Backward Curved Centrifugal Fans

Backward curved impellers give the best efficiency in the high static pressure region, suited to AHU, RTU, CRAH units and the clean side of dust collectors. The third-generation LWBE3G platform uses a bionic blade profile, covering impellers Ø190–710 mm and static pressures up to about 1,800 Pa. Final selection is confirmed at the duty point (airflow / static pressure / voltage / control mode) and by project verification.

Filter by duty point3 models match · series LWBA4D500
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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
LWBA4D500-188NT-01 LWBA4D500-188NT-01AC Ø500 mm 8,034 618 1,000 79 1,350 380 Details
LWBA4D500-188NT-02 LWBA4D500-188NT-02AC Ø500 mm 9,785 773 1,500 80 1,400 380 Details
LWBA4D500-188NT-05 LWBA4D500-188NT-05AC Ø500 mm 9,377 872 1,300 81.9 1,350 380 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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