Backward Curved Fans

Backward curved impellers trail away from the direction of rotation, giving high efficiency and a non-overloading power curve — the standard choice for AHUs, fan walls, FFUs and data-center air handling. This tag collects design explanations, EC plug fan applications and retrofit cases built on the LONGWELL LWBE3G platform.

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By longwell / January 24, 2026 / Technical Articles

What Makes LONGWELL Backward Curved Centrifugal Fans Stand Out

What Makes LONGWELL Backward Curved Centrifugal Fans Stand Out You not...

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What is a Plug Fan The Ultimate Guide to Casingless Fan
By longwell / January 8, 2026 / Technical Articles

What is a Plug Fan? The Ultimate Guide to Casingless Fan

1. What is a Plug Fan? If you have ever opened up the access door of a...

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Beijing-Data-Center-Retrofit--How-LONGW
By longwell / January 6, 2026 / Engineering Case Studies

Beijing Data Center Retrofit: How LONGWELL Radial Fans Achieved ±0.3°C Precision

Beijing Data Center Retrofit: How LONGWELL Radial Fans Achieved ±0.3°C...

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By longwell / December 25, 2025 / Technical Articles

Understanding Industrial Centrifugal Fans and Their Key Functions

Understanding Industrial Centrifugal Fans and Their Key Functions You ...

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By longwell / December 16, 2025 / Technical Articles

Plug Fans for HVAC Systems vs Traditional Fans Which Performs Better

Plug Fans for HVAC Systems vs Traditional Fans Which Performs Better Y...

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High-Efficiency-Plug-Fans-for-HVAC--amp
By longwell / December 13, 2025 / Technical Articles

High Efficiency Plug Fans for HVAC & Air Handling Units: The Ultimate Guide

High Efficiency Plug Fans for HVAC & Air Handling Units: The Ultim...

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Why-Restaurants-Prefer-Centrifugal-Fans
By longwell / December 3, 2025 / Technical Articles

Why Restaurants Prefer Centrifugal Fans for Grease Removal and Air Purification

Why Restaurants Prefer Centrifugal Fans for Grease Removal and Air Pur...

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EC Backward Curved vs Forward Curved Centrifugal Fans Which Performs Better
By longwell / October 28, 2025 / Technical Articles

EC Backward Curved vs Forward Curved Centrifugal Fans: Which Performs Better

Backward curved fans usually work better than forward curved fans in t...

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By longwell / October 20, 2025 / Technical Articles

Comparing Backward and Forward Curved Centrifugal Fans Key Differences Explained

Comparing Backward and Forward Curved Centrifugal Fans Key Differences...

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The-Fan-Revolution--Unlocking-the-Core-
By longwell / August 28, 2025 / Technical Articles

The Fan Revolution: Unlocking the Core Technology and Aerodynamic Principles of High-Efficiency Centrifugal Fans

The Fan Revolution: Unlocking the Core Technology and Aerodynamic Prin...

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