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Backward Curved Centrifugal Fans — Impeller Ø250–355 mm

Backward Curved Centrifugal Fans — Impeller Ø250–355 mm: 145 models. Filter by airflow, static pressure, voltage and motor platform, compare specifications side by side and add models to your RFQ.

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AllLWBE3G25021LWBE3G31017LWBE3G28015LWBE3G35512LWBA4E31511LWBA4E3558LWBA2E2507LWBA4D3556LWBA2D2505LWBA2D2805LWBD3G3105LWBA4D2504LWBA4D3154LWBA4E2504LWBA2E2803LWBD3G2503LWBA2D3152LWBA2D3552LWBA4E2802LWBA6E3152LWBA6E3552LWBD3G2802LWBE3G2702
Filter by duty point145 models in this category

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.

ViewData tableImage grid
ModelSizeMax airflowm³/hMax static pressurePaPowerWNoisedB(A)SpeedrpmVoltageV
LWBA2D250-092NT-06 LWBA2D250-092NT-06AC Ø250 mm 1,751 721 290 77 2,800 380 Details
LWBA2D250-092NT-10 LWBA2D250-092NT-10AC Ø250 mm 1,288 597 160 74 2,450 380 Details
LWBA2D250-092NT-11 LWBA2D250-092NT-11AC Ø250 mm 1,185 773 185 76 2,600 380 Details
LWBA2D250-092NT-15 LWBA2D250-092NT-15AC Ø250 mm 1,421 618 150 76 2,450 380 Details
LWBA2D250-092NT-16 LWBA2D250-092NT-16AC Ø250 mm 1,499 773 200 79 2,550 380 Details
LWBA2D280-092NT-02 LWBA2D280-092NT-02AC Ø280 mm 1,700 721 200 79 2,500 380 Details
LWBA2D280-102NT-06 LWBA2D280-102NT-06AC Ø280 mm 1,833 773 250 80 2,650 380 Details
LWBA2D280-102NT-08 LWBA2D280-102NT-08AC Ø280 mm 2,163 773 330 80 2,700 380 Details
LWBA2D280-138NT-09 LWBA2D280-138NT-09AC Ø280 mm 2,678 917 500 78 2,750 380 Details
LWBA2D280-138NT-10 LWBA2D280-138NT-10AC Ø280 mm 2,833 927 680 80 2,900 380 Details
LWBA2D315-138NT-12 LWBA2D315-138NT-12AC Ø315 mm 3,605 927 800 84 2,750 380 Details
LWBA2D315-188NT-17 LWBA2D315-188NT-17AC Ø315 mm 4,120 1,082 1,300 85 2,650 380 Details
LWBA2D355-188NT-17 LWBA2D355-188NT-17AC Ø355 mm 4,635 1,339 1,600 90 2,700 380 Details
LWBA2D355-188NT-18 LWBA2D355-188NT-18AC Ø355 mm 5,974 1,339 2,500 90 2,700 380 Details
LWBA2E250-092NS-05 LWBA2E250-092NS-05AC Ø250 mm 1,751 721 290 76 2,650 230 Details
LWBA2E250-092NS-07 LWBA2E250-092NS-07AC Ø250 mm 1,470 714 151 72.7 2,700 230 Details
LWBA2E250-092NS-08 LWBA2E250-092NS-08AC Ø250 mm 1,288 597 135 74 2,450 230 Details
LWBA2E250-092NS-09 LWBA2E250-092NS-09AC Ø250 mm 1,185 773 190 76 2,600 230 Details
LWBA2E250-092NS-12 LWBA2E250-092NS-12AC Ø250 mm 1,185 567 130 76 2,650 230 Details
LWBA2E250-092NS-13 LWBA2E250-092NS-13AC Ø250 mm 1,421 618 155 76 2,500 230 Details
LWBA2E250-092NS-14 LWBA2E250-092NS-14AC Ø250 mm 1,499 773 210 79 2,600 230 Details
LWBA2E280-092NS-01 LWBA2E280-092NS-01AC Ø280 mm 1,700 721 230 79 2,450 230 Details
LWBA2E280-102NS-05 LWBA2E280-102NS-05AC Ø280 mm 1,833 773 250 80 2,650 230 Details
LWBA2E280-102NS-07 LWBA2E280-102NS-07AC Ø280 mm 2,163 773 330 80 2,700 230 Details
LWBA4D250-092NT-03 LWBA4D250-092NT-03AC Ø250 mm 700 180 53 61 1,400 380 Details
LWBA4D250-092NT-04 LWBA4D250-092NT-04AC Ø250 mm 824 227 58 64 1,600 380 Details
LWBA4D250-092NT-19 LWBA4D250-092NT-19AC Ø250 mm 855 165 50 68 1,450 380 Details
LWBA4D250-092NT-20 LWBA4D250-092NT-20AC Ø250 mm 1,004 221 60 70 1,600 380 Details
LWBA4D315-102NT-09 LWBA4D315-102NT-09AC Ø315 mm 1,957 309 136 63 1,400 380 Details
LWBA4D315-102NT-10 LWBA4D315-102NT-10AC Ø315 mm 2,163 412 175 65 1,560 380 Details
LWBA4D315-138NT-15 LWBA4D315-138NT-15AC Ø315 mm 2,318 371 220 64 1,450 380 Details
LWBA4D315-138NT-16 LWBA4D315-138NT-16AC Ø315 mm 2,781 515 300 68 1,650 380 Details
LWBA4D355-102NT-05 LWBA4D355-102NT-05AC Ø355 mm 2,524 381 170 63 1,400 380 Details
LWBA4D355-102NT-06 LWBA4D355-102NT-06AC Ø355 mm 2,812 515 250 65 1,500 380 Details
LWBA4D355-102NT-09 LWBA4D355-102NT-09AC Ø355 mm 2,936 464 200 65 1,380 380 Details
LWBA4D355-102NT-10 LWBA4D355-102NT-10AC Ø355 mm 3,245 515 270 67 1,600 380 Details
LWBA4D355-138NT-11 LWBA4D355-138NT-11AC Ø355 mm 3,399 464 360 72 1,450 380 Details
LWBA4D355-138NT-12 LWBA4D355-138NT-12AC Ø355 mm 4,017 618 550 77 1,700 380 Details
LWBA4E250-092NS-01 LWBA4E250-092NS-01AC Ø250 mm 700 180 53 61 1,400 230 Details
LWBA4E250-092NS-02 LWBA4E250-092NS-02AC Ø250 mm 824 227 58 64 1,600 230 Details
Certifications for this product line
CE-LVD ×3ETL ×2CE-EMCRoHS ×3
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About this size range

