| Item | Ceiling/Roof Backdraft Dampers |
| Type | Roof Mount, Exhaust |
| Damper Size (In.) | 50 x 50 |
| Overall Size (In.) | 52 x 52 |
| Use w/Dayton Ventilators | 4HX90 |
| Outside Flange (In.) | 52 x 52 |
| Construction Material | Aluminum Blades, G-90 Galvanized Steel Frame, Nylon Bushings and Galvanized Steel Tie Rods., Stainless Steel Pivot Pins |
| Flange Width (In.) | 1 in |
| Includes | Pre-Punched Conduit Hole Knock-Out, Felted Edges for Quiet Operation |
| Max. Velocity (FPM) | 2,250 fpm |
| Overall Length | 4 1/2 in |
| Overall Height | 52 in |
| Overall Width | 52 in |
| Blade | Aluminum Blade w/ Felt Seal |
| Rough Opening Dims | 49 1/2 in x 50.5 in |
| Overall Diameter | Not Applicable |
| Rough Opening Width | 50.5 in |
| For Duct Shape | Square |
| Frame Depth | 2 in |
| Closure Velocity Rating | 2,250 fpm |
| Fusible Link Temperature | Not Applicable |
| Maximum Ambient Temperature | 180 Degrees F |
| Maximum Pressure | 1 in wc |
| Single Acting/Double Acting | Single Acting |
| Rough Opening Diameter | 50 1/2 in |
| Frame Material Thickness | 20 ga |
| For Nominal Duct Diameter | Not Applicable |
| Rough Opening Shape | Square |
| Closure Type | Gravity |
| Switch Action | Normally Closed |
| ACMA Leakage Class | Not Applicable |
| Frame Less Flange | 50 |
| Pressure Drop @ 1000 fpm (AMCA 5.2) | Not Applicable |
| Rough Opening Length | 49 1/2 in |
| Fits Fan Diameter | 48 in |
| Damper Application | Backdraft |
| Free Area | 15.4 sq ft |
| Airflow Direction | Vertical |
| Damper Type | Static |
| Counterbalanced | Yes |
| Flange Type | Rear Flange |
| For Fuel Type | Not Applicable |
| Seal Material | Not Applicable |
| Blade Orientation | Parallel Blades |
| Blade Material | Aluminum |
| Flange Width | 1 in |
| Bushing Material | Nylon |
| Frame Material | Galvanized Steel |
| Blade Seal Material | Felt |
| Number of Panels | 1 |
| Blade Type | Flat Blade |
| Mounting Position | Horizontal |
| Maximum Air Velocity | 2250 fpm |
| Country of Origin (subject to change) | United States |
| Package Quantity | 1 |
Damper, Roof, DAYTON, Mfr# 4HX71
$319,99
-$9.6 / ea
with subscription
Free shipping will be applied on orders over $50
52 In.H-W 4.5 In.L Aluminum Backdraft Damper, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity 2250 fpm, Overall Height 52 in, Rough Opening Diameter 50 1/2 in, Rough Opening Shape Square, Fits Fan Diameter 48 in, For Duct Shape Square, Free Area 15.4 sq ft, Overall Width 52 in, Frame Material Thickness 20 ga, Overall Length 4 1/2 in, Frame Depth 2 in, Rough Opening Length 49 1/2 in
9999 in stock
Must order in multiples of 1
Subtotal:
$319.99
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