Fan Coil Unit

Delta Fire Rated Ductwork System

Fire Rated Ductwork System providing 2 Hrs. Fire Resistance when tested to BS 476 Part 24: 1987 Majority of deaths in fire situation are caused by smoke inhalation. Non-fire resisting ductwork system can be responsible for allowing the initial spread of fire between the compartments, and by allowing the rapid spread of smoke.

DFRD System is a coated duct work system, especially designed for fire rated duct works for Ventilation Fire Ductwork and Pressurization Ductwork.

DFRD System coating is suitable for the application over the galvanized steel rectangular duct work.


  • Galvanized steel ducts manufactured as per drawing 30, 31, 32, 33 & 34.
  • Ducts coated with DFRD system and installed as per installation instruction, will have stability, integrity and insulation as per BS 476 part 24 standard.
  • Provides fire resistance for 120 minutes in accordance with BS 476 part 24.

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