cock pneumatic valve is a kind of quick switch through pneumatic valve, due to the movement between rotating seal face with wiping, and can completely in the fully open to prevent contact with the liquid medium, so it usually can be used in medium with suspended particles.
Cock pneumatic valve of another important feature is that it is easy to adapt the multi-channel structure, so that a pneumatic valve can have two, three, even four different port.
It can simplify the design of pipeline system, reduce the dosage of pneumatic valves and equipment needed in some of the connection parts.