Brand- och rökbegränsare

A fire and smoke damper comprises a casting frame 11 and a turning closing damper 13, around which there is a casing part or tube 12. The casing part or tube is placed through a through-opening E in the casting frame 11. A mass is cast in situ in the casting frame which allows tight mounting, in a s...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ARVI TOLMUNEN, JARNO VUORIO, RAIMO PARKKILA, KIM HAGSTROEM
Format:	Patent
Sprache:	swe
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING BLASTING ENGINEERING ELEMENTS AND UNITS FIRE-FIGHTING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HUMAN NECESSITIES JOINTS OR FITTINGS FOR PIPES LIFE-SAVING LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PIPES RANGES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	A fire and smoke damper comprises a casting frame 11 and a turning closing damper 13, around which there is a casing part or tube 12. The casing part or tube is placed through a through-opening E in the casting frame 11. A mass is cast in situ in the casting frame which allows tight mounting, in a smaller opening and easier transportation of the assembly. The casting frame may comprise openings e through which the mass can be brought into contact with a wall surface in order to seal any gaps. The duct may be circular or rectangular and the damper may comprise a flap having a peripheral seal. The arrangement may further comprise a swelling (intumescent) seal 20 around the casing.