• Conaire

Fire Damper

Caire Consult offers a Fire Damper, Model CFD. These are required by all building codes to maintain the required fire resistance ratings of walls, partitions, and floor when they are penetrated by air ducts or other ventilation openings. One of the basic requirements of building fire protection as required by all building codes is the compartmentation or division of buildings using fire rating walls, floors, or other partitioning methods. This compartmentation is intended to contain any fire to the compartment of the fire origin and thereby minimise damage to property and protect the lives of people living and/or working in the building. A duct or ventilation opening in any of the fire rated partitions would permit a fire to spread from the compartment of origin to adjoining compartments or spaces. Fire dampers are installed in these ducts or ventilation openings. Upon detection of heat these dampers close automatically (usually the melting of a UL stamped fusible link at 74°C or through thermal cut-off and solenoid) blocking the opening and thus preventing the spread of fire into the adjoining compartment. The dampers are made of heavy gauge galvanised steel having multi blade construction. The blades are fitted with chrome plated shafts and self lubricated phosphorus bronze bushes. The dampers are also provided with jamb seal (compression type) on sides to prevent spread of smoke and fire. The blades of the damper are held in the 'open' position by a high tensile spring. The fire dampers come standard with either fuse link or solenoid. They are also available with limit switch or micro switch to provide the feedback of blades' position.