Wafer Type Butterfly Valve 1)Size:DN50-DN300 2)Material:CI/DI BODY + DI/CF8/CF8M/C95400 DISC+EPDM SEAT These products are widely used in water source projects, urban water supply and drainage, sewage treatment, electric power, petroleum, petrochemical, heat supply, shipbuilding, medicine and metallurgy industries. Valves used for regulating or cutting off liquids in pipelines. Liquids available ...