... to 64-inch (DN15 to 1,600mm) Meets ASTM A182, A105, ANSI B16.5, B16 ... welding, threaded, lap joint and plateSizes: 1/2 to 64-inch (DN15 to 1,600mm)Meets ASTM A182, A105, ANSI B16 ... , DIN2638, DIN2673 and BS4504 standardsPressure ratings: Class 150, 300, 600, 900, 1500 and 2500PN6, PN10, PN16, PN25, PN40 and PN64JIS ... AT gmail COM Flat Flange with Class 150, 300, 600, 900, 1500 and 2500 Pressure Ratings