Lindab RECTANGULAR Series - Page 10

10
1. Short extension duct
2. Flexible connector
L Air duct length
Lf Flexible part length of exible connector
The length (Lf) of the exible element must be equal or higher to 1%
of air duct length.
The minimum length (Lf) of the exible element is equal to 250 mm
for circular damper.
The minimum length (Lf) of the exible element is equal to 100 mm
for rectangular damper.
1. Positioning brackets
2. Sealing
3. Short extension duct
4. Flexible connector
5. Floor
 Use of exible connectors in the case of remote installation
1. Duct
2. Flexible connector
3. Short extension duct
4. Fire damper
 Example of damper support in case of installation within oor
with Fire Batt (Weichschott) sealing
1. Fire damper
2. Short extension duct
3. Flexible connector
4. C-shaped prole 36 x 36 x 2,5
mm, e.g. Würth or Müpro or Hilti
or equivalent
5. Fixing bracket 38 x 30 x 2 mm,
e.g. Würth or Müpro or Hilti or
equivalent
6. M10 screw
7. Washer
8. M10 nut
9. Fixing bracket 90° 36 x 33 x 5
mm, e.g. Würth or Müpro or Hilti
or equivalent
10. M10 threaded rod
 Minimum distances
It is recommended to keep enough space for using the control
mechanism or for maintenance.
Maintain a minimum distance of 200 mm between re damper and
any other element that crosses the wall (e.g: doors, electrical cables,
hydraulic pipes etc.) and between dierent re damper models.
In accordance with Articles 7 and 13 of EN 1366-2 respect the mini-
mum distances indicated below.