Fire dampers are critical safety devices within ventilation and air conditioning systems. They are designed to prevent the spread of fire and smoke through ductwork. They automatically close when triggered by heat, helping to contain fire and protect escape routes.
Over time, dampers can become obstructed by dust, corrosion, or mechanical faults—making regular servicing essential to ensure they operate as intended in an emergency.
According to BS 9999, fire dampers should be inspected and tested at least every 12 months or more frequently in dusty or industrial environments. The process includes:
- Visual inspection of dampers and ductwork
- Manual or drop testing to check the function
- Cleaning and lubrication where needed
- Resetting and re-sealing after testing
