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  5. 20 in 23"H-W 5 1/4"L Aluminum Backdraft Damper, 20-1/2 in x 20-1/2 in, Aluminum
Dayton 20 in 23"H-W 5 1/4"L Aluminum Backdraft Damper, 20-1/2 in x 20-1/2 in, Aluminum 3HHN8 - main

20 in 23"H-W 5 1/4"L Aluminum Backdraft Damper, 20-1/2 in x 20-1/2 in, Aluminum

  • Mfr # 3HHN8

  • Zoro # G2239693

product price:  $98.59
/ea
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Key Features

Shutter Mounting Position
Vertical
Shutter Mounting Location
Wall
Shutter Construction Material
Extruded Aluminum Frame and Galvanized Tie Rods
Shutter Free Area
2.281 sq ft
Shutter Opening Required
20-1/2 in x 20-1/2 in
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Specifications

Product Information

MFR #
3HHN8
Zoro #
G2239693
UPC #
190735289648
Country of Origin
United States

Dimensions

Shutter Overall Size
23 in x 23 in
Fits Fan Dia.
20 in
Mounting Hole Size
Prepunched
Flange Width
1 1/2 in
Open Depth
5 3/4 in
Frame Depth
3 in
Frame Material Thickness
0.8 in
Overall Length
5 1/4 in
Overall Width
23 in
Blade Material Thickness
26 ga
Rough Opening Length
20 1/2 in
Overall Diameter
23 in
Frame Opening Height
20 in
Fits Fan Diameter
20 in
Rough Opening Width
20.5 in
Overall Height
23 in
Frame Opening Width
20 in
Mounting Hole Diameter
1/4 in
Rough Opening Diameter
20 1/2 in

Details

Item
23"H-W 5 1/4"L Aluminum Backdraft Damper
Shutter Mounting Position
Vertical
Shutter Mounting Location
Wall
Shutter Construction Material
Extruded Aluminum Frame and Galvanized Tie Rods
Shutter Free Area
2.281 sq ft
Shutter Opening Required
20-1/2 in x 20-1/2 in
Blade Material
Aluminum
Max. Velocity
2500 FPM
Type
Gravity Operated, Single Panel
Shutter Overall Square
23" x 23"
Shutter Item
Backdraft Damper / Wall Shutter, Front Flange
For Use With
Vertical Mounted Exhaust Fans
Frame Opening A
20 in
Frame Opening B
20 in
Number of Panels
1
Includes
Prepunched Mounting Holes; Felt edged Counterbalanced Louvers; Weep Holes In Frame Bottom
Mounting Position
Vertical
Free Area
2.3 sq ft
Blade Type
Flat Blade
Tie-Rod Material
Galvanized Steel Frame and Tie Rods
Damper Finish
Mill Finish
Rough Opening Shape
Square
Blade Orientation
Parallel Blades
Counterbalanced
Yes
Maximum Pressure
1 in wc
Flange Type
Front Flange
Maximum Ambient Temperature
180 Degrees F
Damper Type
Static
Maximum Air Velocity
2500 fpm
Single Acting/Double Acting
Single Acting
Frame Less Flange
20
Switch Action
Normally Closed
Blade Seal Material
Felt
Minimum Ambient Temperature
-40 Degrees F
Opening Type
Gravity
Series
EASR
Airflow Direction
Horizontal
Frame Material
Aluminum
Bushing Material
Stainless Steel
Closure Type
Gravity
Damper Application
Backdraft
Closure Velocity Rating
2,500 fpm

Description

23 In.H-W 5 1/4 In.L Aluminum Backdraft Damper, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Aluminum, Number of Panels 1, Maximum Air Velocity 2500 fpm, Overall Height 23 in, Rough Opening Diameter 20 1/2 in, Rough Opening Shape Square, Fits Fan Diameter 20 in, For Duct Shape Not Applicable, Free Area 2.3 sq ft, Overall Width 23 in, Frame Material Thickness 0.8 in, Overall Length 5 1/4 in, Connection Type Not Applicable, Frame Depth 3 in

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