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Circular fire dampers with a fire resistance of 120 minutes. When the temperature in the damper rises above 72 °C the fusible link will break and the damper will close. When closed, the expanding material around the fireblade will swell and assure a fire and air-tight seal against hot air and smoke. The tunnel is made out of galvanized steel. The CR2 + CFTH fire dampers have a manual operating mechanism with indication of the blade position. Optionally, an end or begin of range switch FDC CFTH can be added to the mechanism. The operating mechanism can be removed easily, for inspection purposes or for replacing the fusible link.
Application
Fire compartimentation
To close and seal off ventilation ducts in case of fire
For air temperatures of -10°C up to temperature of fusible link
For air with RV 0-96%
Range of Ø355 up to Ø630 mm
For size Ø100 upto Ø315 see type CR120 + MFUS
To be mounted horizontally or vertically
Material
Galvanized steel
Construction
Composition
Galvanized steel tunnel
Fireproof blade in fibersilicate
Intumescent strip around the valve
Manual control mechanism CFTH with fusible link 72 °C
1. Refractory casing (made out of galvanised steel)
2. Damper blade
3. Operating mechanism
4. Sealing cold smoke
5. Blade bumper
6. Intumescent strip
7. Fusible link 72°C
8. Rubber sealing ring
9. Handle for deactivation
10. Allen key for arming
Mounting
To be inserted in fire resistant walls or floors according to the mounting instructions delivered with the valves
To be connected with round air ducts
Certification
Classified EI120(ve,ho i<->o)S at 500Pa according EN 13501-3 in ridid wall and rigid floor
Classified EI60(ve i<->o)S at 500Pa, EI90(ve i<->o)S at 300Pa and EI120(ve i<->o)S at 500Pa according EN 13501-3 in different flexible wall types
Certified with test report Efectis 10-A-459 / EFR-19-005409 or WFRG 16128
Airtight EN 1751 class B, Class C upon request
CE marked
Accessories
Fire resistant plaster, type BP
End- or begin of range switch, type FDC CFTH (available as KIT or premounted)
Text for tender
The fire dampers shall be of the round type with a fire resistance of 120 minutes, certified according to EN 13501-3 . They will consist of a galvanized steel tunnel and fireproof valve. The control mechanism will be manually operated and shall have a blade position indicator and fusible link of 72 °C
ATC
type CR2 + CFTH
The fire dampers shall be of the round type with a fire resistance of 120 minutes, certified according to EN 13501-3 . They will consist of a galvanized steel tunnel and fireproof valve. The control mechanism will be manually operated and shall have a blade position indicator and fusible link of 72 °C