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Dayton Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack - Flammable Vapor Belt-Drive Fans with Drive
DaytonFlammable Vapor Belt-Drive Fans with Drive

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

The Dayton Centrifugal Downblast Roof Exhaust Fan (SKU 7AF21) is a flammable vapor belt-drive fan with drive, featuring a 24 1/2 in wheel and 5,371 cfm exhaust airflow. It is unassembled, square-based, and…

SKU 3G-OTH-81613

Brand
Dayton
Item
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack
Category
Flammable Vapor Belt-Drive Fans with Drive
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Technical Specifications

Dayton
Manufacturer Part Number
7AF21
Type
Includes Drive Pack, 5,371 cfm
Wheel
24 1/2 in
Assembly
Unassembled
Base Shape
Square
Drive Package
Includes Drive Package
Motor Enclosure
Totally Enclosed Fan Cooled
Motor Efficiency
Standard-Efficiency Motors
Number of Speeds
1
Mounting Location
Roof
Nameplate Voltage
208-230/460V AC
High-Efficiency Motor
No
Hazardous Location Rating
Class I Groups C & D, Class II Groups E, F & G
Hazardous Location Specification
Class I Group C, Class I Group D, Class II Group E, Class II Group F, Class II Group G
Exhaust Airflow @ 0.000 in SP - Range
5,000 to 10,000 cfm
Exhaust Airflow @ 0.500 in SP - Range
2,000 to 4,999 cfm
For High-Static Pressure Applications
No
View Full Spec Sheet

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

Product Description

The Dayton Centrifugal Downblast Roof Exhaust Fan (SKU 7AF21) is a flammable vapor belt-drive fan with drive, featuring a 24 1/2 in wheel and 5,371 cfm exhaust airflow. It is unassembled, square-based, and roof-mounted, with a totally enclosed fan-cooled motor (208-230/460V AC, standard efficiency, single-speed). This unit is rated for hazardous locations: Class I Groups C & D and Class II Groups E, F & G.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Dayton 7AF21 centrifugal downblast roof exhaust fan used for?

The Dayton 7AF21 is a flammable vapor belt-drive roof exhaust fan designed for hazardous locations rated Class I Groups C & D and Class II Groups E, F & G. It moves 5,371 cfm of air, making it suitable for industrial environments requiring explosion-proof ventilation, such as chemical plants or paint booths.

What are the specifications of the Dayton 7AF21 roof exhaust fan?

The Dayton 7AF21 features a 24 1/2 in wheel, 5,371 cfm airflow, and a totally enclosed fan-cooled motor rated 208-230/460V AC. It is unassembled with a square base, includes a drive package, and is single-speed with standard-efficiency motors. It is certified for hazardous locations: Class I Groups C & D and Class II Groups E, F & G.

Where to buy the Dayton 7AF21 roof exhaust fan worldwide?

3G Electric supplies the Dayton 7AF21 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 availability and lead time; we source genuine Dayton equipment for hazardous-location ventilation needs.

How to install the Dayton 7AF21 flammable vapor roof exhaust fan?

Install the Dayton 7AF21 on a roof curb with a square base, ensuring proper sealing for hazardous locations. Follow local electrical codes for Class I Groups C & D and Class II Groups E, F & G. The unassembled unit requires field assembly of the drive package and motor; consult the manual for torque specs and 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 flammable vapor belt-drive fans with drive. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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