Introduction of Manual Knife Gate Valve

The manual knife gate valve is mainly applied to coal washing plant or mineral processing plant Pipeline which can make switching time unrestricted or installed in spare valve which can make overhaul easily. Its applicable medium includes bauxite slurry, asphalt, catalyst residue, silt, concrete mud, mortar, pulp, cement, paraffin, slag, sawdust, ash, clay, pulverized coal, etc. The manual knife gate valve has some advantages of simple structure, light weight, flexible starting, easy installation and replacement, and lower maintenance cost. The upside of the valve body is a Hand-wheel device which significantly reduces the total weight of valve body. When the handwheel is turned clockwise, the valve is turned on, otherwise it is turned off.

Materials of each valve part

• Valve body: Clip-on cast steel valve body; SS304 stainless steel in the nominal diameter
• Valve plate: SS304 stainless steel
• Valve seat sealing face: Hard seal plus soft seal, and soft seal is silica gel
• Upper seal: PTFE Packing
• Valve stem: 2Cr13
• Nut material: Ductile cast iron
• Hand wheel: Ductile iron
• Packing gland&packing plate: Cast steel