With handwheel, pneumatic, Bevel gear, Electric operated. Size from DN50-1800mm JIS,DIN, ... , material: Carbon Steel (WCB), Stainless Steel (SS304, SS316, SS301, 316L), Cast Iron 4). Seal: Rubber, PTFE, Stainless steel, Hard Alloy 5 ... neede. Welcome to contact us for more information Lug type pneumatic knife gate valve