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.

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

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

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

Read More »
Centrifugal Fan VS Axial Fan-Which is More Durable
By longwell / October 28, 2025 / Technical Articles

Centrifugal Fan vs. Axial Fan: Which is More Durable

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

Read More »
Fan Performance Characteristics of Centrifugal Fans
By longwell / October 28, 2025 / Technical Articles

Outstanding Characteristics of Centrifugal Fans

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

Read More »
-strong-The-Cornerstone-of-Silence-in-M
By longwell / October 18, 2025 / Technical Articles

The Cornerstone of Silence in Modern Commercial Architecture

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

Read More »
By longwell / August 6, 2025 / Technical Articles

Thinking of Upgrading Fan Motor See What Users Say

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

Read More »
Axial-Fan-for-Your-Application-in-2025
By longwell / July 8, 2025 / Technical Articles

Axial Fan for Your Application in 2025

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

Read More »
How-to-Replace-a-Bathroom-Exhaust-Fan-W
By longwell / June 27, 2025 / Technical Articles

How to Replace a Bathroom Exhaust Fan Without Risk

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

Read More »
Duct Fan 6 Inch Model
By longwell / June 17, 2025 / Technical Articles

Enhance Your Ventilation with a Duct Fan 6 Inch Model

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

Read More »
Garage-Exhaust-Fans--The-Ideal-Choice-f
By longwell / June 12, 2025 / Technical Articles

Garage Exhaust Fans: The Ideal Choice for Enhanced Ventilation

Garage Exhaust Fans: The Ideal Choice for Enhanced Ventilation Introdu...

Read More »