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Fire Smoke Damper
Fire Smoke Damper
Conaire offers a range of Fire Smoke Damper. The range comprises,
CLASS I 90 min fire rating with Class I leakage as per UL-555/555S
These dampers are made of heavy gauge galvanised steel having multi blade construction. The blades are fitted with chrome plated shafts and self lubricated phosphorous bronze bushes. The dampers are also provided a with jamb seal (compression type) on sides and blade edge to prevent spread of smoke & fire.
These are motorised dampers with a pair of manually resettable, fixed setting, 0 thermostats mounted in the air stream, with cut-offs at 74 C and 177 C causing the damper to close just below 74 C. Depending on demand from the smoke control system it can be opened/closed with a secondary temperature override at 177 C.
Available with UL873 listed spring return electric actuator. These fire smoke dampers are available with a integral sleeve of length 406/535 mm suitable for 4/9 inches wall mounting.
CLASS II 90 min fire rating with class II leakage as per UL-555/555S
These dampers are made of heavy gauge galvanised steel having multi blade construction. The blades are fitted with chrome plated shafts and self lubricated phosphorous bronze bushes. The dampers are also provided with jamb seal (compression type) on sides to prevent the spread of smoke & fire.
These are motorised dampers with a UL stamped thermal cut-off mounted in the air stream, which fuses at 74 C and causes the damper to close just below 74 C, thereafter, it can be opened/closed from the smoke control system.
Available with either spring return electric or pneumatic actuator.