FK90 fire damper for air transfer applications (Ü-FK)
The FK90 fire damper, in combination with a smoke detector, closes air transfer applications at an early stage when smoke is detected or when the trigger temperature is reached. This reliably prevents smoke from spreading, even at temperatures below the trigger temperature of the fire damper.
Technical details
- Compact system solution consisting of a maintenance-free FK90 fire damper with OR4 or OR32 smoke detector, housing extension and protective grille
- Particularly suitable for confined installation situations
- FK90 fire damper with a wide range of tested installation situations
- DIBt approval or general type approval available
- Quick installation thanks to factory-assembled OR4 smoke detector
Declarations & proofs
Product details
In conjunction with the OR4 or OR32 smoke detector and protective grilles on both sides, the FK90 fire damper is used as a system solution for closing air transfer applications. The combination serves as a closure in fire-resistant interior walls or ceilings when openings are required for the purpose of air transfer. The system solution is approved by the DIBt (German Institute for Building Technology).
FK90 for air transfer applications with OR4 or OR32 smoke detector
The FK90 fire damper is available with a pre-mounted OR4 or OR32 smoke detector for closing air transfer applications. The OR4 or OR32 smoke detectors are protected in the housing extension.
Versatile and time-saving installation options
The FK90 fire damper has been tested in numerous installation situations. The OR4 or OR32 smoke detector can be installed in a wide variety of positions and in any air flow direction. The flexibility of installation is further enhanced by the option of positioning the actuator at the top, bottom or side of the fire damper. This is particularly suitable for confined installation situations. On request, the OR4 smoke detector can be pre-assembled at the factory, saving valuable time during installation.
Product markings of the Ü-FK fire damper for air transfer applications
The system solution for air transfer applications with the FK90 fire damper has DIBt approval (general type approval). The FK90 fire damper has both an EPD (Environmental Product Declaration) and CE marking. In addition, the FK90 has been awarded a hygiene certificate by an independent hygiene institute.
Technical specifications
The values specified for width and height are standard values. They can be produced for widths from 200 to 1500 mm and heights from 200 to 800 mm in 5 mm increments.
Not all variants listed here can be combined with each other. Use our Wildeboer configurator to easily check the available options.
Width:
200 mm - 225 mm - 250 mm - 275 mm - 300 mm - 325 mm - 350 mm - 375 mm - 400 mm - 450 mm - 500 mm - 550 mm - 600 mm - 650 mm - 700 mm - 750 mm - 800 mm - 850 mm - 900 mm - 950 mm - 1000 mm - 1050 mm - 1100 mm - 1150 mm - 1200 mm - 1250 mm - 1300 mm - 1400 mm - 1500 mm
Height:
200 mm - 225 mm - 250 mm - 275 mm - 300 mm - 325 mm - 350 mm - 375 mm - 400 mm - 450 mm - 500 mm - 550 mm - 600 mm - 650 mm - 700 mm - 750 mm - 800 mm
Housing design:
Galvanized steel
Damper blade design:
With galvanized steel frame - Galvanized steel metal casing
Limit switch:
Without limit switch - Closed - Open - Open/closed
Triggering temperature:
70
Smoke detection:
With OR32 trigger device - With OR4 smoke detector
Installation type:
in solid wall - in solid ceiling - in metal stud wall - on solid wall - away from solid wall - away from metal stud wall - away from solid ceiling - in solid ceiling - in solid timber wall - in solid wooden ceiling - in shaft wall - in fire/safety partition wall - in wall in timber frame construction - in ceiling in timber frame construction - in ceiling with steel frame - in base on solid ceiling - on base on solid ceiling
Installation variant:
With mineral wool - With mortar - With partial mortar filling - With square installation subframe ER1 - With square installation subframe ER3 - With square installation subframe ER2 - With square mounting frame AR1 - With square mounting frame AR2 - With square installation subframe ER8 - With flexible partition
Drive type:
Thermal mechanical with holding magnet - motorized 24 V - motorized 230 V
Product pictures
Media & Downloads
Installation and mounting subframes
- made of calcium silicate
- for simplified dry installation flexible walls cladded on both sides in shaft walls with or without metal stud
- Length of the fire damper: L = 400 mm, L = 500 mm
- made of calcium silicate for flexible walls cladded on both sides and for shaft walls with or without metal stud.
- Length of the fire damper: L = 355 mm
- made of calcium silicate
- for dry installation in wooden walls and wooden ceilings and for ceilings with steel frames
- Length of the fire damper: L = 400 mm, L = 500 mm
- made of calcium silicate for direct screwing on rigid walls and ceilings.
- Particularly well-snited for restoring missing fire dampers.
- Length of the fire damper: L = 346 mm
Electrical spring return actuator
- Default actuator of FK90
- Default actuator of FR90 to DN 315
- Runtime: Opening ≈ 60 s, closing ≈ 21 s.
- CLOSED/OPEN position indicators via limit switches
FAQ
The 92 series fire dampers are maintenance-free. Due to their design and the materials used, such as the complete encapsulation of the actuator mechanics, the thermal release device, the motorized actuators, etc., they can do without ongoing maintenance work to maintain their function. Periodic lubrication, for example, is not required. Maintenance is thus limited to functional checks (triggering and reopening of the fire dampers) or repair measures in the event of damage. Hygienic cleaning must be carried out as part of the overall cleaning of the ventilation and air-conditioning system or as required.
Due to the fact that the system is maintenance-free, functional checks may also be carried out remotely. This can be carried out particularly easily and economically via the Wildeboer BS2 communication system for fire dampers with automatic calendar control.
Overflow openings ensure the flow of air between two nearby rooms, e.g. for the ventilation of interior corridors and rooms or for air supply. If overflow openings are provided in fire-resistant walls or ceilings, it must be possible to close them properly. Fire dampers with a smoke release device without connection to a ventilation duct are used here. In the event of a fire, they close the opening and thus prevent the spread of fire and smoke. With the FK90 and FR90 fire damper in combination with OR4 or the OR32 smoke release device, Wildeboer offers solutions with the necessary general type approval from the German Institute for Building Technology, which is required for use in Germany.
