Stay tuned for informative blogs covering Hartzell’s products, services, industry insights, and customer stories, showcasing our expertise and commitment to you.
September 2026
A published fan curve describes the fan under lab conditions, not your ductwork. Here's how to read one for what it actually tells you: where the duty point sits, what the fan laws do when speed or density changes, and the two things printed on every sheet that decide whether the curve applies to you.
September 2026
When an airstream carries combustible dust or flammable vapor, the fan is often the one part fast enough to ignite it. Here's how to specify spark-resistant construction from the airstream up, including what changes when the fan is fiberglass and the AMCA types don't fit.
August 2026
When a system fights back with filters, long duct runs, and tight bends, a standard industrial fan can run out of pressure long before it runs out of air. A pressure blower is the same family of equipment built to develop the higher static pressure those systems demand. This post covers where the pressure ceiling sits, what makes a blower different, the applications that need one, and the numbers to have ready before you spec.
August 2026
The words fan and blower get used interchangeably on the plant floor, and most of the time that is fine. But there's a real technical difference: it comes down to pressure ratio. A blower is not a separate machine; it is a fan engineered for higher static pressure. This post breaks down the pressure-ratio distinction, why the terminology gets blurred, and how to match the right type, axial, centrifugal, or high-pressure blower, to your actual application.
