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Duct between fire damper and fire separating construction can be suspended by using threaded rods
and suspension rings . Load the suspension system depend on weight of the fire damper and duct system.
Max. length between two suspension systems is 1500 mm.
Damper assembly procedures must be done so as all load transfer from the fire separating construc-
tions to the damper body is absolutely excluded. Back-to-back air-conditioning piping must be hung or
supported so as all load transfer from the back-to-back piping to the damper is absolutely excluded.
Threaded rod fixing to the ceiling construction
The insulation boards are fastened to the duct by weld pins. Distance between weld pins, distance
between weld pins and flanges is dependent on the materials. For more information see documentation
of insulation manufacturer.
Position:
1
2
3
4
5
6
97
Fire damper
Duct
Insulation
Threaded rod
Suspension ring
Weld pin
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