Damper, Roof Mount, Exh Only, 11 1/2 Sq
| Item | 11.5"H-W 4.5"L Aluminum Backdraft Damper |
|---|---|
| Type | Exhaust, Roof Mount |
| Damper Size (In.) | 9-1/2 x 9-1/2 |
| Overall Size (In.) | 11-1/2 x 11-1/2 |
| Flange Width (In.) | 1 |
| Includes | Pre-Punched Conduit Hole Knock-Out; Felted Edges for Quiet Operation |
| Outside Flange (In.) | 11-1/2 x 11-1/2 |
| Construction Material | Aluminum Blades, G-90 Galvanized Steel Frame, Nylon Bushings and Galvanized Steel Tie Rods., Stainless Steel Pivot Pins |
| Max. Velocity (FPM) | 2,000 fpm |
| Overall Width | 11-1/2 in |
| Overall Length | 4-1/2 in |
| Overall Height | 11-1/2 in |
| Switch Action | Normally Closed |
| Rough Opening Length | 10 in |
| Overall Diameter | Not Applicable |
| Maximum Pressure | 1 in wc |
| Frame Material Grade | G-90 |
| Number of Panels | 1 |
| Free Area | 0.4 sq ft |
| Frame Depth | 2 in |
| Rough Opening Shape | Square |
| Single Acting/Double Acting | Single Acting |
| Rough Opening Diameter | 10 in |
| Frame Material | Galvanized Steel |
| Rough Opening Width | 10 in |
| Frame Material Thickness | 20 ga |
| For Duct Shape | Square |
| Flange Type | Rear Flange |
| Closure Velocity Rating | 2,000 fpm |
| Blade Material | Aluminum |
| Counterbalanced | No |
| Frame Less Flange | 9.5 |
| For Fuel Type | Not Applicable |
| Fusible Link Temperature | Not Applicable |
| Closure Type | Gravity |
| Blade Type | Flat Blade |
| Pressure Drop @ 1000 fpm (AMCA 5.2) | Not Applicable |
| Fits Fan Diameter | 10 in |
| Blade Seal Material | Felt |
| Flange Width | 1 in |
| Mounting Position | Horizontal |
| Damper Application | Backdraft |
| ACMA Leakage Class | Not Applicable |
| Seal Material | Not Applicable |
| Maximum Air Velocity | 2,000 fpm |
| Blade Orientation | Parallel Blades |
| For Nominal Duct Diameter | Not Applicable |
| Damper Type | Static |
| Maximum Ambient Temperature | 180 deg F |
| Airflow Direction | Vertical |
| Country of Origin (subject to change) | United States |
| Package Quantity | 1 |