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Ball valve
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Ductile iron(DI) pipe fittings
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Seven advantages of the ball valve

The ball valve and the plug valve are the same type of valve, only the closing member of which is a ball, and the ball rotates around the center line of the valve body to open and close a valve. The ball valve is mainly used in the pipeline to cut, distribute and change the flow direction of the medium. Ball valve is a new type of valve widely used in recent years, which has the following advantages:

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1. The fluid resistance is small, and the resistance coefficient is equal to the pipe length of the same length.
2. Simple structure, small size and light weight.
3. It is close and reliable. At present, the sealing surface material of the ball valve is widely used in plastic and has good sealing performance. It has also been widely used in vacuum systems.
4, easy to operate, open and close quickly, from full open to full off as long as 90 ° rotation, easy to control over long distances.
5, the maintenance is convenient, the ball valve structure is simple, the sealing ring is generally active, and it is convenient to disassemble and replace.
6. When fully open or fully closed, the sealing surface of the ball and the valve seat is isolated from the medium. When the medium passes, it will not cause erosion of the sealing surface of the valve.
7, a wide range of applications, from small to a few millimeters, up to a few meters, from high vacuum to high pressure can be applied.
Ball valves have been widely used in petroleum, chemical, power generation, paper, atomic energy, aviation, rocket and other departments, as well as people's daily lives.