Structure and working principle of Ball Valve

The ball valve is evolved from the plug valve. Its opening and closing part is a sphere, which is opened and closed by rotating the sphere 90 degrees around the stem axis. The difference is that it is a sphere with a circular through hole or passage through its axis. The ratio of the sphere to the channel opening should be such that when the sphere is rotated 90 degrees, there should be a full sphere at the inlet and outlet, thereby truncating the flow. The role of the ball valve on the pipeline is mainly to cut off, distribute and change the flow direction of the medium, and the ball valve designed as a V-shaped opening also has a good flow regulation function.

How does a ball valve work?
The ball valve has the action of rotating 90 degrees. There is a circular through hole or channel on its axis. Ball valves are mainly used to cut off, distribute and change the flow direction of media in pipelines. Just turn it 90 degrees, and it can be closed with a small rotational torque. Ball valves are most suitable for on-off and globe valves, but more recent developments have ball valves designed to throttle and control flow, such as V-type ball valves.