The fire dampers are manufactured in the following nominal
sizes: DN100, DN125, DN160, DN200. The fire dampers are
equipped with a thermal fuse mechanism ensuring the damper
switch to the safe position in case of reaching an ambient
temperature equal to or higher than 72°C. The fire dampers
allow using limit switches signalling closed position of the
damper blade (1 limit switch) or blades (in case of using
2 limit switches).
The casing is made from galvanised steel sheet; the fire damper
blade is made from a silicate cement board.
