Dimensional drawingDimensions in mm. Confirm against the final approval drawing before machining cut-outs.Performance curve (P-Q)Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.
LWFA-E-300-01 is a LONGWELL LWFA Series Direct Drive Centrifugal Blower from the Impeller Ø280–500 mm range, impeller Ø300 mm, maximum airflow 4,300 m³/h, maximum static pressure 720 Pa, noise 72 dB(A). The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
Model
LWFA-E-300-01
Motor type
AC
Max. airflow
4,300 m³/h
Max. static pressure
720 Pa
Noise
72 dB(A)
Impeller diameter
Ø300 mm
Blade diameter
300mm
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 (Ø300 mm · AC)
Same impeller, different speed grade, power or wiring. Step up for more airflow, step down for lower noise.
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