cartridge fire damper

The Circular fire dampers by SYSTEMAIR, is designed as a series of marked CE fire dampers that is accordance with EN 15650 and complies with the EI-S performance qualities. It has the capability to be installed into fire partition walls, or at the end of a duct in front of the valve. Plus, it is their standard that every fire dumpers are provided in a primary version, a microswitch or cover plates. Its design has the ability to set the fire damper to a close position when the thermal fuse breaks open and in the case of its closure, the blade will be in close position, assuring the damper can only be opened hand-operated but only those who are authorized can access it.