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FDS...EX
• Two inspection openings for all sizes greater than 200x200 mm
• Great variety of installations rated up to EI120S
• Multiple FDS-EI90S damper installation - up to 4 dampers with a maximum size of 3260 × 2060 mm
Product Types
• FDS-3G...EX
Atex fire damper with a maximum fire resistivity of 120 minutes and a single body design. Size range from 100x100
up to 1200x800 mm.
• FDS-EI90S...EX
Atex fire damper with a maximum fire resistivity of 90 minutes. Construction of two sheet metal bodies, conductively
connected through a calcium-silicate frame. Width greater than 1200 mm and/or height greater than 800 mm up to a
maximum size of 1600x1000 mm.
• FDS-EI120S...EX
Atex fire damper with a maximum fire resistivity of 120 minutes. Construction of two sheet metal bodies, conductively
connected through a calcium-silicate frame. Width greater than 1200 mm and/or height greater than 800 mm up to a
maximum size of 1600x1000 mm.
Activation Types
Manually Operated Fire Dampers
By default, all manually operated fire dampers are supplied with a hand crank, optionally with micro switches. In case
of fire, the fire damper closes automatically after the melting of the thermal fuse. After the closing of the damper
blade, it is mechanically locked in the closed position and can only be opened manually. The actuating mechanism is
activated when the temperature of the air in the duct reaches 74°C and the damper closes within 10 seconds after the
melting of the fuse.
•
H0-EX
- Zone: 1, 2 (Gb), 21, 22 (Db)
Atex fire damper with an activation mechanism with a conductive plastic cover, manual crank and with a spring return
release mechanism activated by a fusible thermal link set to 74°C (on demand 100°C).
•
H2-EX
- Zone: 1, 2 (Gb, limit T6), 21, 22 (Db, limit T85°C)
Atex fire damper with an activation mechanism H0-EX + open and closed indication with AC 230 V or AC/DC 24 V
contact Atex rated switches. Atex temperature class reduced to T85°C in Db and T6 in Gb.
Actuator Operated Fire Dampers
By default, all actuator operated fire dampers are supplied with an actuator with microswitches. A fire damper
equipped with a spring return actuator can be closed with command from the building management system, or after
the breaching of the thermoelectric fuse. Actuator operated fire dampers are standardly equipped with a
thermoelectric fuse that activates the closing of the damper after the reaching or exceeding of the ambient
temperature of 72°C. The actuator power circuit is interrupted and its spring closes the damper blade within 20
seconds.
•
SET-EX
- Zone: 1, 2 (Gb), 21, 22 (Db)
Atex fire damper with an activation mechanism with Atex rated Schischek ExMax spring return actuator (with universal
supply unit 24...240 V AC/DC) with an electro-thermal fuse at 72°C and auxiliary switches.
•
SRT-EX
- Zone: only 2 (Gc), 22 (Dc)
Atex fire damper with an activation mechanism with Atex rated Schischek RedMax spring return actuator (with
universal supply unit 24...240 V AC/DC) with an electro-thermal fuse at 72°C and auxiliary switches.
Design
Atex fire dampers have casings made from galvanized sheet metal. Blades from non-asbestos insulants have a rubber
seal for cold smoke and an intumescent seal, that expands in a fire situation. All moving parts are conductively
connected to eliminate electric charges.
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