AC Backward-Curved Centrifugal Fan – page 2 preview

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Fans & Blowers › Centrifugal Fans › Backward-Curved Centrifugal Fan

AC Backward-Curved Centrifugal Fan 2026 catalogue (PDF)

Backward-curved wheels reach high efficiency with a non-overloading power curve; widely used in AHUs, data-centre cooling, clean rooms and heat-recovery units. AC versions run directly on mains power for simple, robust installation. This LONGWELL 2026 catalogue runs to 40 pages and lists 160 model numbers.

Pages: 40
File: PDF · 26.2 MB
Edition: 2026
Language: English
Model numbers: 160
Single-size PDFs: 16
Motor type: AC

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What’s inside

Performance curves
Noise data
Typical applications
Also available as 16 single-size PDFs (Ø133–630 mm)

Download a single size

Each file contains the pages for one impeller / frame size — smaller and faster on mobile.

Ø133 mm1 pages · 1.1 MB Ø155 mm1 pages · 1.1 MB Ø175 mm3 pages · 1.8 MB Ø180 mm2 pages · 2.1 MB Ø190 mm4 pages · 3.0 MB Ø220 mm4 pages · 2.9 MB Ø225 mm5 pages · 3.0 MB Ø250 mm7 pages · 4.0 MB Ø280 mm5 pages · 3.3 MB Ø315 mm8 pages · 4.4 MB Ø355 mm6 pages · 3.5 MB Ø400 mm4 pages · 2.3 MB Ø450 mm5 pages · 3.5 MB Ø500 mm4 pages · 2.6 MB Ø560 mm3 pages · 2.1 MB Ø630 mm2 pages · 1.8 MB

Model numbers in this catalogue (160)

Click a model number to find its datasheet, drawing and curve.

LWBA-133 LWBA-155 LWBA-175 LWBA-180 LWBA-190 LWBA-220 LWBA-225 LWBA-250 LWBA-280 LWBA-315 LWBA-355 LWBA-400 LWBA-450 LWBA-500 LWBA-560 LWBA-630 LWBA2D220-092NT-06 LWBA2D220-092NT-07 LWBA2D225-092NT-03 LWBA2D225-092NT-07 LWBA2D225-092NT-08 LWBA2D225-092NT-11 LWBA2D225-092NT-12 LWBA2D250-092NT-06 LWBA2D250-092NT-10 LWBA2D250-092NT-11 LWBA2D250-092NT-15 LWBA2D250-092NT-16 LWBA2D280-092NT-02 LWBA2D280-102NT-06 LWBA2D280-102NT-08 LWBA2D280-138NT-09 LWBA2D280-138NT-10 LWBA2D315-138NT-12 LWBA2D315-188NT-17 LWBA2D355-188NT-17 LWBA2D355-188NT-18 LWBA2E133-072NS-01 LWBA2E133-072NS-02 LWBA2E155-092NS-01 LWBA2E155-092NS-02 LWBA2E175-072NS-02 LWBA2E175-072NU-01 LWBA2E175-092NS-03 LWBA2E175-092NS-04 LWBA2E175-092NS-05 LWBA2E180-092NS-01 LWBA2E180-092NS-02 LWBA2E180-092NS-03 LWBA2E190-072NS-01 LWBA2E190-092NS-03 LWBA2E190-092NU-02 LWBA2E220-092NS-01 LWBA2E220-092NS-02 LWBA2E220-092NS-04 LWBA2E220-092NS-05 LWBA2E220-092NS-08 LWBA2E225-092NS-01 LWBA2E225-092NS-06 LWBA2E225-092NS-09 LWBA2E225-092NS-10 LWBA2E225-092NS-13 LWBA2E225-092NU-05 LWBA2E250-092NS-05 LWBA2E250-092NS-07 LWBA2E250-092NS-08 LWBA2E250-092NS-09 LWBA2E250-092NS-12 LWBA2E250-092NS-13 LWBA2E250-092NS-14 LWBA2E280-092NS-01 LWBA2E280-102NS-05 LWBA2E280-102NS-07 LWBA4D220-092NT-11 LWBA4D220-092NT-12 LWBA4D225-092NT-04 LWBA4D250-092NT-03 LWBA4D250-092NT-04 LWBA4D250-092NT-19 LWBA4D250-092NT-20 LWBA4D315-102NT-09 LWBA4D315-102NT-10 LWBA4D315-138NT-15 LWBA4D315-138NT-16 LWBA4D355-102NT-05 LWBA4D355-102NT-06 LWBA4D355-102NT-09 LWBA4D355-102NT-10 LWBA4D355-138NT-11 LWBA4D355-138NT-12 LWBA4D400-102NT-03 LWBA4D400-102NT-04 LWBA4D400-138NT-08 LWBA4D400-138NT-10 LWBA4D400-138NT-11 LWBA4D450-138NT-01 LWBA4D450-138NT-08 LWBA4D450-138NT-09 LWBA4D450-188NT-03 LWBA4D450-188NT-04 LWBA4D500-188NT-01 LWBA4D500-188NT-02 LWBA4D500-188NT-05 LWBA4D560-188NT-01 LWBA4D560-188NT-03 LWBA4D560-188NT-05 LWBA4D630-188NT-03 LWBA4E190-092NS-04 LWBA4E190-092NS-05 LWBA4E190-092NS-06 LWBA4E190-092NS-07 LWBA4E220-092NS-03 LWBA4E220-092NS-09 LWBA4E220-092NS-10 LWBA4E225-092NS-02 LWBA4E250-092NS-01 LWBA4E250-092NS-02 LWBA4E250-092NS-17 LWBA4E250-092NS-18 LWBA4E280-092NS-03 LWBA4E280-092NS-04 LWBA4E315-102NS-01 LWBA4E315-102NS-02 LWBA4E315-102NS-03 LWBA4E315-102NS-04 LWBA4E315-102NS-05 LWBA4E315-102NS-06 LWBA4E315-102NS-11 LWBA4E315-102NS-18 LWBA4E315-102NS-19 LWBA4E315-138NS-13 LWBA4E315-138NS-14 LWBA4E355-102NS-01 LWBA4E355-102NS-02 LWBA4E355-102NS-07 LWBA4E355-102NS-08 LWBA4E355-102NS-15 LWBA4E355-102NS-16 LWBA4E355-138NS-13 LWBA4E355-138NS-14 LWBA4E400-102NS-01 LWBA4E400-102NS-02 LWBA4E400-138NS-07 LWBA4E400-138NS-09 LWBA4E450-138NS-02 LWBA6D450-138NT-07 LWBA6D500-138NT-03 LWBA6D500-138NT-04 LWBA6D560-188NT-02 LWBA6D560-188NT-04 LWBA6D630-188NT-01 LWBA6E315-102NS-07 LWBA6E315-102NS-08 LWBA6E355-102NS-03 LWBA6E355-102NS-04 LWBA6E400-102NS-05 LWBA6E400-102NS-06 LWBA6E450-138NS-05 LWBA6E450-138NS-06 LWBA8D630-188NT-02

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AC Backward-Curved Centrifugal Fan 2026 catalogue (PDF)

What’s inside

Download a single size

Model numbers in this catalogue (160)

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