Knife-type valve and the use of technical features of Notes

Knife-type gate valve product use and characteristics of note: the knife-type gate valve is the gate thing, flashboard fluid movement direction and vertical direction, knife-type gate valve can only be full and all related and can not to make adjustments and cut expenditure. There are two gate sealing surface, the most commonly used mode of gate valve sealing surface to form two wedge-shaped, wedge-shaped valve angle parameters vary, usually 50, wedge-type knife gate valve can be made of a whole called rigid ram; can also be made to produce micro-deformation of the gate, so as to improve its process, and cover the sealing surface in the processing point of view of the deviation process, the gate is called a flexible-type knife gate valve closed , can only rely on the sealing surface to seal the pressure medium, which will rely on the medium pressure ram pressure of the sealing surface to the other side of the valve seat to ensure the sealing surface of the seal, which is self-sealing. The majority of knife-type gate valve seal is mandatory, that is, the valve closed, will be forced to rely on external pressure to the valve seat gate to ensure the tightness of the sealing surface.
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