| 摘要 |
A penetration firestop that permits longitudinal (L) and radial (R) movement of a pipe (42) through an opening in a partition (44) where the opening has a cross-sectional area larger than a cross-sectional area of the pipe, comprising: a) a thermal insulator (47) generally surrounding the pipe slidably engaged with a first side of the partition to substantially cover the opening; b) a first seal (52) interposed between thermal insulator and the pipe, the first seal permitting longitudinal movement of the pipe through the insulator; c) a second seal (62) interposed between the thermal insulator and the partition, the second seal permitting radial movement of the pipe and insulator relative to the opening; and d) securing means (58) for allowing radial movement of the insulator relative to the opening while generally maintaining engagement of the insulator to the first side of the partition so that the opening remains substantially covered during movement of the pipe. |
