The working principle of pneumatic ball valve is to make the valve unblocked or blocked by rotating the spool. Pneumatic ball valve switch light, small size, can be made into a large diameter, reliable sealing, simple structure, convenient maintenance, sealing surface and spherical surface are often closed, not easy to be eroded by the medium, it has been widely used in various industries.

Pneumatic ball valve and plug valve belong to the same type of valve, only its closing part is a ball, and the ball rotates around the center line of the valve body to open and close the valve.

Pneumatic ball valve has been widely used in petroleum, chemical industry, power generation, paper making, atomic energy, aviation, rocket and other departments, as well as people's daily life.