Cast iron ball valve

The closing part of a ball valve is a ball. The ball rotates around the center line of the valve body to open and close. Ball valve in the pipeline is mainly used to cut off, distribute and change the flow direction of medium.

The floating ball valve adopts a special design of double inclined plane elastic sealing ring, which effectively reduces the friction between the ball and the sealing ring, and reduces the operating torque. When the medium pressure is small, the contact area between the sealing ring and the ball is small, so there is a larger sealing specific pressure to ensure reliable sealing. When the medium pressure is high, the contact area between the sealing ring and ductile iron increases correspondingly. Therefore, the sealing ring can bear the larger medium thrust without damage, and ensure reliable sealing.