Fire break for ventilation ducts

Details Fire break for ventilation ducts Fire break for ventilation ducts

F - Mech Eng,Light,Heat,Weapons

24

F

98/41

F24F 11/00 (2006.01) A62C 2/06 (2006.01)

Patent

CA 1319293

ABSTRACT OF THE DISCLOSURE The present invention pertains to a fire break for ventilation ducts, comprising at lest one package of parallel fireproofing plates made of a material that expands strongly when exposed to heat, said plates being oriented in the direction of flow in the ventilation duct, with the package filling the cross section of the ventilation duct. To prevent the flames from breaking through and/or to prevent deflagrations into the next fire control sector during the expanding material's reaction time, at least one insert that fills the cross section of the ventilation duct is disposed in the vicinity of the package, said insert being filled of expanded material that is a strongly thermally conductive material.

601847

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