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Dayton Clean Air Belt-Drive Fan without Drive, 21 1/2 in Wheel, Roof Mount - Clean Air Belt-Drive Fans without Drive
DaytonClean Air Belt-Drive Fans without Drive

Dayton Clean Air Belt-Drive Fan without Drive, 21 1/2 in Wheel, Roof Mount

The Dayton Centrifugal Downblast Roof Exhaust Fan is a belt-drive, clean air fan designed for roof mounting. This unassembled unit features a 21 1/2-inch wheel and a square base, supplied without a drive package. It…

SKU 3G-OTH-80253

Brand
Dayton
Item
Clean Air Belt-Drive Fan without Drive, 21 1/2 in Wheel, Roof Mount
Category
Clean Air Belt-Drive Fans without Drive
Available to Order
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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
Less Drive Pack, Clean Air
Wheel
21 1/2 in
Assembly
Unassembled
Base Shape
Square
Drive Package
Less Drive Package
Number of Speeds
1
Mounting Location
Roof
For High-Static Pressure Applications
No

Technical Documents

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

Product Description

The Dayton Centrifugal Downblast Roof Exhaust Fan is a belt-drive, clean air fan designed for roof mounting. This unassembled unit features a 21 1/2-inch wheel and a square base, supplied without a drive package. It operates as a single-speed fan 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 centrifugal downblast roof exhaust fan is used for general clean-air ventilation in commercial and industrial roof-mounted applications. It moves air downward through the roof curb, making it suitable for exhausting heat, odors, or fumes from factories, warehouses, and other facilities where high-static pressure is not required.

What are the specifications of the Dayton roof exhaust fan?

The Dayton is a belt-drive, clean-air centrifugal downblast roof exhaust fan with a 21 1/2-inch wheel. It is unassembled, has a square base, and is supplied without a drive package. It operates as a single-speed fan, mounts on the roof, and is not designed for high-static-pressure applications.

Where to buy the Dayton roof exhaust fan worldwide?

3G Electric supplies the Dayton centrifugal downblast roof exhaust fan to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this unassembled, less-drive-pack fan.

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

Install the Dayton belt-drive roof exhaust fan on a compatible roof curb, ensuring the square base aligns with the curb opening. Since the unit is supplied without a drive package, you must select and install a motor and belt drive that match the fan's 21 1/2-inch wheel and single-speed requirements. Follow standard industrial fan installation practices for secure mounting and electrical connections.

Used in

Common applications for Dayton
Manufacturing — Dayton 21XJ72 motor for machine tool coolant pumps circulates coolant during cutting, grinding, and drilling operations.
Water management — Dayton 3YU59 submersible sump pump removes water from basements, crawl spaces, and construction sites.
HVAC — Dayton 804T11 unit heater provides supplemental heating in warehouses, workshops, and garages.
Power transmission — Dayton 2X897 pillow block bearing supports rotating shafts in conveyors, fans, and other machinery.
Workshop — Dayton 2LKR8 bench grinder sharpens tools and deburrs metal parts with dust exhaust for a cleaner environment.
Fluid handling — Dayton 5RGV6 fountain pump circulates and aerates water in decorative ponds and fountains.
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Dayton Products

3G Electric supplies Dayton clean air belt-drive fans without drive. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Belt-drive centrifugal downblast roof exhaust fan for clean air applications. Unassembled unit with a 13 1/4-inch wheel and square base, supplied without a drive package. Single-speed operation for roof mounting; not intended for high-static pressure use
Dayton
Belt-drive centrifugal downblast roof exhaust fan for clean air applications. Unassembled unit with a 13 1/4-inch wheel and square base, supplied without a drive package. Single-speed operation for roof mounting; not intended for high-static pressure use
Belt-drive centrifugal downblast roof exhaust fan for clean air applications. Unassembled unit with a 50-inch wheel and square base for roof mounting. Single-speed operation, less drive package. Not for high-static-pressure use
Dayton
Belt-drive centrifugal downblast roof exhaust fan for clean air applications. Unassembled unit with a 50-inch wheel and square base for roof mounting. Single-speed operation, less drive package. Not for high-static-pressure use
Belt-drive centrifugal downblast roof exhaust fan with a 36-inch wheel and square base. Unassembled unit supplied without a drive package, single-speed operation. Designed for roof mounting in general ventilation applications not requiring high static pressure
Dayton
Belt-drive centrifugal downblast roof exhaust fan with a 36-inch wheel and square base. Unassembled unit supplied without a drive package, single-speed operation. Designed for roof mounting in general ventilation applications not requiring high static pressure
Unassembled axial downblast roof exhaust fan for industrial and commercial clean air applications. Features a 24-inch blade, square base, and supports airflow from 1,352 cfm to 5,320 cfm. Supplied without drive package; drive components must be sourced separately
Dayton
Unassembled axial downblast roof exhaust fan for industrial and commercial clean air applications. Features a 24-inch blade, square base, and supports airflow from 1,352 cfm to 5,320 cfm. Supplied without drive package; drive components must be sourced separately

