Fire-resistant damper model BKA-Ü
Technical documentation
Specification texts
Construction subject to change
No return possible
Version: 2021-07-01 | Page 33
SPECIFICATION TEXTS
Fire-resistant dampers of special design and application are
used if, as part of ventilation planning, openings are required
in fire-resistant inner walls or ceilings for the air intake, they
must be closed in the event of a fire.
The competent building supervisory authority will decide
whether the opening is admissible, for example because it
differs or in connection with the approval of the fire protec-
tion concept.
The required dampers are fire-resistant dampers which are
closed in case of fire driven by a suitable smoke detecting trig-
gering device in the event of a fire, thus preventing the prop-
agation of fire and smoke through the component opening.
Dampers of this type must not be connected to ventilation
ducts in connection with RLT systems in buildings.
The general type approval (aBG) Z-6.50-2012 in its currently
valid form, the installation, mounting and operating instruc-
tions and the relevant national standards and directives must
be observed.
The standard fire-resistant damper BKA-Ü consists of the fol-
lowing components (fitted or wired ex works):
SCHAKO Fire damper BKA-EN, with CE marking and Decla-
ration of Performance (DoP) in accordance with the Con-
struction Products Ordinance, housing made of galva-
nised sheet steel with spring return actuator 24 V.
SCHAKO Mounting part type EBT, galvanised sheet steel
model (painted black matt on the inside).
SCHAKO Finishing protective grating type ASG on both
sides, galvanised sheet steel model (operator side:
painted black matt).
SCHAKO Extension piece type VT, galvanised sheet steel
model, required for H ≥ 400.
SCHAKO Smoke detection system RMS, in compliance
with abZ/aBG No. Z-78.6-58
Installation is performed in interior walls (horizontal position
of the damper blade axle) and ceilings. In doing so, the gen-
eral building supervisory approval (aBG) no. Z-6.50-2012, the
Declaration of performance (DoP) of BKA-EN and the general
building supervisory approval (abZ) / general type approval
(aBG) no. Z-78.6-58 and the associated technical documenta-
tion must be observed. For the installation in solid ceilings,
the dimensions of BKA-Ü are limited to W and H = 500 mm.
For wall installation, the smoke detector (type RMSII-L) must
always be installed above (B side) in the assembly part type
EBT.
Product:
SCHAKO
Type BKA-Ü
General type approval (aBG) no. Z-6.50-2012
Dimensions
Width (B): .................... mm
Height (H): .................... mm
Length (L): 500 mm (standard length refers to BKA-EN)
Alternative designs or accessories (at an extra charge) (select
as desired)
Model made of stainless steel material no. 1.4301 (V2A)
Note: EBT painted in black matt on the inside, ASG painted
in black matt on operator side
Model made of stainless steel material no. 1.4571 (V4A; re-
placeable, non-coated parts are made of stainless steel ma-
terial no. 1.4301)
Note: EBT painted in black matt on the inside, ASG painted
in black matt on operator side
Housing with DD coating (solvent-containing two-compo-
nent top coat based on polyurethane varnish - RAL 7035 /
light-grey)
DD coating inside and outside (replaceable,
non-coated parts and the U-profile of the damper
blade are made of stainless steel material no. 1.4301)
Note: EBT painted in black matt on the inside, ASG painted
in black matt on operator side.
Spring return actuator with thermoelectric trigger mecha-
nism BAT (B10/B20/B32) or temperature monitoring unit
(S00/S10/S20)
Releases at an ambient temperature of 72°C and an inter-
nal duct temperature of 72°C containing integrated micro
switches for indication of damper end positions, assign-
ment of the actuators according to Table 8 page 26:
•
Type B10 (BFL24-T-ST SO)
B20 (BFN24-T-ST SO)
B32 (BF24-TN-ST SO)
Type S00 (GRA126.1E/SO3)
S10 (GNA126.1E/SO3)
S20 (GGA126.1E/SO3)
Installation frame type ER-A1
, consisting of silicate boards,
with fastening material
,
for installation of the BKA-Ü in light-
weight partition walls with metal posts and panelling on both
sides as classified according to EN 13501-2 or comparable na-
tional standards. The ER-A1 installation frame is to be ordered
as an accessory (extra charge)
–
supplied loose or factory-
mounted. A circumferential intumescent seal is located in the
centre of the installation frame type ER-A1. Fixing lugs are in-
cluded in delivery.
Product: SCHAKO
Installation frame
type ER-A1
Dimensions (B;H according to damper size):
Width (B):
……………………mm
Height (H):
……………………mm
(Unless stated otherwise in the order details, the installation
frame type ER-A1 will be delivered loose as a mounting kit)
