Trox Technik FKR-EU - Page 5

Fire dampers
General information FKR-EU
1
Functional description
In the event of a fire, fire dampers shut
automatically to prevent the propagation
of fire and smoke through ductwork to adjacent
designated fire compartments. In the event of a
fire, the damper is triggered at 72 °C or at 95 °C
(use in warm air ventilation systems) by a fusible
link. The release mechanism is accessible and
can be tested from the outside. Both regular
limit switches and explosion-proof limit
switches are available for zones 1 and 2
(gases, mists, vapours) and for zones 21 and 22
(dusts) to indicate damper blade positions.
Function
Construction
with fusible link
K4 – 1.1 – 5
Schematic illustration of FKR-EU-FL with fusible link
①
②
③ ④
⑤⑥⑦⑧
①Casing
②Damperbladewithseal
③Fusiblelink
④Thermalreleasemechanism
⑤Handle
⑥TravelstopforCLOSEDposition
⑦Releasetab
⑧Flange
03/2017 – DE/en
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