Stainless steel knife gate valve adopts the knife type damper,which good shear effect, the most suitable for paste, powder materials, fiber such fluid flow difficult to control.It is the hardware equipment widely used in the paper-making, petrochemical, mining, water drainage, food industries with multiple seats to choose and on the basis of field control requirements, equipped with electric or pneumatic actuators, it can realize the automatic control of valve operation.
Stainless steel knife gate valves is widely used due to its own characteristics.First of all, it has good sealing effect and the U gasket has good elasticity; Second, its whole path design has strong passing ability; Furthermore, It has a good brake effect, which can effectively solve the containing block, particles and fibers medium brake break leakage phenomenon; Finally, because of its convenient maintenance, you do not have to remove the valve to replace the valve sealing.
When the stainless steel knife gate valve is closed, the sealing surface can only rely on the medium pressure to seal, that is depending on the medium pressure, the disc will be to the other side of the valve seat sealing surface pressure to ensure that the seal face seal, this is the self-seal. Most type of knife gate valve is sealed compulsorily. When the valve is closed, it should rely on the outside force to force the ram pressure to the seat to ensure the sealing surface's sealing.
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