... ANSI B16.47A/B <Large Diameter Steel Flanges> ,B16.36 etc.. a,Nominal pressure ... .0Mpa), 1500psi(25.0Mpa), 2500psi (42.0Mpa), b, The public diameter: 6 ~ 4000mm c, Flange structure type: welding, socket welding, ... , but it is 42Mpa of Americas flange system 2) Nominal diameter: 10mm ~ 4000mm 3) The flange structure: Integral flange Unit ...