FSD-311V : Combination Fire Smoke Damper
FSD-311V : Combination Fire Smoke Damper
The FSD-311V is a vertical-blade combination fire/smoke damper featuring airfoil blade construction for enhanced aerodynamic performance and reduced pressure drop. Designed for installation in walls or partitions, it supports efficient integration into vertical duct runs. With airflow and leakage ratings in either direction, the FSD-311V delivers dependable life safety protection while maintaining design flexibility and code compliance.
Product Highlights
| Application |
Traditional In-Wall
|
|---|---|
| Blade Type |
Airfoil (Vertical)
|
| Fire Resistance Rating |
1-1/2 Hour
|
| Leakage Class |
I
|
| Maximum Pressure Rating (in. wg.) |
4
|
| Maximum Velocity (fpm) |
4,000
|
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