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Needle Valve is an important part of the pipe system, main valve and ball valve, its purpose is to open or cut off the pipeline access road with.
Sleeve-type meter valve with easy installation and removal, connection tightening is conducive to fire, explosion and high voltage capability, good sealing performance, is one of power plants, oil refineries, chemical equipment and instrument measurement of the line of an advanced connection valve.
Needle valve sealing good, long life, even if the sealing surface is damaged, only need to replace the wearing parts, you can continue to use.
Should be installed so that the flow of media and the arrow on the body in the same direction.
Manual valves, ball valve can be installed in any position in the pipeline.