Size:1/2"-60" or DN15-DN1500 Pressure:150-2500LB or PN16-PN250 or 10K-40K Material:A105,F52,F60,F65,F70,F11,F22,F51,F304,F316, Sealing surface typeNominal Pressure PN/MPabar0.252.50.661.0101.61.62.5254.040Sudden surface (RF)DN10-2000Flat (FF)DN10-2000 1)We blind flange wherever needed.2)We blind flange Small torque of operate3)Flow curve tending to straight the test of tens of thousands opening/ ...