Main Parameters Nominal Bore: 65mmMax. working pressure: 21MPaHydraulic Pressure Sealing Test: 21MPaWater Pressure Test for Strength: 42MPaVertical Diameter of Tubing Head: 160mmWorking Medium: oil, waterConnecting Tubing: 2 7/8″ EUEConnecting Casing: 5 1/2″Connection Type: Clamp Connector