Centrifugal Fans
Centrifugal fans for duties that must overcome coils, filters and long duct runs: AHU / RTU, data-center CRAH, dust extraction and process ventilation. The LONGWELL centrifugal platform covers backward curved, forward curved and plug-fan (RLM) constructions on AC / DC / EC motors. Final selection is confirmed at the duty point (airflow / static pressure / voltage / control mode) and by project verification.
| Model | Size | Max airflowm³/h | Max static pressurePa | PowerW | NoisedB(A) | Speedrpm | VoltageV | ||
|---|---|---|---|---|---|---|---|---|---|
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LWFD3G140-072SH-01DC | Ø140 mm | 464 | 453 | 80 | 65 | 1,800 | 48 | Details |
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LWFD3G140-072SH-02DC | Ø140 mm | 464 | 453 | 80 | 65 | 1,800 | 48 | Details |
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LWFD3G140-072SM-01DC | Ø140 mm | 464 | 453 | 80 | 65 | 1,800 | 24 | Details |
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LWFD3G140-072SM-02DC | Ø140 mm | 464 | 453 | 80 | 65 | 1,800 | 24 | Details |
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LWFD3G140-072SZ-01DC | Ø140 mm | 464 | 453 | 80 | 71 | 1,800 | 310 | Details |
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LWFD3G140-072SZ-02DC | Ø140 mm | 464 | 453 | 80 | 71 | 1,800 | 310 | Details |





