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| Item | Motorized Fire/Smoke Damper |
| Actual Damper Sz. Dia. | 17 7/8" |
| Blade | 14 ga. |
| Blade Material Thickness | 14 ga. |
| Blade Seal Material | Silicone |
| Blade Type | Butterfly |
| Closure Type | Motorized |
| Damper Shape | Round |
| Damper Type | Dynamic |
| Depth | 15 5/8" |
| Finish | Galvanized |
| Fire Rated | 1.5 hrs. |
| For Air Type | Emergency Smoke |
| For Duct Shape | Round |
| For Nominal Duct Diameter | 18" |
| Frame | 20 ga. |
| Frame Material Thickness | 20 ga. |
| Frame Thickness | 20 ga. |
| Free Area | 216 sq. in. |
| Includes | Factory Mounted Actuator |
| Material | Steel |
| Max. Air Velocity | 3000 FPM |
| Max. Temp. | 350°F |
| Max. Velocity | 3000 FPM |
| Motor Included | Yes |
| Mounting Type | Horizontal/Vertical |
| Nominal Duct Dia. | 18" |
| Overall Dia. | 17 7/8" |
| Overall Height | 17 7/8" |
| Overall Length | 16" |
| Overall Width | 15 5/8" |
| Phase | 1 |
| Pressure Differential Max. | 4 in. wg |
| Rough Opening Dia. | 18" |
| Rough Opening Shape | Round |
| Rough Opening Width | 18" |
| Seals | Extruded Silicone Rubber Blade |
| Shape | Round |
| Standards | CSFM, IBC, NFPA 80, 90A, 92, 101, 105, UL 555S |
| Ship weight (kg) | 14.985 |
| Ship height (cm) | 45.4 |
| Ship length (cm) | 40.64 |
| Ship width (cm) | 39.69 |
| HS code | 8481809050 |
| Country of Origin | US |
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