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19 <br />Prepare coupling fitting threads and attach Co -Flex termination fitting (male or female) to <br />connector/s or Direct Connection fitting and clamps. Tighten to specs. <br />Position pipe within trench for proper spacing. Lay out piping runs while maintaining <br />separation between pipe lengths and at crossover points. <br />TEST & CROSSOVER BOOT/TUBING INSTALLATION: <br />The Test/Crossover Assembly Boots are attached to the Co -Flex Piping ends to provide a <br />sealed access and test point for the interstitial/secondary space within the pipe. The <br />Test/Crossover Boots utilizes two (2) stainless steel band clamps which when tightened <br />around the primary or inner pipe jacket and the Co -Flex containment outer jacket isolate <br />the interstitial space. An air valve stem is installed in the boot for an outlet opening for <br />connecting the crossover and/or test tubes. These tubes are used for the testing of and the <br />interconnection of the interstitial space from pipe section to pipe section. Crossover tube <br />assemblies are used for junctions, pipe to pipe in line connections, piping run termination <br />points, tank connection points and any piping manifold connection points. <br />Test/Crossover Boots and tubes are fitted and tightened in place after the piping <br />terminations and their connections have been made. After installation and tightening of <br />all test/crossover boots and tubes, pressure testing may be done. Crossover tubes may be <br />removed to isolate each piping run if required. <br />PRESSURE TESTING PRIMARY AND SECONDARY <br />Typical primary piping testing is done at 50 psi fora m inimum of one (1) hour. Typical <br />secondary or interstitial space testing is done at 5 PSI for a minimum of one (1) hour. <br />These tests may be performed after installation is complete, but before backfill. Local <br />regulations and requirements may vary. Note: Care needs to be taken when pressurizing <br />the secondary, add pressure slowly and do not exceed 10 psi during pressurization <br />process. We recommend a small hand, bicycle type, pump to pressurize the secondary. <br />Always use safe procedures when pressure testing piping systems. Western Fiberglass, <br />Inc. assumes no liability or responsibility for testing procedures. <br />