We offer knife gate valve. Features available sizes 3"-36"abrasivion-resistant slurry sleeves are fieldreplaceable, provide bi-directional, drop-tight shut-off and eliminate the need for packing100% full-port designheavy-duty 316l stainless steel getwiper blade cleans debris from gate as it strokesopenclose lock-out feature (optional)robust corrosion-resistanct ductile iron yokegrease fittings for gate and stern lubrication is ductile iron. Ss 304, ss 316, ss 316l, alloy 20, cd4mcu available on request.