
Units
P4Q Threaded G 1/2 Female - - Female 1/2in 0.2bar G 10 bar - -
RS Stock No. 389-6725
Mfr. Part No.P4Q-BA13
BrandParker
£25.21
Each
Units
P4Q Threaded G 3/8 Female - - Female 3/8in 0.2bar G 10 bar - -
RS Stock No. 389-6747
Mfr. Part No.P4Q-CA16
BrandParker
£37.58
Each
Units
P4Q Threaded G 3/4 Female - - Female 3/4in 0.2bar G 10 bar - -