ASME B31.3 Limitations on Flanges
Most flanges in ASME B31.3 piping systems are in accordance with the following listed standards: ANSI B16.1, Cast Iron Pipe Flanges and Flanged Fittings ASME B16.5, Pipe Flanges and Flanged Fittings ASME B16.24, Cast Copper Alloy Pipe Flanges and Flanged Fittings: Classes 150, 300, 600, 900, 1500, and 2500 ASME B 16.36, Orifice Flanges, Classes 300, 600, 900, 1500, and 2500 ASME B 16.42, Ductile Iron Pipe Flanges and Flanged Fittings, Classes 150 and 300 ASME B 16.47, Large D