Dayton Ceiling/Roof-Mount Backdraft Damper
The Dayton 29"H-W 4.5"L Aluminum Backdraft Damper (SKU 3G-OTH-74890) 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…
SKU 3G-OTH-74890
Local availability & support
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
Need installation or engineering help?
Ask a question
Product Description
The Dayton 29"H-W 4.5"L Aluminum Backdraft Damper (SKU 3G-OTH-74890) 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 backdraft damper used for?
The Dayton 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 backdraft damper?
The Dayton 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 backdraft damper worldwide?
3G Electric supplies the Dayton 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 backdraft damper?
Install the Dayton 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 DaytonDayton 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.
You might also need
Compatible alternatives & equivalents
- Dayton Aluminum wall-mount backdraft damper with single panel flat blade design. Measures 12 3/4 inches high and wide. Mounts vertically for horizontal airflow, maximum air velocity 2250 fpm. Prevents reverse airflow when fan is off in ventilation systems
- Dayton This wall-mount backdraft damper is designed for vertical mounting in exhaust or intake systems to prevent reverse airflow when the fan is off. It features a single-panel, flat blade construction with vertical airflow direction. Suitable for use with a 12-inch fan, it handles a maximum air velocity of 2250 fpm
