FR90 fire damper for overflow openings (Ü-FR)
In overflow openings, the FR90 fire damper in combination with the OR4 or OR32 smoke detector and protective grilles ensures early closure of the overflow opening. The system solution closes reliably when smoke is detected or when the trigger temperature is reached. This effectively prevents the spread of smoke even at temperatures below the trigger temperature of the fire damper.
Technical details
- Compact system solution consisting of a maintenance-free fire damper with OR4 or OR32 smoke detector, housing extension and protective grille
- Ideal for use in confined installation situations
- Wide range of installation situations tested for the FR90 fire damper
- Approval or general type approval from the DIBt available
- Time-saving installation thanks to factory pre-assembled/pre-wired OR4 smoke release device
Zertifikate
Product details
The FR90 fire damper in combination with the OR4 or OR32 smoke release device and protective grilles on both sides is used as a system solution especially for closing overflow openings. The DIBt-approved combination is used as a closure in fire-resistant interior walls or ceilings if openings are required for the purpose of air flow.
FR90 for overflow openings with OR4 or OR32 smoke release device
OR4 or OR32 smoke release devices are optionally available pre-assembled on the FR90 fire damper for closing overflow openings. OR4 or OR32 are protected in the housing extension. The right solution can therefore be selected for a wide range of installation situations.
Universal installation options
The FR90 fire damper has a large number of tested installation situations. The option of positioning the actuator at the top, bottom or side of the fire damper increases installation flexibility. The overflow opening system solution with FR90 really comes into its own in tight installation situations thanks to its compact design. The OR4 smoke release device can be ordered pre-assembled at the factory. This saves users considerable time when installing the system solution.
Product labelling of the Ü-FR overflow opening solution
The combination solution for overflow openings has DIBt approval (general type approval). The FR90 fire damper is labelled with both a CE marking and an EPD. The FR90 has also been awarded a hygiene certificate by an independent hygiene institute.
Technical specifications
Not all variant values listed here can be combined with each other. Use our Wildeboer configurator to easily check the design options.
Nominal size
DN100 - DN125 - DN140 - DN160 - DN180 - DN200 - DN224 - DN250 - DN280 - DN315 - DN355 - DN400 - DN450 - DN500 - DN560 - DN630 - DN710 - DN800
Damper blade design:
Without metal casing - With galvanised steel frame
Housing design:
Galvanised steel
Limit switch:
Without limit switch - Closed - Open - Open/closed
Tripping temperature:
70°C
Smoke release device:
With OR4 basic - With OR4 pro - With OR32, without additional modules - With OR32, with MC and relay module
Installation type:
in solid wall - in solid ceiling - in metal stud wall - in fire/safety partition wall - in wall of timber frame construction - in wall of solid timber construction - in ceiling of timber frame construction - in ceiling of solid timber construction - in ceiling with steel frame - in plinth on solid ceiling - on solid wall - on shaft wall - on solid ceiling - on plinth on solid ceiling - remote from solid wall - remote from metal stud wall - remote from solid ceiling
Installation variant:
with mineral wool - with mortar - with partial mortar lining - with rectangular mounting frame RE100 - with rectangular mounting frame RE150 - with round mounting frame RR100 - with round mounting frame RR150 - with rectangular mounting frame RH100 - with rectangular mounting frame RH150 - with rectangular mounting frame AE - with rectangular mounting frame ER6 - with rectangular front mounting frame RV - with soft bulkhead
Actuator type:
thermal mechanical with holding magnet - motorised 24 V - motorised 230 V
Product pictures
Media & Downloads
Electrical spring return actuator
Installation and mounting subframes
- For simplified installation in tapping drill holes in rigid walls and ceilings as well as in metal stud walls with cladding on both sides
- Only until DN 315
For simplified, also multiple installation in rigid walls and ceilings as well as in metal stud walls with cladding on both sides
As sliding ceiling connection when ceiling subsidence until 40 mm are to be expected and installation in metal stud walls with cladding on both sides
For bolting to rigid walls and ceilings as well as on walls with cladding on one side (shaft walls), with or without metal studs.
For connection to ventilation ducts with fire resistance period. Installation remote from rigid walls and ceilings as well from metal stud walls.
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.
