Author: longwell

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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axial fan blade
By longwell / June 24, 2026 / Engineering Case Studies

406-522mm LWA Series Axial Fan Blades for HVAC Condenser Units

An HVAC OEM required a portfolio of four robust axial fan blades (406m...

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LWIF-750U(S)-02
By longwell / June 24, 2026 / Engineering Case Studies

LWIF-750U(S)-02 Industrial Wall-Mounted Oscillating Fan for Air Circulation

Case study on a 750mm industrial wall-mounted fan for commercial air c...

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lwfa e 250 01 forward curved centrifugal fan
By longwell / June 23, 2026 / Engineering Case Studies

LWFA-E-250-01 Forward-Curved Centrifugal Fan for HVAC Air Handlers

An OEM required a 220V AC centrifugal fan for a commercial air conditi...

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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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backward curved centrifugal fan
By longwell / June 10, 2026 / Technical Articles

What is a Backward Curved Centrifugal Fan?

Among the various fan technologies available, centrifugal fans generat...

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direct drive fan vs belt drive fan
By longwell / June 4, 2026 / Technical Articles

Direct Drive vs Belt Drive Fan: Performance Comparison Guide

Industrial fans play an important role in HVAC systems, warehouses, da...

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Plug Fan vs Housed Centrifugal Fan: Compare the Installed Boundary
By longwell / May 28, 2026 / Fan Engineering Guides

Plug Fan vs Housed Centrifugal Fan: Compare the Installed Boundary

Compare plug and housed centrifugal fans at the same airflow-pressure ...

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