Many people are not unfamiliar with pneumatic control valves. They mainly use compressed air as the power source, and use cylinders as actuators. They even use electrical valve positioners, converters, solenoid valves and other accessories to drive valves, which will eventually achieve on-off or proportional regulation. Of course, the pneumatic control valve is simple to operate, fast in response, and safe in nature, but what principles should be followed when installing? 　　　　

The floating pneumatic ball valve has a simple structure and good sealing performance, but the ball receives all the load of the operating medium and transfers it to the outlet seal ring. Therefore, it is necessary to consider whether the seal ring data can withstand the operating load of the ball medium. This structure is widely used for medium and low pressure ball valves. Fixed ball