IHS is your source for standards and codes related to power and Process
Power piping means piping systems and their component parts, that
are not building services piping systems, and that may be installed within
electric power generating stations, industrial and institutional plants,
utility geothermal heating systems, and central and district heating and
cooling systems. Power piping includes, but is not limited to, piping used
in the distribution of plant and process steam at boiler pressures greater
than fifteen pounds per square inch gauge, high temperature water piping
from high pressure and high temperature boilers, power boiler steam
condensate piping, high pressure and high temperature water condensate
piping, and compressed air and hydraulic piping upstream of the first stop
valve off a system distribution header.
Process piping means piping systems and their component parts, that
are not building services or power piping systems, and that may be
installed in petroleum refineries, chemical, pharmaceutical, textile,
paper, semiconductor, and cryogenic plants, and related processing plants
ASME B31.1 - Power Piping - 2014 Edition Now
This code contains requirements for piping systems typically found in
electric power generating stations, industrial institutional plants,
geothermal heating systems, and heating and cooling systems.
ASME B31.3 - Process Piping - 2014 Edition Coming
This Code contains requirements for piping typically found in petroleum
refineries; chemical, pharmaceutical, textile, paper, semiconductor, &
cryogenic plants, & related processing plants terminals.