... steel / stailess steel Knife gate valve, Chain wheel knife gate valve, pneumatic knife gate valve, electric knife gate valve. Knife gate valveDesign and manufacture standard ... steel, Hard Alloy 5). Working temperature: Rubber <100'C, Hard-seal< 425'C 6). Suitable Media: Paper pulp, Dirty Water, Coal Slurry ... neede. Welcome to contact us for more information. 5K Knife gate valve