We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

Dayton 11.75"H-W 4.5"L Alu Univ Backdraft Dampr: For 12 in Fan, For 12 in Nominal Duct Dia - Universal-Mount Backdraft Dampers
DaytonUniversal-Mount Backdraft Dampers

Dayton 11.75"H-W 4.5"L Alu Univ Backdraft Dampr: For 12 in Fan, For 12 in Nominal Duct Dia

The Dayton is a universal-mount backdraft damper designed for use with a 12-inch fan and 12-inch nominal duct diameter. It features a flat blade type, supports vertical airflow direction, and is mounted in a…

SKU 3G-OTH-74429

Brand
Dayton
Item
11.75"H-W 4.5"L Alu Univ Backdraft Dampr: For 12 in Fan, For 12 in Nominal Duct Dia
Category
Universal-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

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Dayton
Type
For 12 in Nominal Duct Dia, Single Panel
Blade Type
Flat Blade
Airflow Direction
Vertical
Mounting Position
Horizontal
Maximum Air Velocity
2000 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 is a universal-mount backdraft damper designed for use with a 12-inch fan and 12-inch nominal duct diameter. It features a flat blade type, supports vertical airflow direction, and is mounted in a horizontal position. The damper has a maximum air velocity of 2000 fpm and is constructed with an aluminum body measuring 11.75 inches in height and width and 4.5 inches in length.

Frequently Asked Questions

What is the Dayton backdraft damper used for?

The Dayton universal-mount backdraft damper prevents reverse airflow in ventilation systems. It is designed for use with a 12-inch fan and 12-inch nominal duct diameter, supporting vertical airflow direction in horizontal mounting positions.

What are the specifications of the Dayton backdraft damper?

The Dayton has a flat blade type, supports vertical airflow, and mounts horizontally. It measures 11.75 inches in height and width, 4.5 inches in length, and handles a maximum air velocity of 2000 fpm. The aluminum body is for 12-inch nominal duct diameter.

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 site. Contact us for availability and lead time.

How to install the Dayton backdraft damper?

Install the Dayton damper in a horizontal duct section with the airflow arrow pointing upward for vertical flow. Ensure the damper frame fits securely within the 12-inch duct. Secure with sheet metal screws and verify the blade moves freely before system startup.

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 universal-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

Compatible alternatives & equivalents

Cross-referenced by specification & description
13.75"H-W 4.5"L Alu Univ Backdraft Dampr: For 12 in Fan, For 14 in Nominal Duct Dia, Single Panel
Dayton
13.75"H-W 4.5"L Alu Univ Backdraft Dampr: For 12 in Fan, For 14 in Nominal Duct Dia, Single Panel
9.75"H-W 4.5"L Alu Univ Backdraft Dampr: For 10 in Fan, For 10 in Nominal Duct Dia, Single Panel
Dayton
9.75"H-W 4.5"L Alu Univ Backdraft Dampr: For 10 in Fan, For 10 in Nominal Duct Dia, Single Panel
17.75"H-W 4.5"L Alu Univ Backdraft Dampr: For 18 in Fan, For 18 in Nominal Duct Dia, Single Panel
Dayton
17.75"H-W 4.5"L Alu Univ Backdraft Dampr: For 18 in Fan, For 18 in Nominal Duct Dia, Single Panel
42"H-W 5.75"L Alu Wall Backdraft Dampr: For 36 in Fan, Single Panel, 42 in H, 42 in W, 2 1/2 in D
Dayton
42"H-W 5.75"L Alu Wall Backdraft Dampr: For 36 in Fan, Single Panel, 42 in H, 42 in W, 2 1/2 in D
49.75"H-W 4.5"L Aluminum Backdraft Dampr: For 48 in Fan, For 50 in Nominal Duct Dia, Double Panel
Dayton
49.75"H-W 4.5"L Aluminum Backdraft Dampr: For 48 in Fan, For 50 in Nominal Duct Dia, Double Panel
33"H-W 5.75"L Alu Wall Backdraft Dampr: For 30 in Fan, Single Panel, 33 in H, 33 in W, 3 in D, Wall
Dayton
33"H-W 5.75"L Alu Wall Backdraft Dampr: For 30 in Fan, Single Panel, 33 in H, 33 in W, 3 in D, Wall

More from Dayton

View all Dayton parts
7.75"H-W 4.5"L Aluminum Backdraft Damper: For 8 in Fan, For 8 in Nominal Duct Dia, Single Panel
Dayton
7.75"H-W 4.5"L Aluminum Backdraft Damper: For 8 in Fan, For 8 in Nominal Duct Dia, Single Panel
33.75"H-W 4.5"L Aluminum Backdraft Dampr: For 34 in Fan, For 34 in Nominal Duct Dia, Single Panel
Dayton
33.75"H-W 4.5"L Aluminum Backdraft Dampr: For 34 in Fan, For 34 in Nominal Duct Dia, Single Panel
19.8"H-W 4.5"L Alu Spring Bkdrft Dampr: For 20 in Fan, For 20 in Nominal Duct Dia, Single Panel
Dayton
19.8"H-W 4.5"L Alu Spring Bkdrft Dampr: For 20 in Fan, For 20 in Nominal Duct Dia, Single Panel
44.75"H-W Alu Universal Backdraft Dampr: For 42 in Fan, Single Panel, 44 3/4 in H, 44 3/4 in W, Felt
Dayton
44.75"H-W Alu Universal Backdraft Dampr: For 42 in Fan, Single Panel, 44 3/4 in H, 44 3/4 in W, Felt
47.75"H-W 4.5"L Aluminum Backdraft Dampr: For 48 in Fan, For 48 in Nominal Duct Dia, Single Panel
Dayton
47.75"H-W 4.5"L Aluminum Backdraft Dampr: For 48 in Fan, For 48 in Nominal Duct Dia, Single Panel
41.75"H-W 4.5"L Aluminum Backdraft Dampr: For 42 in Fan, For 42 in Nominal Duct Dia, Single Panel
Dayton
41.75"H-W 4.5"L Aluminum Backdraft Dampr: For 42 in Fan, For 42 in Nominal Duct Dia, Single Panel
23.75"H-W 4.5"L Alu Univ Backdraft Dampr: For 24 in Fan, For 24 in Nominal Duct Dia, Single Panel
Dayton
23.75"H-W 4.5"L Alu Univ Backdraft Dampr: For 24 in Fan, For 24 in Nominal Duct Dia, Single Panel
39.75"H-W 4.5"L Aluminum Backdraft Dampr: For 40 in Fan, For 40 in Nominal Duct Dia, Single Panel
Dayton
39.75"H-W 4.5"L Aluminum Backdraft Dampr: For 40 in Fan, For 40 in Nominal Duct Dia, Single Panel