Technical Articles

Fan selection, airflow, controls, installation and application knowledge.

LONGWELL greenhouse ventilation fan
By longwell / July 8, 2026 / Technical Articles

How to Choose Greenhouse Ventilation Fan?

In modern facility agriculture, the stability of the greenhouse enviro...

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LONGWELL double inlet centrifugal fan
By longwell / July 2, 2026 / Technical Articles

Single Inlet vs Double Inlet Centrifugal Fan: When to Use Each?

In industrial ventilation and HVAC systems, centrifugal fans serve as ...

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10 common ec fan specification mistakes
By longwell / July 1, 2026 / Technical Articles

EC Fan Specifications: 10 Common Mistakes to Avoid

Selecting the wrong EC fan can cost your countdown and excess noise. E...

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LONGWELL
By longwell / June 30, 2026 / Technical Articles

Industrial Centrifugal Blower: High-Static-Pressure Applications Guide

In industrial environments where reliable air movement and high static...

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centrifugal fan for data center cooling
By longwell / June 26, 2026 / Technical Articles

Centrifugal Fan for Data Center Cooling: Key Specs & Selection

When the power density of a single cabinet jumps five times or ev...

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top 10 centrifugal fan manufacturers
By longwell / June 25, 2026 / Technical Articles

Top 10 Centrifugal Fan Manufacturers in 2026

The definitive global ranking of centrifugal fan manufacturers across ...

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Longwell centrifugal fan
By longwell / June 24, 2026 / Technical Articles

7 Effective Ways to Reduce Centrifugal Fan Noise

Centrifugal fans are widely used in various commercial and industrial ...

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ec fan selection guide
By longwell / June 18, 2026 / Technical Articles

The Complete EC Fan Selection Guide: 7 Engineering Steps

EC fans have become the preferred choice for modern HVAC, industrial v...

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Longwell centrifugal fan
By longwell / June 17, 2026 / Technical Articles

How to Improve Centrifugal Fan Efficiency? 5 Optimization Strategies

Efficient airflow is the lifeblood of modern industrial and commercial...

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data center selection
By longwell / June 12, 2026 / Technical Articles

Data Center Fan Selection Guide: How to Choose the Right EC Fan?

Today’s procurement engineer isn’t just selecting an EC backward-curve...

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