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Dayton 29"H-W 4.5"L Aluminum Backdraft Damper: For 24 in Fan, Single Panel, 29 in H - Ceiling/Roof-Mount Backdraft Dampers
DaytonCeiling/Roof-Mount Backdraft Dampers

Dayton 29"H-W 4.5"L Aluminum Backdraft Damper: For 24 in Fan, Single Panel, 29 in H

The Dayton 29"H-W 4.5"L Aluminum Backdraft Damper (SKU 4HX68) is a ceiling/roof-mount backdraft damper designed for use with a 24-inch fan. It features a single-panel flat blade design with vertical airflow direction…

SKU 3G-OTH-74890

Brand
Dayton
Item
29"H-W 4.5"L Aluminum Backdraft Damper: For 24 in Fan, Single Panel, 29 in H
Category
Ceiling/Roof-Mount Backdraft Dampers
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Technical Specifications

Dayton
Manufacturer Part Number
4HX68
Type
Single Panel, 29 in W, Felt
D
2 in
H
29 in
Blade Type
Flat Blade
Airflow Direction
Vertical
Mounting Position
Horizontal
Maximum Air Velocity
2250 fpm
View Full Spec Sheet

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Dayton Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Dayton 29"H-W 4.5"L Aluminum Backdraft Damper (SKU 4HX68) is a ceiling/roof-mount backdraft damper designed for use with a 24-inch fan. It features a single-panel flat blade design with vertical airflow direction and horizontal mounting position, supporting a maximum air velocity of 2250 fpm. The damper measures 29 inches in height, 29 inches in width, and 2 inches in depth, with a felt seal.

Frequently Asked Questions

What is the Dayton 4HX68 backdraft damper used for?

The Dayton 4HX68 backdraft damper is used to prevent reverse airflow in ceiling or roof-mount ventilation systems. It mounts horizontally with a 24-inch fan, allowing vertical airflow only in the intended direction. The single-panel flat blade and felt seal ensure reliable closure when the fan is off.

What are the specifications of the Dayton 4HX68 backdraft damper?

The Dayton 4HX68 backdraft damper measures 29 inches high by 29 inches wide by 2 inches deep. It has a single-panel flat blade, vertical airflow direction, horizontal mounting position, and a maximum air velocity of 2250 fpm. The blade is aluminum with a felt seal.

Where to buy the Dayton 4HX68 backdraft damper worldwide?

3G Electric supplies the Dayton 4HX68 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 pricing and lead time on this ceiling/roof-mount backdraft damper.

How to install the Dayton 4HX68 backdraft damper?

Install the Dayton 4HX68 backdraft damper horizontally in a ceiling or roof opening, aligning it with a 24-inch fan. Ensure the felt seal is intact and the blade swings freely in the vertical airflow direction. Secure the frame per local building codes and verify the damper closes fully when the fan is off.

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 ceiling/roof-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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