Fan Performance Curves

A fan curve plots pressure against airflow at fixed speed; where it crosses the system resistance curve is the real operating point. Learn to read total vs static pressure curves, spot stall regions, apply fan laws for speed changes and understand why catalogue and field numbers differ.

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By longwell / October 31, 2025 / News

【Market Insight】Heatwave Driven! China’s AC Exports to EU Surge 43.2%, Longwell EC Technology Perfectly Matches Europe’s Strict Demands

【Market Insight】Heatwave Driven! China’s AC Exports to EU Surge 43.2%,...

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How to Balance a Centrifugal Fan: Step-by-Step Guide
By longwell / October 29, 2025 / News

How to Balance a Centrifugal Fan: Step-by-Step Guide

A vibrating centrifugal fan does not automatically need a balance weig...

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By longwell / October 28, 2025 / News

Centrifugal Fan vs. Axial Fan: Which is More Durable

If you want a fan with a long lifespan, you should consider a centrifu...

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Fan Performance Characteristics of Centrifugal Fans
By longwell / October 28, 2025 / Research

Outstanding Characteristics of Centrifugal Fans

Centrifugal fan performance characteristics show how well a system mov...

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By longwell / October 18, 2025 / News

The Cornerstone of Silence in Modern Commercial Architecture

The Cornerstone of Silence in Modern Commercial Architecture —Integrat...

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By longwell / August 6, 2025 / News

Thinking of Upgrading Fan Motor See What Users Say

See what users say about Longwell fan motor upgrades—performance, ener...

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By longwell / July 8, 2025 / News

Axial Fan for Your Application in 2025

How to Choose the Right Axial Fan for Your Application in 2025 Axial F...

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By longwell / June 27, 2025 / News

How to Replace a Bathroom Exhaust Fan Without Risk

How to Replace a Bathroom Exhaust Fan Without Risk If you’re wondering...

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Duct Fan 6 Inch Model
By longwell / June 17, 2025 / News

Enhance Your Ventilation with a Duct Fan 6 Inch Model

Key Highlights The 6-inch duct fan helps move air around well. This he...

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By longwell / June 12, 2025 / News

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