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ASME B31.8 Document Information:
Title
Gas Transmission and Distribution Piping Systems
ASME International
Publication Date:
Nov 30, 2007
Scope:
This Code covers the design, fabrication, installation,
inspection, and testing of pipeline facilities used for the
transportation of gas. This Code also covers safety aspects of the
operation and maintenance of those facilities.
This Code does not apply to
(a) design and manufacture of pressure vessels covered by the
BPV Code1
(b) piping with metal temperatures above 450°F or below -20°F
(For low temperature within the range covered by this Code, see
para. 812.)
(c) piping beyond the outlet of the customer's meter set
assembly (Refer to ANSI Z223.1 and NFPA 54.)
(d) piping in oil refineries or natural gasoline extraction
plants, gas treating plant piping other than the main gas stream
piping in dehydration, and all other processing plants installed as
part of a gas transmission system, gas manufacturing plants,
industrial plants, or mines (See other applicable sections of the
ASME Code for Pressure Piping, B31.)
(e) vent piping to operate at substantially atmospheric
pressures for waste gases of any kind
(f) wellhead assemblies, including control valves, flow lines
between wellhead and trap or separator, offshore platform
production facility piping, or casing and tubing in gas or oil
wells. (For offshore platform production facility piping, see API
RP 14E.)
(g) the design and manufacture of proprietary items of
equipment, apparatus, or instruments
(h) the design and manufacture of heat exchangers (Refer to
appropriate TEMA2 Standard.)
(i) liquid petroleum transportation piping systems (Refer to
ASME B31.4.)
(j) liquid slurry transportation piping systems (Refer to ASME
B31.11.)
(k) carbon dioxide transportation piping systems
(l) liquefied natural gas piping systems (Refer to NFPA 59A and
ASME B31.3.)
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