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0 0 <br /> Secondary Containment System Installation <br /> • Single Wall Sump Entry/Termination Fitting SECONDARY CONTAINMENT REDUCERS <br /> Refer to Bulletin No. 82107 for installation information. In-line secondary containment pipe size reductions are <br /> made using a concentric reducer. Reductions can be made <br /> E „,�,p„Fl• �„ gym° from 6" to 4" (150 mm to 100 mm) and 4" to 3" (100 mm to <br /> A;19. Z; f 75 mm). Both ends of the concentric reducer are bonded to <br /> scarfed end of pipe. <br /> SECONDARY CONTAINMENT SADDLES <br /> For secondary containment piping installations requiring in- <br /> A termediate access stations for visual or electronic leak de- <br /> tection,several sizes of reducing saddles are available. See <br /> Bulletin No. 2101 for saddle sizes and descriptions. <br /> Alternate Termination <br /> Termination of the secondary containment piping system Q Q <br /> at the storage tank is accomplished using a termination fitting <br /> with 3/4"female NPT threaded outlet. See figure below. The <br /> 3/4"threaded outlet allows easy access for pressure testing <br /> of the secondary containment piping system and may also Note: If connecting components extend to <br /> the surface where the assembly can be <br /> be used as an access for a leak detection prove, subjected to bending forces,flexible <br /> Flexible connectors(such as flexible hoses)must be <br /> used to eliminate bending stress. <br /> Connector Bell x Male Threaded Adapter <br /> Containment saddles must be installed prior to <br /> bonding and testing the product piping. Use adhesive when <br /> bonding saddles to the pipe. <br /> Procedure for installing secondary containment saddles: <br /> Locate saddle on pipe and mark around saddle base. <br /> ® • Use a file or rough sandpaper(40 grit or less)to remove <br /> O 3/4"NPT Tap all surface gloss from the pipe O.D. where the saddle is <br /> Tank to be bonded. Use circular or random pattern during <br /> sanding to eliminate grooves on the pipe surface. <br /> o ® o After sanding, locate saddle on pipe and mark hole to <br /> be cut in pipe. Using pilot drill and a fine-tooth circular <br /> hole saw,cut a hole of the same size as the outlet of the <br /> TABLE 13. Termination Fitting Connections saddle. Do not force the cutter or it will fray the edges of <br /> Small End Fitsthe hole. <br /> Termination Large End Fits (Male threaded • All bonding surfaces must be free of contamination. <br /> Part Fitting Size (Pipe) adapter or Apply a heavy coat of adhesive to the O.D. of the pipe, <br /> Number (In./mm) (In./mm) coupling) I.D.of the saddle,and the edges of the pipe wall exposed <br /> 012030-236-3 3 x 2 3 2"scarfed by the hole. <br /> with tap adapter(') Place the saddle over the hole and clamp with two <br /> 012030-235-3 75 x 50 75 50 mm hose clamps. Using a large screw driver, hand tighten <br /> without tap adapter the clamps alternately until secure and adhesive <br /> 012040-236-3 4 x 3 4 3"scarred squeezes out all the way around the saddle. This will <br /> with tap adapter(') ensure the pipe O.D. conforms to the I.D. of the saddle. <br /> 012040-235-3 100 x 75 100 3"scarfed The clamps may be left on or removed after the bond <br /> without tap adapte0l) has cured and after the flexible connector is installed in <br /> 012060-234-7 6 x 4 6 4"scarfed the outlet. <br /> with tap adapter') CAUTION: Product pipe may be under pressure if <br /> 012060-235-7 100 mm <br /> without tap 150 x 100 150 adapter the testing has been completed. Do not attempt to <br /> n)A special coupling with controlled Oinstall a saddle on the containment pipe if the product <br /> termination <br /> may be obtained for use with the <br /> termination fittings and threaded fittings. piping system has been installed and tested. <br /> 20 <br />