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 - Clean Air Belt-Drive Fans with Drive
DaytonClean Air 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 belt-drive clean air fan with a square base, assembled and including a drive package. It features a 16 3/4 in wheel, delivers 3,249 cfm, and operates on…

SKU 3G-OTH-81334

Brand
Dayton
Item
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack
Category
Clean Air Belt-Drive Fans with Drive
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Dayton
Manufacturer Part Number
3HFL7
Type
Includes Drive Pack, 3,249 cfm
Wheel
16 3/4 in
Assembly
Assembled
Base Shape
Square
Drive Package
Includes Drive Package
Motor Enclosure
Open Dripproof
Motor Efficiency
Standard-Efficiency Motors
Number of Speeds
1
Mounting Location
Roof
Nameplate Voltage
115/208-230V AC
High-Efficiency Motor
No
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
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The Dayton Centrifugal Downblast Roof Exhaust Fan is a belt-drive clean air fan with a square base, assembled and including a drive package. It features a 16 3/4 in wheel, delivers 3,249 cfm, and operates on 115/208-230V AC with a single-speed, open dripproof, standard-efficiency motor. This roof-mounted unit is not designed for high-static-pressure applications.

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 a Dayton centrifugal downblast roof exhaust fan used for?

This Dayton belt-drive fan is designed for clean-air roof exhaust applications where moderate airflow up to 3,249 cfm is needed. It is not for high-static-pressure systems. Typical uses include general ventilation in commercial or industrial buildings, removing heat, fumes, or odors from roof-mounted exhaust systems.

What are the specifications of the Dayton 3HFL7 roof exhaust fan?

The Dayton 3HFL7 is a belt-drive centrifugal downblast fan with a 16 3/4 in wheel, delivering 3,249 cfm. It has a square base, open dripproof motor enclosure, standard-efficiency single-speed motor, and operates on 115/208-230V AC. It includes a drive package and is assembled.

Where to buy a Dayton 3HFL7 roof exhaust fan worldwide?

3G Electric supplies the Dayton 3HFL7 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 belt-drive fan.

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

Installation requires mounting the fan on a roof curb or structural support, ensuring proper sealing to prevent leaks. Connect the 115/208-230V AC power supply to the open dripproof motor. Verify belt tension and alignment per Dayton's manual. Always follow local electrical codes and use 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 clean air belt-drive fans with drive. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 14 3/4 in Wheel, 1,994 cfm (MPN 3HFL6). Key specifications — Assembly: Assembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/208-230V AC.
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 14 3/4 in Wheel, 1,994 cfm (MPN 3HFL6). Key specifications — Assembly: Assembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/208-230V AC.
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 30 1/2 in Wheel, 9,719 cfm (MPN 3HFL8). Key specifications �— Assembly: Assembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/208-230V AC.
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 30 1/2 in Wheel, 9,719 cfm (MPN 3HFL8). Key specifications — Assembly: Assembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/208-230V AC.
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 36 in Wheel, 18,322 cfm, 3 (MPN 3HFL9). Key specifications — Assembly: Assembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 208-230/460V AC.
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 36 in Wheel, 18,322 cfm, 3 (MPN 3HFL9). Key specifications — Assembly: Assembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 208-230/460V AC.
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 24 1/2 in Wheel, 4,637 cfm (MPN 7A573). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/208-230V AC.
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 24 1/2 in Wheel, 4,637 cfm (MPN 7A573). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/208-230V AC.
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 16 3/4 in Wheel, 3,249 cfm (MPN 7A560). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/208-230V AC.
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 16 3/4 in Wheel, 3,249 cfm (MPN 7A560). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/208-230V AC.
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 30 1/2 in Wheel, 6,803 cfm (MPN 7A578). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/208-230V AC.
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 30 1/2 in Wheel, 6,803 cfm (MPN 7A578). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/208-230V AC.

