Stainlesss Steel Flange Dimensions BS 4504 PART 1: 1969 SABS 1123 1977 BS 10: 1962 ANSI B 16, 5 Select a Nominal Bore size: Select Nominal Bore Pipe Size 15mm Nominal Bore 0D 21.3 20mm Nominal Bore 0D 26.9 25mm Nominal Bore 0D 33.7 32mm Nominal Bore 0D 42.4 40mm Nominal Bore 0D 48.3 50mm Nominal Bore 0D 60.3 65mm Nominal Bore 0D 76.1 80mm Nominal Bore 0D 88.9 100mm Nominal Bore 0D 114.13 125mm Nominal Bore 0D 139.7 150mm Nominal Bore 0D 168.3/165.1 200mm Nominal Bore 0D 219.1 250mm Nominal Bore 0D 271 300mm Nominal Bore 0D 323.9 350mm Nominal Bore 0D 355.6 400mm Nominal Bore 0D 406.4 450mm Nominal Bore 0D 457.2 500mm Nominal Bore 0D 508 600mm Nominal Bore 0D 609.9 700mm Nominal Bore 0D 711.2 800mm Nominal Bore 0D 812.8 900mm Nominal Bore 0D 914.4 1000mm Nominal Bore 0D 1016 1200mm Nominal Bore 0D 1220
