... supply 5. OEM valve accept double disc wafer type check valve The standard of dual disc wafer check ... , ANSI B16.1, BS4504, ISO PN10/16, JIS B2212/2213, BS 10 Table D, BS 10 Table E3 ... sealed, without leakage under the water pressure testing.2. Economical, light weight, compact design-significantly lighter and ... Nominal Pressure PN (MPa): 1.0, 1.6, 2.0, 2.53. Testing pressure (water) Ps (MPa)4. Body ...