1000
≤
1000
≤
1000
≤
1000
≤
1000
≤
B
b
15
≤
W
, D
120
≤
H
h
W
, D > 120
„ s “
≈
05
si
b
04
Two layer or multi-layer
wall cladding
Operation side
FK90 casing
W = 100
W 125
≤
L=500
L=400
W > 125
to
User Manual 5.0-2 (2016-10) 12
Subject to change
Series FK120
FK90 fire dampers
Installation in rigid walls and ceilings and in metal stud walls (2) with cladding on both sides
All dimensions in mm
Installation in rigid walls
Installation in rigid ceilings is carried out in the same way.
Installation in metal stud walls
Installation between supports
Support interrupted
(trimmer)
Installation openings
(examples)
The rigid walls and ceilings can be made of concrete, lightweight concrete, porous concrete (aerated concrete) or
plaster. They can be constructed as masonry or from wallboard. Walls may also be configured as fire walls, shaft
walls, shafts or ducts.
Ceilings are generally made of concrete or aerated concrete in solid construction.
•
Rigid walls and ceilings
must have bulk density ≥ 450 kg/m³.
•
Metal stud walls
should be clad on both sides in two or more layers with 12.5-mm GKF plasterboard.
Installation openings produced from metal stud profiles must be used as circumferential frames for installing the fire
dampers. Cladding should be fastened to these using drywall screws
∅
≥ 3.5 mm in ≤ 200 mm.
All frame parts should be joined to each other correctly and appropriately with respect to the type of wall. The top
and bottom frame parts must always be connected to the stud profiles. Frames can also be configured as trimmers.
•
Installation
is carried out
with mortar
of groups II or III according to DIN 1053 or with class M10 according to
EN 998-2 or with the corresponding fire protection mortar or gypsum mortar.
•
Minimum thicknesses
of walls,ceilings, and spacings
⇒
see table on page 11
•
Recommended size of
installation opening b x h = (B + 80 to 100 mm) x (H + 80 to 100 mm)
.
The structural conditions should be taken into account by the customer, particularly when installing in metal stud walls
.
