Technical Articles

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

LONGWELL cross flow fan
By longwell / July 24, 2026 / Technical Articles

What is a Cross Flow Fan?

A cross flow fan is a type of blower designed to provide a wide and un...

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server rack cooling
By longwell / July 23, 2026 / Technical Articles

Server Rack Cooling Guide: 9 Best Practices for Reliable Data Center Performance

As AI computing, cloud services, and edge computing continue to push h...

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LONGWELL factory
By longwell / July 22, 2026 / Technical Articles

Centrifugal Fan OEM: What to Ask Your Manufacturer?

When you are deciding which centrifugal fan to use in the systems, you...

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LONGWELL duct fan
By longwell / July 21, 2026 / Technical Articles

How to Install a Duct Fan: Step-by-Step Guide

The ducts in HVAC systems are usually long. When the airflow goes thro...

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LONGWELL EC motors
By longwell / July 18, 2026 / Technical Articles

EC Motor Efficiency Explained for HVAC Systems

Electric motors served as the driving components of HVAC systems. Thei...

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centrifugal fan maintenance
By longwell / July 17, 2026 / Technical Articles

Centrifugal Fan Maintenance: Annual Inspection Checklist & Tips

Centrifugal fans serve as the heart of ventilation systems, providing ...

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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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erp 2026 fan compliance
By longwell / July 14, 2026 / Technical Articles

ErP 2026 Fan Compliance Guide for EU HVAC Buyers: New Efficiency Requirements & Compliance

The European Union is implementing a more tightening regulation for in...

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metal duct fan vs plastic
By longwell / July 10, 2026 / Technical Articles

Metal vs Plastic Duct Fan: Which is Better for Industrial Use?

In industrial ventilation systems, ducts are usually quite long, and s...

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LONGWELL DUCT FAN
By longwell / July 9, 2026 / Technical Articles

How to Increase Airflow in Ductwork?

When talking about HVAC, air conditioning is mostly considered. Howeve...

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