What is the principle of rapid filling of pneumatic ball valve?
The pneumatic ball valve that can be used for quick filling includes a pneumatic actuator and a valve body. The pneumatic actuator of the product and the valve body are connected by a coupling shaft. The pneumatic actuator of the product is equipped with an air source inlet, an air source outlet and an indicating contact. , The valve body of the product is connected with the pipe joint through a nut. The valve body is equipped with a sphere and an "O" ring. There are two "O" rings on the product and they are located at the left and right ends of the sphere. The product has an "O" shape. There is a polytetrachloride sealing packing between the ring and the ball, and the raw material of the valve body of the product is plastic.
The pneumatic ball valve includes a valve body, a valve core and a valve stem. The valve core and the valve stem are connected in linkage. The valve body of the product is equipped with a cylinder. The displacement of the piston rod of the cylinder and the roll of the valve stem are linked. The valve is controlled by the cylinder. Switch, and then make it simple, and the movement of the cylinder can be controlled by an external solenoid valve or a pull valve, and then the valve can be controlled remotely, and then it is more convenient.
In order to avoid abrasion, erosion and cavitation on the surface of pneumatic ball valve internals (spool, valve seat), the thermal hardness of the material should be considered under high temperature conditions to prevent the hardness of the metal from changing. Under the high pressure difference, most of the energy of the fluid is concentrated on the valve internals for release, which may overload the valve internals. At high temperatures, the mechanical properties of most materials deteriorate and the materials become soft, which greatly affects the valve internals. The service life of the pieces.
The pneumatic ball valve only needs to use the pneumatic actuator to rotate 90 degrees with the air source and the small rolling moment can be closed tightly. The completely equal internal cavity of the valve provides a straight flow channel with little resistance for the medium.
It is generally believed that the ball valve is suitable for direct opening and closing. The main feature of the ball valve is its compact structure, easy to operate and repair, suitable for general operating media such as water, solvents, acids and natural gas, and also suitable for media with harsh operating conditions, such as oxygen, hydrogen peroxide, methane and ethylene. The ball valve body can be integral or combined.
