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| Item | Fire Damper |
| Application | Fire |
| Blade Type | Butterfly |
| Closure Type | Spring |
| Damper Depth | 13 5/8" |
| Damper Dia. | 3 7/8" |
| Damper Item | Fire Damper |
| Damper Shape | Round |
| Damper Type | Dynamic |
| Finish | Galvanized |
| Fire Rating | 1.5 hrs. |
| For Duct Shape | Round |
| For Nominal Duct Diameter | 4" |
| Frame Depth | 14" |
| Frame Material Thickness | 20 ga. |
| Free Area | 0.1 sq. ft. |
| Includes | Stainless Steel Closure Spring |
| Material | Steel |
| Material Thickness | 20 ga. |
| Max. Air Velocity | 2000 FPM |
| Mounting Type | Dynamic, Horizontal, Vertical |
| Nominal Duct Dia. | 4" |
| Overall Dia. | 3 7/8" |
| Overall Length | 14" |
| Rough Opening Dia. | 4" |
| Rough Opening Shape | Round |
| Rough Opening Width | 4" |
| Shape | Round |
| Standards | CSFM, IBC, NFPA 80, NFPA 90A, 101, NYC MEA, UL 555 |
| Ship weight (kg) | 1.755 |
| Ship height (cm) | 12.95 |
| Ship length (cm) | 36.58 |
| Ship width (cm) | 13.97 |
| HS code | 8481809050 |
| Country of Origin | US |
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