This size range of Backward Curved Centrifugal Fans covers Ø250 mm, Ø270 mm, Ø280 mm, Ø310 mm, Ø315 mm and Ø355 mm in the LWBE3G250, LWBE3G310, LWBE3G280, LWBE3G355, LWBA4E315 and LWBA4E355 (and 18 more) series: 145 models, 577–8,034 m³/h, static pressure to 2,523 Pa, on AC, EC and DC motors at 230 V, 380 V, 115 V, 48 V and 400 V. 142 have a measured curve for duty-point selection.

The AHU and CRAH workhorse sizes with aluminium impellers — LWBE3G250 / 280 / 310 / 355 are the most stocked EC centrifugal fans.

Selection guide and FAQ: Backward Curved Centrifugal Fans.

Related selections

Backward Curved Centrifugal Fans Impeller Ø133–225 mmBackward Curved Centrifugal Fans Impeller Ø400–560 mm All Backward Curved Centrifugal Fans All Centrifugal Fans AC Impeller Ø250–355 mmEC Impeller Ø250–355 mmDC Impeller Ø250–355 mm Impeller Ø250–355 mm 230 VImpeller Ø250–355 mm 380 VImpeller Ø250–355 mm 115 VImpeller Ø250–355 mm 48 VImpeller Ø250–355 mm 400 V impeller Ø250–355 mm 1,500 m³/himpeller Ø250–355 mm 2,200 m³/himpeller Ø250–355 mm 3,200 m³/h Fan selector by duty point Impeller Ø250–355 mm datasheets & drawings
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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