Knife gate valve, also known as knife gate valve, knife gate valve, slurry valve, mud valve, its opening and closing part is a gate, the direction of movement of the gate is perpendicular to the direction of the fluid, and it is cut off by a blade-shaped gate that can cut fiber materials. Medium, the gate has two sealing surfaces. The two sealing surfaces of the commonly used mode gate valve form a wedge. The wedge angle varies with the valve parameters, usually 5°. The gate of the wedge knife gate valve can be made into a whole , It is called a rigid gate; it can also be made into a gate that can produce slight deformation to improve its manufacturability and make up for the deviation of the angle of the sealing surface during the processing. This kind of gate is called an elastic gate. 

The valve body of the knife gate valve actually does not have a chamber. The gate is raised and lowered in the side guide groove, and is pressed against the seat by the lugs at the bottom. If a higher medium tightness is required, an O-shaped sealing valve can be selected. The seat realizes two-way sealing. Knife gate valve has a small installation space, low working pressure, is not easy to accumulate debris, and the price is low

1. Before installing the knife gate valve, check the inside of the valve cavity and the sealing surface, and no dirt or sand particles are allowed to adhere;

2. The bolts of each connection part shall be evenly tightened;

3. Check that the packing parts are required to be pressed tightly, not only to ensure the tightness of the packing, but also to ensure the flexible opening of the gate;

4. Before installing the valve, the user must check the valve model, connection size and pay attention to the flow direction of the medium to ensure consistency with the valve requirements;

5. When installing the valve, the user must reserve the necessary space for the valve drive;

6. The wiring of the drive device must be carried out according to the wiring diagram;

7. Knife gate valves must be maintained regularly, and collisions and squeezing are not allowed, so as not to affect the sealing.