Damper, Roof Mount - 4HX69
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Dayton
Damper, Roof Mount - 4HX69
37 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 37 in, Rough Opening Diameter 35 1/2 in, Rough Opening Shape Square, Fits Fan Diameter 36 in, For Duct Shape Square, Free Area 7.1 sq ft, Overall Width 37 in, Frame Material Thickness 20 ga, Overall Length 4 1/2 in, Frame Depth 2 in, Rough Opening Length 34 1/2 in
- Country of Origin:
- United States
- Item:
- 37H-W 4.5"L Aluminum Backdraft Damper"
- Type:
- Roof Mount, Exhaust
- Damper Size (In.):
- 35 x 35
- Overall Size (In.):
- 37 x 37
- Includes:
- Pre-Punched Conduit Hole Knock-Out; Felted Edges for Quiet Operation
- Flange Width (In.):
- 1 in
- Construction Material:
- Aluminum Blades, G-90 Galvanized Steel Frame, Nylon Bushings and Galvanized Steel Tie Rods., Stainless Steel Pivot Pins
- Outside Flange (In.):
- 37 x 37
- Use w/Dayton Ventilators:
- 4HX88, 4HX99
- Max. Velocity (FPM):
- 2,250 fpm
- Overall Width:
- 37 in
- Overall Length:
- 4 1/2 in
- Overall Height:
- 37 in
- Damper Type:
- Static
- Rough Opening Length:
- 34 1/2 in
- Flange Width:
- 1 in
- Rough Opening Width:
- 35.5 in
- Flange Type:
- Rear Flange
- Frame Less Flange:
- 35
- Switch Action:
- Normally Closed
- For Duct Shape:
- Square
- Overall Diameter:
- Not Applicable
- Pressure Drop @ 1000 fpm (AMCA 5.2):
- Not Applicable
- Fits Fan Diameter:
- 36 in
- Mounting Position:
- Horizontal
- Frame Material:
- Galvanized Steel
- Single Acting/Double Acting:
- Single Acting
- Free Area:
- 7.1 sq ft
- Seal Material:
- Not Applicable
- Rough Opening Shape:
- Square
- Frame Material Thickness:
- 20 ga
- For Nominal Duct Diameter:
- Not Applicable
- For Fuel Type:
- Not Applicable
- Counterbalanced:
- Yes
- Number of Panels:
- 1
- Bushing Material:
- Nylon
- Maximum Pressure:
- 1 in wc
- Closure Velocity Rating:
- 2,250 fpm
- Airflow Direction:
- Vertical
- Blade Type:
- Flat Blade
- Frame Depth:
- 2 in
- ACMA Leakage Class:
- Not Applicable
- Rough Opening Diameter:
- 35 1/2 in
- Blade Orientation:
- Parallel Blades
- Fusible Link Temperature:
- Not Applicable
- Maximum Ambient Temperature:
- 180 Degrees F
- Blade Seal Material:
- Felt
- Damper Application:
- Backdraft
- Blade Material:
- Aluminum
- Maximum Air Velocity:
- 2250 fpm
- Closure Type:
- Gravity
- Package Quantity:
- 1
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Damper, Backdraft, Wall Mount, 19-3/4 In Sq - 5NKN4
Manufacturer: Dayton
MFR # 5NKN4
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