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Sprocket Wafer Type Knife Gate Valve IntroductionRelease Date: May 24, 2017
Sprocket wafer type gate valve is a kind of knife gate valve. The opening and closing part of the knife gate valve is a gate. The movement direction of the gate is perpendicular to the fluid direction. The knife gate valve can only be fully opened and fully closed, and cannot be adjusted and throttled. The gate has two sealing surfaces. The two sealing surfaces of the most commonly used mode gate valves form a wedge, and the wedge angle varies with the valve parameters, usually 50. The gate of a wedge knife gate valve can be made into a whole, called Rigid gate; it can also be made into a gate that can produce slight deformation to improve its processability and make up for the deviation of the sealing surface angle during processing. This type of gate is called an elastic gate when the knife-type gate valve is closed. It can only rely on the medium pressure to seal, that is, rely on the medium pressure to press the sealing surface of the gate to the valve seat on the other side to ensure the sealing of the sealing surface. When the valve is closed, it is necessary to force the gate to the valve seat by external force to ensure the tightness of the sealing surface. This type of valve should generally be installed horizontally in the pipeline.