Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
Dayton Wall-Mount Backdraft Damper - Wall-Mount Backdraft Dampers
DaytonWall-Mount Backdraft Dampers

Dayton Wall-Mount Backdraft Damper

The Dayton 33"H-W 5 1/4"L SS Backdraft Damper (SKU 3G-OTH-77214) is a wall-mount backdraft damper with flat blades, designed for horizontal airflow and vertical mounting. It has a maximum air velocity of 2500 fpm and…

SKU 3G-OTH-77214

Brand
Dayton
Item
Wall-Mount Backdraft Damper
Category
Wall-Mount Backdraft Dampers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Dayton
Type
Double Panel, 33 in W, Horizontal
Blade Type
Flat Blade
Airflow Direction
Horizontal
Mounting Position
Vertical
Maximum Air Velocity
2500 fpm

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The Dayton 33"H-W 5 1/4"L SS Backdraft Damper (SKU 3G-OTH-77214) is a wall-mount backdraft damper with flat blades, designed for horizontal airflow and vertical mounting. It has a maximum air velocity of 2500 fpm and is intended for use with a 30-inch fan.

Frequently Asked Questions

What is the Dayton 33"H-W 5 1/4"L SS Backdraft Damper used for?

This Dayton backdraft damper is used to prevent reverse airflow in ventilation systems. It is designed for horizontal airflow and vertical mounting, typically installed with a 30-inch fan to allow exhaust flow in one direction while blocking backdrafts.

What are the specifications of the Dayton backdraft damper?

The Dayton backdraft damper has flat blades, a maximum air velocity of 2500 fpm, and dimensions of 33 inches high by 33 inches wide by 2 inches deep. It is designed for horizontal airflow and vertical mounting, with a 5 1/4-inch blade length.

Where to buy the Dayton backdraft damper worldwide?

3G Electric supplies the Dayton backdraft damper worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the Dayton backdraft damper?

Install the Dayton damper in a vertical mounting position with the airflow direction set horizontally. Ensure the damper is securely fastened to the wall or duct opening. Follow standard HVAC practices for sealing and alignment to prevent air leakage.

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
Not sure this is the right part? Photo-identify it

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from Dayton

View all Dayton parts
This wall-mount backdraft damper features a single-panel flat blade design for horizontal airflow and vertical mounting. It measures 13 inches high by 13 inches wide with a depth of 2.5 inches, and is rated for a maximum air velocity of 2500 fpm. Suitable for use in ventilation systems where prevention of reverse airflow is required
Dayton
This wall-mount backdraft damper features a single-panel flat blade design for horizontal airflow and vertical mounting. It measures 13 inches high by 13 inches wide with a depth of 2.5 inches, and is rated for a maximum air velocity of 2500 fpm. Suitable for use in ventilation systems where prevention of reverse airflow is required
This wall-mount backdraft damper is designed to prevent reverse airflow in ventilation systems. It features a single-panel flat blade construction with extruded aluminum for corrosion resistance. Suitable for horizontal airflow and vertical mounting, it supports a maximum air velocity of 3250 fpm. Dimensions: 27 inches high, 27 inches wide, 3 inches deep
Dayton
This wall-mount backdraft damper is designed to prevent reverse airflow in ventilation systems. It features a single-panel flat blade construction with extruded aluminum for corrosion resistance. Suitable for horizontal airflow and vertical mounting, it supports a maximum air velocity of 3250 fpm. Dimensions: 27 inches high, 27 inches wide, 3 inches deep

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first