Flange Standards

There are a variety of standards used in the design and selection of flanges. The
following codes and standards relate to pipe flanges:
ASME Codes and Standards:
B16.1 Cast Iron Flanges and Flanged Fittings
B16.5 Pipe Flanges and Flanged Fittings
B16.24 Bronze Flanges and Fittings–150 and 300 Classes
B16.42 Ductile Iron Pipe Flanges and Flanged Fittings–150 and 300 Classes
B16.47 Large Diameter Steel Flanges