≥ 50**
≥ 25
≥ 25
≤ 300
Screws has to be fixed in wall/ceiling construction. (If it is
needed use steel bracket).
≥ 50
≥ 40
POSITION:
1
Fire damper FDMA PM
2
Solid ceiling construction
3
Mineral stone wool min. density 140 kg/m
4
Fire protection mastic min. thickness 1 mm
5
Cement lime plate min. thickness 15 mm (min. density
3
870 kg/m )
6
Duct
≥ 50**
150*
Screw
≥ 25
(min. 4x50)
≥ 25
≤ 300
150*
3
46
Screw
≤ 300
(min. 4x50)
* min. 110 - Concrete/ min. 125 - Aerated concrete
** Around the perimeter
Used materials - example**:
3 -
Promapyr, Rockwool Steprock HD
4 -
Promastop - P, K
5 -
Promatect - H
**
Fire resistant insulation and fire resistant board can
be replaced by another approved fire sealing system
for damper installation with equivalent material
properties.