Fireproof pipe partitioning has housing fixed to wall or ceiling and containing blocks of fireproof material on carriages, with chamber, fusion element

摘要

The housing (4) fixed to a wall or ceiling has a connection for at least one non-flammable pipe (3) belonging to the duct and has a chamber (5) as an extension to the pipe. The chamber is closed at the side by fireproof material which expands in case of fire under the effect of heat. The fireproof material is in at least one block (8,9) on a carriage (10,11) inserted into the housing and spring-tensioned towards the chamber. One end of a fusion element (20) is joined to the housing, and the other end to the front end surface (13,14) of the block facing the chamber.