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e• <br /> Dry fitting secondary Cutting 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'h inches from the square-cut end of <br /> the pipe.Surface gloss is most <br /> Protective end cap j conveniently removed before <br /> (from tactors) the containment pipe has been <br /> placed over the primary. <br /> Cut pipe here if tapered <br /> (discard caper) Place containment fittings <br /> Fig.7-1.Some containment pipe may under the dry-fit primary <br /> be received with tapered ends.Cut off i fittings when measuring the <br /> the tapers and remove the surface gloss <br /> for 1 to 11/2 inches length of containment pipe to <br /> from the end of the pipe. be cut.Cut the containment <br /> pipe to allow 1 to 1'h inches for <br /> Remove surface gloss insertion into each fitting as <br /> Faccorytaper shown in Fig.7-2. <br /> i <br /> Remove gloss from <br /> 1 1 exterior of secondary <br /> ° <br /> In ° a ° <br /> — <br /> Fig.7-2.Always include a coupling in p- -4-1-1112 1-1112 �-- <br /> the secondary wherever a primary <br /> coupling is located. <br /> Fig.7-3.In runs less than the standard L<one standard <br /> 20-foot primary pipe length,include a "" primary pipe 1engt' <br /> containment coupling to provide (run under 20 ft) V 1 t <br /> access to the primary during bonding, ° <br /> testing and inspection. In short primary <br /> runs where lack of space prevents the use ° E L — — <br /> :: <br /> of a full-length containment coupling,use <br /> a half-coupling instead. <br /> i <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 51h inches long. <br /> D I 0 <br /> 0 0 <br /> Fig.7-4. Cut full-length couplings so — ----- '— ---' <br /> that ad bolt holes on half-couplings are o 0 0 _ <br /> equidistant from the ends. 0 0 R 0 0 <br /> Cut to make 2-inch <br /> half-couplings <br /> Cut to make 3.4 and 6-inch <br /> half-couplings <br /> 6 <br />