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R F V FE VV E L/ <br />ji%ii I '! i_Uii <br />ENVIRONMENTAL HEALTH <br />DEPARTMENT <br />Reduction N <br />3" to 2" 3 3'4 <br />4" to 3" 4 1/4 <br />4" to 2" 4 1,'4 <br />Bonding Containment Piping <br />Joint preparation: <br />Inspect all sealing surfaces to ensure they are free of any for- <br />eign material such as dirt, sand, or adhesive. Inspect all bond- <br />ing surfaces to ensure there are no cuts, scratches, or nicks <br />which could prevent the joint from sealing properly. <br />Adhesive for containment piping: <br />The same PSX•20 adhesive used for primary bonding is used <br />for bonding containment fittings. PSX•34 adhesive can be <br />used in warmer weather, also. <br />Bonding containment piping: <br />• Bond containment only after primary lines have been <br />tested, inspected and approved. <br />• All bonding surfaces must be free from water, soap, oil, <br />grease, dirt and other contaminates and should be sand- <br />ed before applying adhesive. <br />• Apply a uniform coating of adhesive to the flanges of <br />each of the containment fitting halves and to the curved <br />surface of the fitting where the pipe fits. Also apply ad- <br />hesive to the outside of the containment pipe where it is <br />scarfed and the fitting will be in contact. Keep adhesive <br />off the last half inch of the pipe jacket when applying it <br />to the pipe. <br />• Place the containment half shells around the primary fit- <br />ting. Use the half with the pre -inserted nuts as the bottom <br />half to allow easier access to the bolt heads when tighten- <br />ing. Since the primary assembly of the Dualoy 3000/LCX <br />is rigid relative to the containment piping, the contain- <br />ment fittings will not have to be held so tightly that they <br />must resist containment pipe movement. Once in place, <br />assemble fasteners supplied with the fittings to hold the <br />halves in place until the adhesive cures. <br />67 <br />