Pneumatic knife gate valve is the opening and closing parts of the gate, the direction of the movement of the gate and the direction of the fluid is vertical, manual knife gate valve can only be fully open and fully closed, can not be adjusted and throttling. The gate has two sealing faces, the common mode gate valve two sealing faces to form a wedge, wedge Angle varies with the valve parameters, usually 50, wedge knife gate valve gate 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 technology and compensate for the deviation of sealing face Angle in the process of processing. This gate is called an elastic gate. When knife gate valve is closed, sealing surface can only rely on medium pressure to seal, that is, rely on medium pressure to press the sealing surface of the gate to the other side of the seat to ensure sealing surface, this is self-sealing. Most knife gate valves are force-sealed, that is, when the valve is closed, the gate is forced to the seat by external force to ensure the sealing surface sealing.
Features:
Pneumatic knife gate valve has the advantages of simple and compact structure, reasonable design, light material saving, reliable sealing, light and flexible operation, small volume, smooth channel, small flow resistance, light weight, easy installation, easy disassembly and so on. It can work normally under the working pressure of 1.0Mpa-2.5mpa and the operating temperature of -29-650℃. Knife gate valve with shear function of the gate, can scrape off the seal surface of the stick, automatic removal of debris, stainless steel gate to prevent corrosion caused by sealing leakage.
Pneumatic knife gate valve applicable medium: gold ore powder, tailings, pulp, wood pulp, fiber, dust, chemical treatment sewage, sedimentation tank, ore, slag, coal slime, asphalt, bin export, fruit, grain, cement slurry, slaughterhouse waste water, etc.
