Structural principle of pneumatic ball valve

Structural Principle

Pneumatic ball valve is composed of valve body, ball, valve stem, sealing ring, pneumatic actuator, etc. When the pneumatic actuator receives a control signal, the air pressure inside the pneumatic actuator rotates the ball to the corresponding position, thereby achieving valve opening and closing control. Inside the pneumatic actuator, the air source enters the cylinder through the trachea, pushing the piston to move and thereby driving the valve stem to rotate the ball. When the gas supply stops, the gas in the cylinder is discharged, the valve stem and ball return to their original position, and the valve closes. The sealing ring of the pneumatic ball valve plays a sealing role to prevent medium leakage. When the valve is closed, the sealing ring is compressed to form a seal and prevent medium leakage. When the valve is opened, the sealing ring is stretched and will not affect the opening of the valve.

 

Working Principle

The working principle of pneumatic ball valves is to convert air pressure energy into mechanical energy through pneumatic actuators, driving the valve to open, close, and regulate control. The internal components of pneumatic actuators include cylinders, pistons, valves, and control components, among which the cylinder is the most core component. It pushes the piston through the action of air pressure, thereby driving the movement of the valve. Pneumatic ball valve is a type of valve that uses a ball as a shut-off element. The ball is supported by a rotating shaft, and when the valve is opened or closed, the ball rotates around its axis to achieve fluid opening, closing, and regulating control.