Pneumatic ball valve is a ball valve equipped with a pneumatic actuator. The execution speed of the pneumatic actuator is relatively fast, and the fastest switching speed is 0.05 seconds/time, so it is usually called a pneumatic quick cut-off ball valve. Pneumatic ball valves are usually equipped with various accessories, such as solenoid valves, air source treatment triples, limit switches, positioners, control boxes, etc., to achieve local control and long-distance centralized control, and the valve can be controlled in the control room. , it does not need to go to the scene or bring manual control in high altitude and dangerous places, which saves human resources, time and safety to a great extent. The specific classification of pneumatic ball valves are: stainless steel pneumatic ball valve, plastic pneumatic ball valve, sanitary pneumatic ball valve, carbon steel pneumatic ball valve, two-way pneumatic ball valve, three-way pneumatic ball valve, four-way pneumatic ball valve.

Pneumatic ball valve is evolved from plug valve. It has the same action of rotating 90 degrees, except that the cock body is a sphere with a circular through hole or channel through its axis. The ratio of the spherical surface to the channel opening should be such that when the ball rotates 90 degrees, all spherical surfaces should appear at the inlet and outlet, thereby truncating the flow. This type of valve can be installed anywhere in the pipeline.