We are Fire Rated Duct manufacturers & Suppliers in UAE
Fundamental Characteristics of Fire Rated Ductwork
Fire rated ductwork usually needs to pass through compartment walls or floors that will have a prescribed fire resistance period in terms of the load-bearing capacity, integrity and insulation criteria, for durations of 30 to 240 minutes. It is a requirement that where these compartment walls/floors are penetrated by HVAC ducts or other building services, the fire performance criteria for the penetrated wall or floor are maintained, such that fire in one compartment may not spread to other areas. So, the fire-resisting duct needs to maintain i.e., not compromise the fire resistance of the wall or floor through which it penetrates. The performance of a fire-resisting duct which penetrates a fire resisting/separating element requires careful consideration by specifiers and controlling authorities. The standard periods of stability and integrity should in all cases be at least equal to those required for the penetrated element of construction. – Blue book
The methods followed for the fire resistance of walls and floors penetrated by ventilation HVAC ducts in building regulatory requirements and under the guidance of BS 9999:
Protection using fire dampers
Protection using fire resisting enclosures
Protection using fire resisting ductwork
It is most important to choose most suitable fire resisting ductwork system for its intended application area to ensure that the ductwork fire performance meets the requirements of the relevant application.
Features Of Air Master Fire Rated Ductwork (AMFRD)
Airmaster fire rated duct is a uniquely designed, non-coated type fire resisting ductwork fabricated from hot dipped galvanized steel sheets.
Successful testing and assessments are done for the duct size range up to 6000 millimeters in compliance with BS 476 part 24 and ISO 6944-1985 at internationally accredited Applus+ Laboratories at Barcelona, Spain.
Tested in horizontal as well as vertical orien-tation separately under cellulosic (standard time Vs. temperature curve) fire conditions and successfully achieved over 120 minutes of fire resistance for integrity and stability of
» Duct A (Fire Outside the ductwork) and
» Duct B (Fire Inside the ductwork).
A global product assessment and certification of the fire resistance performance for ventila-tion and smoke extraction ducts is being done by Applus+ Laboratories
» ISO 6944-1985
» BS 9999
» Mechanical Ventilation System
» Car Park Smoke Extraction System
» Dual Ventilation / Smoke Extraction System
» Stairwell Pressurization System
» Kitchen Extraction System
» AMFRD-01A (without insulation)
» AMFRD-01B (without insulation)
» AMFRD-02A (with insulation)
» AMFRD-02B (with insulation)