The DX knife gate valves from Red Valve, are designed for heavy slurry applications in the power and mining industries. When the valve opens, the reinforced elastomer sleeves seal against each other and provide a 100% full port opening, minimizing turbulence and wear. The seats isolate and protect all metal parts of the valve from coming in contact with the process.  When the valve is closed, the sleeves provide a drop tight seal in both directions. Each time the Series DX valve strokes, it discharges a small amount of slurry out of the valve, keeping the gate path and seat area clear of entrapped particulates.