Airfoil Blade Combination Fire & Smoke Dampers
The FSD-AF series features the superior pressure drop performance of an airfoil blade design. These dampers are UL, ULC and California State Fire Marshal listed as both a UL555 fire and UL555S smoke damper. Available in both 1-1/2 and 3 hour fire ratings, the FSD-AF series is available with UL555S Class I or Class II leakage ratings and a variety of electric and pneumatic actuators
- Features Airfoil Shaped Blades for Superior Pressure Drop Performance
- Available in 1-1/2 or 3 Hour fire ratings, with either UL Class I or Class II leakage.
- Available for both vertical and horizontal mount.
- Full range of factory sleeve gauges and lengths available
- Available with 24VAC, 120VAC or 230VAC electric actuators or Pneumatic actuators
- Provided with a resettable heat responsive thermostat (STO/R). Dual thermostat override capable (DTO/R).