Thirteen characteristics of knife gate valve

Knife gate valve has the advantages of simple and compact structure, reasonable design, light material, reliable sealing, light and flexible operation, small size, smooth channel, small flow resistance, light weight, easy installation, and easy disassembly. It completely solves ordinary gate valves and flat plates. Valves such as gate valves, globe valves, control valves, butterfly valves, and ball valves have large weight, large flow resistance, large area, and difficult installation problems. They can replace general shut-off valves and control valves. They can be used at working pressures of 1.0MPa-2.5MPa. Temperature -29-550 °C normal work. The gate of the knife gate valve has a cutting function, which can scrape off the adhesive on the sealing surface and automatically remove the impurities. The stainless steel gate plate can prevent the seal leakage caused by corrosion.

Knife gate valve is suitable for coal preparation, slag discharge, urban sewage treatment, food, papermaking, medicine, petroleum, chemical and other oil products, water and steam pipelines of mine power plants. It connects or cuts cement slurry and gold in pipelines. Powder, mineral sand, slag, slime, pulp, wood pulp, tailings, fiber, dust, chemicals, sewage, sedimentation tanks, asphalt, silo exports, fruits, grain, slaughterhouse wastewater and other media.

1. The sluice sealing surface can be lifted to remove the sticky material on the sealing surface and remove the impurities automatically.

2. The stainless steel gate plate can prevent the seal leakage caused by corrosion, and the fine grinding and polishing treatment can obtain a better sealing effect. The bottom of the blade is machined into a blade shape, which has the function of cutting off the soft materials such as fiber, pulp and wood pulp, and has a good opening and closing effect. A hard Teflon scraper is installed on the upper side of the blade to prevent dust, gravel, and other abrasive materials from entering the stuffing box, which can significantly improve blade life.

3. The stainless steel valve body is durable and durable. The valve body reinforcement design improves the strength of the valve body. The double-headed screw uses the opening and closing more quickly.

4. The overall stainless steel material prevents corrosion damage. The valve body and the filler culvert are precision casting. The valve body adopts flange-type integral casting. The material can be selected as 304, 316, 316L, WCB, 2Crl3 according to the user's needs. The sealing ring is made of PTFE-reinforced Teflon, corrosion-resistant, Wear-resistant, no slag.

5. The full circular DC channel design has no slag or jamming.

6. The scientific design of the sealed stuffing box makes the seal safe, effective and durable.

7. Short structure length can save raw materials, installation space, and effectively support pipeline strength.

8. Triangular brackets save raw materials and ensure the required mechanical properties.

9. The guide block on the body of the knife gate valve causes the gate to move correctly. The squeezing block ensures effective sealing of the ram.

10. Knife gate valve can also choose any drive mechanism.

11. V-type gate can be used as a regulating valve.

12. Compact design, small footprint, light weight, cheap, easy to install, wear-resistant anti-blocking measures, easy maintenance, easy to use and long life, and can choose any drive device.

13. The valve plate has 5 support 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.