Red Valve”s Flexgate slurry knife gate combines the advantages of a pinch valve and a knife gate valve, offering a full-port, bidirectional seal and a replaceable rubber wear surface. An inverted stuffing box makes packing replacement easy, with no need for the valve to be removed from the line. The valve can be actuated manually, pneumatically, or electrically. Applications include fly ash, bottom ash, mine tailings, phosphate, thickener underflow, pulp stock, liquors, and slurries of all types.