Smoke extraction blade damper ERK-MB
TECHNICAL DOCUMENTATION
Suspensions and weights |
Construction subject to change
No return possible
Stand: 2019-10-08 | Page 20
Suspensions
The uncovered threaded rods must be dimensioned such that
the calculated tension of 6 N/mm
2
is not exceeded (this ap-
plies to a max. length of 1.5 m). The suspending brackets
must be guided in U-shape around the duct (EN 13661).
* Stressed cross-sections of threaded rods with metric ISO
thread to DIN 13, part 28
Table 5 - Suspensions
Weight table ERK-MB [kg]
Table 6 - Weight table
Note regarding steel dowels with general building supervi-
sory approval:
The suspending brackets must be fastened using expansion
dowels M8 made of steel. The dowels must be installed ac-
cording to the specifications of the valid approval
notifications of the Institute of Structural Engineering and, in
addition, the installation length must be twice as deep as re-
quired in the approval notification unless stated otherwise in
the approval notification; the calculated tensile load per do-
wel must not exceed 500 N. Special dowels with a maximum
tensile load of 700 N can be also used.
Please note:
To design suspension with the threaded
rods, the following weights must be taken
into account:
Smoke extraction blade fire-re-
sistant smoke extraction duct (with
attachment/connection) + suspension
(threaded rod and pole brace).
With suspension heights >1.5 m, the sus-
pensions (threaded rods) must be covered
on site and the weight of the suspension
covering must be taken into account when
designing the suspension.
Nominal dimension
Rod weight
[kg/m]
Stress cross-section [mm²]
*
Load at 6 N/mm²
per threaded rod
[N]
[KP]
M6
0.18
20.1
120.6
12.29
M8
0.32
36.6
219.6
22.38
M10
0.50
58.0
348.0
35.47
M12
0.73
84.3
505.8
51.55
M14
0.97
115.0
690.0
70.33
M16
1.35
157.0
942.0
96.02
M20
2.08
245.0
1470.0
149.84
M24
3.00
353.0
2118.0
215.90
M30
4.75
561.0
3366.0
343.11
Width W [mm]
Length L
200
300
400
500
600
700
800
900 1000
[mm]
Height H [mm
]
340
43
45
49
52
56
59
62
65
69
250
505
52
57
61
65
69
73
76
81
85
670
62
67
71
76
80
85
90
95
99
835
70
76
80
86
91
97
102
107
112
1000
77
83
89
96
101 107 113
119
124
