Fire Dampers – UL 555  Multi Blade Fire Dampers 1-1/2 Hrs Fire Rating
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LIFE SAFETY DAMPERS
MULTI BLADE FIRE DAMPERS – UL 555

 

Multi Blade Fire Damper – UL 555 – 1.1/2 Hrs Rated

 

Model QFD-GB-F-20A
Construction Galvanized Steel
Blade Multiple Blades
Fire Rating 1 -1/2 Hrs as per UL-555
Max Velocity 2000FPM
Max Pressure 4″ w.g
Airflow Direction Either
Fusible Link 165 ” F (74 “C)
Installation V/H
Operation Manual (with Quadrant)

BETEC CAD.‘s B-20 Series Multiple blades Fire damper is high performance UL-555 classified with 1.1/2Hrs Fire rating. May be installed vertically or horizontally ( with blades running horizontally) and is rated for fire resistance in either direction.

 

Multi Blade Fire Damper – UL 555 – 1.1/2 Hrs Rated– Stainless Steel

 

Model QFD-SB-F-20A
Construction Stainless Steel
Blade Multiple Blades
Fire Rating 1 -1/2 Hrs as per UL-555
Max Velocity 2000FPM
Max Pressure 4″ w.g
Airflow Direction Either
Fusible Link 165 ” F (74 “C)
Installation V/H
Operation Manual (with Quadrant)

BETEC CAD.‘s B-20 Series Multiple blades Fire damper is high performance UL-555 classified with 1.1/2Hrs Fire rating. May be installed vertically or horizontally ( with blades running horizontally) and is rated for fire resistance in either direction.

 
Size Limitation For 1.1/2 Hrs Fire RatedMultiple Blades Fire Damper
Module Width x Height Mounting Position
Single Min. 6″ x 6″ H
Single Max. 36″ x 36 H

  Material   Damper Operation  
projects/betec/ CAD Model Frame Blade Standard Optional
MFD-GB-F-20A GI GI FC FO
MFD-SB-F-20A SS SS FC FO
MFD-SGB-F-20A SS GI FC FO
MFD-GSB-F-20A GI SS FC FO