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Dayton 45"H-W 5.75"L Aluminum Backdraft Damper: For 42 in Fan, Double Panel, 45 in H - Wall-Mount Backdraft Dampers
DaytonWall-Mount Backdraft Dampers

Dayton 45"H-W 5.75"L Aluminum Backdraft Damper: For 42 in Fan, Double Panel, 45 in H

The Dayton 45"H-W 5.75"L Aluminum Backdraft Damper (SKU 3C311) is a wall-mount backdraft damper designed for use with a 42-inch fan. It features flat blades, a double-panel construction, and dimensions of 45 inches…

SKU 3G-OTH-76808

Brand
Dayton
Item
45"H-W 5.75"L Aluminum Backdraft Damper: For 42 in Fan, Double Panel, 45 in H
Category
Wall-Mount Backdraft Dampers
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Technical Specifications

Dayton
Manufacturer Part Number
3C311
Type
Double Panel, 45 in W, Wall
D
3 in
H
45 in
Blade Type
Flat Blade
Airflow Direction
Horizontal
Mounting Position
Vertical
Maximum Air Velocity
2500 fpm
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Dayton Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Dayton 45"H-W 5.75"L Aluminum Backdraft Damper (SKU 3C311) is a wall-mount backdraft damper designed for use with a 42-inch fan. It features flat blades, a double-panel construction, and dimensions of 45 inches high, 45 inches wide, and 3 inches deep. The damper supports horizontal airflow direction, vertical mounting, and a maximum air velocity of 2500 fpm.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Dayton 3C311 backdraft damper used for?

The Dayton 3C311 backdraft damper prevents reverse airflow in exhaust systems. It is designed for wall mounting with a 42-inch fan, using flat blades that open under positive pressure and close when airflow stops, ensuring one-way horizontal air movement.

What are the specifications of the Dayton 3C311 backdraft damper?

The Dayton 3C311 measures 45 inches high by 45 inches wide by 3 inches deep, with double-panel construction and flat aluminum blades. It supports horizontal airflow, vertical mounting, and a maximum air velocity of 2500 fpm. The manufacturer part number is 3C311.

Where to buy the Dayton 3C311 backdraft damper worldwide?

3G Electric supplies the Dayton 3C311 backdraft damper to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this item.

How to install a Dayton backdraft damper?

Mount the Dayton backdraft damper vertically in a wall opening sized to its 45-inch by 45-inch frame. Ensure the blades pivot freely and the damper is oriented so airflow direction is horizontal. Secure with appropriate fasteners and seal edges to prevent air leaks.

Used in

Common applications for Dayton
HVAC ventilation — DAYTON centrifugal upblast roof exhaust fans (SKU 7M7U3) for kitchen exhaust systems
Mechanical power transmission — DAYTON HTD timing pulleys (SKU 404GV0) for conveyor belt drives
Process water handling — DAYTON self-priming centrifugal pumps (SKU 2ZXT4) for dewatering or transfer
Roofing and building services — DAYTON fixed ventilated roof curbs (SKU 4HX59) for filtered supply fan installations
Material handling — DAYTON latch assemblies (SKU 2KEN4) for electric chain hoist hook safety
Industrial air movement — DAYTON downblast roof exhaust fans (SKU 3HFL9) for clean air exhaust in manufacturing plants

Dayton Products

3G Electric supplies Dayton wall-mount backdraft dampers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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