Knife-type gate valve has the advantages of simple and compact structure, reasonable design, light materials, reliable sealing, light and flexible operation, small size, smooth passage, small flow resistance, light weight, easy installation, easy disassembly and other advantages. Gate valves, globe valves, regulating valves, butterfly valves, ball valves and other valves of heavy weight, large flow resistance, large area, difficult to install and other difficult problems, can replace the common cut-off valve and control valve, the working pressure of 1.0MPa-2.5MPa, Temperature -29-550 ℃ under normal circumstances. Knife gate knife gate has a shear function, scraping the sealing surface of the adhesive, automatically remove debris, stainless steel gate to prevent corrosion caused by the seal leak. Knife gate valve made in accordance with different caliber dark rod and rod two forms (dark rod DN50 ~ 900mm, bright rod DN50 ~ 900mm). Knife gate valve can be made inside V-shaped, triangular, pentagonal channel. V-type gate can be used as a regulator control. Knife gate valve connection in the form of clip-on, flange-style ear, sealed metal to metal hard seal, metal on the polyurethane, with enhanced PTFE soft seal. Knife gate valve by transmission can be divided into: manual (hand wheel, manual zipper), worm gear (spur gear transmission, bevel gear drive), pneumatic, electric, hydraulic, etc .; knife gate valve according to the control method can be divided into: Manual control, pneumatic control, electromagnetic control, analog remote computer control. Application of knife gate valve knife gate valve is suitable for mining power plant coal preparation, slag discharge, urban sewage treatment, food, paper, medicine, petroleum, chemical and other oil, water, steam pipeline, connected or cut off the pipeline Such as cement slurry, gold ore, ore, slag, slime, pulp, wood pulp, tailings, fiber, dust, chemical treatment effluent, sedimentation tank, asphalt, silo export, fruit, cereal, . Knife gate valve product features 1 can improve the sealing surface of the gate, scraping the sealing surface of the adhesive, automatically remove debris. 2. Stainless steel gate to prevent corrosion caused by leakage seal, grinding and polishing can get better sealing effect. The bottom of the blade is processed into a knife-edge shape, the soft material such as fiber, pulp, wood pulp has cut off function, at the same time have a good opening and closing effect. In the upper edge of the blade is installed a hard Teflon scraper to prevent dust, gravel and other abrasives into the stuffing box, can significantly increase the life of the knife. 3. Stainless steel body durable, body rib design to improve the body strength, double-headed screw opening and closing more quickly. 4. The overall stainless steel, to prevent corrosion damage. The valve body and packing culvert are all precision castings, of which the valve body is flanged and integrally cast, the material can be selected according to user needs 304,316,316L, WCB, 2Crl3, PTFE reinforced PTFE ring PTFE material, corrosion resistance, Wear-resistant, non-stick residue. 5. Full circular DC channel design does not slag, no jamming. 6.Scientific seal packing design, so that the seal is safe and effective, durable. 7. Short structural length, can save raw materials, installation space, but also effectively support the pipe strength. Triangular bracket to save raw materials, to ensure the mechanical properties needed. 9. Knife gate valve body guide block to make the correct movement gate. Squeeze block to ensure effective sealing of the gate. 10. Knife gate valve can also choose any drive mechanism. 11. V-type gate can be used as a control valve. 12. Compact design, small footprint, light weight, low price, easy to install, wear-resistant anti-blocking measures to improve, easy maintenance, easy to use and long life, and optional drive. 13. Valve plate has 5 support points, so that the valve plate has a good self-aligning.