ball valve is a kind of only need to rotate 90 degrees of operating and small rotational torque can be closed tightly, completely through the valve body cavity for medium resistance is very small, straight flow channel. Usually do think most suitable direct ball valve open and close, but recent development has put a ball valve designed to make it with throttling and control flow. Ball valve itself is the main characteristics of compact structure, easy operation and maintenance, and is applicable to water, solvent, acid and gas, such as general work medium, but also is suitable for the working conditions of media, such as oxygen, hydrogen peroxide, methane and ethylene. Ball valve body can be a whole, also can be combined.

the development evolution and the working principle of

ball valve is evolved by the cock valve. It has the same rotate 90 degrees to action, different is the cock body is ball, a round hole or channel through its axis. Spherical and opening ratio should be such, that is when the ball rotate 90 degrees, in the inlet and outlet should be completely present spherical, thereby blocking flow. Advantages:

fluid resistance is small, the resistance coefficient and the equivalent length of pipe section;

simple structure, small volume, light weight;

close and reliable, and the widespread use of plastic ball Industrial Valves sealing surface of materials, good sealing, also has been widely used in vacuum system;

it is easy to operate, open and close quickly, from open to close as long as you rotate it 90 & deg; To facilitate remote control;

convenient maintenance, ball Industrial Valves has simple structure, sealing ring, which generally remove the replacement is convenient;

in full open or full close, sphere and valve seat sealing surface and the dielectric isolation, medium through, does not cause the valve sealing surface erosion;

applicability is wide and size from small to several millimeters, big to a few meters, from high vacuum to high pressure can be applied.

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