Curtain Fire Damper

Fire dampers are designed and installed in ventilation systems, ducts, and air transfer openings. Their purpose is, once the heat from the fire or smoke activates it, it will close. Once the damper is closed, it will cut off and interrupt the airflow into adjacent spaces stopping flames from spreading, thus creating a fire barrier. The curtain style fire damper for use in HVAC systems that remain in operation during a fire. Fire dampers are used for the protection of openings in walls, partitions, or masonry floors with fire resistance ratings of less than 3 hours and shall have a 1 1/2 hour fire protection rating. The DIBD2 can be installed vertically in walls or horizontally in masonry floors and is rated for airflow in either direction.