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•'0 <br />A 0 <br />In-line secondary containment pipe <br />size reductions are made using a tele- <br />scoping concentric reducer. Reduc- <br />tions can be made from 5" to 4" (125 <br />to 100mm) and 4" to 3" 000 to 75 <br />mm). Both ends of the telescoping <br />g!!! <br />SS I ` I <br />concentric reducer are bonded to a <br />scarfed or sanded end of pipe. <br />FIBERC ASS <br />SECONDARY DD <br />For secondary containment piping <br />installations requiring intermediate <br />access stations for visual or electronic <br />leak detection, several sizes of reduc- <br />ing saddles are available. See Bulle- <br />tin No. B2150 for saddle sizes and <br />descriptions. (See Figure 2.6.1.) <br />Containment saddles must be in- <br />stalled prior to bonding and testing <br />of the product piping. <br />Use DS -7000 adhesive or DS -8000 <br />series adhesive when bonding saddles <br />to the pipe. Threaded connections <br />must be made with a flexible con- <br />nector such as flexible hose to elimi- <br />nate bending stress. Tighten threads <br />as if they were brass or other soft <br />material. <br />32 <br />11 <br />El <br />