COMPLIANCE INFO_1999-2005 - Laserfiche WebLink

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SECTION 6 ♦ Installation b. If the heating collar will not close, tie a string or 4. Curing with Smith Heat Packs(chemical heat packs) wire around the collar to hold it in place. Smith Heat Packs,which cure joints in approximately c. Halfway through the cure time, rotate the heating one hour, are also available(see Fig. 1.6.22). Complete collar 180 degrees to assure complete coverage of instructions for these heat packs are included with the bonding area. each kit (Bulletin No. d. Note: The next larger size heating collar can be 4500). used to cure thick wall fittings joints(such as el- Observe all bows and tees). When a larger size is used, the safety precau- heating collar does not have to be rotated, but the tions listed cure time remains as shown. on the in- struction 3. Curing flange joints sheets that accompany Flange joints the heat may be heat packs. Note: cured by revers- Do not use FIGURE 1.6.22 ing the heating chemical heat collar and plac- packs to cure ing it inside the saddles. assembled joint (see Fig. 1.6.20). The overall effectiveness of chemical heat packs de- pends on ambient temperature. When ambient tem- Use the paper FIGURE 1.6.20 perature falls below 32°F (0° C)-either air temperature towels provided or wind chill-Smith Fiberglass Products recommends in the adhesive kit to remove excess adhesive from the that an insulation blanket be used to sustain proper end of the spigot(inside the joint). Remove most of curing temperature. Insulation is available from Smith the adhesive from the inside of the flange by wiping Fiberglass Products. with dry paper towels. Use paper towels wetted with solvent to complete the clean up. Use only enough To dispose of expired or damaged chemical heat packs, solvent to wet out the paper towels, and never pour follow this procedure carefully: the solvent into the joint. a. Wear eye protection and gloves. To hold the heating collar in place, make a"flange clamp"by cutting a section of the same size pipe and b. In a well-ventilated area, thoroughly mix the two then removing a 90 degree section of the wall. Also, dry chemicals in the kit bag or other dry container. adding slits (axial cuts)in this clamp will make it more Mix only one kit at a time. flexible. The heating collar can be wrapped around the flange clamp c. Use a metal bucket for disposal. DO NOT USE A with the heat- PLASTIC CONTAINER; during disposal, enough ing surface fac- heat to melt plastics is generated. ing outward. Axial Cuts / The clamp can / d. After the dry chemicals are thoroughly mixed, pour then be insert- / the dry chemicals into the metal bucket; then add ed to cover the �,, one pint(one-half liter)of cold water. bonded joint 190° (see Fig. 1.6.21). e. Let the kit react until it neutralizes and heat dissi- (Note: If it is I Flange pates. The mixture will look like plaster. Be sure difficult to Clamp the kit is thoroughly mixed with the water and compress the there are no lumps. If there are lumps, stir the mix- flange clamp, FIGURE 1.6.21 ture to dissolve them before mixing the next kit. use hose clamps to hold the flange clamp during insertion.) DO NOT f. Then, mix the next kit using the same procedure. INSERT the clamp/collar more than halfway into the joint, or it will be difficult to remove. Clamp length NOTE: After the solution is neutralized, it is non- must be longer than the width of the heating collar to hazardous and may be disposed of. aid in removal. REMEMBER: MIX ONLY ONE KIT AT A TIME. RED THREAD IIA Pipe & Fittings — 15