Quick exhaust valves, or QEVs, are designed to increase a cylinder’s cycle speed in a pneumatic system. Installing a pneumatic QEV, either at the rod end or the blind end of a cylinder, will cause rapid extension or rapid retraction. This depends on your requirements.
Pipes and valves are important for a number of industrial and residential purposes. However, in many cases, stationary fixtures are not beneficial in distributing liquids and gases. This is where swivel joints come in handy.
Quick exhaust valves are special valves which are added to a cylinder to increase the cycle speed of pneumatic cylinder time during return of the piston. They are used in the inlet of a spring return or a double acting pneumatic cylinder.