Ball valve is to rely on the valve to open valve, or block. Ball valve switch light, small volume, can make it big caliber, sealing is reliable, simple structure, convenient maintenance, seal face sphere and often closed in the state, not easy be medium erosion, widely used in various industries.

Ball valve and plug valves is belong to one type of valve, only it to close a is a ball, ball rotates around the centerline of the body to achieve a kind of open and close the valve.