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6 Piping system layout (cont'd.) Fig. 6-6. Cross-over using Dualoy 3000/LCX fitting where,D indicates distance between fittings and D+G equals overall length of LCX pipe required to affect the cross-over allowing adequate insertion depth into fitting and room to move closure pieces to allow inspection of the primary. Flexible sump penetration fitting installation (cont'd) • The flexible penetration fitting has two sections, an outer ring and an inner boot. Unscrew the ring from the penetration fitting and apply a small bead of Bostik 920 to the inner surface of the ring flange. • Apply a bead of Bostik 920 around the hole on the inside surface of the sump wall. • Place the ring into the sump wall from the outside with the threads inside the sump. • Press the gasket into the groove on the inner part of the penetration fitting. • From inside the sump, screw the penetration fitting onto the threads and tighten with adjustable pliers. Cross -overs Cross-over fittings assemblies can be fabricated in the field or can be purchased from the factory (Factory made jump -over assemblies provide minimum height change for this type of fitting). Make cross -overs by using 45° elbows and tees as shown in figure 6-6. In this way the minimum vertical clearance can be achieved between the lines. The minimum length of pipe nipple at cross -overs and very short runs (D + G) is shown in the table below.The table also shows the minimum distance between fittings that will result from these nipples being used (D) and the approximate insertion depth of the nipple into both fittings (G). Nipple lengths can be made any length longer than this minimum. This length is the minimum needed to allow movement of the closure fittings and inspection of the primary system during testing. Nominal Minimum space Insertion Minimum overall pipe diameter between primary fittings (D) depth (G) length (D+G) in. (mm) in.L1mm) (in.) (mm) (in.) (mm) 2 50 7.00 178 3.00 76 10.00 254 3 80 9.00 228 5.00 127 14.00 355 4 100 10.50 267 6.25 159 16.75 425 Shorter jump -overs are available from Ameron as pre -fabricated assemblies. Factoryvide minimum jump -over umchange in height. Center- to -center laying lengths and net center -line height changes are shown in the provide minimum change in height. table (right) (ref. fig. 6.6). Nominal Laying length (A) Height (8) pipe diameter prefabricated field fabricated prefabricated field fabricated (in.) (mm) (in.) (mm) (in.) (mm) (in.) (mm) (in.) (mm) 2 50 7.62 195 14.00 356 5.40 135 9.90 251 3 80 8.55 215 18.13 460 6.05 153 12.82 325 7 Bonding primary Joint preparation systems All tapered systems must be clean, dry and warm for a proper bond. Clean: Pipe is shipped from the factory with end protectors. Avoid contamination from r _, fingerprints, petroleum fumes, mist and condensation as these are adverse to good 1 The hardener contained in the I bonding. If a taper becomes dirty, sand it with emery cloth. Never touch the bonding 1 adhesive kit may burn the skin. I surface with bare hands after cleaning or sanding as this will leave an oily deposit. 1 Avoid inhaling the vapors. Read and observe the label I Dry: Adhesive will not bond to a wet surface. If the taper is wet or moist, dry it with a blow dryer or heat gun. Do not overheat or burn the pipe. 1 precautions. I L _ _ _ _ _ _ _ _ _ _ _ J Warm: Below 50°F (10°C), warm the taper with a blow dryer or heat gun. For best results, adhesive should be at least 50°F when used. Do not store kits in areas above (vote I: Itis easiest to clean the O -rings 100°F (38°C), below 32°F (0°C), or in the direct sunlight during warm weather. In cold and seal areas of containment fittings prior to bonding primary fittings. Itis also weather warm the resin to at least 50°F but not above 100°F to permit good mixing and recommended that these areas be easier application. reinspected prior to closure of secondary Mixing Ameron adhesive to insure leak -tight connections. Note 2:Priorto bonding the primary Combine all of both components in the mixing container in the supplied proportions. system, it is recommended that all the • Never try to split a kit. piping be "dry -fitted" and the containment closures screwed on hand • Mix thoroughly with the mixing stick until all streaks are gone and the adhesive tight to ensure proper alignment. has a smooth, uniform color. Mixed adhesive color is dark red. • Do not allow moisture to get into the can. Note: If the material in either container cannot be mixed, the kit should not be used. O Note: Grit in adhesive may be sitting on top of resin component. It will mix in readily.