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PEXALGAS™ INSTALLATION INSTRUCTIONS
AT TENTION!
The installation of Jones Stephens PEXALGAS™ piping must be performed by a trained installer as required by the
state and local administrative authority administering the provisions of the code where the gas piping is installed.
All systems using Jones Stephens piping shall be designed and installed according to the requirements of this guide.
Only Jones Stephens piping components may be used in the system. Components from other PEX-AL-PEX systems are
not interchangeable. Only components supplied or specified by Jones Stephens shall be used.
Installation shall be in accordance with local codes, or in their absence, in accordance with the National Fuel Gas Code
ANSI Z223.1 in the USA, and CAN/CGA - B149.1 & B149.2 in Canada. In cases where the requirements of this guide
conflict with the local code, the local code must take precedence, unless the local authority having jurisdiction
approves a variance, or change.
Inspection, testing, and purging shall be performed according to the procedures in Part 4 of the National Fuel Gas
Code, ANSI Z223.1, and CAN/CGA - B149 installation Codes or in accordance with local codes.
This system and related components shall be used only in gas piping systems where the operating gas pressure does
not exceed 72 psi (5 bar).
Piping may be buried underground or in concrete. Underground pipes must be laid at a distance of at least 3 feet from
any waste pipes and they must be positioned above the same. The piping does not require any protection in
particular when laid underground, as long as an appropriate bedding is prepared for the pipes and the same are
covered with a layer of at least 8 inches of fine sand or strained clay. If the fittings are installed in particularly moist
conditions, embedded in soil, or subject to particularly aggressive compounds (such as concrete or cement mortars)
they need to be protected. In such cases, the installer shall cover the fittings with self-joining bituminous tape.
Underground pipes that enter the building must be fitted with a sealed sleeve at the end, in order to prevent
water, gas and animals from entering the building. Jones Stephens does not recommend burial of brass fittings or
components.
The PEX-AL-PEX pipe is typically routed:
• Beneath, through and alongside floor joists
• Inside interior wall cavities
• On top of ceiling joists in attic space
Carefully unwind and route the piping from the reel to the required location, making certain not to kink, tangle or
apply excessive force.
Piping end must be temporarily capped closed prior to installation to prevent contamination from foreign material.
When installing Jones Stephens gas piping avoid sharp bends, stretching, kinking, twisting, or contacting sharp
objects. The tubing shall be replaced if damage occurs.
3249 Moody Parkway | Moody, AL 35004 | 800.355.6637 | Fax 800.462.6991| www.jonesstephens.com
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