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ASME B31.3 Document Information:
Title
Process Piping
ASME International
Publication Date:
Dec 31, 2008
Scope:
Rules for the Process
Piping Code Section B31.31 have been developed
considering piping typically found in petroleum refineries;
chemical, pharmaceutical, textile, paper, semiconductor, and
cryogenic plants; and related processing plants and
terminals.
300.1.1 Content and
Coverage
(a) This Code
prescribes requirements for materials and components, design,
fabrication, assembly, erection, examination, inspection, and
testing of piping.
(b) This Code
applies to piping for all fluids, including
(1) raw,
intermediate, and finished chemicals
(2) petroleum
products
(3) gas, steam,
air, and water
(4) fluidized
solids
(5)
refrigerants
(6) cryogenic
fluids
(c) See Fig.
300.1.1 for a diagram illustrating the application of B31.3 piping
at equipment. The joint connecting piping to equipment is within
the scope of B31.3.
300.1.2 Packaged
Equipment Piping.
Also included within the
scope of this Code is piping which interconnects pieces or stages
within a packaged equipment assembly.
300.1.3
Exclusions.
This Code excludes the
following:
(a) piping systems
designed for internal gage pressures at or above zero but less than
105 kPa (15 psi), provided the fluid handled is nonflammable,
nontoxic, and not damaging to human tissues as defined in 300.2,
and its design temperature is from -29°C (-20°F) through 186°C
(366°F)
(b) power boilers
in accordance with BPV Code2 Section I and boiler
external piping which is required to conform to B31.1
(c) tubes, tube
headers, crossovers, and manifolds of fired heaters, which are
internal to the heater enclosure
(d) pressure
vessels, heat exchangers, pumps, compressors, and other fluid
handling or processing equipment, including internal piping and
connections for external piping
1 B31 references here and elsewhere in this Code are
to the ASME B31 Code for Pressure Piping and its various Sections,
which are identified and briefly described in the Introduction.
2 BPV Code references here and elsewhere in this Code
are to the ASME Boiler and Pressure Vessel Code and its various
Sections as follows:
Section I, Power Boilers
Section II, Materials, Part D
Section V, Nondestructive Examination
Section VIII, Pressure Vessels, Divisions 1 and 2
Section IX, Welding and Brazing Qualifications
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