DFD-210 : Multi-Blade Fire Damper

DFD-210 : Multi-Blade Fire Damper

Model DFD-210 is a multi-blade, 3V dynamic-rated fire damper designed for installation in walls, floors, and partitions with fire-resistance ratings up to less than three hours. As a dynamic-rated damper, it is qualified for HVAC systems that remain operational during a fire event, providing reliable closure under airflow conditions while supporting code-compliant life safety performance. The 3V blade design also promotes low pressure drop and efficient system operation during normal conditions.

Product Highlights

Application
Traditional In-Wall
Closure Rating
Dynamic
Fire Resistance Rating
1-1/2 Hour
Material
Galvanized Steel
Maximum Velocity (fpm)
4,000
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Features

Actuator Blades Closure Device Frame Linkage
Standard
Optional

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Product Details

Blade Type

3V

Certifications

UL 555 (Listing #R13317)

AMCA Air Performance

California State Fire Marshal (CSFM) Listing #3225-0981:0103

CAN/ULC S112 Classified Fire Damper

Closure Temperature Options (F)

165°F

212°F

286°F

350°F

Codes

International Building Code (IBC)

National Fire Protection Association (NFPA 80, 90A, and 101)

Maximum Velocity (fpm)

4,000

Documents

Drawings

Media

Horizontal Fire Smoke Damper in a Non-Concrete Barrier

Life Safety Damper Installation

UL 555 Damper Fire Test

UL 555 Duct Impact Test

UL 555 Three-Sided Retaining Angle Installation

UL Floor/Ceiling Design I503