Hawaii Administrative Rules
Title 6 - DEPARTMENT OF BUDGET AND FINANCE
Division - PUBLIC UTILITIES COMMISSION
Chapter 77 - TRANSPORTATION OF NATURAL AND OTHER GAS BY PIPELINE; MINIMUM SAFETY STANDARDS
Subchapter 5 - MINIMUM SAFETY STANDARDS - PIPE DESIGN
Section 6-77-39 - Design of copper pipe
Universal Citation: HI Admin Rules 6-77-39
Current through August, 2024
(a) Copper pipe used in mains must have a minimum wall thickness of 0.065 inch 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:
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| Wall thickness (inch) | |||
| Standard size (inch) | | |Nominal O.D. (inch) | | Nominal | | Tolerance | |
| 2 | | .625 | | .040 | | .0035 |
| 5/8 | | .750 | | .042 | | .0035 |
| 3/4 | | .875 | | .045 | | .004 |
| 1 | | 1.125 | | .050 | | .004 |
| 1-1/4 | | 1.375 | | .055 | | .0045 |
| 1-1/2 | | 1.625 | | .060 | | .0045 |
| I | I | I | |
(c) Copper pipe used in mains and service lines may not be used at pressures in excess of 100 p.s.i.g.
(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 per 100 standard cubic feet of gas.
Disclaimer: These regulations may not be the most recent version. Hawaii may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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