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  • Dayton Aluminum Backdraft Damper For 30 inch Fan, 3C309
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Dayton Aluminum Backdraft Damper For 30 inch Fan, 3C309
Dayton Aluminum Backdraft Damper For 30 inch Fan, 3C309
Dayton Aluminum Backdraft Damper For 30 inch Fan, 3C309
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Dayton Aluminum Backdraft Damper For 30 inch Fan, 3C309

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Features
Type of Product Backdraft Damper
Length 30-1/2 inch
Blade Material Aluminum
Ambient Temperature 180 °F
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Type of Product

Backdraft Damper

Length

30-1/2 inch

Blade Material

Aluminum

Ambient Temperature

180 °F

Damper Type

Static

Blade Type

Flat Blade

Mounting position

Vertical

Flange Type

Rear Flange

Country of Origin

USA

Maximum Pressure

1 in wc

Action

Normally Closed

Seal Material

Felt

Panel

1

Overall Length

5-3/4 inch

Mounting Location

Wall

Fan Diameter

30 inch

Area

0.51 sq m

Opening Width

30.5 inch

Orientation

Parallel Blades

Shape

Square

UNSPSC Code

40101504

Material Thickness

26 ga

Flange Width

1-1/2 inch

Depth

3 inch

Overall Height

33 Inch

Part No

3C309

Series

EAS

Rod Material

Galvanized Steel Frame and Tie Rods

Overall Width

33 inch

Frame Material

Aluminum

Item Code

3C309

Maximum Air Velocity

2500 fpm

Air Flow

Horizontal

Opening Diameter

30-1/2 inch

Overall Diameter

33 inch

Mounting Hole Diameter

1/4 inch

Open Depth

6-1/4 inch

Opening Size

30 inch

Rough Opening Width

30 inch

Overall Height (cm)

83.82 cm

Overall Length (cm)

14.61 cm

Mounting Hole Diameter (Φmm)

6.35 mm

Overall Width (mm)

838.2 mm

Overall Diameter (mm)

838.2 mm
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