MA19 Dynamic Fire Dampers

#MA19 Dynamic Fire Dampers

MA19 Dynamic Fire Dampers

1˝ Hour Rated Dynamic Airfoil Blade Fire Damper

Quick Specs

Depth:            5˝"

UL Classified: 1˝ Hour Fire Resistance

Certifications: Underwriters Laboratories, Inc.: 555

National Fire Protection Association: 80 & 90A

ICC's International Building Code

Orientation: Vertical or Horizontal

Frame Material:        16 ga. Galvanized Steel

Frame Type: Hat Channel

Blade Material:         20 ga. Double-Skinned Galvanized Steel (equal to 14 ga.)

Blade Action: Parallel

Axles: Square, Plated Solid Steel Stub

Bearings: Oil Impregnated Bronze

Linkage: Jamb

Stops: 18 ga. Galvanized Steel at Head and Sill

Jamb Seals: Stainless Steel

Actuator: Non-Motorized Spring Closure Mechanism

Fusible Link: 165°F


Fusible Link: 212°F (Vertical Only)

Sleeves: Various Depths and Gauges

Transitions: Round or Oval


2000 FPM, 4 in. wg.

4000 FPM, 4 in. wg.


Minimum Panel Size

Maximum Size


Single Panel

Multiple Panels

Single Panel


4" x 4"
(8" x 8" Frame)

32" x 48"

64" x 36"
32" x 72"

32" x 36"


6" Diameter
(8" x 8" Frame)

30" Diameter

34" Diameter

30" Diameter


6" x 6"
(8" x 8" Frame)

30" x 46"

62" x 34"
30" x 70"

30" x 34"


Customers Reviews

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