Application purpose:
Fire resistance limit: 180 minutes for roof outlets and 90 minutes for drains.
Operating principle:
During a fire, the thermally expanding liner of the fire muff expands tenfold, resulting in the formation of a solid foam-coke foam that fills the hole in the ceiling. This is quite effective at blocking fire.
Size | Outside diameter | Through diameter | Sleeve diameter | Body fit diameter | Height | Minimum overlap thickness |
---|---|---|---|---|---|---|
mm | mm | mm | mm | mm | mm | |
110/110 | 160 | 90 | 110 | 110 | 130 | 100 |