The circular fire damper CR2 with a fire resistance of 120 minutes is installed in ventilation ducts passing through a construction element in order to stop the propagation of fire. The fire damper can be equipped with a common fusible link mechanism up to a motorised mechanism, positioned completely outside the wall. The refractory tunnel is made of galvanised steel. The CR2 fire damper is especially designed for larger dimensions up to 630 mm.


Galvanised steel tunnel

Damper blade

Operating mechanism with:

  • manual command
  • manual locking
  • blade position indicator
  • identification label
  • electrical connections

Sealing cold smoke

Blade bumper

Intumescent strip

Fusible link 72°C

Fire resistance

2 hours

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