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FIRE DAMPER ETS NORD FDMS 500 .80 EIS 60
Mechanical model (.80) equipped with “CLOSED” and “OPEN” limit switches. The fire damper can be fitted with two limit switches (microswitches) indicating the damper position as “CLOSED” and “OPEN”. The limit switches can be connected to the building automation system or a separate control system via wires supplied with the switch (cables up to 300 mm included in the series).
FDMS fire dampers are closure dampers for ventilation duct systems that prevent the spread of fire and smoke gases from one fire compartment to another by closing the ventilation duct at the fire compartment wall. In a fire situation, the damper flap automatically closes via a return spring. The return spring is activated when the fire fuse melts. The return spring is also activated when the reset button on the actuator is pressed to the base or when power supply to the actuator is interrupted.
The damper flap is equipped with a seal that prevents smoke leakage when the flap closes. In a fire situation, the damper flap seals against the surrounding fire tape. Fire dampers do not have a maintenance access panel. A separate maintenance access panel must be installed in the ventilation duct adjacent to the fire damper. The fire damper is equipped with a collar surrounding the damper casing. The collar has several mounting brackets for securing the fire damper to the wall.
Operating Conditions- Maximum air velocity 12 m/s, maximum pressure difference 2500 Pa
- The operation of the fire damper is independent of the direction of air flow and it can be installed vertically or horizontally
- FDMS fire damper is suitable for use in temperate climate zones according to standard EN 60721-3-3
- The damper is suitable for use in systems where no chemical, abrasive, or sticky particles are transported
- FDMS fire damper is suitable for installation in areas with temperatures ranging from -30°C to +50°C
- Circular fire dampers available in sizes Ř 100-630 mm
- CE marked in accordance with standard EN 15650
- Tested in accordance with standard EN 1366-2
- Fire rated in accordance with standard EN 13501-3+A1
- Fire resistance ratings EIS 45, EIS 60, EIS 90
- Body tightness class C, flap tightness class 2 according to standard EN 1751
- Corrosion resistance in accordance with standard EN 15650
- Classified as C10000 (open/closed cycle test) according to standard EN 15650
The damper body and circular connection are manufactured from hot-dip galvanized steel sheet, and the flap is made from asbestos-free mineral fiber sheet. Fasteners and springs are electro-galvanized. The fire damper is equipped with a brass thermal fuse.
This product description is an automated translation of the original Finnish description.