Circular fire dampers serving as a closure of air ducts in case of fire.
The fire dampers are designed for circular air ducts with a diameter of 200 - 630 mm.
The dampers are suitable for installation in all common building constructions and can be installed with the mounting axis in any position.
Activation of the damper in case of fire is ensured by a fusible link (type CFTH), which activates the closing mechanism at a temperature higher than 72 °C, by a servo drive (type BLF) or with a servo drive with thermoelectric fuse (type B(L)F(T)). The servo drive can be fitted to 24 V or 230 V.
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