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Fire Dampers UL-555
Products > Fire/Smoke Dampers
Fire Dampers - UL555
FD - GB 20 G-Galvanized Steel Construction
Curtain Blades, Static / Dynamic; Fire Rating : 1.1/2 Hr./ 3 Hrs.
Models: FD-GB-20A ; FD-GB-20B ; FD-GB-20AD ; FD-GB-20BD.
FD GB-20 Series is a high performance UL 555 Classified with 1.1/2 hr. / 3hr. rating Fire damper with Curtain blades, to ensure lowest resistance to airflow in HVAC systems with velocities to 2000 fpm (10.2 m/sec.) and 4” w.g. (1000Pa) may be installed vertically or horizontally for static application and vertically (with blades running horizontally) for dynamic application and is rated for fire resistance in either direction.
Fire Dampers - UL555 (without sleeve)
FD - GB 20 G-Galvanized Steel Construction
Curtain Blades, Static / Dynamic; Fire Rating : 1.1/2 Hr./ 3 Hrs.
Models: FD-GB-20A ; FD-GB-20B ; FD-GB-20AD ; FD-GB-20BD.
FD GB-20 Series is a high performance UL 555 Classified with 1.1/2 hr. / 3hr. rating Fire damper with Curtain blades, to ensure lowest resistance to airflow in HVAC systems with velocities to 2000 fpm (10.2 m/sec.) and 4” w.g. (1000Pa) may be installed vertically or horizontally for static application and vertically (with blades running horizontally) for dynamic application and is rated for fire resistance in either direction.
Sleeve should be installed by the contractor at site as per Betec cad recommendation.
Size Limitation |
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Module |
Width x Height |
Position |
Single Mn |
4" x 4" |
H/V |
Single Mx |
36" x 36" |
H/V |
Single Multiple Mx |
72" x 72" |
V |
Max. Factory assembly size: The sizes larger than the maximum single section, are required site assembly of the smaller sections. |
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