DN40~DN900 Nominal Pressure: PN1.0/1.6 MPa Mediums: water, sewage etc Temperature: -10~90

Standard:Design standard conform to: MSS SP-67, API609, EN593Connection flange conform to: DIN PN10/16/25, ANSI B16.1, BS4504, ISO PN10/16,JIS B2212/2213, BS 10 Table D, BS 10 Table ETop flange conform to: ISO 5211Face to face conform to: API609, ISO5752 series 20, BS5155Test standard conform to: API598

Design characters:Check valve is used for preventing the back flow of medium in pipelines and equipments. It will open and close automatically by the pressure of medium. When the medium is back-going, valve disc will close automatically to avoid accidents.1. Tightly sealed, without leakage under the water pressure testing.2. Economical, light weight, compact design-significantly lighter and less expensive than comparable swing check valves.3. Easy to install and maintain.

Performance:Nominal Diameter: DN40-DN1200Nominal Pressure PN (MPa):1.0, 1.6, 2.0, 2.5Testing pressure (water) Ps (MPa)Body seat: 1.5 times rated pressureSeat test: 1.1 times rated pressur