Coupling assembly with intumescent material

Details Coupling assembly with intumescent material Coupling assembly with intumescent material

E - Fixed Constructions

04

B

E04B 1/94 (2006.01) A62C 2/06 (2006.01) F16L 5/04 (2006.01)

Patent

CA 2344849

A firestop coupling assembly (10, 210 or 310) for allowing the passage of utility members (50 or 52) through a penetration in a partition (54 or 56) while preventing the transmission of fire and smoke through the penetration. The coupling assembly including a coupling (12, 212 or 312) and a firestop extension (16, 216 or 316). The firestop extension has a housing (18, 218 or 318) with an inner passageway (22, 222 or 322). Intumescent material (28, 228 or 328) is mounted in the inner passageway of tree housing. The firestop extension is mounted on the coupling such that the intumescent material extends downward beyond a second end (12B, 212B or 312B) of the coupling. When the coupling assembly is exposed to heat, the intumescent material expands into the inner passageway of the housing of the firestop extension and blocks the second end of the coupling which prevents the transmission of smoke and fire through the coupling assembly.

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