Day: July 15, 2026

LONGWELL centrifugal fan
By longwell / July 15, 2026 / Technical Articles

Types of Centrifugal Fan Impellers Explained

In HVAC and industrial ventilation systems, centrifugal fans are widel...

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LWBE3G450-188NT-21-00
By longwell / July 15, 2026 / Engineering Case Studies

LWBE3G450-188NT-21-00 EC Centrifugal Fan for AHUs

An OEM required a high-pressure EC centrifugal fan for a new AHU desig...

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Tube axial fan, 250mm cylindrical housing, for ducted ventilation
By longwell / July 15, 2026 / Engineering Case Studies

A 250mm Tube Axial Fan on 60Hz: Reading the Duty Point Right

The catalog says 1854 m3/h. Their system will pull it back to somewher...

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