Nibco Plastics Catalog - Paramount Supply
Nibco Plastics Catalog - Paramount Supply
Nibco Plastics Catalog - Paramount Supply
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AHEAD OF THE FLOW ®<br />
Adapting Plastic Piping to Other Piping Materials<br />
THREADED CONNECTIONS - ABS, CPVC, & PVC pipe less than<br />
Schedule 80 wall should not be threaded. Most codes require<br />
transition from one material to another by use of appropriate<br />
adapter fittings. NIBCO offers a complete line of adapters for<br />
ABS, CPVC, & PVC.<br />
Common thread sealants should not be used on threaded ABS,<br />
CPVC, or PVC joints. When necessary, PTFE pipe tape can be<br />
used.<br />
CONNECTING CPVC TO METAL PIPE OR FITTINGS - The recommended<br />
methods of joining CPVC tube to metal threaded valves<br />
or piping are to use one of the special transition unions or a<br />
CPVC adapter with a threaded-brass insert. Threaded plasticto-metal<br />
connections are not recommended. The difference in<br />
the rates of expansion of CPVC and metal may cause leakage<br />
in threaded joints.<br />
CONNECTING CPVC TO HOT WATER HEATER<br />
An approved temperature/pressure relief valve should be<br />
assembled to the hot water heater so that the probe or sensing<br />
element enters the water at the top of the heater. Using metal<br />
nipples, extend the metal piping at least 12 inches from the<br />
water heater on both the cold water supply and the hot water<br />
discharge lines. Special transition unions or CPVC adapters<br />
with a threaded-brass insert must be used to join the CPVC<br />
tube to the nipples. Do not use CPVC pipe and fittings with<br />
commercial type non-storage water heaters.<br />
NIBCO INC. WORLD HEADQUARTERS 1516 MIDDLEBURY ST. ELKHART, IN 46516-4740 USA PH: 1.800.234.0227<br />
TECH SERVICES PH: 1.888.446.4226 FAX: 1.888.336.4226 INTERNATIONAL OFFICE PH: +1.574.295.3327 FAX: +1.574.295.3455<br />
www.nibco.com<br />
www.nibco.com<br />
Revised 9/10/2009<br />
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