Sub-Head
NIBCO INC. WORLD HEADQUARTERS • 1516 MIDDLEBURY ST. • ELKHART, IN 46516-4740 • USA • PH: 1.800.234.0227
TECH SERVICES PH: 1.888.446.4226 • FAX: 1.888.336.4226 • INTERNATIONAL OFFICE PH: +1.574.295.3327 • FAX: +1.574.295.3455
www.nibco.com
13
www.nibco.com
AHEAD OF THE FLOW
®
Allow for Expansion and Contraction
Since NIBCO
®
PEX pipe will expand and contract during temperature changes, please allow slack when stringing the pipe through the
building. NIBCO
®
PEX pipe expands/contracts at a rate of 1.1” per 100 feet of pipe for each 10°F change in temperature. For example,
a line at 70°F room temperature will expand 5.5” over a 100’ length when 120°F water is run though it. (120° - 70° = 50°; 50°/10°= 5°;
5 X 1.1” = 5.5”) Conversely, the pipe will shrink 5.5” when it cools down. We recommend that offsets and expansion loops be used as
ways to compensate for expansion and contraction in runs of pipe.
Examples of Expansion/Contraction Loop Methods
Make sure that the loops have adequate room to expand and contract. Ensure that the loop is not touching any floor joists or wall
studs.
Remember to Leave Extra Tubing at Both Ends of the Run
Connections to fittings, fixtures and manifolds are made easier by leaving some extra tubing at both ends of the run.
Keep Hot and Cold Lines Separate
NIBCO
®
PEX pipe keeps hot-water hot and cold-water cold due to its superior insulation properties. However, please use caution when
bundling pipe. Keep hot and cold lines in separate bundles to avoid heat transfer problems.
Use Caution When Soldering
When installing a sweat adapter fitting, always solder the fitting first before making the connection to NIBCO
®
PEX pipe. In all cases,
keep soldering tools and open flames away from NIBCO
®
PEX pipe.
Concrete Installation Guidelines
NIBCO
®
PEX can be submerged in concrete but please follow these guidelines.
• Protect the pipe with non-metallic sleeves when entering or exiting the concrete slab. A larger
diameter piece of NIBCO
®
PEX works well in this application.
• Do not allow any joints within the slab. Use a continuous length of NIBCO
®
PEX pipe within the slab
and be sure to check for leaks before pouring any concrete.
Keep NIBCO
®
PEX Away from High Heat Sources
NIBCO
®
PEX pipe should be routed around and away from sources for heat such as water heaters / boilers, electric motors, light fixtures
and gas appliance vents. Maintain a minimum distance of 12” vertically and 6” horizontally from sources of high heat.
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