Product Introduction
Knife gate valves are designed to provide an optimal performance in heavy applications within the paper, oil and mining industry. For example, when a possible accumulation of foreign materials does not allow the use of conventional shut-off valves, the knife gate valve is the right solution.
Knife gate valves features short face-to-face dimension, also features stable operation, no vibration and noise, easy to maintain. And upon request valves can be offered with manual, pneumatic, electric or hydraulic actuated remote-control service. Both soft seal and metal seal are available.

Technical Specification
Design Standard: MSS SP-81, JB/T 8691
Size Range: 2"-24" (DN50-DN600)
Pressure Rating: 150psi
Body Material: Carbon steel, Stainless steel
Seat Material: PTFE, RTFE, Stainless steel, Co-Cr alloy, Rubber
End Connection: LUG, WAFER
Operation: Handwheel, Gear box, Pneumatic, Electric, Hydraulic devices, etc.
Fire Safe Design: Yes
Brand: Neway
Temperature: -29℃ to 150℃ (soft seal); -29℃ to 300℃ (metal seal)

Typical Applications
Mining, Power plant, Urban sewage treatment, Food and beverage, paper mill, pharmaceutical, petroleum and chemical industry, Shipbuilding Industry, etc.

Features of Soft Seal Knife Gate Valves
1, Utilizing position limited device to prevent the valve being over opened or closed.
2, Grease device is installed for injecting grease to reduce part wear and operation torque.
3, Lugs are designed on yoke for installing pin and lock to prevent unauthorized operation.
4, Blade side round – shape configuration greatly reduces packing wear during operation, improve the sealing performance and extend valve service life.

Features of Metal Seal Knife Gate Valves
1, Grease device in installed for injecting grease to reduce part wear and operation torque.
2, Lugs are designed on yoke for installing pin and lock to prevent unauthorized operation.
3, Blade side round -shape configuration greatly reduces packing wear during operation, improve the sealing performance and extend valve service life.
4, Stoppers are designed to prevent blade being over closed.

Picture Show

FAQ
Q: What are the advantages of soft seal knife gate valves and metal seal knife gate valves?
A: If soft seal knife valve utilizes RTFE as the seat ring material, bi-directional sealing and zero-leakage can be achieved. For metal seal knife valves, hardened sealing face not only ensures the sealing performance, also extend the lifespan of the sealing face.