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Knife Gate Valve

Knife Gate Valve

Type knife gate valve is closed, sealing surface can only rely on medium pressure to seal, that depend on medium pressure, the disc will be to the other side of the valve seat sealing surface pressure to ensure that the sealing surface sealing, it is the seal, most is adopt compulsory seal gate valve, the valve is closed, to rely on outside force forced the ram pressure to the seat, to ensure the sealing surface sealing. 
This kind of valve should be installed vertically in the pipeline.
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