Knife Gate Valve with Pneumatic Actuator (GKL)

Knife valves are designed for top performance and a long maintenance-free lifetime. The stainless steel Knife gate is precision–buffed for tight shut-off. Its knife–like edge cuts through heavy or highly viscous fluids. Knife edges are machine chamfered to reduce packing wear. The brass stem nut makes opening & closing the valve smooth and speedy with low torque requirements. A knife valve can be installed between two pipe flanges as a wafer type and shall be used in different industries. Because of the special design, the least contact would occur between moveable parts and the body. The gate moves upward and downward through layers of packing without any touching the body and never collect any heavy viscous fluids or pulverized material and powder on the blade. The knife valve can tolerate heat expansion as hot fluid pass through. Knife valves can be installed at the end of the pipeline as a lug.


Size (mm): 50-1000

Pressure rating: 2-10 (bar)
Body Material: All Types of Ductile Cast Iron, Cast Steel, Stainless Steel, Copper Alloys
Disc Material: Stainless Steel

Corrosion protection:

All casting parts are coated with epoxy powder RAL 5005 or 5015 by electrostatic method.


  • Syrups.
  • Chemical plants.
  • Thermal Power Plants.
  • Displacing powder material.
  • Food and drinking industries.
  • Paste industries particularly paper paste.
  • Glue and adhesive production with heavy viscosity, sewage water, and chemical sludge.