Description

This Power Piping Code is one of several Sections ofthe American Society of Mechanical Engineers Code forPressure Piping, B31. This Section is published as a separatedocument for convenience.

Standards and specifications specifically incorporatedby reference into this Code are shown in Table 126.1. Itis not considered practical to refer to a dated edition ofeach of the standards and specifications in this Code.Instead, the dated edition references are included in anAddenda and will be revised yearly.

This Code prescribes requirements for thedesign, materials, fabrication, erection, test, inspection,operation, and maintenance of piping systems.Piping as used in this Code includes pipe, flanges,bolting, gaskets, valves, pressure-relieving valves/devices, fittings, and the pressure-containing portionsof other piping components, whether manufactured inaccordance with Standards listed in Table 126.1 or speciallydesigned. It also includes hangers and supportsand other equipment items necessary to preventoverstressing the pressure-containing components.

Rules governing piping for miscellaneous appurtenances,such as water columns, remote water level indicators,pressure gages, gage glasses, etc., are includedwithin the scope of this Code, but the requirements forboiler appurtenances shall be in accordance withSection I of the ASME Boiler and Pressure Vessel Code,PG-60.

The users of this Code are advised that in some areaslegislation may establish governmental jurisdiction overthe subject matter covered by this Code. However, anysuch legal requirement shall not relieve the owner ofhis inspection responsibilities specified in para. 136.1.