| 摘要 |
The invention relates to a device in a fire restrictor and/or combustible gas restrictor (3) situated adjoining an opening (2) in a structural element (1). The said restrictor comrises a tubular body (4) with a restrictor leaf (5) rotatably mounted therein. The restrictor leaf is designed, at temperatures or smoke levels in excess of a predetermined value, to be brought by acontrol device (6) into a closed position. The restrictor (3), which is connected by the tubular body (4) to the opening (2), is arranged on one side outside the structural element (1). The tubular body (4) is surrounded, at least in an area adjoining the closed position of the restrictor leaf (5), by a prefabricated pipe (7) of a so-called fire protection compound in direct contact with the tubular body (4). A holder device (8), such as so-called sheet-metal shroud, for the pipe of fire protection compound is arranged around the latter. |
