Fire protection sealing for e.g. pneumatic delivery pipe, has cylindrical shell whose longitudinal axis is straight line, and grub screws and projecting plates provided at end regions of shell to fasten adjacent sealings

摘要

The sealing has a cylindrical shell (12), which lies about a pipe (24), and a swelling material (20) provided inside the shell, where the material expands when heated. A longitudinal axis (30) of the shell is in a straight line. Two end faces (40, 42) of the shell form angles of less than 90 degrees relative to the axis. Grub screws (50) and projecting plates (52) provided at end regions of the shell fasten the adjacent sealings.