Goole Valve Technology Co.,Ltd
Address: He_yi Industrial Zone,Oubei Town,Wenzhou City,Zhejiang Province,P.R.China
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E_mail: goole4@goolevalve.com
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Structural principle of ball valve（2）
Structural Principle
Ball valves evolved from plug valves, and their opening and closing parts act as a sphere, rotating 90 degrees around the axis of the valve stem to achieve the purpose of opening and closing. The difference is that the plug body is a sphere, with a circular through-hole or channel passing through its axis. The ratio between the sphere and the channel should be such that when the sphere rotates 90 degrees, it should all appear spherical at the inlet and outlet, thereby cutting off the flow. The function of ball valves on pipelines is mainly to cut off, distribute, and change the direction of medium flow. Ball valves designed with V-shaped openings also have good flow regulation function.
Working Principle
Ball valve has a 90 degree rotation action, and the plug body is a sphere with a circular through-hole or channel passing through its axis. Ball valves are mainly used in pipelines to cut off, distribute, and change the flow direction of the medium. They can be tightly closed with only a 90 degree rotation and a small rotational torque. Ball valves are most suitable for use as switches and shut-off valves, but recent developments have designed them to have throttling and flow control functions, such as V-shaped balls
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