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.
Centrifugal fans serve as the heart of ventilation systems, providing ...
Read More »
In HVAC and industrial ventilation systems, centrifugal fans are widel...
Read More »
An OEM required a high-pressure EC centrifugal fan for a new AHU desig...
Read More »
They wanted the smaller fan. Thirty millimetres of impeller diameter w...
Read More »
Quoting IP55 would have been easier and more profitable. One question ...
Read More »
They sent three dimensions and one real question: what is your balanci...
Read More »
NINGBO, China — July 6, 2026 — Ningbo Longwell Electric Technolog...
Read More »
In industrial ventilation and HVAC systems, centrifugal fans serve as ...
Read More »
Anyone can quote a temperature range. Holding one from -40C to +60C co...
Read More »
Certification is not a sticker. The explosion-proof motor casing nearl...
Read More »
Recent Comments