ball valve

A ball valve is a valve that is driven by a valve stem and rotates around the axis of the ball valve. It can also be used for fluid regulation and control. Conventional ball valves include handle switches, worm gear switches, pneumatic switches, electric switches, and hydraulic switches. High quality ball valve manufacturers produce various standard ball valves, such as American standard ANSI, German standard DIN, British standard EN, Japanese standard JS, national standard GB ball valves, etc.