Allvent ALVIFDR5 125MM Circular Intumescent Fire Damper

The Allvent ALVIFDR5 ALV502 is a 125mm circular intumescent fire damper designed for ventilation duct penetrations through fire-rated walls and floors. Its rigid steel-framed construction allows normal airflow during everyday operation, while the intumescent material expands under fire conditions to form a fire-stop barrier. Offering up to 2 hours of fire protection and no moving parts that require operational checks, it is a practical solution for residential, commercial and multi-residential ventilation systems where maintaining the integrity of a fire-rated barrier is essential. It can also be installed into steel ducting for a neat in-line application.

  • Circular intumescent fire damper
  • 125mm size
  • Rigid steel-framed construction
  • Intumescent fire-stop design
  • Allows airflow through fire-rated walls and floors
  • Intumescent material expands under fire conditions
  • Forms a fire-stop barrier
  • Up to 2 hours fire protection
  • Can be fitted into a steel duct
  • No moving parts
  • No operational checks required for moving mechanisms
  • Suitable for residential ventilation systems
  • Suitable for commercial ventilation systems
  • Suitable for multi-residential applications
  • Suitable where ducting penetrates fire-rated walls or floors

Click here for Data Sheet

SKU ALV502
Brand Allvent

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