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Code of Federal Regulations Title 49. Transportation § 49.192.125 Design of copper pipe

Current as of January 02, 2025 | Updated by Findlaw Staff

(a) Copper pipe used in mains must have a minimum wall thickness of 0.065 inches (1.65 millimeters) and must be hard drawn.

(b) Copper pipe used in service lines must have wall thickness not less than that indicated in the following table:

Standard

Nominal

Wall thickness inch

size inch

O.D. inch

(millimeter)

(millimeter)

(millimeter)

Nominal

Tolerance

1/2 (13)

.625 (16)

.040 (1.06)

.0035 (.0889)

5/8 (16)

.750 (19)

.042 (1.07)

.0035 (.0889)

3/4 (19)

.875 (22)

.045 (1.14)

.004 (.102)

1 (25)

1.125 (29)

.050 (1.27)

.004 (.102)

1 1/4 (32)

1.375 (35)

.055 (1.40)

.0045 (.1143)

1 1/2 (38)

1.625 (41)

.060 (1.52)

.0045 (.1143)

(c) Copper pipe used in mains and service lines may not be used at pressures in excess of 100 p.s.i. (689 kPa) gage.

(d) Copper pipe that does not have an internal corrosion resistant lining may not be used to carry gas that has an average hydrogen sulfide content of more than 0.3 grains/100 ft.3 (6.9/m3) under standard conditions. Standard conditions refers to 60° F and 14.7 psia (15.6° C and one atmosphere) of gas.

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Cite this article: FindLaw.com - Code of Federal Regulations Title 49. Transportation § 49.192.125 Design of copper pipe - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-49-transportation/cfr-sect-49-192-125/

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