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| Type of Product | Backdraft Damper |
| Country of Origin | USA |
| UNSPSC Code | 30151801 |
| Mounting Style | Flush Mount |
Type of Product |
Backdraft Damper |
Country of Origin |
USA |
UNSPSC Code |
30151801 |
Mounting Style |
Flush Mount |
Part No |
3HHR3 |
Item Code |
3HHR3 |
Maximum Air Velocity |
2000 fpm |
Flange Width |
1-3/8 inch |
Free Area |
5.3 sq ft |
Rough Opening Width |
30 inch |
Blade Material |
Aluminum |
Air Direction |
Horizontal |
Rough Opening Length |
30 inch |
Rough Opening Shape |
Square |
Switch Action |
Normally Closed |
Number of Panel |
1 |
Frame Depth |
1-5/8 inch |
Mounting position |
Horizontal Vertical |
Flange Type |
Front Flange |
Maximum Pressure |
25.4 mm wc |
Seal Material |
Felt |
Mounting Location |
Ceiling |
Fan Diameter |
30 inch |
Overall Height |
32 Inch |
Overall Width |
32 inch |
Frame Material |
Aluminum |
Blade Thickness |
26 ga |
Mounting Hole Diameter |
1/4 inch |
Open Depth |
5 inch |
Tie Rod Material |
Galvanized Steel Frame and Tie Rods |
Mounting Hole Diameter (Φmm) |
6.35 mm |
Overall Height (cm) |
81.28 cm |
Overall Width (mm) |
812.8 mm |
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