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| Type of Product | Backdraft Damper |
| Country of Origin | USA |
| Flange Width | 1-1/2 inch |
| Blade Material | Aluminum |
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Type of Product |
Backdraft Damper |
Country of Origin |
USA |
Flange Width |
1-1/2 inch |
Blade Material |
Aluminum |
Maximum Ambient Temperature |
180°F |
Blade Type |
Flat Blade |
Mounting position |
Vertical |
Flange Type |
Rear Flange |
Blade Thickness |
26 ga |
Maximum Pressure |
25.4 mm wc |
Seal Material |
Felt |
Overall Length |
5-3/4 inch |
Mounting Location |
Wall |
Fan Diameter |
20 inch |
Free Area |
2.3² ft |
Overall Diameter |
23 inch |
Overall Height |
23 Inch |
Open Depth |
5-3/4 inch |
Part No |
4C559 |
Rod Material |
Galvanized Steel Frame and Tie Rods |
Rough Opening Width |
20.5 inch |
Overall Width |
23 inch |
Frame Material |
Aluminum |
Item Code |
4C559 |
Maximum Air Velocity |
2500 fpm |
Mounting Hole Diameter |
1/4 inch |
Series |
EAS |
Rough Opening Length |
20-1/2 inch |
Action Type |
Normally Closed |
Damper Type |
Static |
Number of Panel |
1 |
Frame Depth |
2-1/2 inch |
Rough Opening Diameter |
20-1/2 inch |
Orientation |
Parallel Blades |
Shape |
Square |
UNSPSC Code |
40101504 |
Air Flow |
Horizontal |
Frame Opening Height |
20 inch |
Frame Opening Width |
20 inch |
Overall Height (cm) |
58.42 cm |
Overall Length (cm) |
14.61 cm |
Mounting Hole Diameter (Φmm) |
6.35 mm |
Overall Width (mm) |
584.2 mm |
Overall Diameter (mm) |
584.2 mm |
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