Pneumatic ball valves are ball valves with pneumatic actuators. The execution speed of pneumatic actuators is relatively fast, and the fastest switching speed is 0.05 seconds/time, so it is usually called pneumatic quick shut-off ball valve. Pneumatic ball valves are usually equipped with a variety of accessories, such as solenoid valves, air source treatment triplets, limit switches, positioners, control boxes, etc., to achieve local control and remote centralized control, in the control room can control the valve switch, no need to run to the scene or high altitude and danger to bring manual control, to a large extent to save human resources and time and safety. The specific classification of pneumatic ball valves includes: stainless steel pneumatic ball valves, plastic pneumatic ball valves, sanitary pneumatic ball valves, carbon steel pneumatic ball valves, two-way pneumatic ball valves, three-way pneumatic ball valves, and four-way pneumatic ball valves.