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Interpretation of the working principle of ball valve

2021-12-08
The opening and closing parts of the ball valve are a ball, which is rotated around the center line of the valve body to open and close the valve. The valve is opened or closed by rotating the stem. Ball valve spool is a ball with a hole, when the central axis of the hole and the central axis of the valve inlet and outlet coincide, the valve opens; When the ball is rotated 90° so that the central axis of the hole is perpendicular to the central axis of the valve inlet and outlet, the valve is closed.

Ball valve switch is light, small size, can be made into a large diameter, simple structure, convenient maintenance, sealing surface and spherical surface is often in a closed state, not easy to be washed by the medium, widely used in various industries.

The working principle of ball valve is as follows:
When ball valve rotation 90 degrees, in the inlet and outlet should be all present spherical, so as to close the valve, cut off the flow of media.
When the ball valve turns 90 degrees, in the inlet and outlet should be all present ball mouth, so as to open the flow, and basically no flow resistance.