... Wafer Type Flanged Knife Gate Valve 1.Size:2"-80" 2.Pressure:Class150/300 3.Seal:Rubber, PTFE, Stainless Steel Cast Iron Wafer Type ... :Carbon Steel, Stainless Steel, Cast Iron, Ductile Iron.5. Seal: Rubber, PTFE, Stainless steel, Hard Alloy 6. Working temperature ... Hard-seal< 425° C 7. Media: Paper pulp, Dirty Water, Coal Slurry, Ashes, etc8.Dimensions: Cast Iron Wafer Type Flanged Knife Gate Valve