FIRE DAMPERS
360
361
Design changes reserved
All installation opportunities are valid for:
•
Installation onto duct in any shaft axis angle position
•
Airflow and fire protection in both sides
•
Closed blade air leakage according to EN 1751, class 2
•
Casing air leakage to EN 1751, class C (on demand)
•
Fire damper can be equipped with thermic fuse with 72
°
C or for warm air ventilation systems 95
°
C release temperature
•
Fire damper casing is manufactured form galvanized steel, but on demand can be made from:
Galvanized steel and powder coated
Stainless steel
Stainless steel and powder coated
Fire damper for areas with potentially explosive
atmospheres are also available (for additional
information see FD-Ex catalog)
425
270
∅
n
-2
∅
n
+85
40
120
250
FD25-E cylindrical fire damper with solenoid actuator
•
spring return actuator with integrated limit switches and
thermoelectric release mechanism (72°C)
•
manual rearmation with handle
•
possible closing with solenoid
•
manual closing possible
fire damper housing
1
damper blade
2
solenoid actuator
3
fusible link (72°C)
4
smoke seal
5
intumescent strip
6
limit switch
7
1
2
4
5
7
3
