Abesco Intumescent Dampers are designed to prevent the passage of flame and smoke through or into air movement ventilation ductwork or through air transfer apertures in walls, timber and steel fire doors.
Abesco Intumescent Dampers are manufactured from galvanised channel and comprise horizontal metal blades lined with a heat reactive intumescent material. Abesco Intumescent Dampers are available for circular, rectangular and square ducts and apertures.
Features:
- Provides up to 4 hours fire resistance
- Easy to install
- No moving parts
- Low maintenance
- Very cost effective
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