Lift check valve Technical: Size: DN50-DN300 Nominal Pressure: 1.6MPa/2.5MPa Shell Test Pressure: 2.4MPa/3.75MPa Seal Test Pressure: 1.76MPa/2.75MPa Suitable Medium: Oil Gas Water Standard: 1. Face to face dimensions conforms to DIN2533-2534 2. Face to face dimensions conforms to F1 of DIN3202 contact: tjvalve@tjtvt.com