Page 69 - CPVC Fire Sprinkler Products Installation Instructions & Technical Handbook
P. 69

In Hot Weather
CPVC solvent cements contain volatile solvents. Higher temperatures and/ or wind accelerate evaporation. Pipe stored in direct sunlight may have surface temperatures of 20°F to 30°F (-7°C to -1°C) above air temperatures. Solvents attack these hot surfaces deeper; therefore, it is very important to avoid puddling the cement inside the fitting socket. Always ensure that the excess cement is wiped from the outside of the joint.
Follow the standard installation instructions and take special note of the tips and cautions below:
1. See Tables G1 & G2 for the appropriate temperature related expansion and contraction information.
2. Store solvent/cements and primers in a cool or shaded area prior to use.
3. If possible, store pipe and fittings, or at least the ends to be solvent welded, in a shady area before cementing.
4. Make sure both surfaces to be joined are still wet with cement when putting them together. With larger size pipe more people may be required to complete the application successfully.
5. Carefully read and follow all instructions before installation.
Male and female brass insert thread adapters, grooved pipe adapters, or 4 flanges shall be used when connecting a TYCO system to other piping materials. Special brass insert threaded fittings or the Rapid Seal Adapter (RSA) series are used for connection to sprinklers.
When TYCO CPVC Pipe and Fittings are used in combination systems with steel pipe, compliance with 2013 NFPA 13 sections 6.3.7 and 6.4.3, and 2013 NFPA 13R sections 5.2.3 and is required.
The instructions for transitioning to other materials are specifically for TYCO CPVC Fittings. Should other Listed BLAZEMASTER CPVC Fittings be used in conjunction with TYCO CPVC products, consult the fitting manufacturer’s installation and design manuals.
Care must be taken when transition is made to dissimilar materials. Brass inserts used in male and female threaded and grooved CPVC adapters may create galvanic reaction with steel and iron drop nipples, pipe, and cast fittings in certain water conditions. If you are unsure of the potential for galvanic reaction to occur, verify the water condition and conductivity of the water being used in the sprinkler system piping prior to installation. Brass threaded nipples are recommended when using brass inserted threaded TYCO CPVC Fittings to reduce the potential of galvanic reaction caused by dissimilar metals.
Care must be taken when transition is made from metallic pipe, fittings and flanges. When transitioning from metallic pipe system to a TYCO CPVC piping system via grooved adapter, male or female thread adapter or flanges, caution must be taken to ensure that all hydrocarbons and/or cutting oils are thoroughly removed from both inside and outside of the metallic pipe, fittings and flanges prior to assembly with TYCO CPVC Pipe and Fittings. (See Notice located on Page 55, Chemical Compatibility section.)

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