... 0.1, 0.25, 0.6, 1.0, 1.6, 2.5, 4.0, 6.4, 10.0, 16.0, 25.0, 32.0, 40.0, Mpa b, ... .0Mpa), 900psi (15.0Mpa), 1500psi(25.0Mpa), 2500psi (42.0Mpa), b, The public diameter: 6 ~ 4000mm c, Flange structure ... : 0.25Mpa ~ 42.0Mpa a, Series 1: PN1.0 PN1.6, PN2.0, PN5.0, PN10.0, PN15.0, PN25.0, PN42 (main series) b, Series ... 2: PN0.25 PN0.6 PN2.5, PN4.0 ...