Rectangular fire dampers with a fire resistance of 120 minutes. When the temperature in the damper rises above 72 °C the fusible link will break and the damper will close. When closed, the expanding material around the fireblade will swell and assure a fire and smoke-tight seal against hot air and smoke. The thin blade is made out of fire resistant calciumsilicate and ensures a relatively high net opening in the damper. The CU-LT + MFUSP fire dampers have a manual operating mechanism with indication of the blade position.
Optionally, an end and begin of range switch FDCU MFUS can be added to the mechanism.
For mounting in flexible wall, option +IFW is required. This is a mounting frame that is pre-mounted onto the damper, and ensures its good working when mounted in a flexible wall.
Explanation
CU-LT = Rectangular fire damper
MFUSP = Mechanism
200 = Length damper
100 = Height damper