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Dampers | Fire and Smoke Dampers

Model Blade Style Rating 1½HR or 3HR Dynamic Static Mounting Min Size W x H Max Single Section W xH Class Blade Conf. Blade Width Blade Gauge Frame Width
471
(Corridor)
Blade Style: V-Blade
Rating: N/A
Dynamic/Static: Dynamic
Mounting: H/V
Min Size: 12" x 9"
Max Single Section: 24" x 24"
Class: 1
Blade Config: opposed
Blade Width: 6.5"
Blade Gauge: 16
Frame Width: 4-5/16"
Details
472
(Corridor)
Blade Style: V-Blade
Rating: N/A
Dynamic/Static: Dynamic
Mounting: H/V
Min Size: 12" x 9"
Max Single Section: 24" x 24"
Class: 2
Blade Config: opposed
Blade Width: 6.5"
Blade Gauge: 16
Frame Width: 4-5/16"
Details
771
Blade Style: V-Blade
Rating: 1-1/2
Dynamic/Static: Dynamic
Mounting: H/V
Min Size: 8" x 6"
Max Single Section: 36" x 48"
Class: 1
Details
771-3
Blade Style: V-Blade
Rating: 3
Dynamic/Static: Dynamic
Mounting: H/V
Min Size: 8" x 6"
Max Single Section: 36" x 36"
Class: 1
Blade Config: opposed
Blade Width: 6"
Blade Gauge: 16
Frame Width: 4-5/16"
Details
771-OP
(Out of Wall)
Blade Style: V-Blade
Rating: 1 1/2 & 3
Dynamic/Static: Dynamic
Mounting: H/V
Min Size: 8" x 10"
Max Single Section: 36" x 42"
Class: 1
Blade Config: opposed
Blade Width: 6"
Blade Gauge: 16
Frame Width: 4-5/16"
Details
772
Blade Style: V-Blade
Rating: 1-1/2
Dynamic/Static: Dynamic
Mounting: H/V
Min Size: 6" x 6"
Max Single Section: 36" x 48"
Class: 2
Details
772-3
Blade Style: V-Blade
Rating: 3
Dynamic/Static: Dynamic
Mounting: H/V
Min Size: 6" x 6"
Max Single Section: 36" x 36"
Class: 2
Blade Config: opposed
Blade Width: 6"
Blade Gauge: 16
Frame Width: 4-5/16"
Details
772-OP
(Out of Wall)
Blade Style: V-Blade
Rating: 1-1/2 & 3
Dynamic/Static: Dynamic
Mounting: H/V
Min Size: 8" x 10"
Max Single Section: 36" x 42"
Class: 2
Blade Config: opposed
Blade Width: 6"
Blade Gauge: 16
Frame Width: 4-5/16"
Details
772M
Blade Style: V-Blade
Rating: 1-1/2
Dynamic/Static: Dynamic
Mounting: H/V
Min Size: 8" x 6"
Max Single Section: 36" x 48"
Class: 2
Blade Config: oppsed
Blade Width: 6"
Blade Gauge: 16
Frame Width: 4-5/16"
Details
772M-3
Blade Style: V-Blade
Rating: 3
Dynamic/Static: Dynamic
Mounting: H/V
Min Size: 8" x 6"
Max Single Section: 36" x 36"
Class: 2
Details
781
Blade Style: Airfoil
Rating: 1-1/2
Dynamic/Static: Dynamic
Mounting: H/V
Min Size: 12" x 8"
Max Single Section: 32" x 48"-V / 32" x 36"-H
Class: 1
Blade Config: opposed
Blade Width: 6.5"
Blade Gauge: 20/14
Frame Width: 4-5/16"
Details
781-3
Blade Style: Airfoil
Rating: 3
Dynamic/Static: Dynamic
Mounting: H/V
Min Size: 12" x 8"
Max Single Section: 32" x 48"-V / 32" x 36"-H
Class: 1
Details
782
Blade Style: Airfoil
Rating: 1-1/2
Dynamic/Static: Dynamic
Mounting: H/V
Min Size: 8" x 8"
Max Single Section: 32" x 48"-V / 32" x 36"-H
Class: 2
Blade Config: opposed
Blade Width: 6.5"
Blade Gauge: 20/14
Frame Width: 4-5/16"
Details
782-3
Blade Style: Airfoil
Rating: 3
Dynamic/Static: Dynamic
Mounting: H/V
Min Size: 8" x 8"
Max Single Section: 32" x 48"-V / 32" x 36"-H
Class: 2
Details
Operation and Maintenance Details