This Standard covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for pipe flanges in sizes NPS 26 through NPS 60 and in ratings Classes 75, 150, 0300, 400, 600, and 900. Flanges may be cast, forged, or plate (for blind flanges only) materials, as listed in Table 1A. Requirements and recommendations regarding bolting and gaskets are also included.
ASME B16.47-2006 history
1970ASME B16.47-2020 Large diameter steels flanges - NPS 26 through NPS 60; Addenda
2017ASME B16.47-2017 Large Diameter Steel Flanges: NPS 26 Through NPS 60 Metric/Inch Standard
2011ASME B16.47-2011 Large Diameter Steel Flanges: NPS 26 through NPS 60 Metric/Inch Standard
2006ASME B16.47-2006 Large Diameter Steel Flanges NPS 26 Through NPS 60 Metric/Inch Standard
1996ASME B16.47-1996 Large diameter steel flanges - NPS 26 through NPS 60