which code
which code
(OP)
seems both B31.1 & B31.3 cover piping systems with steam , what determines whether a system is designated B31.1 0r B31.3 , does the fact that a small packge boiler is present in a piping system make it fall under B31.1





RE: which code
Power Piping - piping typically found in electric power generating stations, in industrial and institutional plants, geothermal heating systems, and central and district heating and cooling systems.
Process Piping - piping typically found in petroleum refineries; chemical, pharmaceutical, textile, paper, semiconductor, and cryogenic plants; and relation processing plants and terminals.
So where the system is used is the deciding factor of which code applies.
RE: which code