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Dayton

18 in Backdraft Damper / Wall Shutter, Front Flange

product price: $85.89
/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 2.043 sq ft
  • Shutter Opening Required 18-1/2 in x 18-1/2 in
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Product Information

Dimensions

Shutter Overall Size 21 in x 21 in
Fits Fan Dia. 18 in
Frame Depth 3 in
Open Depth 5 3/4 in
Mounting Hole Size Prepunched
Flange Width 1 1/2 in
Frame Opening Width 18 in
Frame Opening Height 18 in
Overall Length 5 1/4 in
Overall Height 21 in
Overall Width 21 in
Rough Opening Width 18.5 in
Mounting Hole Diameter 1/4 in
Rough Opening Length 18 1/2 in
Overall Diameter 21 in
Fits Fan Diameter 18 in
Rough Opening Diameter 18 1/2 in

Details

Item 21"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 2.043 sq ft
Shutter Opening Required 18-1/2 in x 18-1/2 in
Blade Material Aluminum
Max. Velocity 2500 FPM
Number of Panels 1
Shutter Item Backdraft Damper / Wall Shutter, Front Flange
For Use With Vertical Mounted Exhaust Fans
Shutter Overall Square 21" x 21"
Frame Opening B 18 in
Frame Opening A 18 in
Includes Prepunched Mounting Holes; Felt edged Counterbalanced Louvers; Weep Holes In Frame Bottom
Mounting Position Vertical
Free Area 2 sq ft
Frame Material Aluminum
Damper Type Static
Bushing Material Stainless Steel
Counterbalanced Yes
Closure Type Gravity
Frame Less Flange 18
Maximum Ambient Temperature 180 Degrees F
Rough Opening Shape Square
Blade Type Flat Blade
Damper Application Backdraft
Tie-Rod Material Galvanized Steel Frame and Tie Rods
Frame Material Thickness 0.8 in
Blade Material Thickness 26 ga
Opening Type Gravity
Blade Orientation Parallel Blades
Closure Velocity Rating 2,500 fpm
Flange Type Front Flange
Minimum Ambient Temperature -40 Degrees F
Blade Seal Material Felt
Airflow Direction Horizontal
Maximum Air Velocity 2500 fpm
Damper Finish Mill Finish
Single Acting/Double Acting Single Acting
Switch Action Normally Closed
Series EASR
Maximum Pressure 1 in wc

Description

21 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 21 in, Rough Opening Diameter 18 1/2 in, Rough Opening Shape Square, Fits Fan Diameter 18 in, For Duct Shape Not Applicable, Free Area 2 sq ft, Overall Width 21 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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