Backward Curved Centrifugal Fans

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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
LWBE3G355-138NT-27 LWBE3G355-138NT-27EC Ø355 mm 6,249 1,353 1,500 77 2,710 400 Details
LWBE3G355-188NT-26 LWBE3G355-188NT-26EC Ø355 mm 8,034 1,545 3,090 96 3,200 400 Details
LWBE3G355-188NT-29 LWBE3G355-188NT-29EC Ø355 mm 6,756 2,523.5 3,100 96 3,800 380 Details
LWBE3G400-102NS-02 LWBE3G400-102NS-02EC Ø400 mm 3,914 556.2 330 70 1,430 230 Details
LWBE3G400-102NS-11 LWBE3G400-102NS-11EC Ø400 mm 6,489 978.5 700 85 1,800 230 Details
LWBE3G400-102NS-14 LWBE3G400-102NS-14EC Ø400 mm 4,463 420 297 62 1,250 230 Details
LWBE3G400-102NS-15 LWBE3G400-102NS-15EC Ø400 mm 5,476 600 500 68 1,520 230 Details
LWBE3G400-102NS-16 LWBE3G400-102NS-16EC Ø400 mm 3,554 546 300 76 1,460 230 Details
LWBE3G400-138NT-12 LWBE3G400-138NT-12EC Ø400 mm 7,459 840 1,480 71 1,100 400 Details
LWBE3G400-188NT-17 LWBE3G400-188NT-17EC Ø400 mm 9,682 1,627 2,060 84 2,650 400 Details
LWBE3G450-102NS-19 LWBE3G450-102NS-19EC Ø450 mm 7,467.5 1,030 700 80 1,450 230 Details
LWBE3G450-102NS-21 LWBE3G450-102NS-21EC Ø450 mm 5,050 417 320 68 1,400 230 Details
LWBE3G450-102NT-20 LWBE3G450-102NT-20EC Ø450 mm 8,652 1,390.5 1,100 93 1,500 380 Details
LWBE3G450-138NT-08 LWBE3G450-138NT-08EC Ø450 mm 7,828 824 910 75 1,720 400 Details
LWBE3G450-138NT-11 LWBE3G450-138NT-11EC Ø450 mm 5,329 452 386 73 1,200 400 Details
LWBE3G450-138NT-12 LWBE3G450-138NT-12EC Ø450 mm 7,182 730 900 72 1,610 400 Details
LWBE3G450-188NT-14 LWBE3G450-188NT-14EC Ø450 mm 8,985 840 2,400 70 2,600 400 Details
LWBE3G450-188NT-15 LWBE3G450-188NT-15EC Ø450 mm 7,425 1,568 1,590 70 2,400 400 Details
LWBE3G450-188NT-16 LWBE3G450-188NT-16EC Ø450 mm 8,019 1,802 2,060 74 2,600 400 Details
LWBE3G450-188NT-17 LWBE3G450-188NT-17EC Ø450 mm 8,661 2,114 2,595 85 2,800 400 Details
LWBE3G450-188NT-21 LWBE3G450-188NT-21EC Ø450 mm 12,647 2,342 4,600 96 2,800 380 Details
LWBE3G450-188NT-22 LWBE3G450-188NT-22EC Ø450 mm 10,752 1,669 2,400 92 2,400 380 Details
LWBE3G500-138NT-13 LWBE3G500-138NT-13EC Ø500 mm 8,137 464 870 71 1,100 400 Details
LWBE3G500-188NT-08 LWBE3G500-188NT-08EC Ø500 mm 14,214 886 3,000 89 1,800 400 Details
LWBE3G500-188NT-09 LWBE3G500-188NT-09EC Ø500 mm 12,243 1,265 3,160 78 2,000 400 Details
LWBE3G500-188NT-10 LWBE3G500-188NT-10EC Ø500 mm 13,472 1,541 4,200 66 2,200 400 Details
LWBE3G500-188NT-14 LWBE3G500-188NT-14EC Ø500 mm 10,305 903 1,900 72 1,705 400 Details
LWBE3G560-188NT-01 LWBE3G560-188NT-01EC Ø560 mm 16,039 1,166 3,300 63 1,610 400 Details
LWBE3G560-188NT-09 LWBE3G560-188NT-09EC Ø560 mm 16,480 886 2,770 81 1,520 400 Details
LWBE3G560-188NT-10 LWBE3G560-188NT-10EC Ø560 mm 14,879 1,013 2,420 85 1,500 400 Details
LWBE3G560-188NT-14 LWBE3G560-188NT-14EC Ø560 mm 19,760 1,545 4,700 91 1,850 380 Details
LWBE3G560-218NT-13 LWBE3G560-218NT-13EC Ø560 mm 23,896 1,442 5,600 85 1,800 400 Details
LWBE3G630-188NT-06 LWBE3G630-188NT-06EC Ø630 mm 19,247 887 2,195 66 1,300 400 Details
LWBE3G630-188NT-07 LWBE3G630-188NT-07EC Ø630 mm 21,100 1,071 2,955 85 1,380 400 Details
LWBE3G630-188NT-09 LWBE3G630-188NT-09EC Ø630 mm 21,742 1,677 5,600 75 1,780 400 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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