Dampers | Back Draft Dampers
Backdraft dampers are designed to allow airflow in one direction and prevent reverse airflow, and can be used for both intake and exhaust applications in HVAC systems. Backdraft dampers may be opened by air pressure differential and closed by gravity (hence the common name gravity dampers), that is, the system pressure and flow operates the damper, or motorized with an electric or pneumatic actuator for a greater degree of positive control. Adjustable and removable counterweights allow for calibration of damper operation. Our round and square/rectangular backdraft damper line below provide effective, energy-saving solutions for the medium pressure and flow levels commonly found in commercial HVAC systems.
| SHM-70 |
| Blade Style: |
Medium Duty Extruded |
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| Max Single Section: |
40" x 48" |
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Model SHM-70 is a standard performance gravity operated backdraft damper for use in light to medium duty commercial HVAC applications. Backdraft dampers are used in systems to pass airflow in one direction and to prevent airflow in the... Read More »
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| SHM-80 |
| Blade Style: |
Heavy Duty Extruded |
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| Max Single Section: |
48" x 52" |
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Model SHM-80 is a high performance gravity operated backdraft damper for use in medium to heavy duty commercial and light industrial HVAC applications. Backdraft dampers are used in systems to pass airflow in one direction and to prevent... Read More »
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| BRL |
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| Max Single Section: |
48" x 96" |
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| SHM |
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| Max Single Section: |
36" x 72" |
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SHN/SHL/SHC
SHN (non-linked)/ SHL (Dual Tie-Bar)/ SHC (Dual Tie-Bar & counter weights) |
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| Max Single Section: |
36" x 72" |
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| Blade Gauge: |
.025'' Alum. |
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| SHF |
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| Max Single Section: |
30" x 24" |
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RBD
Butterfly |
| Blade Style: |
Round Backdraft Damper |
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| DVD-R |
| Blade Style: |
Single - Round |
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| Max Single Section: |
24" dia. |
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