DN40~DN900 Nominal Pressure: PN1.0/1.6 MPa Mediums: water, sewage etc Temperature: ... flange conform to: DIN PN10/16/25, ANSI B16.1, BS4504, ISO PN10/16,JIS B2212/2213, BS ... going, valve disc will close automatically to avoid accidents.1. Tightly sealed, without leakage under the water pressure ... ):1.0, 1.6, 2.0, 2.5Testing pressure (water) Ps (MPa)Body seat: 1.5 times rated pressureSeat test: 1.1 times ...