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A Quick Rundown on Industrial Fan Performance Testing

By In Blog On June 1, 2021


Industrial fan systems are a worthy investment for your industrial plant as they ensure smooth and regulated airflow. As with any equipment at your facility, you need your fans to perform at their highest level of efficiency.

Generally, manufacturers randomize their fan performance tests, which means that a few bad apples that weren’t tested might reach the end consumer. But how can you determine your fan’s performance?

Most people find it easier to narrow down their fan options by selecting the most popular types and models in the market. However, fan selection should always depend on your needs and the demands of your industrial processes.

Your fan service expert is in a better position to help you assess a fan’s performance. They’ll use the fan’s ability to exchange, redirect, replenish and distribute to guide your decision.

Various Performance Tests 

The Air Movement and Air Control Association (AMCA) established standard tests for industrial fan manufacturing to ensure uniformity. The test results indicate a fan’s performance and is aimed to help you choose the right one for your needs. The three aspects of these tests include:

  • Air volume flow rate
  • Static pressure
  • Brake horsepower

Test results for these three parameters will help you examine your fan’s capability limits. With the right outcome, you can be sure of your fan’s ability to function at optimum efficiency.

Air Volume Flow Rate

The air volume flow rate takes into account how much airflow the fan can handle. Standard measurements quantify the flow rate in cubic feet per minute (CFM).

During the testing process, the pressure at strategic points is measured, and the motor current is recorded. The aim is to get a specific airflow value within the fan’s operational limits.

The amount of airflow will differ from industry to industry. But the space available for flow will always dictate the rate and volume of airflow. Such a consideration will be essential for you, especially if you run an industrial firm requiring constant removal of accumulated fumes.

A fan with a high volumetric flow rate keeps your air clean and safe in your workplace. Your fan service provider will perform the flow rate test to ensure that your investment will be a good fit for your industrial plant. 

Static Pressure 

When your fan blows air in a specific direction, it faces some resistance. The fan has to blow against this resistance to keep the air flowing. Static pressure is a representation of this resistance and is measured in pascal (Pa) units.

Typically, the more resistance an industrial fan faces, the more power the fan will use. Eventually, your fan will deliver a lesser volume of air than it should. Static pressure is crucial in assessing a fan’s performance since it tells you how well the fan can do its job.

Your fan service professional will use pressure gauging equipment to test static pressure and mathematically analyze the static value. However, remember that air density affects the consistency of static pressure, depending on the humidity, altitude, and temperature conditions. 

Brake Horsepower 

Brake horsepower (BHP) is the operating power of an industrial fan. BHP represents the power that your fan requires. Usually, the manufacturer will have the BHP value shown on the fan.

You can use this value to pick an ideal fan motor size and determine power consumption at specific points. A service expert can accurately measure your fan’s BHP and let you know what amount of efficiency you can expect. 

Before you invest in a fan system for your industrial plant, performance testing is vital in ensuring you get what you pay for. For more information about industrial fans, reach out to Compressor-Pump & Service, Inc. today.


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