Centrifugal fans build pressure by accelerating air outward through a rotating impeller, making them the workhorse for HVAC air handlers, cleanrooms, dust collection and process ventilation. Articles under this tag cover working principles, backward vs forward curved impellers, performance-curve reading, selection math and maintenance practice, with LONGWELL AC/DC/EC centrifugal fan data for reference.
A dense filter bank and a deep coil turn an air handler into a wall of...
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Selling the same machine in Europe usually means redesigning around a ...
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Industrial fans play an important role in HVAC systems, warehouses, da...
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The customer asked for a custom frame around a specific fan. The bette...
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The airflow target was achievable. Fitting it into the housing the cus...
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The customer asked for AC rather than EC, and for a single speed. Both...
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Second-sourcing is a matching exercise, not a design one. The interest...
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The customer sent photographs of a corroded impeller and caliper measu...
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High volume, moderate pressure, very little space. Those three togethe...
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Compare plug and housed centrifugal fans at the same airflow-pressure ...
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