ImpellerØ250 mm9.8 in
Max airflow2,100 m³/h1,236 CFM
Max static pressure215 Pa0.86 in. wg
Noise64 dB(A)

LWFA-E-250-02 LWFA Series Direct Drive Centrifugal Blower Ø250 mm

Ø250 mm | AC | Max airflow 2,100 m³/h | Max static pressure 215 Pa | 64 dB(A)

SKU: LWFA-E-250-02 Categories: Commercial Centrifugal Blowers, Impeller Ø178–254 mm

Factory direct
OEM / ODM
Samples in 1–3 days
Production 15–30 days
18-month warranty
CE · ETL · RoHS

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WhatsApp / Phone+86 183 5827 4663 E-mail an engineersales@longwellfans.com All files for LWFA-E-250-02drawings · curves · datasheet

Samples 1–3 days · fee credited to your order
From ~30 pcs for a first validation order
T/T 30 / 70 · FOB / CIF / DDP
100% tested · 18-month warranty
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Required airflow Required static pressure

Digitised from the catalogue curve at standard air (20 °C, 101.3 kPa, 1.2 kg/m³); one curve per voltage / speed grade. The system resistance curve depends on the actual ductwork — confirm the operating point on site. Need an engineer to verify the duty point? Contact us or add the model to your RFQ and note the duty point.

LWFA-E-250-02 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWFA-E-250-02 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

Series catalogue

PDFLWFA LWFA Series Direct Driven centrifugal blower · 1.4 MB

Covers the whole series, not only this model.

Need a non-standard size or another format? Ask an engineer or search the download center.

LWFA-E-250-02 is a LONGWELL LWFA Series Direct Drive Centrifugal Blower from the Impeller Ø178–254 mm range, impeller Ø250 mm, maximum airflow 2,100 m³/h, maximum static pressure 215 Pa, noise 64 dB(A). The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.

Technical data

Model	LWFA-E-250-02
Motor type	AC
Max. airflow	2,100 m³/h
Max. static pressure	215 Pa
Noise	64 dB(A)
Impeller diameter	Ø250 mm
Blade diameter	250mm

Typical applications

Commercial kitchen extraction
Ventilation units and AHUs
Process and fume extraction

Nameplate values: maximum airflow is measured at zero static pressure and maximum static pressure at zero airflow; the two never occur together. Confirm the operating point on the performance curve. Final selection is subject to the duty point (airflow / static pressure / voltage / control mode) and project verification.

Alternatives with the same impeller (Ø250 mm · AC)

Same impeller, different speed grade, power or wiring. Step up for more airflow, step down for lower noise.

Model	Max airflow	Max static pressure	Speed	Power	Noise	Voltage
LWFA-E-250-02 this model	2,100 m³/h	215 Pa	—	—	64 dB(A)	—
LWA-250(10")U(S)M-01	28 m³/h	see curve	1,350 rpm	80 W	—	110-120 V	View
LWA-250(10")U(S)M-02	48 m³/h	see curve	2,800 rpm	230 W	—	110-120 V	View
LWDA-250S-MBN-10	1,034 m³/h	515 Pa	2,615 rpm	165 W	71 dB(A)	230 V	View
LWDA-250 (10")U-MWN-01	1,219 m³/h	see curve	3,000 rpm	228 W	69 dB(A)	110-120 V	View
LWDA-250 (10")U-MWN-03	1,219 m³/h	see curve	3,000 rpm	228 W	62 dB(A)	110-120 V	View
LWDA-250(8'')S-PWN-05	1,600 m³/h	420 Pa	2,500 rpm	175 W	50 dB(A)	230 V	View
LWFA6E250-102NS-04	1,751 m³/h	164.8 Pa	900 rpm	320 W	62 dB(A)	220 V	View
LWFA6D250-102NT-03	1,751 m³/h	164.8 Pa	910 rpm	320 W	62 dB(A)	380 V	View
LWDA-250 (10")S-MWN-02	1,900 m³/h	see curve	2,750 rpm	162 W	68 dB(A)	220-240 V	View
LWDA-250 (10")S-MWN-04	1,900 m³/h	see curve	2,750 rpm	162 W	60 dB(A)	220-240 V	View
LWA-250(10")U(S)M-03	2,100 m³/h	215 Pa	2,800 rpm	250 W	—	110-120 V	View
LWDA-250(10")S-MWN-06	2,100 m³/h	215 Pa	2,800 rpm	100 W	65 dB(A)	220 V	View
LWFA-E-250-01	2,500 m³/h	380 Pa	—	—	70 dB(A)	—	View
LWFA4E250-138NS-02	2,575 m³/h	401.7 Pa	1,330 rpm	900 W	72 dB(A)	220 V	View