Fire damper BKP-EN
Technical documentation
Installation information
Construction subject to change.
No return possible!
Version: 2020-09-01 | Page 18
INSTALLATION INFORMATION
Connection of ventilation ducts
The fire dampers must be connected to the ventilation system
by means of ventilation ducts either on one or on both sides.
When connected on one side, finishing protective gratings
made of non-flammable building materials (EN13501-1) must
be provided on the opposite side. The fire dampers can be
connected to non-flammable or to flammable ventilation
ducts. Ventilation ducts must be suspended separately.
On the non-operating side, either fastening materials (e.g.
screws, press-in nuts, etc.) must be provided and attached for
mounting duct components prior to installation of the BKP-
EN. Alternatively, extension pieces (on site or as accessories,
e.g. SCHAKO type VT) can be mounted.
The local regulations or national standards on ventilation sys-
tems (in Germany e.g. LüAR) apply. In particular, ventilation
ducts must not exert significant forces on walls, supports or
ceilings and thus also on fire dampers as a result of thermal
expansion (in case of fire). Appropriate compensation
measures, such as the arrangement of flexible spigots
(SCHAKO type FS) or a suitable duct routing (duct angles and
distortions), must be taken as required. National regulations
must be observed and adhered to.
When using flexible spigots (SCHAKO type FS), the flexible part
of the spigot (polyester fabric) must have a minimum length
of l
min
= 100 mm when mounted, resulting in an installation
dimension of approx. L = 160 mm. Alternatively, flexible ven-
tilation ducts can be connected.
With ventilation duct arranged on one side and security
grille
Figure 24: Connection example of a ventilation duct ar-
ranged on one side and security grille
On both sides with ventilation ducts
Figure 25: Connection example on both sides with ventila-
tion ducts
On both sides with flexible spigot and ventilation ducts
Figure 26
: Connection example on both sides with flexible
spigot and ventilation ducts
BK
Fire damper model BKP-EN
ASG
Security grille type ASG
1.)
VT
Extension piece type VT
1.)
FS
Flexible spigot type FS
2.)
LL
Ventilation duct
1.)
made of non-flammable building materials (EN 13501-1)
2.)
at least normally inflammable to EN 13501-1
"a" = 50 mm: Minimum distance between the front edge of
the open damper blade and the finishing protective grating
(ASG), the flexible spigot (FS) or the duct connection spigot
(RS).
