Introduction to pneumatic knife gate valves made in China from buzai232's blog

axial check valve, also known as knife type gate valve, slurry valve.It is the opening and closing of a ram, the ram of the motion direction and perpendicular to the direction of flow on the blade shape ram can cut fiber cutting medium, sealing face has two gate, two of the most commonly used mode gate valve sealing surface form a wedge, the wedge Angle vary with the valve parameters, usually for 5 °, wedge type knife gate valve disc can be made into a whole, is called a rigid disc; Also can be made to produce a small amount of deformation of the gate, in order to improve its technology, to make up for the sealing surface Angle in the processing of the deviation, such a gate is called the elastic gate. In fact, there is no chamber in the valve body, the gate is raised or lowered in the side guide groove, and the bottom lug is pressed tightly on the valve seat. If the sealing performance of the medium is higher, the o-shape sealing valve seat can be selected to achieve two-way sealing. Knife gate valve has small installation space, low working pressure, not easy to accumulate sundries, low price.