... " 2.Pressure:Class150/300 3.Seal:Rubber, PTFE, Stainless Steel Cast Iron Wafer Type Flanged Knife Gate Valve1. Size:2"-80"2 ... and API 6D.4. Body/Bonnet:Carbon Steel, Stainless Steel, Cast Iron, Ductile Iron.5. Seal: Rubber, PTFE, Stainless steel, Hard Alloy 6 ... . Media: Paper pulp, Dirty Water, Coal Slurry, Ashes, etc8.Dimensions: Cast Iron Wafer Type Flanged Knife Gate Valve