Knife gate valves offer advantages such as simple and compact structure, reasonable design, lightweight and material-saving design, reliable sealing, easy and flexible operation, small size, smooth flow path, low flow resistance, light weight, and easy installation and assembly. They completely solve the problems of large weight, high flow resistance, large area, and difficult installation associated with ordinary gate valves, flat gate valves, globe valves, regulating valves, butterfly valves, and ball valves. They can replace general-purpose shut-off valves and regulating valves and can operate normally under working pressures of 1.0MPa-2.5MPa and operating temperatures of -29-550℃. The gate of the knife gate valve has a shearing function, which can scrape off adhering substances on the sealing surface and automatically remove debris. The stainless steel gate prevents sealing leakage caused by corrosion.

Knife gate valves are suitable for use in coal preparation, slag removal, rural sewage treatment, and in oil, water, and steam pipelines in industries such as mining and power plants, food processing, papermaking, pharmaceuticals, petroleum, and chemicals. They are used to connect or disconnect media such as cement slurry, gold ore powder, mineral sand, slag, coal slime, pulp, wood pulp, tailings, fiber, dust, wastewater from chemical treatment plants, sedimentation tanks, asphalt, silo outlets, fruit, grain, and slaughterhouse wastewater.

The knife gate valve has the following thirteen advantages:

Advantage 1: The liftable gate sealing surface can scrape off adhering substances and automatically remove debris.

Advantage 2: The stainless steel gate prevents sealing leaks caused by corrosion, and fine grinding and polishing treatment achieves better sealing performance. The bottom end of the blade is machined into a knife-edge shape, which has a cutting function for soft materials such as fiber, pulp, and wood pulp, while also providing good opening and closing action. The upper part of the blade is equipped with a hardened PTFE scraper to prevent dust, grit, and other abrasive substances from entering the stuffing box, significantly improving blade life.

Advantage 3. The stainless steel valve body is durable and robust. The reinforced rib design enhances valve body strength, and the double-ended screw allows for faster opening and closing.

Advantage 4. The integral stainless steel construction prevents corrosion damage. Both the valve body and stuffing box are precision cast. The valve body uses a flanged integral casting, with materials selectable according to user needs (304, 316, 316LWCB2Crl3). The sealing ring uses PTFE-reinforced polytetrafluoroethylene, which is corrosion-resistant, wear-resistant, and non-stick.

Advantage 5. The fully circular direct-flow channel design prevents slag accumulation and blockage.

Advantage 6. The scientifically designed upper sealing stuffing box ensures a safe, effective, and durable seal.

Advantage 7. The short structural length saves materials and installation space, while also effectively supporting pipeline strength.

Advantage 8. The triangular support saves raw materials while ensuring the required mechanical properties.

Advantage 9. The guide block on the knife gate valve body ensures the correct movement of the gate. The compression block ensures effective sealing of the gate.

Advantage 10. The knife gate valve can be equipped with any drive mechanism.

Advantage 11. The V-shaped gate can be used as a regulating valve.

Advantage 12. Compact design, small footprint, lightweight, inexpensive, easy to install, excellent wear-resistant and anti-clogging measures, easy to maintain, convenient to use, and long service life; and any drive mechanism can be selected.

Advantage 13. The valve plate has 5 support points, giving it excellent self-centering. When the valve is closed and subjected to back pressure, the valve plate does not shift.

If you would like to find out more about Knife gate valves or purchase other products, please contact us at sales@weitengroup.com, wwww.weitengroup.com.