... NBR)-10°C to 120°C (EPDM)Suitable MediaWater, Oil and gas.Materials:Body: cast iron, ductile iron, WCB, SS ... shutting off the flow of corrosive or non corrosive gases, liquids and semiliquid. It can be installed in any selected position ... medicine, textile, paper making, hydroelectricity engineering, building, water supply and sewage, metallurgy, energy engineering as well as light industry. Wormgear ...