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7 Bonding primary Using heating blankets systems (cont.) Ameron heating blankets provide an efficient means for curing adhesive-bonded joints. Two sizes are needed for installing -- Dualoy3000/L systems.Refer to Chem Cure Pak quantities and heating following table when ordering. blanket sizes The heatingblanket reaches a Nominal Chem Heating Pipe Size Cure Pak Blanket maximum temperature of300°F (in (mm) Units per Carton Size (150°C),which will cure Ameron B20 2 50 30 1 adhesive in approximately 30 to 40 3 80 30 1 minutes.Detailed instructions are 4 100 20 1 included with the blanket.Observe the 6 150 20 II following points: • Use one heating blanket per bond:sleeve couplings in 3-inch sizes and larger will require two blankets.However,a single blanket is sufficient for curing both bonds in a 2-inch sleeve coupling. • Tie the blanket in place with nonconducting ties. • Before connecting to a power source,inspect the blanket and cord for loose wire connections and bare wires. • Do not plug the cord into a power source when standing in water or on a wet surface. • Check that the heating blanket has the correct AC voltage rating for your locality. Do not use direct current. • Mark the starting and disconnect time on the pipe with a grease pencil so that you will have a record of cure for each joint. • Verity that the blanket actually heats up after being plugged in. • Do not move or disturb the joint during cure. Blanket Fitting Fig.7-2.Place the thermostat end of the blanket against the joint with thermostat facing out. Wrap the rest of the blanket around thejoint so that the overlap covers the thermostat. 0 Thermostat Fig.7-3.When it is windy or below Fiberglass insulation backed by 4 50°F(10°C),close the pipe ends and aluminumfoil insulate around the blanket.Overlap the blanketabout 4 inches on each side and tie down the ends of the insulation. Connecting to non-Ameron fiberglass piping Connect Dualoy 3000/L fiberglass piping and non-Ameron UL-listed fiberglass piping by means of threaded adapters.Do not adhesive bond Ameron piping to that of another manufacturer.Bond the appropriate adapter from each manufacturer to the manufacturer's pipe using that manufacturer's adhesive.Complete the threaded connection using thread sealant,not pipe adhesive.By following this procedure you can use Dualoy 3000/1-piping to extend an existing line that employs the pipe from another manufacturer without voiding the UL listing of either system. 11