2
SMOKE CONTROL DAMPERS
1. Galvanized steel sheet casing
2. Smoke seal
3. Smoke resistant damper blade
4.
Intumescent joint
5. Connection flanges
6. Actuator
1
2
6
PRODUCT OVERVIEW
Smoke control dampers FDSD are used in smoke extraction
systems for extraction of smoke gases or providing suppy air to
one or more fire compartments. Smoke control dampers consist
of steel sheet case, calcium silicate damper blade, damper blade
mechanism outside of the airflow and an electric actuator.
Smoke control damper case is made out of galvanized steel
sheet casing. Variants produced from stainless steel and powder
coated steel are also available. Calcium silicate blade is equipped
with brass bearings and seals made out of polyurethane and
elastomer rubber.
Smoke control dampers FDSD are produced in sizes from
200x200 till 1500x800 mm.
FDSD dampers are equipped with Belimo actuator drives in
24 V or 230 V versions.
Activation of smoke control dampers equipped with
electric drives can be via smoke detector or remotely via control
signal. Rearming of the electric smoke damper can also be
done remotely via control signal. All electric actuators are
equipped with end switches for position signalling.
In the case of fire, there are two possible safe positions for
the smoke control damper, open or closed, depending on the
situation on site and smoke extraction scenario.
Smoke control dampers are designed for installation in
standard rigid supporting construction at least 100 mm thick,
with bulk density of at least 450 kg/m³. For such installations,
fire resistance up to 90 minutes is achieved.
All smoke control dampers are tested according to the EN
1751 for airtightness and retain class 3 leakage on the closed
damper blade and class C on the casing air leakage.
3
4
5
