Life Safety Dampers
Combination Fire & Smoke Damper
Standard Model: FSD – M – R – A
A combination fire & smoke damper is used when a barrier is both rated for fire resistance as well as designed to restrict the transfer of smoke and will meet both the fire damper and smoke damper requirements. So Combination fire/smoke dampers are available if a smoke barrier is desired at the same location as a fire barrier.
Product Description
A combination fire & smoke damper is used when a barrier is both rated for fire resistance as well as designed to restrict the transfer of smoke and will meet both the fire damper and smoke damper requirements. So Combination fire/smoke dampers are available if a smoke barrier is desired at the same location as a fire barrier.
They are commonly used in HVAC penetrations where a wall or ceiling or floor requires both smoke and fire dampers. When smoke is detected they close (via smoke detector) or by heat detection (via duct temperature). Whereas fire dampers require fusible links there are fire/smoke dampers that have electric heat release devices. These are resettable and allow the closure of the damper to be controlled rather than slamming shut causing pressure problems within the HVAC system.
Fire dampers and smoke dampers are an essential and integral part of a buildings passive fire protection system. As has been seen smoke and fire dampers fulfil very similar roles and are put in similar locations. They are both designed to prevent ducting becoming a weak point in a buildings fire safety provision. Essentially they are louvered vents or shutters placed within ductwork which under normal circumstances allows air through but in the event of a fire they shut. As with any building system, the regular maintenance and inspection is imperative to ensure proper operation.
Standard Construction
● Frame: 1.6mm (16 G) galvanized steel i nterlocking hat section channel frame construction
● Blades: 1.6mm (16 G) galvanized steel 3 V groove
● Sleeve: 1.0mm (20 G) galvanized construction
● Closure Device: Electric Actuator or Fusible Link with closure temperature of 165° F ( 74° C). Others are available
● Bearings: Brass bushing for friction free operation
● Axial: 16mm Ø MS Steel
● Linkage: Stainless Steel concealed in channel frame
● Blade Seal: Mechanically fixed Silicon on “V” groove blade
● Jamb Seals: Stainless Steel