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
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
LWBA6E315-102NS-07 LWBA6E315-102NS-07AC Ø315 mm 1,030 155 75 58 940 230 Details
LWBA6E315-102NS-08 LWBA6E315-102NS-08AC Ø315 mm 1,133 185 85 60 1,050 230 Details
LWBA6E355-102NS-03 LWBA6E355-102NS-03AC Ø355 mm 1,257 175 100 60 930 230 Details
LWBA6E355-102NS-04 LWBA6E355-102NS-04AC Ø355 mm 1,442 206 130 61 1,080 230 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
LWBD3G220-092NH-05 LWBD3G220-092NH-05DC Ø220 mm 1,030 577 110 73 3,100 48 Details
LWBD3G220-092NM-04 LWBD3G220-092NM-04DC Ø220 mm 1,030 577 110 73 3,100 24 Details
LWBD3G225-092NH-05 LWBD3G225-092NH-05DC Ø225 mm 1,092 515 100 72 2,700 48 Details
LWBD3G225-092NH-06 LWBD3G225-092NH-06DC Ø225 mm 1,030 515 100 70 2,700 48 Details
LWBD3G225-092NM-04 LWBD3G225-092NM-04DC Ø225 mm 1,092 515 100 72 2,700 24 Details
LWBD3G250-072NZ-07 LWBD3G250-072NZ-07DC Ø250 mm 1,483 597 110 69 2,800 310 Details
LWBD3G250-092NH-06 LWBD3G250-092NH-06DC Ø250 mm 1,442 690 160 79 3,000 48 Details
LWBD3G280-092NH-04 LWBD3G280-092NH-04DC Ø280 mm 1,648 608 130 72 2,400 48 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
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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