Round Smoke Damper, 24V, 8-1/4 In. D
| Item | Round 7.9"dia Motorized Smoke Damper |
|---|---|
| Mounting Type | Vertical/Horizontal |
| Includes | Factory Mounted Actuator |
| Voltage | 24 V |
| Depth | 8-1/4 in |
| Material | Galvanized Steel |
| Damper Item | Motorized Smoke Damper |
| Hz | 60 |
| Damper Shape | Round |
| Blade | 14 ga |
| Phase | 1 |
| Actual Damper Sz. Dia. | 7-7/8 in |
| Frame | 20 ga |
| Pressure Differential Max. | 4 in wg |
| Max. Velocity | 3,000 fpm |
| Nominal Duct Dia. | 8 in |
| Free Area | 43.3 sq in |
| Standards | CSFM; IBC; NFPA 90A,92,101,105; UL 555S |
| Seals | Silicone Rubber |
| Max. Temp. | 350 Degrees F |
| Rough Opening Width | 8 in |
| Overall Height | 7-7/8 in |
| Overall Width | 8-1/4 in |
| For Nominal Duct Diameter | 8 in |
| Overall Diameter | 7-7/8 in |
| Mounting Position | Horizontal |
| Frame Material Thickness | 20 ga |
| Rough Opening Diameter | 8 in |
| Closure Type | Motorized |
| Airflow Direction | Horizontal, Vertical |
| Blade Orientation | Not Applicable |
| Damper Application | Smoke |
| Maximum Air Pressure | 4 in wg |
| Blade Material Thickness | 14 ga |
| Overall Length | 8-1/8 in |
| Blade Seal Material | Silicone |
| Pressure Drop @ 1000 fpm (AMCA 5.2) | Not Applicable |
| Rough Opening Shape | Round |
| Closure Velocity Rating | 3,000 fpm |
| Counterbalanced | Not Applicable |
| Number of Panels | 1 |
| ACMA Leakage Class | 2 |
| Damper Type | Dynamic |
| Blade Type | Butterfly |
| Frame Material | Galvanized Steel |
| Frame Less Flange | 50.3 sq in |
| Blade Material | Galvanized Steel |
| Frequency | 60 Hz |
| Nameplate Voltage | 24V AC |
| Switch Action | Normally Closed |
| Includes Motor | Yes |
| Fusible Link Temperature | 350 deg F |
| For Duct Shape | Round |
| Flange Width | Not Applicable |
| Maximum Temperature Rating | Degrees F |
| For Air Type | Emergency Smoke |
| Jamb Seal Material | Not Applicable |
| Closure Pressure Rating | 4 in wc |
| Maximum Air Velocity | 3,000 fpm |
| Country of Origin (subject to change) | United States |
| Package Quantity | 1 |