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0 0 <br /> Primary Piping System Installation <br /> • Pipe or sub-asssemblies can be moved before the For Saddles: <br /> joints are cured if care is taken that the joint is not To heat cure a saddle, place the heating collar over <br /> disturbed. Bending or excessive movement is not the saddle outlet. During cool weather, a wind shield is <br /> advised. recommended to keep heat on the joint. Saddles must be <br /> heat cured for two hours. <br /> • Operating Instructions - Refer to Bulletin F6640 for <br /> complete operating instructions. All: <br /> Cure times are listed in Table 8. <br /> Do not bend or fold heating collar as this may break the <br /> heating elements and cause the collar to work improperly or TABLE 8. <br /> not at all. Adhesive Cure Times for Electric Heating Collars <br /> For Pipe and Fittings: cure Time <br /> Piping System/ <br /> Use the same size heating collar ` Adhesive Pipe Pipe Fitting Flange <br /> as the pipe size being installed, �� xs. ��� Grade Size (Min) (Min) (Min) <br /> RED THREAD IIA <br /> with the exception of flanges. 7000 or 8000 2"-6" 10 20 15 <br /> Retract protective mesh covering <br /> on 2" pipe prior to use of heating <br /> collars. Allow the joint to return to ambient temperature before <br /> applying stress to the joint. <br /> Do not use a heating collar that is designed for a larger size <br /> pipe. NOTE: FGS Smith Fibercast electric heating collars are <br /> I designed to fit around fittings and will overlap on pipe <br /> • With the uninsulated flap on the joints and couplings. Exceeding the recommended cure <br /> bottom(next tothe fitting),carefully "�` time on pipe joints where the heating collar overlaps <br /> wrap the heating collar around may shorten the life of the heating collar and/or damage <br /> the joint. Feed the strap through the pipe. <br /> the square ring. <br /> B. Fiber Glass Systems'Heat Packs-Although Heating <br /> CAUTION: The uninsulated flap is extremely hot Collars are the preferred method for heat curing joints, <br /> when the collar is on. DO NOT TOUCH with bare FGS Heat Packs that cure joints in approximately one <br /> e hands. hour are also available. Retract protective mesh covering <br /> on 2"pipe prior to use of heat packs. <br /> I <br /> • Tighten the straps until the heating <br /> collar is snug against the joint. Refer to Bulletin No. 4500, included with each kit for <br /> complete instructions. Observe all safety precautions <br /> For Flanges: listed on the installation sheet. <br /> • For 3" and 4" flange joints, use <br /> a heating collar that is one pipe size <br /> smaller. Remove the straps from <br /> the heating collar. <br /> • Carefully turn the collar inside out <br /> with the heated area facing the I.D. <br /> of the pipe. Place the heating collar in the I.D. of the CAUTION: The adhesive bead will cure faster <br /> flange. <br /> • A split ring of pipe may be used to hold the collar in place than the adhesive in the joint. It is important that <br /> while the joint is curing. the joint not be pressurized until it has been <br /> • Heat collar is not available for 2" flanges. An industrial subjected to the proper time-temperature cycle. A <br /> heat gun may be required to cure the joint. Be sure the temperature versus time to pressure curve is indicated in the <br /> end of the gun is at least six inches from the opening of instructions packaged with each adhesive kit. <br /> the flange. <br /> 10 <br />