Static Curtain Fire Dampers
Series: FD
The FD series of 1-1/2 & 3 hour rated static curtain fire dampers are UL, ULC & California State Fire Marshal listed dampers, available for either vertical or horizontal mount. Static rated dampers are used in duct systems or penetrations where there is no or negligible airflow when the damper closes (i.e. Fans Off Systems)
Dynamic Curtain Fire Dampers
Series: FDD
The FDD series of 1-1/2 & 3 hour rated dynamic curtain fire dampers are UL, ULC & California State Fire Marshal listed dampers, available for either vertical or horizontal mount. Dynamic rated dampers are approved for use in HVAC systems where the air handling units will stay running during a fire.
Multiblade Static Fire Dampers
Series: FD-MB
The FD-MB Series of static fire dampers is available in 1-1/2 & 3 hour ratings and carry listings with UL, ULC & California State Fire Marshal. The FD-MB Series of multibladed dampers are available in standard 3V blades as well as Airfoil shaped blades for superior pressure drop performance, and are acceptable for use in 'Fans Off' systems
Multiblade Dynamic Fire Dampers
Series: FDD-MB
The FDD-MB Series of static fire dampers is available in 1-1/2 & 3 hour ratings and carry listings with UL, ULC & California State Fire Marshal. The FD-MB Series of multibladed dampers are available in standard 3V blades as well as Airfoil shaped blades for superior pressure drop performance, and are acceptable for use as part of an engineered smoke control system in which the fans remain on during a fire.
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