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Secondary Containment System Installation t1?'A LYfor- �'THREAt,tiA rwonclar conic nm�t�l.Pi*# For Saddles: Curing sad- After cleaning all sanded surfaces,apply a thick coating dles can be (1/16"/1.6 mm minimum)of adhesive to the socket area of accomplished the containment fitting. Liberally coat the flanges(flat bond- by wrapping a ing surfaces)of both halves of the clam shell fittings with ad- heating collar over the hesive(1/16"/1.6 mm minimum thickness). Next,apply a saddle outlet. For out- thick coating (1/16"/1.6 mm minimum)of adhesive to the door installations, place scarfed or sanded surfaces of the pipe ends. wind shields on both sides of Assemble the containment fitting by placing the half with the saddle to prevent heat loss. Total cure time must be two the pre-installed threaded female inserts on the bottom. Do hours for saddles. Allow the saddle to cure and cool down not over-insert pipe past scarfed area. to ambient temperature before bonding or threading in the Inserts must be used on 3"and 4"90°elbows and tees side run. Do not use chemical heat packs to cure saddles. for Closed Interstitial Monitored Systems.Inserts are not re- quired for Open Gravity Flow Systems.Prior to bonding the Allow the joint to return to ambient temperature before insert,spread the insert splice 3 or 4 times to relax the in- applying stress to the joint. sert. The insert may be placed on the containment pipe or primary fitting for easy access prior to bonding of the con- B. Industrial Heat Gun tainment fitting.Locate the inserts adjacent to the inside ra- An industrial heat gun and heavy duty aluminum foil may dius of the containment fitting,as shown on page 19 drawing also be used to create a mini-oven around the clam shell "Closed Interstitial Monitored System Inserts."The split in secondary containment fitting.Wrap foil around the fitting the insert must be facing up.Do not allow insert to overlap. and cinch the ends down. Cut a 10"to 12"section of 2"or 3" Use the bolts supplied with the clam shell fitting to as- pipe and place inside of the foil.Place heat gun in the and of semble the fittings on the pipe. Use of an air or electric the pipe.Do not place heat gun any closer than 12"from the wrench with a magnetic socket will greatly facilitate assem- fitting.Cure time is approximately 15 minutes. For a proper bly. When starting the bolts, allow the bolt to start with cure,maintain the temperature between 250"F and 400°F. minimal pressure on the tool. Excessive pressure may push the insert from the fitting. Tighten the bolts alternate- ly and with equal force. DO NOT EXCEED 8 FT.-LBS.OF TORQUE! NOTE: Prior to bonding,make sure that the pipe fits snugly into the socket ends of the clam shell fittings and that z, there are no gaps between pipe ends and fitting sockets.A properly bonded joint should have adhesive visible from all bonded surfaces. NOTE:Take care not to disturb a completed containment piping joint when assembling additional joints. The adhesive must be fully cured before applying stress to the assembled joints. Read and observe the adhesive instructions supplied with each adhesive kit T GCI A. Electric Heating Collar Refer to Bulletin No. F6640 for complete operating instructions. NOTE:Allow adhesive to gel before applying heating collar. Approximate adhesive cure time when using electric heating collars on clam shell secondary containment fit- tings is 25 to 30 minutes per joint. See pages 10-11 for additional heating collar infor- mation. Two heating collars are required for each end of a clam shell containment fitting bond. RED THREAD IIA Pipe & Fittings — 24