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7 Dry fitting secondary Gutting containment piping <br /> containment systems Ameron containment piping employs a straight joint.Use of tapered pipe ends in <br /> straight containment fittings will result in a gap in the joint.When employing pipe that <br /> has been delivered with a factory taper as containment piping,remove the taper as <br /> shown in Fig.7-1. <br /> After cutting containment pipe to length,use a flapper sander,coarse sandpaper or <br /> emery cloth to remove the surface gloss for 1 to 1'!2 inches from the square-cut end of <br /> ---- — the pipe.Surface gross is most <br /> Protective end cap conveniently removed before <br /> (from factory) the containment pipe has been <br /> p <br /> Cut pipe here if tapered laced over the primary. <br /> (discard taper) Place containment fittings <br /> Fig. 7-1.Some containment pipe may , under the dry-fit primary <br /> be received with tapered ends.Cut off fittings when measuring the <br /> the tapers and remove the surface gloss <br /> for 1 to 1112 inches ! ; length of containment pipe to <br /> from the end of the pipe. be cut.Cut the containment <br /> pipe to allow 1 to 11h inches for <br /> —Remove surface doss insertion into each fitting as <br /> +Factory taper shown in Fig.7-2. <br /> Remove gloss from <br /> F/2 <br /> exterior of secondary <br /> - - -- -- - - - - -Fig. 7-2.Always include a coupling in 1-102the secondary wherever primary <br /> coupling is located. <br /> Fig. 7-3.1n runs fess than the standard L<one standard 9 <br /> 20-foot primary pipe length,include a primary pipe length <br /> containment coupling to provide (run under 20 ft) <br /> access to the primary during bonding, <br /> testing and inspection. In shortprimary — — _ - - - - _ _ - <br /> runs where lack of space prevents the use <br /> of a full-length containment coupling,use - —- - - - <br /> a half-coupling instead. <br /> Cutting containment couplings <br /> The center holes on 2-inch couplings have been located near the middle of the <br /> coupling.Cut exactly between these two holes.The resulting half-couplings will be <br /> 7 inches long.Two cuts are necessary when making 3 and 4-inch half-couplings. <br /> The resulting half-couplings are 5'/z inches long. <br /> D Q <br /> (5-5 0 <br /> 0 a 0 0 <br /> Fig.7-4. Cut full-length couplings so — -- - --- – — -— <br /> that all bolt holes on half-couplings are o 0 0 0 <br /> equidistant from the ends. <br /> o a o 0 <br /> Cut to make 2-inch <br /> half-couplings <br /> Gut to make 3,4 and 6-inch <br /> half-couplings <br /> 6 <br />