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Dayton Flammable Vapor Belt-Drive Fan with Drive, 18 1/2 in Wheel, 3,655 cfm - Flammable Vapor Belt-Drive Fans with Drive
DaytonFlammable Vapor Belt-Drive Fans with Drive

Dayton Flammable Vapor Belt-Drive Fan with Drive, 18 1/2 in Wheel, 3,655 cfm

The Dayton Centrifugal Downblast Roof Exhaust Fan: Belt Drive (SKU 3G-OTH-81485) is a flammable vapor belt-drive fan with drive, featuring an 18 1/2 in wheel and 3,655 cfm exhaust airflow. It is unassembled with a…

SKU 3G-OTH-81485

Brand
Dayton
Item
Flammable Vapor Belt-Drive Fan with Drive, 18 1/2 in Wheel, 3,655 cfm
Category
Flammable Vapor Belt-Drive Fans with Drive
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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
Includes Drive Pack, 3,655 cfm
Wheel
18 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
2,000 to 4,999 cfm
Exhaust Airflow @ 0.500 in SP - Range
2,000 to 4,999 cfm
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: Belt Drive (SKU 3G-OTH-81485) is a flammable vapor belt-drive fan with drive, featuring an 18 1/2 in wheel and 3,655 cfm exhaust airflow. It is unassembled with a square base, includes a drive package, and is powered by a standard-efficiency, totally enclosed fan cooled motor at 208-230/460V AC. This roof-mounted unit is rated for hazardous locations: Class I Groups C & D and Class II Groups E, F & G.

Frequently Asked Questions

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

The Dayton is a belt-drive roof exhaust fan designed for hazardous locations classified as Class I Groups C & D and Class II Groups E, F & G. It moves 3,655 cfm of flammable vapors or combustible dusts, making it suitable for industrial plants, chemical processing, and other environments requiring explosion-proof ventilation.

What are the specifications of the Dayton roof exhaust fan?

The Dayton features an 18 1/2 in wheel, 3,655 cfm exhaust airflow, and a totally enclosed fan cooled motor rated at 208-230/460V AC. It is unassembled with a square base, includes a drive package, and is mounted on the roof. The fan is rated for hazardous locations: Class I Groups C & D and Class II Groups E, F & G.

Where to buy the Dayton exhaust fan worldwide?

3G Electric supplies the Dayton centrifugal downblast roof exhaust fan to customers 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; we source and deliver this flammable vapor belt-drive fan to any international destination.

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

Install the Dayton on a flat roof curb with proper structural support. Since it is unassembled, follow the included drive package instructions to mount the motor, belt, and wheel. Ensure electrical connections match the 208-230/460V AC nameplate. For hazardous locations, use certified conduit seals and follow local codes. 3G Electric recommends consulting a licensed electrician.

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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This unassembled belt-drive fan includes a drive package and is designed for roof-mount exhaust applications. It features an 18 1/2 in wheel delivering 3150 cfm, with a totally enclosed nonventilated motor rated for 230/460V AC. Suitable for hazardous locations classified as Class I Groups C & D and Class II Groups E, F & G, it is used to ventilate areas where flammable vapors or combustible dusts may be present
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This unassembled belt-drive fan includes a drive package and is designed for roof-mount exhaust applications. It features an 18 1/2 in wheel delivering 3150 cfm, with a totally enclosed nonventilated motor rated for 230/460V AC. Suitable for hazardous locations classified as Class I Groups C & D and Class II Groups E, F & G, it is used to ventilate areas where flammable vapors or combustible dusts may be present
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Belt-drive roof exhaust fan for hazardous locations rated Class I Groups C & D and Class II Groups E, F & G. Unassembled unit with 21 1/2 in wheel delivers 4,759 cfm. Includes drive package and totally enclosed fan cooled motor for 230/460V AC operation
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This unassembled belt-drive fan includes a drive pack and a square base for roof mounting. It features an 18 1/2 in wheel and a totally enclosed fan-cooled standard-efficiency motor rated at 230/460V AC, single speed. Rated for hazardous locations Class I Groups C & D and Class II Groups E, F & G, it delivers 4,102 cfm exhaust airflow. Typical applications include ventilation in environments where flammable vapors or combustible dusts may be present
This belt-drive fan includes a drive pack and is designed for roof-mounted exhaust in hazardous locations. It features a 13 1/4 in wheel, delivers 1,880 cfm, and operates on 230/460V AC with a totally enclosed nonventilated motor. The unassembled unit is rated for Class I Groups C & D and Class II Groups E & F, making it suitable for ventilating areas where flammable vapors or combustible dusts may be present
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This belt-drive fan includes a drive pack and is designed for roof-mounted exhaust in hazardous locations. It features a 13 1/4 in wheel, delivers 1,880 cfm, and operates on 230/460V AC with a totally enclosed nonventilated motor. The unassembled unit is rated for Class I Groups C & D and Class II Groups E & F, making it suitable for ventilating areas where flammable vapors or combustible dusts may be present
Centrifugal downblast roof exhaust fan with belt drive, includes drive pack. Wheel diameter 18 1/2 in, airflow 4,608 cfm. Square base, unassembled. Totally enclosed fan-cooled motor, standard efficiency, single speed, 208-230/460V AC. Rated for hazardous locations: Class I Groups C & D, Class II Groups E, F & G. Suitable for general ventilation in industrial settings requiring flammable vapor handling
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Centrifugal downblast roof exhaust fan with belt drive, includes drive pack. Wheel diameter 18 1/2 in, airflow 4,608 cfm. Square base, unassembled. Totally enclosed fan-cooled motor, standard efficiency, single speed, 208-230/460V AC. Rated for hazardous locations: Class I Groups C & D, Class II Groups E, F & G. Suitable for general ventilation in industrial settings requiring flammable vapor handling
This unassembled belt-drive centrifugal downblast roof exhaust fan includes a drive pack and a 21 1/2 in wheel delivering 5,340 cfm. It features a totally enclosed fan-cooled motor rated 208-230/460V AC, single speed, with standard efficiency. Rated for hazardous locations Class I Groups C & D and Class II Groups E, F & G, it is suitable for ventilating areas with flammable vapors or combustible dusts
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This unassembled belt-drive centrifugal downblast roof exhaust fan includes a drive pack and a 21 1/2 in wheel delivering 5,340 cfm. It features a totally enclosed fan-cooled motor rated 208-230/460V AC, single speed, with standard efficiency. Rated for hazardous locations Class I Groups C & D and Class II Groups E, F & G, it is suitable for ventilating areas with flammable vapors or combustible dusts

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This belt-drive fan is designed for hazardous locations rated Class I Groups C & D and Class II Groups E & F. It features an 11-inch wheel, delivers 1526 cfm, and includes a drive pack. The totally enclosed nonventilated motor operates at 230/460V AC single-speed. Unassembled with a square base for roof mounting
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