DEVICE FOR RADIALLY SEALING THE OUTER CIRCUMFERENCE OF A PIPE ABOUT ITS PASSAGE THROUGH A WALL

摘要

The invention relates to a pipe seal (1) comprising a sheet-metal casing (3) bendable around a pipe (2) and a swelling compound (9) arranged on the inside thereof which, in the event of fire, is capable of sealing the pipe (2) and/or a wall channel. According to the invention, projections (7) containing swelling compound are associated at intervals from one another with the inside of the sheetmetal casing (3).