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Card stop valve: (also known as needle valve) is an important part of instrumentation piping systems, there are stop valves and ball valves, its function is to open or cut off the pipeline access. Cartridge meter valve has the advantages of convenient installation and removal, fastening, conducive to fire, explosion and pressure resistance, good sealing performance, etc., is an advanced connection in power plant, oil refining, chemical plant and instrumentation measuring pipelines The valve. This type of valve in the pipeline should be generally horizontal installation. Card stop valve sealing is good, long life, even after the sealing surface is damaged, only need to replace the vulnerable parts, you can continue to use. Installation should be the direction of the medium and the arrow on the valve body in the same direction. More keyword search: Globe valve