PART 2
PRODUCTS
2.1
PIPE AND FITTINGS
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NOTE: When acceptable to the serving gas supplier
aluminum, thermoplastic or fiberglass pipe; copper,
aluminum alloy, or steel tubing may be used with
gases not corrosive to such materials. Before
selecting aluminum, copper, thermoplastic or
fiberglass materials, the gas supplier should be
contacted for a gas analysis to determine the types
of chemicals which will be in the gas supply.
Suitable materials will be selected based on the gas
analysis. In general, odorized gas is not suitable
for aluminum or copper bearing materials.
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2.1.1
Steel Pipe, Joints, and Fittings
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NOTE: Other materials, such as threaded ductile
iron, copper or brass pipe in iron pipe sizes, may
be used with gases noncorrosive to such materials.
Designer may specify other approved materials, but
shall list proper reference publications in this
paragraph and reference paragraph. Designer also
may delete materials or equipment listed if not
desirable or applicable.
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Steel pipe shall conform to ASME B36.10M. Malleable-iron threaded fittings
shall conform to ASME B16.3. Steel pipe flanges and flanged fittings
including bolts, nuts, and bolt pattern shall be in accordance with ASME
B16.5. Wrought steel buttwelding fittings shall conform to ASME B16.9.
Socket welding and threaded forged steel fittings shall conform to ASME
B16.11.
2.1.2
Aluminum Alloy Pipe and Tubing, Joints, and Fittings
Aluminum alloy pipe shall conform to ASTM B 241/B 241M, except alloy 5456
shall not be used, and the ends of each length of pipe shall be marked
indicating it conforms to NFPA 54. Pipe joints shall be threaded, flanged,
brazed or welded. Aluminum alloy tubing shall conform to ASTM B 210M ASTM
B 210, Type A or B, or ASTM B 241/B 241M, Type A or equivalent. Tubing
joints shall be made up with gas tubing fittings recommended by the tubing
manufacturer.
2.1.3
Copper Tubing, Joints and Fittings
Copper tubing shall conform to ASTM B 88M ASTM B 88, Type K or L, or ASTM B
280. Tubing joints shall be made up with tubing fittings recommended by
the tubing manufacturer.
2.1.4
Steel Tubing, Joints and Fittings
Steel tubing shall conform to ASTM A 539. Tubing joints shall be made up
with gas tubing fittings recommended by the tubing manufacturer.
SECTION 15190A
Page 8
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