Rectangle Knife gate valves with handwheel,pneumatic,electric JIS, ANSI,DIN,GB standard Size DN50-1000mm NPS: ... , Chain wheel knife gate valve, pneumatic knife gate valve, electric knife gate valve. Knife gate valveDesign and manufacture standard: GB/T, ANSI ... Slurry, Ashes, etc/7). Operation type: Hand wheel, pneumatic, bevel gear, electric and so onOur products are widely used in paper making ...