20
RDT-43-0921
®
NORD
fire
|
FDMA-PM
www.etsnord.com
Fig. 25 Gypsum wall construction- Battery- mortar or gypsum
EIS 90
Shown schemes of incorporation and damper are illustrative only!
Installation opening has to
be reinforced by profile (UW, CW).
Profil is fixed by screws ≥3,5 mm
with corresponding length.
Distance between screws ≤200 mm.
Installation opening has to
be reinforced by profile (UW, CW).
Profil is fixed by screws ≥3,5 mm
with corresponding length.
Distance between screws ≤200 mm.
Position:
1 Fire damper
2 Gypsum plate
3 Mineral wool
(type depending on the type
of construction)
4 Mortar or gypsum
Notice:
•
The installation opening for each fire damper has a minimum size of
a x b = (D + 97+3 mm) + 20 mm x (D + 97+3 mm)
or a x b = (D + 97+3 mm) x (D + 97+3 mm) + 20 mm
•
Gap between damper and construction is filled by mortar or gypsum
•
Distance between dampers 70 mm
•
Flange to flange connection - Up to four dampers can be installed
