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  9. 20 in Backdraft Damper / Wall Shutter, 20-1/2 in x 20-1/2 in
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Dayton

20 in Backdraft Damper / Wall Shutter, 20-1/2 in x 20-1/2 in

product price: $78.69
/ea
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Key Features

  • Shutter Mounting Position Vertical
  • Shutter Mounting Location Wall
  • Shutter Construction Material G-90 Galvanized Steel Frame and 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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Product Information

Dimensions

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

Details

Item 23"H-W 5.75"L Alu Wall Backdraft Dampr
Shutter Mounting Position Vertical
Shutter Mounting Location Wall
Shutter Construction Material G-90 Galvanized Steel Frame and 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
Shutter Overall Square 23" x 23"
Frame Opening B 20 in
Frame Opening A 20 in
For Use With Vertical Mounted Exhaust Fans
Shutter Item Backdraft Damper / Wall Shutter
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
Damper Finish Mill Finish
Tie-Rod Material Galvanized Steel Frame and Tie Rods
Flange Type Rear Flange
Frame Material Thickness 20 ga
Closure Type Gravity
Blade Type Flat Blade
Frame Material Galvanized Steel
Blade Orientation Parallel Blades
Single Acting/Double Acting Single Acting
Bushing Material Stainless Steel
Maximum Ambient Temperature 180 Degrees F
Frame Less Flange 20
Damper Type Static
Maximum Air Velocity 2500 fpm
Blade Material Thickness 26 ga
Damper Application Backdraft
Series 556
Counterbalanced Yes
Switch Action Normally Closed
Maximum Pressure 1 in wc
Rough Opening Shape Square
Closure Velocity Rating 2,500 fpm
Blade Seal Material Felt
Opening Type Gravity
Airflow Direction Horizontal

Description

23 In.H-W 5.75 In.L Alu Wall Backdraft Dampr, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Galvanized Steel, 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 20 ga, Overall Length 5 3/4 in, Connection Type Not Applicable, Frame Depth 2 1/2 in

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