We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

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 is a flammable vapor belt-drive fan with drive, model 3G-OTH-81812. It is unassembled, features a square base, and includes a drive package. The fan has a 24 1/2-inch…

SKU 3G-OTH-81812

Brand
Dayton
Item
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack
Category
Flammable Vapor Belt-Drive Fans with Drive
Available to Order
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Worldwide Shipping
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Dayton
Type
Includes Drive Pack, 4,637 cfm
Wheel
24 1/2 in
Assembly
Unassembled
Base Shape
Square
Drive Package
Includes Drive Package
Motor Enclosure
Totally Enclosed Nonventilated
Motor Efficiency
Standard-Efficiency Motors
Number of Speeds
1
Mounting Location
Roof
Nameplate Voltage
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
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 flammable vapor belt-drive fan with drive, model 3G-OTH-81812. It is unassembled, features a square base, and includes a drive package. The fan has a 24 1/2-inch wheel, delivers 4,637 cfm exhaust airflow, and is rated for hazardous locations including Class I Groups C & D and Class II Groups E, F & G. It operates with a 230/460V AC, totally enclosed nonventilated, standard-efficiency motor.

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 7AF20 centrifugal downblast roof exhaust fan used for?

The Dayton 7AF20 is a flammable vapor belt-drive roof exhaust fan designed for hazardous locations classified as Class I Groups C & D and Class II Groups E, F & G. It is used to exhaust fumes, vapors, or dust-laden air from industrial facilities such as chemical plants, paint booths, or grain handling operations.

What are the specifications of the Dayton 7AF20 roof exhaust fan?

The Dayton 7AF20 is a belt-drive downblast roof fan with a 24 1/2-inch wheel delivering 4,637 cfm exhaust airflow. It operates on 230/460V AC with a totally enclosed nonventilated motor. The fan is unassembled, has a square base, includes a drive package, and is rated for hazardous locations Class I Groups C & D and Class II Groups E, F & G.

Where to buy the Dayton 7AF20 exhaust fan worldwide?

3G Electric supplies the Dayton 7AF20 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 location.

How to install the Dayton 7AF20 roof exhaust fan?

Install the Dayton 7AF20 unassembled fan by mounting the square base on a roof curb, ensuring proper sealing for weather protection. Connect the belt-drive system per the included drive pack instructions, wire the 230/460V AC motor to a suitable disconnect, and verify hazardous location compliance. Always follow local electrical codes and use certified conduit seals.

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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