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Backdraft Damper, Horizontal, 47-3/4Sq

  • Mfr # 3HHN3

  • Zoro # G2435194

product price: 
$
255.99
/ea
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Key Features

Type
No Flange, Horizontal Mount
Damper Size (In.)
47-3/4 x 47-3/4
Overall Size (In.)
47-3/4 x 47-3/4
Outside Flange (In.)
47-3/4 x 47-3/4
Max. Velocity (FPM)
2,000 fpm
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Specifications

Product Information

MFR #
3HHN3
Zoro #
G2435194
UPC #
190735289594
Country of Origin
United States

Dimensions

Damper Size (In.)
47-3/4 x 47-3/4
Overall Size (In.)
47-3/4 x 47-3/4
Overall Height
47 3/4 in
Overall Length
4 1/2 in
Overall Width
47 3/4 in
Frame Material Thickness
20 ga
Rough Opening Length
48 in
Frame Depth
2 in
Rough Opening Diameter
48 in
Rough Opening Width
48 in
For Nominal Duct Diameter
48 in
Fits Fan Diameter
48 in
Blade Material Thickness
26 ga
Wire Rope Length
4 1/2 in
Length
4 1/2 in

Details

Item
47.75"H-W 4.5"L Aluminum Backdraft Dampr
Type
No Flange, Horizontal Mount
Outside Flange (In.)
47-3/4 x 47-3/4
Max. Velocity (FPM)
2,000 fpm
Construction Material
G-90 Galvanized Steel Frame and Aluminum Blades
Includes
Pre-Punched Conduit Hole Knock-Out; Felted Edges for Quiet Operation
Flange Type
None
Minimum Ambient Temperature
-40 Degrees F
Counterbalanced
Yes
Damper Type
Dynamic
Free Area
14.7 sq ft
Blade Material
Aluminum
Damper Finish
Mill Finish
Maximum Pressure
1 in wc
Blade Seal Material
Felt
Number of Panels
1
Bushing Material
Nylon
Frame Material
Galvanized Steel
Opening Type
Spring
Blade Type
Flat Blade
Switch Action
Normally Closed
Damper Application
Backdraft
Maximum Air Velocity
2250 fpm
Rough Opening Shape
Square
For Duct Shape
Square
Frame Less Flange
47 3/4
Single Acting/Double Acting
Single Acting
Airflow Direction
Horizontal; Vertical
Closure Velocity Rating
2,000 fpm
Blade Orientation
Parallel Blades
Series
611
Maximum Ambient Temperature
180 Degrees F
Closure Type
Spring
Mounting Position
Horizontal; Vertical
Includes Motor
No

Description

47.75 In.H-W 4.5 In.L Aluminum Backdraft Dampr, Damper Application Backdraft, For Nominal Duct Diameter 48 in, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity 2250 fpm, Overall Height 47 3/4 in, Rough Opening Diameter 48 in, Rough Opening Shape Square, Fits Fan Diameter 48 in, For Duct Shape Square, Free Area 14.7 sq ft, Overall Width 47 3/4 in, Frame Material Thickness 20 ga, Overall Length 4 1/2 in, Frame Depth 2 in, Rough Opening Length 48 in

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