China GG-20 Steam Pressure Reducing Valve Manufacturer Shinjo Supplies GG-20 Steam Pressure Reducing Valve, DP163, 2.5 Mpa, Super High Sensitivity.Performance: Nominal Pressure: 2.5 MPa. Casing Body Test Pressure: 3.75 MPa. Sealing Test Presure: 2.5 MPa. Max. nlet presure: 2.5 ...