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Flat knife gate valve

What is a Knife Gate Valve?

A knife gate valve is a special gate valve with a knife-shaped blade. The sharp bottom edge can cut through fiber, particles, slurry and other solid-laden media. Simple structure, low flow resistance, reliable sealing.

Knife gate valves are the preferred choice for mining, paper, wastewater and other industries handling slurry and solid-laden fluids.

Technical Specifications

ParameterRange
Size RangeDN50 - DN1200 (2" - 48")
Pressure ClassPN6 - PN25 (Class 150)
Temperature Range-20°C to +200°C
Body MaterialsCast iron, Ductile iron, WCB, SS304, SS316
Blade MaterialsSS304, SS316, Duplex, Surface hardened
Seat MaterialsEPDM, NBR, PTFE, Metal
End ConnectionsWafer, Lug, Flanged
Design StandardsMSS SP-81, TAPPI TIS 405-8, GB/T 12232

Industry Applications

  • Mining: Tailings, slurry pipelines — Mining knife gate valve
  • Paper: Pulp lines, black liquor — Stainless steel knife gate valve
  • Wastewater: Sludge lines, screens — Cast iron knife gate valve
  • Food: Fruit/vegetable pulp, starch — Sanitary knife gate valve
  • Power: Ash handling, FGD — Wear-resistant alloy knife gate valve
  • Chemical: Catalyst slurry, polymers — Stainless steel knife gate valve

Need Knife Gate Valve Solutions?

Our engineering team can recommend the optimal knife gate valve for your slurry application. MSS SP-81 certified.

Email: info@chlgvalve.com Call: +86-15601794339