... Pressure:0.6MPa-2.5MPa Material:F304,F316,F304L,F316Letc double flange expansion jointSpecificationsA) Shock absorption expansion joint ; B) Easy installment and ... application of limit bolts to both ends of the flange together. 6. Flange connection standard adopt GB4216.3-4216.5 standard, as ... working pressure 0.6MPa, 1.0MPa, 1.6MPa, 2.5MPa. double flange expansion joint