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.

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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
LWBD3G310-092NH-02 LWBD3G310-092NH-02DC Ø310 mm 2,266 391 120 72 1,600 48 Details
LWBD3G310-092NM-01 LWBD3G310-092NM-01DC Ø310 mm 2,266 391 120 72 1,600 24 Details
LWBD3G310-092NZ-05 LWBD3G310-092NZ-05DC Ø310 mm 2,235 474 160 75 1,850 310 Details
LWBD3G310-102NH-03 LWBD3G310-102NH-03DC Ø310 mm 2,163 510 192 73 1,900 48 Details
LWBD3G310-102NH-04 LWBD3G310-102NH-04DC Ø310 mm 2,524 530 230 75 1,970 48 Details
LWBE3G310-072NS-07 LWBE3G310-072NS-07EC Ø310 mm 2,266 700.4 175 66 1,810 230 Details
LWBE3G310-072NS-21 LWBE3G310-072NS-21EC Ø310 mm 2,266 618 175 72 1,710 230 Details
LWBE3G310-072NU-27 LWBE3G310-072NU-27EC Ø310 mm 2,266 700.4 175 66 1,810 115 Details
LWBE3G310-092NS-17 LWBE3G310-092NS-17EC Ø310 mm 2,410 443 150 75 1,750 230 Details
LWBE3G310-092NS-20 LWBE3G310-092NS-20EC Ø310 mm 2,235 474 160 75 1,850 230 Details
LWBE3G310-092NS-22 LWBE3G310-092NS-22EC Ø310 mm 2,678 607.7 175 63 1,500 230 Details
LWBE3G310-092NS-23 LWBE3G310-092NS-23EC Ø310 mm 2,523.5 669.5 220 66 2,050 230 Details
LWBE3G310-092NU-28 LWBE3G310-092NU-28EC Ø310 mm 2,678 607.7 175 63 1,500 115 Details
LWBE3G310-092NU-29 LWBE3G310-092NU-29EC Ø310 mm 2,523.5 669.5 220 66 2,050 115 Details
LWBE3G310-102NS-09 LWBE3G310-102NS-09EC Ø310 mm 4,120 1,081.5 700 85 2,960 230 Details
LWBE3G310-102NS-16 LWBE3G310-102NS-16EC Ø310 mm 2,868.6 630 285 70 2,150 230 Details
LWBE3G310-102NS-18 LWBE3G310-102NS-18EC Ø310 mm 2,884 963 450 78 2,600 230 Details
LWBE3G310-102NS-19 LWBE3G310-102NS-19EC Ø310 mm 2,936 700 370 76 2,300 230 Details
LWBE3G310-102NT-24 LWBE3G310-102NT-24EC Ø310 mm 5,150 1,730.4 1,100 85 3,000 380 Details
LWBE3G310-102NU-30 LWBE3G310-102NU-30EC Ø310 mm 3,399 979 400 70 2,300 115 Details
LWBE3G310-138NT-05 LWBE3G310-138NT-05EC Ø310 mm 4,398.1 824 980 74 2,600 400 Details
LWBE3G310-138NT-25 LWBE3G310-138NT-25EC Ø310 mm 5,592.9 1,082 1,588 92 3,300 400 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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