公开(公告)号：US20180306352A1

公开(公告)日：2018-10-25

申请号：US15738080

申请日：2016-06-09

Applicant: ROCKWOOL INTERNATIONAL A/S

Inventor： Rainer ALBERS

IPC: F16L5/04 ,  H02G3/04 ,  H02G3/22

CPC classification number: F16L5/04 ,  F16L2201/60 ,  H02G3/0412 ,  H02G3/22

Abstract: The disclosure relates to an intumescent fire sleeve for a conduit, such as a pipe, a cable or a device penetrating a wall, a ceiling or a floor in a building, said fire sleeve comprising at least one layer of intumescent material and one carrier being connected to the layer of intumescent material, and said fire sleeve having a length (L) that at least corresponds to a circumference of the conduit for which it is intended, with the characteristics that at least the carrier has spring-loaded characteristics and that the carrier, in a non-applied position has the ability to coil onto itself in a spiral manner. The disclosure also relates to a coil of such intumescent fire sleeves and to a method for installation of such an intumescent fire sleeve.