Motorized Fire Dampers–UL 555 3 Hrs Fire Rating
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LIFE SAFETY DAMPERS
MOTORIZED FIRE DAMPERS – UL555

 

Motorized Fire Damper – UL 555 – 3 Hrs Rated

 

Model MFD-GB-30A
Construction Galvanized Steel
Blade 3V – Single Skin
Fire Rating 3 Hrs. as per UL-555
Max Velocity 2000FPM
Max Pressure 4″ w.g
Airflow Direction Either
TRD 165 ” F (74 “C)
Installation V/H

BETEC CAD.’s B-30 Series Motorized Fire damper is high performance UL-555 classified with 3 Hrs Fire rating. May be installed vertically or horizontally (with blades running horizontally) and is rated for air flow in either direction.

 

Motorized Fire Damper – UL 555 – 3 Hrs Rated

 

Model MFD-SB-30A
Construction Stainless Steel
Blade 3V – Single Skin
Fire Rating 3 Hrs as per UL-555
Max Velocity 2000FPM
Max Pressure 4″ w.g
Airflow Direction Either
TRD 165 ” F (74 “C)
Installation V/H

BETEC CAD.’s B-30 Series Motorized Fire damper is high performance UL-555 classified with 3 Hrs Fire rating. May be installed vertically or horizontally ( with blades running horizontally) and is rated for air flow in either direction.

 

Motorized Fire Damper – UL 555 – 3 Hrs Rated

 

Model MFD-GB-31A
Construction Galvanized Steel
Blade 3V – Single Skin
Fire Rating 3 Hrs. as per UL-555
Max Velocity 2000FPM
Max Pressure 4″ w.g
Airflow Direction Either
TRD 165 ” F (74 “C)
Installation V/H

BETEC CAD.’s B-31 Series Motorized Fire damper is high performance UL-555 classified with 3 Hrs Fire rating. May be installed vertically or horizontally (with blades running horizontally) and is rated for air flow in either direction.

 

Size Limitation
Module Size: Width x Height Mounting Position
Single Max x Max. 24″ x 48″ H
Single Max x Max. 36″ x 36″ V/H
Single Max x Max. 48″ x 48″ V/H
Multiple Max x Max. 72″ x 72″ V/H
Single Max x Max. 144″ x 96″ V/H

  Material   Damper Operation  
projects/betec/ CAD Model Frame Blade Standard Optional
MFD-GB-20/31A GI GI FC FO
MFD-SB-20A SS SS FC FO
MFD-SGB-20A SS GI FC FO
MFD-GSB-20A GI SS FC FO

 

Round Spigot Suffix – R after the Model