In industrial settings where corrosive fumes, extreme temperatures, or constant use are the norm, airflow failure isn’t an option. That’s where industrial inline duct fans come in—ensuring ventilation, safety, and efficiency across demanding environments like chemical plants, wastewater facilities, and manufacturing floors.
Hartzell Air Movement brings over 145 years of engineering leadership to this challenge. Hartzell Fans (Direct or Belt Drive) are engineered not only for superior performance but also for long-term durability and minimal maintenance—qualities that separate Hartzell from more standardized offerings on the market. In this article, we’ll explore the top features to prioritize in an inline duct fan and explain why Hartzell’s solutions are a standout choice for critical applications.
Importance of Inline Duct Fans
Inline duct fans play a critical role in maintaining air movement through complex duct systems. They support proper ventilation, regulate temperature, and help sustain air quality in industrial environments. In corrosive or high-demand settings, such as chemical plants or marine facilities, durability and low maintenance become especially vital.
Hartzell’s Duct Fans are purpose-built for these environments, offering robust performance and superior corrosion resistance when required. Compared to competing brands, Hartzell delivers extended lifespan and customized performance with less downtime and maintenance.
Overview of the Best Inline Duct Fans
Hartzell Duct fan models are designed for high-volume industrial use. Available in sizes up to 60” wheel diameters, they deliver air volumes up to around 160,000 CFM and static pressures up to 3 inches w.g. They offer adjustable airflow for dynamic conditions and compact designs for tight spaces.
Unlike many competitor models, Hartzell’s duct fans are also available with corrosion-resistant fiberglass housings and proprietary molded wheel designs that eliminate joints. This ensures longer operational life and greater reliability under corrosive conditions, such as those found in wastewater or chemical facilities.
Key Features
Airflow Capacity
Measured in CFM, airflow capacity is a key performance indicator for inline duct fans. Hartzell’s models deliver up to 160,000 CFM and static pressures up to 3 inches w.g., ideal for high-demand systems. Their airfoil-shaped blades optimize flow and reduce energy use. Compared to lower-capacity alternatives, Hartzell’s fans maintain performance across a wider range of pressures and volumes.
Noise Levels
Noise is an important consideration in industrial spaces, especially where regulations or worker comfort are a concern. Hartzell’s two-plane balancing process and airfoil blade design reduce vibration and turbulence, producing quieter operation than many competitors. The result: safer, more comfortable work environments without sacrificing airflow.
Energy Efficiency
Energy efficiency impacts both cost and sustainability. Hartzell’s fans feature TEFC motors up to 30 HP and use airfoil blades to reduce drag. Direct drive models eliminate belt losses, allowing for smaller motors than belt-driven alternatives.
Best Duct Fans on the Market
Top Picks for Industrial Use
Hartzell inline duct fans are ideal for industrial applications due to their balance of power, efficiency, and resilience. Their setup is perfect for facilities with changing airflow needs, like wastewater plants. Compact, direct-drive models are ideal for installations with limited space, such as marine engine rooms.
In comparison to other fans on the market, Hartzell’s heavy-duty bearings, molded fiberglass options, and low maintenance designs make them stand out in demanding environments.
Top Features to Consider
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- Durability: Hartzell’s molded, joint-free fiberglass housing significantly extends lifespan in corrosive environments.
- Customization: Choose from nine sizes, two drive options, and various accessories (guards, drain fittings, spark-resistant components).
- Low Maintenance: Two-plane balancing adds material to the wheel without drilling, preserving structural integrity and reducing maintenance-related downtime by up to 30%.
Installation Considerations
Inline Duct Fan Installation Tips
Proper installation maximizes performance and longevity. Hartzell’s fans feature slip-joint or flanged connections for easy integration. Use vibration isolators and ensure proper duct alignment to reduce noise and airflow resistance. Access doors and compact design allow for straightforward maintenance, even in retrofit projects where space is limited.
Choosing the Right Size
Fan size directly affects efficiency and airflow. Hartzell’s wide range (12 to 60 inches) supports precise sizing to meet your system’s CFM and static pressure requirements. Application engineers and proprietary software help you find the best fit—whether for a compact 24-inch HVAC system or a 60-inch fan in a high-volume chemical plant.
Conclusion
Recap of Key Features
The best industrial inline duct fans deliver on airflow, efficiency, durability, and ease of maintenance. Hartzell models deliver up to 160,000 CFM, quiet performance, corrosion resistance, and customizable options for harsh environments.
Final Recommendations
When failure isn’t an option, choose a fan engineered to last. Hartzell’s duct fans deliver the performance, efficiency, and reliability your operations demand—backed by over 145 years of industry experience.
Visit hartzellairmovement.com to explore technical specs and request a consultation. Or contact Hartzell’s application engineers at 800-336-3267 or info@hartzell.com. Follow Hartzell on LinkedIn for the latest insights and innovations.