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

Dayton Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack - Clean Air Belt-Drive Fans with Drive
DaytonClean Air Belt-Drive Fans with Drive

Dayton Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack

The Dayton Centrifugal Downblast Roof Exhaust Fan (SKU 3G-OTH-79745) is a belt-drive clean air fan with a drive package, designed for roof mounting. It features a 26 1/2-inch wheel, delivers 7,491 cfm, and operates…

SKU 3G-OTH-79745

Brand
Dayton
Item
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack
Category
Clean Air Belt-Drive Fans with Drive
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
Includes Drive Pack, 7,491 cfm
Wheel
26 1/2 in
Assembly
Unassembled
Base Shape
Square
Drive Package
Includes Drive Package
Motor Enclosure
Open Dripproof
Motor Efficiency
Standard-Efficiency Motors
Number of Speeds
1
Mounting Location
Roof
Nameplate Voltage
115/208-230V AC
High-Efficiency Motor
No
Exhaust Airflow @ 0.000 in SP - Range
5,000 to 10,000 cfm
Exhaust Airflow @ 0.500 in SP - Range
5,000 to 10,000 cfm
For High-Static Pressure Applications
No

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 Centrifugal Downblast Roof Exhaust Fan (SKU 3G-OTH-79745) is a belt-drive clean air fan with a drive package, designed for roof mounting. It features a 26 1/2-inch wheel, delivers 7,491 cfm, and operates on 115/208-230V AC with a single-speed, open dripproof motor. This unassembled unit has a square base and is not intended for high-static-pressure applications.

Frequently Asked Questions

What is the Dayton centrifugal downblast roof exhaust fan used for?

The Dayton is a belt-drive clean air fan designed for roof-mounted general ventilation. It exhausts up to 7,491 cfm of non-corrosive air in commercial or industrial buildings, such as warehouses or factories, where moderate static pressure is present.

What are the specifications of the Dayton roof exhaust fan?

The Dayton has a 26 1/2-inch wheel, delivers 7,491 cfm, and operates on 115/208-230V AC with a single-speed open dripproof motor. It includes a drive package, has a square base, is unassembled, and is not for high-static-pressure applications.

Where to buy the Dayton roof exhaust fan worldwide?

3G Electric supplies the Dayton roof exhaust fan worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and a quote tailored to your location.

How to install the Dayton belt-drive roof exhaust fan?

Install the Dayton on a roof curb with a square opening. Assemble the unassembled unit per the manual, connect the 115/208-230V AC motor to a properly rated disconnect, and ensure belt tension is correct. Use a licensed electrician for wiring.

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 clean air belt-drive fans with drive. 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
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 26 1/2 in Wheel, 7,491 cfm
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 26 1/2 in Wheel, 7,491 cfm
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 26 1/2 in Wheel, 6,005 cfm
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 26 1/2 in Wheel, 6,005 cfm
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 26 1/2 in Wheel, 6,716 cfm
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 26 1/2 in Wheel, 6,716 cfm
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 26 1/2 in Wheel, 6,716 cfm
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 26 1/2 in Wheel, 6,716 cfm
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 26 1/2 in Wheel, 9,493 cfm
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 26 1/2 in Wheel, 9,493 cfm
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 26 1/2 in Wheel, 8,588 cfm
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 26 1/2 in Wheel, 8,588 cfm

More from Dayton

View all Dayton parts
DAYTON Tubeaxial Fan: Clean Air, 12 in Blade, 1,904 cfm @ 0.000 in SP, 115/208-230V AC, 1 Phase
Dayton
DAYTON Tubeaxial Fan: Clean Air, 12 in Blade, 1,904 cfm @ 0.000 in SP, 115/208-230V AC, 1 Phase
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 14 3/4 in Wheel, 3,163 cfm
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 14 3/4 in Wheel, 3,163 cfm
DAYTON Tubeaxial Fan: Clean Air, 36 in Blade, 14,285 cfm @ 0.000 in SP, 115/208-230V AC, 1 Phase
Dayton
DAYTON Tubeaxial Fan: Clean Air, 36 in Blade, 14,285 cfm @ 0.000 in SP, 115/208-230V AC, 1 Phase
Axial Upblast Roof Exhaust Fan: Belt Drive, 60 in Blade, 58,455 cfm, TEFC, 7 1/2 hp, 230V AC, 1
Dayton
Axial Upblast Roof Exhaust Fan: Belt Drive, 60 in Blade, 58,455 cfm, TEFC, 7 1/2 hp, 230V AC, 1
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 14 3/4 in Wheel, 3,163 cfm
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 14 3/4 in Wheel, 3,163 cfm
Axial Upblast Roof Exhaust Fan: Belt Drive, 42 in Blade, 23,987 cfm, ODP, 2 hp, 115/208-230V AC, 1
Dayton
Axial Upblast Roof Exhaust Fan: Belt Drive, 42 in Blade, 23,987 cfm, ODP, 2 hp, 115/208-230V AC, 1
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 30 1/2 in Wheel, 7,694 cfm
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 30 1/2 in Wheel, 7,694 cfm
Axial Upblast Roof Exhaust Fan: Belt Drive, 36 in Blade, 17,455 cfm, TEFC, 1 1/2 hp, 115/208-230V AC
Dayton
Axial Upblast Roof Exhaust Fan: Belt Drive, 36 in Blade, 17,455 cfm, TEFC, 1 1/2 hp, 115/208-230V AC