What is a pneumatic valve, what is its action?

Pneumatic valve is a valve with pneumatic actuator. Pneumatic actuators execution speed is relatively fast, the fastest switching speed. Seconds/time, so usually also called pneumatic quick cut-off valve. Pneumatic valve usually configure various accessories, such as solenoid valve, air source treatment sanlian pieces, limit switch, locator, control box, etc. , in order to realize the local control and remote centralized control, in the control room can control the switch of the valve, do not need to run to the field or high altitude and dangerous manual control, to a great extent, save the human resources and time and safety.
pneumatic valve is to rely on the working principle of rotary valve core to keep the valve open or closed. Pneumatic valve switch lightweight, small size, can make it big caliber, reliable sealing, simple structure, convenient maintenance, and facial sealing surface often in the closed state, not easily be medium erosion, has been widely used in various industries. Pneumatic valve and plug valve is belong to one type of valve, only its closure is the individual, body around the center line of the valve body rotation to achieve a kind of open and close the valve.