4.6 Fixing the fire damper
4.6.1 General
For installation remote from walls and ceilings and
installation with fire batt, the fire dampers must be sus-
pended with steel threaded rods (M10 – M12). The rods
have to be fixed to the ceiling slab; the required fire
resistance must not be compromised. Use only fire-
rated steel anchors with suitability certificate. Instead of
anchors, you can use threaded rods and secure them
using nuts and washers. Secure the threaded rods
above the ceiling using steel nuts and washers.
Threaded rods up to 1.50 m long do not require any
insulation; longer rods do require insulation (according
to Promat® work sheet 478, for example). Load the sus-
pension system only with the weight of the fire damper,
ducting must be suspended separately. For weights [kg]
of FKA2-EU fire dampers, see
.
In addition to the fixing systems described in this
manual, you may also use fixing systems that have
been approved by accredited testing institutes. This
applies in particular to the fire damper installation near a
wall or in a corner (when angle sections or mounting
plates are used).
Fig. 34: Fixing to the ceiling slab
5.4 Threaded rod
5.7 Fire-rated anchor (with suitability certificate)
Fixing with wallplugs with suitability certificate for
fire resistance
Fixing with threaded rod and push through installa-
tion
Installation
Fixing the fire damper > General
Fire damper Type FKA2-EU
50