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Fire resistance classification
“D” hole size
[mm]
Wall minimum thickness “S”
[mm]
Sealing
Rigid w
all
Installation remote from the vertical rigid wall
Wall minimum density 550 kg/m³
EI 120 S
(300 Pa)
EI 90 S
(500 Pa)
From Ø + 25
to Ø + 440
(circular hole)
100
Mortar or plaster putty
sealing
Fle
xible w
all
Installation remote from the vertical light wall (gypsum blocks wall)
Wall minimum density 995 kg/m³
EI 120 S
(300 Pa)
EI 90 S
(500 Pa)
From Ø + 25
to Ø + 35
(circular hole)
100
Mortar or plaster putty
sealing
D Hole size: see table above
S Wall minimum thickness: see table above
1. Rock wool panel 50 mm thick with 140 kg/m³ density.
2. PROMASTOP E PASTE or HILTI CFS-S ACR type sealant
3. PROMASTOP E PASTE or HILTI CFS-CT endothermic varnish
4. Vertical wall
5. Self-drilling screw Ø 5 X 60 mm
6. Self-drilling screw Ø 5 X 120 mm
7. Washer 40 x 40 mm
8. M10 threaded rod
9. C-shaped steel profile 10x41x41x41x10 mm
10. M10 nut
11. Self-drilling screw Ø 4,2 X 13 mm
12. Mortar M-10, EN998-2 or plaster putty
Installation remote from the vertical light wall (plasterboard)
Refer to the section Construction supports characteristics for further
information.
Comply with the minimum distances indicated on section Minimum
distances .
Wall opening
A opening must be provided in the wall as indicated in the table and
in the drawing
Damper positioning
Connect fire damper to the galvanized steel duct as indicated in the
drawing, with 4 screws Ø4.2x13
Install the damper with the mechanism facing away from the wall as
indicated in the drawing.
Between fire damper and wall the maximum distance is 1000 mm.
The maximum length of the part of duct connected to the damper
is 2100 mm
The fire damper has to be fixed and suspended from the ceiling as
indicated in the drawing.
The hanging structure is composed by:
– 2 C-shaped steel profiles 10x41x41x41x10 mm
– 2 M10 threaded rods
– 4 M10 nuts
Position the threaded rods 1000 mm from the wall and at a distance
of 100 mm from the side of the damper.
Filling
Fill the space between the wall and the fire damper using rock wool
which has density of 100 kg/m³.
Cover the duct over its entire length and fire damper with 2 rock
wool panels 50 mm thick and with a density of 140 kg/m³.
Fix first layer of rock wool panel to the duct with screws Ø5 X 60 mm
and washers 40 X 40 mm, and the second one with screws Ø5 X 120
mm and washers 40 X 40 mm.
Fill the space between rock wool panels and the the damper with
one rock wool panel with minimum thickness of 50 mm and mini-
mum density of 140 kg/m³.
The panels must be covered externally with endothermic varnish
type PROSTOP E PASTE or HILTI CFS-CT (minimum thickness of 1 mm)
and with an internal perimeter sealant type PROMOSTOP E PASTE or
HILTI CFS-S ACR (minimum thickness of 1 mm).