More from Dayton

View all Dayton parts
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 18 1/2 in Wheel, 4,102 cfm (MPN 7A657). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 208-230/440V AC.
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 18 1/2 in Wheel, 4,102 cfm (MPN 7A657). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 208-230/440V AC.
Axial Upblast Roof Exhaust Fan: Belt Drive, 36 in Blade, 17,455 cfm, TEFC, 1 1/2 hp, 115/208-230V AC (MPN 7A863). Key specifications — Number of Speeds: 1; Nameplate Voltage: 115/208-230V AC; Brand: DAYTON.
Dayton
Axial Upblast Roof Exhaust Fan: Belt Drive, 36 in Blade, 17,455 cfm, TEFC, 1 1/2 hp, 115/208-230V AC (MPN 7A863). Key specifications — Number of Speeds: 1; Nameplate Voltage: 115/208-230V AC; Brand: DAYTON.
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 14 3/4 in Wheel, 3,163 cfm (MPN 7AX50). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/230V AC.
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 14 3/4 in Wheel, 3,163 cfm (MPN 7AX50). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/230V AC.
DAYTON Tubeaxial Fan: Clean Air, 42 in Blade, 25,320 cfm @ 0.000 in SP, 230V AC, 1 Phase, Belt Drive (MPN 7AG16). Key specifications — Brand: DAYTON; Includes Drive Package: Yes; Spark Resistant Construction Type: B; Assembly: Unassembled; Nameplate Voltage: 230V AC; Mounting Orientation: Vertical; Hazardous Location Specification: Not Rated; Motor Enclosure: Totally Enclosed Fan Cooled.
Dayton
DAYTON Tubeaxial Fan: Clean Air, 42 in Blade, 25,320 cfm @ 0.000 in SP, 230V AC, 1 Phase, Belt Drive (MPN 7AG16). Key specifications — Brand: DAYTON; Includes Drive Package: Yes; Spark Resistant Construction Type: B; Assembly: Unassembled; Nameplate Voltage: 230V AC; Mounting Orientation: Vertical; Hazardous Location Specification: Not Rated; Motor Enclosure: Totally Enclosed Fan Cooled.
Axial Upblast Roof Exhaust Fan: Belt Drive, 42 in Blade, 23,987 cfm, ODP, 2 hp, 115/208-230V AC, 1 (MPN 7HZ28). Key specifications — Number of Speeds: 1; Nameplate Voltage: 115/208-230V AC; Brand: DAYTON.
Dayton
Axial Upblast Roof Exhaust Fan: Belt Drive, 42 in Blade, 23,987 cfm, ODP, 2 hp, 115/208-230V AC, 1 (MPN 7HZ28). Key specifications — Number of Speeds: 1; Nameplate Voltage: 115/208-230V AC; Brand: DAYTON.
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 14 3/4 in Wheel, 3,163 cfm (MPN 7A652). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 208-230/440V AC.
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 14 3/4 in Wheel, 3,163 cfm (MPN 7A652). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 208-230/440V AC.
DAYTON Tubeaxial Fan: Clean Air, 12 in Blade, 1,904 cfm @ 0.000 in SP, 115/208-230V AC, 1 Phase (MPN 7F927). Key specifications — Brand: DAYTON; Includes Drive Package: Yes; Spark Resistant Construction Type: B; Assembly: Unassembled; Nameplate Voltage: 115/208-230V AC; Mounting Orientation: Horizontal; Hazardous Location Specification: Not Rated; Motor Enclosure: Totally Enclosed Fan Cooled.
Dayton
DAYTON Tubeaxial Fan: Clean Air, 12 in Blade, 1,904 cfm @ 0.000 in SP, 115/208-230V AC, 1 Phase (MPN 7F927). Key specifications — Brand: DAYTON; Includes Drive Package: Yes; Spark Resistant Construction Type: B; Assembly: Unassembled; Nameplate Voltage: 115/208-230V AC; Mounting Orientation: Horizontal; Hazardous Location Specification: Not Rated; Motor Enclosure: Totally Enclosed Fan Cooled.
Axial Upblast Roof Exhaust Fan: Belt Drive, 60 in Blade, 58,455 cfm, TEFC, 7 1/2 hp, 230V AC, 1 (MPN 7A910). Key specifications — Number of Speeds: 1; Nameplate Voltage: 230V AC; Brand: DAYTON.
Dayton
Axial Upblast Roof Exhaust Fan: Belt Drive, 60 in Blade, 58,455 cfm, TEFC, 7 1/2 hp, 230V AC, 1 (MPN 7A910). Key specifications — Number of Speeds: 1; Nameplate Voltage: 230V AC; Brand: DAYTON.