What is a pneumatic knife gate valve

Compared with ordinary gate valves, knife gate valves are simple in structure, small in size, flexible in operation, easy to install, and suitable for medium with higher consistency and solid particles. The full-bore knife gate valve design allows the valve to be used under dirty conditions, and the replaceable seat and packing make the valve easy to maintain.

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 most commonly used mode gate valve form a wedge. The wedge angle varies with valve parameters, usually 50. The gate of the wedge knife gate valve can be made into a whole , It is called 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 sealing surface angle in the process of processing. This kind of gate is called an elastic gate. There is no cavity in the valve body. The gate is raised and lowered in the side guide groove, and is pressed against the valve seat by the lugs at the bottom. If you need to achieve a higher medium tightness, you can choose an O-shaped seal valve seat to achieve 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.