Forward Curved Centrifugal Fans

Forward curved (multi-vane) impellers move more air at the same outer diameter in a compact envelope, ideal for space-constrained equipment integration; available single inlet with housing, dual inlet and free-running. Final selection is confirmed at the duty point (airflow / static pressure / voltage / control mode) and by project verification.

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Filters use nameplate maximum values (max airflow at zero static pressure, max static pressure at zero airflow). Check the actual operating point on the performance curve of each model.

ModelSizeMax airflowm³/hMax static pressurePaPowerWNoisedB(A)SpeedrpmVoltageV
LWFA4D250-138NT-01 LWFA4D250-138NT-01AC Ø250 mm 2,369 406.85 870 72 1,400 380 Details
LWFA4E250-138NS-02 LWFA4E250-138NS-02AC Ø250 mm 2,575 401.7 900 72 1,330 220 Details
LWFA6D250-102NT-03 LWFA6D250-102NT-03AC Ø250 mm 1,751 164.8 320 62 910 380 Details
LWFA6E250-102NS-04 LWFA6E250-102NS-04AC Ø250 mm 1,751 164.8 320 62 900 220 Details
Certifications for this product line
CE-LVD ×3ETL ×2CE-EMCRoHS ×3
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Ningbo Longwell Electric Technology Co., Ltd. · No. 100 Henan Road, Ditang, Yuyao, Ningbo, Chinasales@longwellfans.com · WhatsApp +86 183 5827 4663 · Mon–Fri 8:30–17:30 (UTC+8), reply within 1 business dayHow to order · Privacy notice
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