Square fire dampers serving as a closure of air ducts in case of fire.
The fire dampers are designed for square air ducts with sizes 200x100 - 800x600 mm.
The dampers are suitable for installation in all common building constructions and can be installed in any position of the mechanism.
Activation of the damper in case of fire is ensured by a fusible link (type MFUSP), which activates the closing mechanism at temperatures higher than 72°C, or by a 24 V or 230 V actuator (type ONE/BFL(T)).
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