About The Three-piece Ball Valve

About the three-piece ball valve

The three-piece ball valve and the gate valves are the same type of valve. The difference is that the closing member is a ball, and the ball rotates around the center line of the valve body to open and close a valve.


The three-piece ball valve is mainly used in the pipeline to cut, distribute and change the flow direction of the medium, and is a ball valve widely used in recent years.

Working Principle:
The ball valve has a motion of 90 degrees of rotation, the body of the plug is a sphere, with a circular through hole or passage through its axis.

The ball valve is mainly used in the pipeline to cut, distribute and change the flow direction of the medium. It only needs to be rotated 90 degrees and the torque can be closed tightly. It is most suitable for use as a switch or shut-off valve, but recent developments have designed ball valves to provide throttling and control flow, such as V-ball valves.

The main features of the ball valve are its compact structure, reliable sealing, simple structure and convenient maintenance. The sealing surface and the spherical surface are often closed, not easily eroded by the medium, easy to operate and maintain, suitable for general work such as water, solvent, acid and natural gas. Medium, but also suitable for medium with harsh working conditions, such as oxygen, hydrogen peroxide, methane and ethylene, which are widely used in various industries. The ball valve body may be integral or combined.

Can be widely used in petroleum, chemical, teaching equipment, light industry, high-voltage equipment, pharmaceutical, paper and other industrial automatic control systems for long-distance centralized control or local control.

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