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0 <br /> Secondary Containment System Installation <br /> C. Alternate Termination At Y'. gWT 5*ODLES <br /> Termination of the secondary containment piping system <br /> at the storage tank is accomplished using a termination fitting For secondary containment piping installations requiring <br /> with 3/4"female NPT threaded outlet.See figure below. The intermediate access stations for visual or electronic leak de- <br /> 3/4"threaded outlet allows easy access for pressure testing tection,several sizes of reducing saddles are available. See <br /> of the secondary containment piping system,and may also Bulletin No.82101 for saddle sizes and descriptions. <br /> be used as an access for a leak detection probe. <br /> Flexible <br /> Connector Bell x Male Threaded Adapter <br /> NOTE: if connecting components extend to <br /> the surface where the assembly can be <br /> ° subjected to bending forces,flexible <br /> Tank ° 314"Nv-r Tap connectors(such as flexible hoses)must be <br /> used to eliminate bending stress. <br /> O ° <br /> Containment saddles must be installed prior to bonding <br /> and testing the product piping.Use adhesive when bond- <br /> Table 1 .Termination Fitting Connections ing saddles to the pipe. <br /> Termination Large End Fits: Small End Fits: Procedure for installing secondary containment saddles: <br /> Fitting Size (Pipe) (male threaded Part 1. Locate saddle on pipe and mark around saddle base. <br /> (in./mm) (in./mm) adapter) Number 2. Use a file or rough sandpaper(40 grit or less)to re- <br /> move all surface gloss from the pipe O.D.where the <br /> 3 x 2 3 2"scarfed adapter(1) 012030-236-3 witap saddle is to be bonded. Use circular or random pat- <br /> 75 x 50 75 50 mm adapter(1) 012030-235-3 w/o tap tem during sanding to eliminate grooves on the pipe <br /> surface. <br /> 4 x 3 4 3"S.C.adapter(1) 012040-236-3 w/tap 3. After sanding,locate saddle on pipe and mark hole <br /> 100 x 75 100 75 mm adapter(1) 012040-235-3 w/o tap to be cut in pipe. Using a pilot drill and a fine-tooth <br /> circular hole saw,cut a hole of the same size as the <br /> 6 x 4 6 4"S.C.adapter 012060-234-7 w/tap outlet of the saddle. Do not force the cutter,or it will <br /> 150 x 100 150 100 mm adapter 012060-235-7 w/o tap unduly fray the edges of the hole. <br /> 4. All bonding surfaces must be free of contamination. <br /> (1) A special coupling with controlled O.D.may be obtained for use with the termination 5. Apply a heavy coat of adhesive to the O.D. of the <br /> fittings and threaded fittings. pipe, I.D.of the saddle, and the edges of the pipe <br /> wall exposed by the hole. <br /> 6. Place the saddle over the hole and clamp with two hose <br /> WBA-RY-CO " clamps. Using a large screw driver, hand tighten the <br /> clamps alternately until secure and adhesive squeezes out <br /> In-line secondary containment pipe size reductions are all the way around the saddle. This will ensure that the <br /> made using a concentric reducer. Reductions can be made pipe Q.D.conforms to the I.D.of the saddle. The clamps <br /> from 6"to 4"(150 mm to 100 mm)and 4"to 3"(100 mm to 75 may be left on or removed after the bond has cured and <br /> mm). Both ends of the concentric reducer are bonded to a after the flexible connector is installed in the outlet. <br /> scarfed and of pipe. <br /> CAUTION: Product pipe may be under pressure if <br /> the testing has been completed. Do not attempt to in- <br /> stall a saddle on the containment pipe if the product <br /> piping system has been installed and tested. <br /> RED THREAD 11A Pipe & Fittings 22 <br />