Ace Heating Solutions Mini-Pack, Инструкция по эксплуатации и техническому обслуживанию

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ACE BOILER INC.
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3. Install heat exchanger bundle: Bundle should be lifted or jacked with care as to not damage the
tubes or tube sheet gasket surface. Lift the bundle to the proper height prior to tightening nuts
down. Do not use the nuts to lift the bundle into the shell. Bundle should be left supported until
installation is complete.
4. Apply gasket material on channel bonnet: Overlap gasket material around bolt hole as above.
Apply gasket on divider sections as well. Overlap the divider gasket strips over the main gasket.
5. Bolting bonnet: Use jack or overhead support to lift bonnet into position, align with the bolts that
are in place, level and slide the bonnet against tube sheet. Install nuts on bolts in place and tighten
finger tight. The bonnet should be left supported until installation is complete.
6. Torque: Unless otherwise specified, when using Goretex or spiral wound gaskets, use the
following table to find recommended bolt tightening torque.
MP
Size
Bolt Size Minimum
Torque
Maximum
Torque
4" 1/2" 45 ft.lb 60 ft.lb
5" 1/2" 45 ft.lb 60 ft.lb
6" 1/2" 45 ft.lb 60 ft.lb
8" 1/2" 45 ft.lb 60 ft.lb
10" 5/8" 90 ft.lb 120 ft.lb
12" 5/8" 90 ft.lb 120 ft.lb
16" 5/8" 90 ft.lb 120 ft.lb
7. Torque bolts: Set torque wrench to half of recommended torque rating. Tighten bolts according to
alternating crossover pattern. Do not over tighten any one bolt initially as this could crimp the
gasket. The sequence is to lightly tighten the first bolt then move directly across the circle for the
second bolt. Continue as illustrated below. Tighten each bolt in increments repeating the cycle
until half torque ratings are reached. Reset torque wrench to full torque rating, and repeat
tightening sequence in increments until full torque ratings are reached. Remember, for the gaskets
to work properly, the flange faces must be kept parallel and the bolts tightened uniformly.
8. Completion: When bolt-tightening sequence is complete, remove the support from the tube sheet
and the channel bonnet.