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Damper, Roof

  • Mfr # 4HX71
  • Zoro # G2233804
product price: 
$
238.99
/ea
Additional $100.00 delivery surcharge applies per item.
See details

Key Features

Type
Roof Mount, Exhaust
Damper Size (In.)
50 x 50
Overall Size (In.)
52 x 52
Use w/Dayton Ventilators
4HX90
Outside Flange (In.)
52 x 52
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Specifications

Details

MFR #
4HX71
Zoro #
G2233804
UPC #
190735325957
Country of Origin
United States
Item
52"H-W 4.5"L Aluminum Backdraft Damper
Type
Roof Mount, Exhaust
Use w/Dayton Ventilators
4HX90
Outside Flange (In.)
52 x 52
Construction Material
Aluminum Blades, G-90 Galvanized Steel Frame, Nylon Bushings and Galvanized Steel Tie Rods., Stainless Steel Pivot Pins
Includes
Pre-Punched Conduit Hole Knock-Out; Felted Edges for Quiet Operation
Max. Velocity (FPM)
2,250 fpm
For Duct Shape
Square
Closure Velocity Rating
2,250 fpm
Maximum Ambient Temperature
180 Degrees F
Maximum Pressure
1 in wc
Single Acting/Double Acting
Single Acting
Rough Opening Shape
Square
Closure Type
Gravity
Switch Action
Normally Closed
Frame Less Flange
50
Damper Application
Backdraft
Free Area
15.4 sq ft
Airflow Direction
Vertical
Damper Type
Static
Counterbalanced
Yes
Flange Type
Rear Flange
Blade Orientation
Parallel Blades
Blade Material
Aluminum
Bushing Material
Nylon
Frame Material
Galvanized Steel
Blade Seal Material
Felt
Number of Panels
1
Blade Type
Flat Blade
Mounting Position
Horizontal
Maximum Air Velocity
2250 fpm

Description

52 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 52 in, Rough Opening Diameter 50 1/2 in, Rough Opening Shape Square, Fits Fan Diameter 48 in, For Duct Shape Square, Free Area 15.4 sq ft, Overall Width 52 in, Frame Material Thickness 20 ga, Overall Length 4 1/2 in, Frame Depth 2 in, Rough Opening Length 49 1/2 in

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