IFD-OSS Intumescent Fire Damper


IFD’s are designed to seal penetrations provided for movement of air via ducted or naturally ventilated means. Kilargo’s IFDs have no moving parts providing a reliability unmatched by conventional mechanical type fire dampers.


  • Cost effective solution
  • Stainless steel sleeve
  • No hazardous fibrous packing required
  • No thermal clearances required in installation
  • Reduced maintenance and resultant cost savings
  • Available with halar coating for hazardous environments

Technical Data

  • Integrity fire rating – up to 2 hours
  • Sizes available 150mm and 350mm Diameter
  • Stainless Steel sleeve (spigot) 360mm long
  • Halar coating option
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