Q: What is the principle of pneumatic butterfly valve for passenger cars?
Answer: Working principle of pneumatic butterfly valve
Inject air into the deformable sealing container, and realize the elastic effect of the ball valve through the compressibility of air. For example, the pneumatic butterfly valve system of a bus is mainly composed of pneumatic butterfly valve, height control valve, differential pressure valve and additional air chamber. During operation, compressed air enters the pneumatic butterfly valve air reservoir from the main air pipe of the train, and enters the pneumatic butterfly valve through the height control valve. When the air pressure in the ball valve is charged to a constant air pressure, the car body rises to the predetermined balance position. The schematic diagram is as follows: