30
TPM 087/12
6. Damper suspension and connection to the duct
6.2.
Damper suspension has to be solve separately. Back-to-back smoke exhaust duct has to be
hung or supported so as all load transfer from the back-to-back smoke exhaust duct to the
damper is absolutely excluded. Exhaust duct suspension has to be made according to
recommendation of exhaust duct supplier.
6.3.
Threaded rods longer than 1,5 m has to be protected by fire resistant insulation.
6.4.
For fixing suspension system to solid ceiling has to be used only steel anchors with appropriate
fire resistance or other suitable system.
6.1.
Dampers can be suspended by using of threaded rods and fixing rails. Threaded rods has to be
designed depend on damper weight.
Fixing to solid ceiling
with anchor
2 3
4
5
100
150
M20
1
6
5
with fixing plate and
anchors
1
2
Position:
1
Threaded rod M8 – M20
2
Nut
3
Screw
4
Connecting nut
5
Steel anchor
6
Fixing plate - thickness min. 10 mm
Fig. 28 Examples of fixing suspension system to solid ceiling
without anchor
1
fixing plates
120
80
50
Tab. 6.1. Recommended load value of threaded rods G [kg] -
fire resistance 90 minutes
Size
A
s
[mm ]
Weight G [kg]
One rod
Pair of rods
M8
36,6
22
44
M10
58,0
35
70
M12
84,3
52
104
M14
115
70
140
M16
157
96
192
M18
192
117
234
M20
245
150
300
2
Summary of Contents for SEDM
Page 1: ......