More from Dayton

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This belt-drive axial upblast roof exhaust fan is designed for high-volume air movement in industrial and commercial ventilation systems. It handles airflow from 17,378 cfm to 50,958 cfm and features a 54-inch blade. The fan is intended for roof-mounted exhaust applications to remove heat, fumes, and stale air from large spaces
Dayton
This belt-drive axial upblast roof exhaust fan is designed for high-volume air movement in industrial and commercial ventilation systems. It handles airflow from 17,378 cfm to 50,958 cfm and features a 54-inch blade. The fan is intended for roof-mounted exhaust applications to remove heat, fumes, and stale air from large spaces
This belt-drive axial upblast roof exhaust fan is designed for clean air applications, moving 11,471 to 32,495 cfm with a 42-inch blade. The upblast discharge directs exhaust upward, away from the roof surface, making it suitable for high-volume ventilation in industrial and commercial buildings. Supplied without a drive, it allows for custom integration into existing systems
Dayton
This belt-drive axial upblast roof exhaust fan is designed for clean air applications, moving 11,471 to 32,495 cfm with a 42-inch blade. The upblast discharge directs exhaust upward, away from the roof surface, making it suitable for high-volume ventilation in industrial and commercial buildings. Supplied without a drive, it allows for custom integration into existing systems
This Dayton belt-drive fan is designed for moving clean air in industrial ventilation systems. It features a 21-inch blade and a maximum noise level of 45 sones at 5 feet. The fan has a vertical mounting orientation and is constructed with Spark Resistant Construction Type B, suitable for environments where flammable dust or vapors may be present. The belt-drive design allows for adjustable airflow, and the unit does not include a drive package
Dayton
This Dayton belt-drive fan is designed for moving clean air in industrial ventilation systems. It features a 21-inch blade and a maximum noise level of 45 sones at 5 feet. The fan has a vertical mounting orientation and is constructed with Spark Resistant Construction Type B, suitable for environments where flammable dust or vapors may be present. The belt-drive design allows for adjustable airflow, and the unit does not include a drive package
This belt-drive axial upblast roof exhaust fan is designed for clean air applications requiring airflow from 11,600 to 19,212 cfm. The 36-inch blade and upblast configuration direct exhaust upward, away from the roof surface. Suitable for general ventilation in industrial and commercial settings
Dayton
This belt-drive axial upblast roof exhaust fan is designed for clean air applications requiring airflow from 11,600 to 19,212 cfm. The 36-inch blade and upblast configuration direct exhaust upward, away from the roof surface. Suitable for general ventilation in industrial and commercial settings
Unassembled axial downblast roof exhaust fan for clean air in industrial and commercial settings. Features a 20-inch blade and square base, designed for roof mounting. Supports airflow from 960 cfm to 3,957 cfm. Supplied without drive package
Dayton
Unassembled axial downblast roof exhaust fan for clean air in industrial and commercial settings. Features a 20-inch blade and square base, designed for roof mounting. Supports airflow from 960 cfm to 3,957 cfm. Supplied without drive package
Unassembled clean air belt-drive fan for roof mounting. Square base, 36-inch blade, handles 2,580 to 10,406 cfm. Less drive package requires separate drive components. Suitable for industrial and commercial exhaust ventilation
Dayton
Unassembled clean air belt-drive fan for roof mounting. Square base, 36-inch blade, handles 2,580 to 10,406 cfm. Less drive package requires separate drive components. Suitable for industrial and commercial exhaust ventilation
Belt-drive centrifugal downblast roof exhaust fan for general clean-air ventilation. Unassembled unit with a 14-inch wheel and square base. Single-speed motor. Supplied without drive package. Not for high-static-pressure applications
Dayton
Belt-drive centrifugal downblast roof exhaust fan for general clean-air ventilation. Unassembled unit with a 14-inch wheel and square base. Single-speed motor. Supplied without drive package. Not for high-static-pressure applications
This unassembled belt-drive centrifugal fan is designed for clean-air roof exhaust applications. It features an 11-inch wheel and a square base, supplied without a drive package. The single-speed unit is suitable for general ventilation where high static pressure is not required
Dayton
This unassembled belt-drive centrifugal fan is designed for clean-air roof exhaust applications. It features an 11-inch wheel and a square base, supplied without a drive package. The single-speed unit is suitable for general ventilation where high static pressure is not required

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