Carbon Steel Knife Gate Valve Knife gate valves provide a lower valve pressure drop and are better suited for handling slurries, solids, and other fluid/solids mixtures than ordinary plug, butterfly, or ball valves. Supcon manufactures knife gate valves for pulp and paper, chemical, petrochemical, power, mining, wastewater and other applications. Benefits Valve field maintenance External access to gland packing allows replacement of the packing ring without removing the valve from the pipeline. Long service life The bottom edge of the blade is curved for high cutting power. Precision grinding and hard chrome plating, smooth blade surface, increased wear resistance, long service life Self-adjusting flexible valve seat supported by O-ring, high wear resistance and long service life. Reliable sealing Grommets can be adjusted to restore sealing during maintenance work Easy to actuate The stem nut is supported by needle roller bearings, which reduces actuation torque and is easy to actuate.