QUALITYProducts.
SINCE 1948.

Severe-Duty Ventilation with All-Welded Construction & Cast Aluminum Blades
Since 1948, we’ve built on our heritage in industrial ventilation by delivering high-performance solutions that stand up to the toughest environments. The FHI Series Panel Exhaust Fan exemplifies our commitment to innovation, reliability, and customer focus—offering an array of robust, heavy-duty features designed to keep your facility safe, productive, and compliant with critical air quality standards. By combining an all-welded structural frame with a deep spun venturi orifice, and leveraging heavy-duty cast aluminum propellers, the FHI Series excels in quiet, efficient airflow and long-term durability. This includes our dependable Exhaust Fan options that cater to varied industrial needs.

With models specifically built as either exhaust or supply configurations, the FHI Series is adaptable to numerous industries—ranging from steel mills and chemical processing to large-scale refrigeration and beyond. Each unit is finished with a durable gray polyester powder coat to help withstand harsh environmental conditions, while optional features such as hazardous location motors or high-temperature components can further optimize performance and safety for your specific needs.

With sizes from 16″ to 96″ (belt drive) or 16″ to 72″ (direct drive) and a wide range of customizable options, the FHI Series Panel Exhaust or Supply Fan ensures you meet strict ventilation requirements without compromising on quality or efficiency.

Key Features & Specifications

• Sizes & Models
  • Belt Drive: 16″, 20″, 24″, 30″, 36″, 42″, 48″, 54″, 60″, 72″, 84″, 96″
  • Direct Drive: 16″, 20″, 24″, 30″, 36″, 42″, 48″, 54″, 60″, 72″
• Airflow Range: 3,610 CFM to 115,800 CFM
• Construction & Finish:
  • All-welded structural frame for added support and minimal vibration
  • Durable gray polyester powder coat finish
  • Deep spun venturi orifice for quieter, more efficient airflow
  • Heavy-duty cast aluminum propeller with airfoil blades
• Drive Options:
  • Belt Drive: Features heavy-duty self-aligning pillow block ball bearings, dynamically balanced cast iron sheaves, taper lock bushings, and extra-strength V belts
  • Direct Drive: Simplified and minimized maintenance with fewer moving parts
• Motor Types:
  • Standard: Totally enclosed (TE), Hazardous location (HL)
  • Non-Standard: Chemical duty, 50 Hz, Arctic duty, High ambient, IEEE 841, Electronically Commutated (ECM), and more
  • Horsepower Offerings: 1/2 HP, 3/4 HP, 1 HP, 1-1/2 HP, 2 HP, 3 HP, 5 HP, 7-1/2 HP, 10 HP, 15 HP, 20 HP, 25 HP
• Mounting Flexibility: Fan can be mounted vertically in a wall, horizontally in a roof with an appropriate hood cover, or at any intermediate angle.
• Typical Lead Time: Ships in 4–6 weeks for most catalog models.

Accessories

Enhance performance, safety, and convenience with our range of add-ons designed to integrate seamlessly with the FHI Series:

1. Wall Boxes
   • Enables secure mounting to wall openings.
   • Facilitates the installation of screens or shutters.
   • Can be used to convert the fan into a semi-portable spot or man cooler.
2. Shutters and Dampers
   • Available in gravity, manual, or electric motor-driven versions.
   • Helps regulate airflow and protects interior spaces when the fan is not in use.
3. Rainhoods
   • Provide additional overhead coverage against rain, snow, or debris.
   • Help ensure that moisture and contaminants do not enter the fan or facility from above.
   • Ideal for external installations in unpredictable climates.
   • Available in 45° or 90° models.
4. Screen Guards
   • Constructed of heavy-gauge wire with a mesh suitable for most industrial applications.
   • Adds a layer of safety by preventing accidental contact with the fan blades.
5. Electrical Disconnect
   • A convenient, local means of cutting power to the fan for maintenance or emergencies.
   • Ensures compliance with lock-out/tag-out procedures.
6. Rain Louvers
   • Heavy-duty extruded aluminum louvers to protect supply fans from rain and moisture infiltration.
   • Ideal for outdoor applications or environments prone to inclement weather.

Customization

If your requirements go beyond our standard offerings, we specialize in crafting tailored solutions:

• Custom Design: Modify internal bracing orientation, wall box sizes, or outer dimensions to match unique facility layouts.
• Custom Airflow Targets: We’ll help you select the ideal propeller or blade design to meet your specific static pressure and performance needs, ensuring optimal airflow and efficient operation for your application.
• High-Temperature Applications: Upgrade components and materials to withstand extreme operating conditions, factoring in reduced air density at high temperatures. We’ll also adjust propeller selection as needed to maintain proper airflow and performance.
• Low-Temperature / Arctic Duty Applications: Utilize specialized lubricants, motors, and components specifically designed for sub-zero climates. We’ll account for increased air density in cold conditions to ensure accurate static pressure, efficient airflow, and reliable operation.
• ECM (Electronically Commutated Motors): Improve efficiency and control with premium motor technology.
• Material Options: Choose from standard steel, aluminum, or stainless steel for enhanced corrosion resistance or lighter weight.

Typical Use Cases & Applications

Engineered for severe-duty environments, the FHI Series helps maintain optimal air quality and worker safety in:

• Steel mills
• Processing facilities
• Oil & gas rigs
• Refrigeration systems
• Parking garages
• Factories and manufacturing plants

By rapidly moving large volumes of air, these fans help reduce airborne contaminants, improve worker comfort, and lower energy costs. Helping facilities align with ASHRAE Standard 62.2 and local building codes, these fans support your efforts to meet or exceed recommended ventilation requirements.

Benefits & Value Proposition

1. Superior Durability
   • All-welded construction and heavy-duty components minimize downtime and reduce long-term maintenance costs.
2. Efficient Performance
   • Non-overloading, airfoil cast aluminum blades and a deep spun venturi orifice maximize airflow while keeping noise low.
3. Industry-Leading Expertise
   • Backed by decades of experience since 1948, our technical support team can guide you through selection, installation, and beyond.
4. Short Lead Times & Tailored Solutions
   • Typically ships in 4–6 weeks, with custom options available to meet your precise requirements.
5. Made in the USA
   • Proudly designed and manufactured in Jacksonville, Arkansas with a blend of domestic and foreign components.

Related Products

Complement or extend your ventilation system with these premium solutions:

• HHC Series Hooded Fans
  • Weather-resistant hooded exhaust fans designed for roof or wall mounting.
• JBI Series Belt Drive Roof Mount Exhaust Fan (motor in airstream)
  • Ideal for general ventilation where the motor can be positioned in the air stream for effective cooling.
• JBX Series Belt Drive Roof Mount Exhaust Fan (motor out of airstream)
  • Keeps the motor separate from harsh or contaminated airflows, extending motor life.
• JD Series Direct Drive Roof Mount Exhaust Fan
  • Simplifies maintenance and lowers energy consumption with fewer mechanical components.

Ready to Enhance Your Ventilation System?

Choose the FHI Series Panel Exhaust or Supply Fan for a premium, severe-duty ventilation solution backed by more than half a century of expertise.

Contact us for a quote or to discuss a custom design that aligns with your application requirements.