Model-level technical releases: dimensions, airflow and pressure ratings, speed, electrical data and curves for LONGWELL fan platforms. Use these datasheet posts to shortlist models before requesting full selection support against your duty point.
Why can two fan curves show the same airflow but different pressure? T...
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An FEI of 1.25 does not mean 125% efficiency. This engineering walkthr...
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Can another EC centrifugal fan replace an ebm-papst or Ziehl-Abegg uni...
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How do you use a fan performance curve to select the right fan? This e...
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Convert airflow without losing a factor of 60. This visual engineering...
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A fan curve only means something when you know how it was produced. Th...
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Sound power belongs to the fan. Sound pressure belongs to the room. Co...
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Insulation class sets the temperature a winding can survive. Temperatu...
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IP ratings look simple until you need one. Here is what each digit act...
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FEG rated the fan. FEI rates the selection. That single difference exp...
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