Vacuum valve is in the category of automatic valves that is able to convert the air flow at the inlet to the vacuum.
Generally workpieces with smooth surface can be picked up and hold by using this valve.
Compressed air has been used for transmitting the current and creating suction from inlet port (P) to the outlet port (R). Suction cup can be connected to port (U).
Suction process will be stopped as soon as compressed air switches off.
The connected workpiece to the cup can be detached via port U.
By installing a silencer at the outlet (R) the produced noise is reduced considerably.
Controlling of this valve is possible by 2/2 and 3/2 way valve.