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| Type of Product | Backdraft Damper |
| Blade Type | Flat Blade |
| Country of Origin | USA |
| UNSPSC Code | 30151801 |
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Type of Product |
Backdraft Damper |
Blade Type |
Flat Blade |
Country of Origin |
USA |
UNSPSC Code |
30151801 |
Part No |
53DR11 |
Item Code |
53DR11 |
Maximum Air Velocity |
2500 fpm |
Flange Width |
1-1/2 inch |
Free Area |
2.5 sq ft |
Rough Opening Width |
22.5 inch |
Blade Material |
Aluminum |
Air Direction |
Horizontal |
Rough Opening Length |
22-1/2 inch |
Rough Opening Shape |
Square |
Damper Type |
Static |
Maximum Ambient Temperature |
180 °F |
Switch Action |
Normally Closed |
Number of Panel |
1 |
Frame Depth |
2-1/2 inch |
Mounting position |
Vertical |
Flange Type |
Rear Flange |
Rough Opening Diameter |
22-1/2 inch |
Maximum Pressure |
25.4 mm wc |
Seal Material |
Felt |
Mounting Location |
Wall |
Overall Length |
5-3/4 inch |
Fan Diameter |
20 inch |
Orientation |
Parallel Blades |
Overall Height |
25 Inch |
Overall Width |
25 inch |
Frame Material |
Galvanized Steel |
Blade Thickness |
26 ga |
Frame Opening Height |
24 inch |
Overall Diameter |
25 inch |
Mounting Hole Diameter |
1/4 inch |
Open Depth |
5-3/4 inch |
Series |
556 |
Tie Rod Material |
Galvanized Steel Frame and Tie Rods |
Overall Length (cm) |
14.61 cm |
Mounting Hole Diameter (Φmm) |
6.35 mm |
Overall Height (cm) |
63.5 cm |
Overall Width (mm) |
635 mm |
Overall Diameter (mm) |
635 mm |
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