Butterfly fire dampers

Protupožarne zaklopke proizvode se u sljedećim nazivnim veličinama: DN100, DN125, DN160, DN200, DN250. Protupožarne zaklopke opremljene su mehanizmom s toplinskim osiguračem koji osigurava prebacivanje zaklopke u sigurni položaj u slučaju postizanja temperature okoline jednake ili više od 72°C.
Protupožarne zaklopke omogućuju korištenje graničnih prekidača koji signaliziraju zatvoreni položaj lopatice zaklopke (1 granični prekidač) ili lopatica (u slučaju korištenja 2 granična prekidača). Kućište je izrađeno od pocinčanog čeličnog lima; lopatica protupožarne zaklopke izrađena je od silikatne cementne ploče.
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