(www.noreva.de)   For decades, the experts at Mannesmann, Demag Meer in Monchengladbach has manufactured non-return valves. The foundations of NOREVA GmbH are built on the experience and know-how of these experts. Typical fields of use include: oil and gas pipelines, iron and steel mills, chemical plants, pumping stations in water works, conventional and nuclear power plants, gas compressor stations, etc. Non-return valves in sizes from 1” up to 88” and pressure ratings up to Class 2500, working at temperatures from -196 °C up to 500 °C . NOREVA’s manufacturing process uses only metallic materials. Please refer to our materials table for the standard models. models, also design and manufacture special non-return valves according to customer’s requirements.   MAKER NAME DESCRIPTION MAX. SIZE MAX. PRESSURE ◎ NOREVA, GERMANY * Non Slam Check Valve * Materials : - Carbon Steel                   - Stainless Steel                   - Alloy Steel                   - Nickel Alloy Steel                   - Duplex & Super Duplex 88 inch ANSI CL.2500