Fire protection - shutting off for a ventilation system of a building with at least one ventilation channel leading to an air current

摘要

Fire protection – shutting off for a ventilation system of a building with at least one ventilation channel leading to an air current; with at least one shut-off plate which, in a closed position, which closes the ventilation channel 15, wherein at least one of its plate sides at least one layer of a press at elevated temperature inflating intumescent paint material is arranged and the position of the intumescent paint material pin on its side facing away from the shut-off plate with a cover plate is occupied, characterized in that the plate and the cover plate during a by means of the said intumescent paint material, should be triggered lifting movement of the cover plate is held connected to one another, whereby the cover plate plate sections (9), which are pivotally hinged to the shut-off plate.