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
LWBA4E315-102NS-11 LWBA4E315-102NS-11AC Ø315 mm 1,957 319 115 63 1,350 230 Details
LWBA4E315-102NS-18 LWBA4E315-102NS-18AC Ø315 mm 2,079 399 153 69.6 1,550 230 Details
LWBA4E315-102NS-19 LWBA4E315-102NS-19AC Ø315 mm 1,859 294 116 67.4 1,390 230 Details
LWBA4E315-138NS-13 LWBA4E315-138NS-13AC Ø315 mm 2,318 371 220 64 1,450 230 Details
LWBA4E315-138NS-14 LWBA4E315-138NS-14AC Ø315 mm 2,781 515 300 68 1,650 230 Details
LWBA4E355-102NS-01 LWBA4E355-102NS-01AC Ø355 mm 2,524 381 165 63 1,400 230 Details
LWBA4E355-102NS-02 LWBA4E355-102NS-02AC Ø355 mm 2,812 515 245 65 1,460 230 Details
LWBA4E355-102NS-07 LWBA4E355-102NS-07AC Ø355 mm 2,936 464 210 65 1,350 230 Details
LWBA4E355-102NS-08 LWBA4E355-102NS-08AC Ø355 mm 3,245 515 280 67 1,550 230 Details
LWBA4E355-102NS-15 LWBA4E355-102NS-15AC Ø355 mm 3,035 546 268 73.8 1,635 230 Details
LWBA4E355-102NS-16 LWBA4E355-102NS-16AC Ø355 mm 2,636 410 203 69.9 1,425 230 Details
LWBA4E355-138NS-13 LWBA4E355-138NS-13AC Ø355 mm 3,399 464 400 72 1,400 230 Details
LWBA4E355-138NS-14 LWBA4E355-138NS-14AC Ø355 mm 4,017 618 600 77 1,700 230 Details
LWBA4E400-102NS-01 LWBA4E400-102NS-01AC Ø400 mm 2,936 464 260 64 1,350 230 Details
LWBA4E400-102NS-02 LWBA4E400-102NS-02AC Ø400 mm 3,090 515 330 68 1,450 230 Details
LWBA4E400-138NS-07 LWBA4E400-138NS-07AC Ø400 mm 4,532 494 550 69 1,380 230 Details
LWBA4E400-138NS-09 LWBA4E400-138NS-09AC Ø400 mm 4,120 494 430 66 1,380 230 Details
LWBA4E450-138NS-02 LWBA4E450-138NS-02AC Ø450 mm 6,077 618 800 76 1,350 230 Details
LWBA6D450-138NT-07 LWBA6D450-138NT-07AC Ø450 mm 4,017 309 300 60 920 380 Details
LWBA6D500-138NT-03 LWBA6D500-138NT-03AC Ø500 mm 5,356 361 450 63 950 380 Details
LWBA6D500-138NT-04 LWBA6D500-138NT-04AC Ø500 mm 5,817 412 550 65 1,050 380 Details
LWBA6D560-188NT-02 LWBA6D560-188NT-02AC Ø560 mm 9,270 464 900 73 910 380 Details
LWBA6D560-188NT-04 LWBA6D560-188NT-04AC Ø560 mm 9,270 464 900 73 910 380 Details
LWBA6D630-188NT-01 LWBA6D630-188NT-01AC Ø630 mm 12,360 494 1,500 80 900 380 Details
LWBA6E400-102NS-05 LWBA6E400-102NS-05AC Ø400 mm 2,163 216 135 56 940 230 Details
LWBA6E400-102NS-06 LWBA6E400-102NS-06AC Ø400 mm 2,421 278 155 57 1,050 230 Details
LWBA6E450-138NS-05 LWBA6E450-138NS-05AC Ø450 mm 4,017 309 260 60 930 230 Details
LWBA6E450-138NS-06 LWBA6E450-138NS-06AC Ø450 mm 4,450 381 350 61 1,050 230 Details
LWBA8D630-188NT-02 LWBA8D630-188NT-02AC Ø630 mm 9,270 288 700 72 700 380 Details
LWBD3G280-092NH-05 LWBD3G280-092NH-05DC Ø280 mm 1,854 433 135 69 2,000 48 Details
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
LWBD3G355-102NH-04 LWBD3G355-102NH-04DC Ø355 mm 2,421 499 205 75 1,600 48 Details
LWBD3G400-102NH-03 LWBD3G400-102NH-03DC Ø400 mm 3,059 433 190 73 1,260 48 Details
LWBE3G250-102NS-10 LWBE3G250-102NS-10EC Ø250 mm 2,472 1,545 520 85 3,650 230 Details
LWBE3G250-102NS-20 LWBE3G250-102NS-20EC Ø250 mm 3,038.5 1,442 750 93 4,100 230 Details
LWBE3G250-102NT-21 LWBE3G250-102NT-21EC Ø250 mm 3,708 1,751 1,000 92 3,860 380 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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