6
Smoke extract duct and
cover grille
Construction of the duct
Smoke control dampers for multi compartments may be
used with ducts that have been tested to EN 1366-9
(Single compartment smoke extraction ducts) and to
EN 1366-8 (Smoke extraction ducts) and that are con-
structed either from materials of the same density
(ρ ≈ 520 kg/m³) as the tested material or from the same
material with a greater density or thickness.
Smoke extract ducts made from Promatect AD 40 or
Promatect L 500 boards (ρ ≈ 500 kg/m³) may also be
used.
Smoke extract ducts with national general building
inspectorate licences
Smoke extract ducts can also be connected with a
national general building inspectorate licence or a
national general appraisal certificate. If the smoke
control damper is not exposed to mechanical forces,
the functional stability of the smoke control damper is
not affected (connection according to assembly and
operating manual of the smoke control damper). The
sizing of the smoke extract duct used remains the
responsibility of the system installer and the system
owner and must be approved with the respective
national authority.
6.1 Smoke extract ducts
Calcium silicate smoke extract duct
Fig. 18: EK-EU connection to the calcium silicate smoke
extract duct
X
1
Smoke extract duct and EK-EU flush on the outside
X
2
Smoke extract duct and EK-EU flush on the inside
①
EK-EU
②
Connecting strips according to instructions by the
manufacturer of the smoke extract duct
③
Calcium silicate smoke extract duct
④
Reinforcing strip
⑤
Steel staples
Sheet steel smoke extract duct
Fig. 19: EK-EU connection to a sheet steel smoke
extract duct
①
EK-EU
②
Connecting subframe
③
Flexible connector (by others)
④
Sheet steel smoke extract duct (by others)
⑤
Screw connection (by others)
Smoke extract duct and cover grille
Smoke extract ducts
Smoke control damper Type EK-EU
27
Содержание EK-EU
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