Fan Efficiency

Fan efficiency should be judged wire-to-air — from electrical input to useful air power — not from motor nameplate alone. Articles cover FEI metrics, part-load behaviour, annual energy calculation and the design factors separating premium EC platforms from commodity fans.

By longwell / April 8, 2025 / Product

How LONGWELL Cross-Flow Fan LWCD-65300MN-07 Boosts Industrial Ventilation Efficiency

  #Cross-Flow Fan ▶ High air volume of 357 m³/h. ▶ Low noise leve...

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By longwell / April 7, 2025 / Product

How LONGWELL Cross-Flow Fan LWCA-60300SN-14 Boosts Industrial Ventilation Efficiency

​The LONGWELL Cross-Flow Fan LWCA-60300SN-14 significantly enhances in...

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By longwell / April 2, 2025 / Product

LWCD50150MN07 Cross Flow Fan Air Volume with High Efficiency

The LONGWELL Cross-flow Fan LWCD-50150MN-07 delivers an impressive 88m...

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EC Plastic Inline Duct Fan
By longwell / March 27, 2025 / News

Inline Duct Fans: The Best Applications for Maximum Efficiency

Inline duct fans are an essential component in many HVAC (Heating, Ven...

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By longwell / March 24, 2025 / Brand

How LONGWELL Cross-Flow Fans Boost Industrial Efficiency with 5000m³/h Air Volume?

​LONGWELL’s Cross-Flow Fans enhance industrial efficiency by del...

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By longwell / March 24, 2025 / Product

How Cross-flow Fans Deliver High Efficiency in Industrial Applications?

​LONGWELL’s cross-flow fans are engineered to deliver high effic...

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By longwell / March 21, 2025 / Brand

LONGWELL Cross-Flow Fans Boost Industrial Efficiency with 5000m³/h Air Volume

​LONGWELL’s Cross-Flow Fans enhance industrial efficiency with a...

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EC Fan Technology
By longwell / March 19, 2025 / News

What is EC Fan Technology?

Introduction LONGWELL LWBE3G155-072PS EC backward curved centrifugal f...

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the Differences: EC Fans vs Centrifugal Fans
By longwell / March 17, 2025 / News

Understanding the Differences: EC Fans vs Centrifugal Fans

Introduction LONGWELL LWBE3G155-072PS EC backward curved centrifugal f...

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