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Dayton Flammable Vapor Belt-Drive Fan with Drive, 18 1/2 in Wheel, 4,608 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, 4,608 cfm

The Dayton Centrifugal Downblast Roof Exhaust Fan (SKU 3G-OTH-81499) is a flammable vapor belt-drive fan with drive, featuring a belt drive and a square base. It is rated for hazardous locations including Class I…

SKU 3G-OTH-81499

Brand
Dayton
Item
Flammable Vapor Belt-Drive Fan with Drive, 18 1/2 in Wheel, 4,608 cfm
Category
Flammable Vapor Belt-Drive Fans with Drive
Available to Order
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Local availability & support

Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
No warning recorded
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Required — additional freight charges may applyThis item requires special shipping, additional charges may apply.

Technical Specifications

Dayton
Type
Includes Drive Pack, 4,608 cfm
Phase
3
Wheel
18 1/2 in
UNSPSC
40101503
Current
3.4 to 3.6/1.8 A
Assembly
Unassembled Assembly This indicates whether the fan ships fully assembled and ready to use, or must be assembled by the user before use.
Features
Nonoverloading Centrifugal Wheel Design
Frequency
60 Hz
Standards
AMCA Sound and Air; UL
Base Shape
Square
Base Width
30 in
Drive Type
Belt Drive
Mount Type
Roof Curb
Wheel Type
Backward Inclined
Application
Industrial and Commercial Applications
Base Height
1-3/4 in
Base Length
30 in
Damper Size
23 x 23 in
Motor Speed
1,725 RPM
Bearing Type
Regreasable Pillow Block
Catalog Page
N/A
For Air Type
Flammable Vapor
Drive Package
Includes Drive Package
Housing Width
35.5 in
Overall Width
35-1/2 in
Housing Length
35.5 in
Motor Location
Out of Airstream
Overall Height
36-1/8 in
Overall Length
35-1/2 in
Wheel Diameter
18-1/2 in Wheel Diameter
Wheel Material
Aluminum
Motor Enclosure
Totally Enclosed Fan Cooled
Brake Horsepower
1-1/10 hp
Housing Material
Aluminum
Motor Efficiency
Standard-Efficiency Motors
Motor Horsepower
1 hp Motor Horsepower Horsepower (HP) is the measurement of an HVAC motor’s output power. It expresses the rate at which the motor works to operate the fan.
Number of Speeds
1
Overall Diameter
35-1/2 in
Country of Origin
Varies (subject to change)
Maximum Fan Speed
1,185 RPM
Mounting Location
Roof
Nameplate Voltage
208-230/460V AC Nameplate Voltage This indicates the voltage rating inscribed on the nameplate. The voltage class (nominal voltage) required to operate the fan can vary slightly from this number.
Speed Controllable
No Speed Controllable This indicates whether an optional speed control can be used with the fan to adjust the fan's speed.
Electrical Connection
Power Cord
High-Efficiency Motor
No High-Efficiency Motor These fans include a high-efficiency, electronically commutated motor.
Maximum Static Pressure
1-1/2 in wc Maximum Static Pressure This is the maximum static pressure in inches of water column that these fans can overcome.
Hazardous Location Rating
Class I Groups C & D, Class II Groups E, F & G
Housing Material Fabrication
Spun
Maximum Inlet Air Temperature
180 °F Maximum Inlet Air Temperature This is the maximum temperature of air that can be moved through these fans safely. Exceeding this temperature may cause damage to the fan.
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

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

Product Description

The Dayton Centrifugal Downblast Roof Exhaust Fan (SKU 3G-OTH-81499) is a flammable vapor belt-drive fan with drive, featuring a belt drive and a square base. It is rated for hazardous locations including Class I Groups C & D and Class II Groups E, F & G, with a totally enclosed fan cooled motor and a nameplate voltage of 208-230/460V AC. The fan delivers exhaust airflow ranges of 2,000 to 4,999 cfm at both 0.000 in SP and 0.500 in SP, and is unassembled with standard-efficiency motors.

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 such as chemical plants or refineries. It handles flammable vapors and is rated Class I Groups C & D and Class II Groups E, F & G. It delivers 4,608 cfm for general ventilation in industrial settings.

What are the specifications of the Dayton roof exhaust fan?

The Dayton has an 18 1/2 in wheel, 4,608 cfm airflow, and a totally enclosed fan cooled motor. Nameplate voltage is 208-230/460V AC. It includes a drive pack, has a square base, and is unassembled. Motor efficiency is standard, not high-efficiency.

Where to buy the Dayton exhaust fan worldwide?

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

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

Installation requires mounting the unassembled fan on a roof curb, connecting ductwork, and wiring the motor per nameplate voltage (208-230/460V AC). Ensure proper support and seal all joints. Follow local codes and the manufacturer's manual for belt tension and alignment.

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 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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