FSDR-511 : Round Combination Fire Smoke Damper
FSDR-511 : Round Combination Fire Smoke Damper
The FSDR-511 is a round combination fire/smoke damper with round-style blades, engineered for streamlined performance in round duct applications. Designed for installation in walls, floors, or partitions, it integrates easily into circular duct systems without the need for transitions. With airflow and leakage ratings in either direction, the FSDR-511 delivers dependable life safety protection while preserving system efficiency and layout flexibility.
Product Highlights
| Application |
Traditional In-Wall
|
|---|---|
| Blade Type |
Round
|
| 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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