Knife gate valve is also called knife gate valve, knife gate valve, slurry valve and mud valve. To cut off the medium, the gate has two sealing surfaces. The two sealing surfaces of the commonly used pattern gate valve form a wedge shape, and the wedge angle varies with the valve parameters.

Usually 5°, the gate of the wedge knife gate valve can be made into a whole, called a rigid gate; it can also be made into a gate that can be slightly deformed to improve its manufacturability and compensate the angle of the sealing surface during processing The deviation occurs, this kind of gate is called elastic gate. There are virtually no chambers in the knife gate valve body.

The gate lifts up and down in the guide groove on the side surface, and is pressed tightly on the valve seat by the lug at the bottom. If a higher medium sealing performance is required, an O-shaped sealing valve seat can be selected to achieve two-way sealing. The knife gate valve has a small installation space, low working pressure, and is not easy to accumulate sundries.

The bolts at each connecting part are required to be tightened evenly; check that the packing parts are required to be pressed tightly, not only to ensure the sealing of the packing, but also to ensure that the gate is open and flexible; before installing the valve, the user must correct the valve model, connection size and pay attention to the flow direction of the medium. Ensure the consistency with the valve requirements; when the user installs the valve, it is necessary to reserve the necessary space for the valve to drive.