Knife gate valve features

by:Lianke Valve     2022-08-23
The following introduces the characteristics, uses and functions of the knife gate valve. 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 passage, small flow resistance, light weight, easy installation and disassembly, etc. Gate valve, globe valve, regulating valve, butterfly valve, ball valve and other valves have difficult problems such as heavy weight, large flow resistance, large area and difficult installation. They can replace general shut-off valves and regulating valves. It works normally under the temperature of -29-550℃. The gate of the knife gate valve has a shearing function, which can scrape off the adhesive on the sealing surface and automatically remove the sundries. The stainless steel gate can prevent the seal leakage caused by corrosion. Knife gate valve is suitable for coal preparation, slag discharge, urban sewage treatment, food, paper, medicine, petroleum, chemical and other oil, water and steam pipelines in mining power plants, connecting or cutting off cement slurry, gold mine in pipelines Powder, ore, slag, coal slime, pulp, wood pulp, tailings, fiber, dust, chemical treatment sewage, sedimentation tank, asphalt, silo outlet, fruit, grain, slaughterhouse wastewater and other media. 1. The liftable gate sealing surface can scrape off the adhesive on the sealing surface and automatically remove the sundries. 2. The stainless steel gate can prevent seal leakage caused by corrosion, and the fine grinding and polishing treatment can obtain better sealing effect. The bottom end of the blade is processed into a blade shape, which has the function of cutting off soft materials such as fiber, paper pulp and wood pulp, and has a good opening and closing function at the same time. A hard polytetrafluoroethylene scraper is installed at the top of the blade, which can prevent dust, grit and other abrasive substances from entering the stuffing box, which can significantly improve the life of the blade. 3. The stainless steel valve body is durable, the valve body reinforcement design improves the valve body strength, and the double-head screw is used to open and close more quickly. 4. The overall stainless steel material can prevent corrosion damage. The valve body and packing culvert are all precision casting. The valve body is integrally cast by flange type. The material can be selected from 304, 316, 316L, WCB, 2Crl3 according to user needs. Wear-resistant, non-stick slag. 5. The full-circle DC channel design has no slag and no jamming. 6. The scientific upper seal stuffing box design makes the upper seal safe, effective and durable. 7. Short structure length can save raw materials, installation space, and effectively support pipeline strength. 8. The triangular bracket saves raw materials and ensures the required mechanical properties. 9. The guide block on the valve body of the knife gate valve makes the gate move correctly. Extrusion blocks ensure effective sealing of the gate. 10. Knife gate valve can also optionally choose a drive mechanism. 11. The V-shaped gate can be used as a regulating valve. 12. Compact design, small space occupation, light weight, low price, easy installation, perfect wear-resistant and anti-blocking measures, easy maintenance, convenient use and long service life, and the drive device can be selected arbitrarily. 13. The valve plate has 5 supporting points, so that the valve plate has a good self-centering. When the valve is closed and subjected to back pressure, the valve plate does not deflect. The above is about the characteristics of the knife gate valve. I introduced it, whether you have a deeper impression of the knife gate valve.
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