Fields of application
For preventing the transmission of fire and smoke through ventilation ducts that go across fire lobbies.
For installation in fire-resistant suspended ceilings.
The fire prevention unit is suitable for installation in suspended ceilings designed as panelled ceilings in screw-type and spatulated design that meet the requirements of an independent component of being fire-resistant for 90 minutes in the event of a fire from top or bottom and classified in fire resistance class F90-A. It can be used for both supply air and return air. The BAK 250 fire protection box has resistance class K 90-U.