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.
- ImpellerØ225 mm
- Max airflow1,442 m³/h
- Max static pressure288.4 Pa
- Voltage230 V
- Speed1,320 rpm
- Input power400 W
- Noise73 dB(A)
LWFA4E225-138SS-01 AC Single Inlet Forward Centrifugal Blower Ø225 mm
Ø225 mm | AC | Max airflow 1,442 m³/h | Max static pressure 288.4 Pa | 73 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · ETL · RoHS
Engineering files (on request)
CAD files exist for this model and can be released for assembly checks in SolidWorks / CATIA / Creo / Inventor.
CAD models contain the blade geometry and are not downloadable. Tell us the project; an engineer sends the file after a short check, normally within 1 business day.
Downloads for LWFA4E225-138SS-01
PDFDatasheetNeed a non-standard size or another format? Ask an engineer or search the download center.
LWFA4E225-138SS-01 is a LONGWELL AC Single Inlet Forward Centrifugal Blower from the Single Inlet Forward Curved Blowers range, impeller Ø225 mm, rated 230 V AC, maximum airflow 1,442 m³/h, maximum static pressure 288.4 Pa, noise 73 dB(A), input power 400 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWFA4E225-138SS-01 |
|---|---|
| Series | LWFA4E225 |
| Motor type | AC |
| Phase | 1-phase |
| Rated voltage | 230 V |
| Frequency | 50 Hz |
| Current | 1.8 A |
| Input power | 400 W |
| Speed | 1,320 rpm |
| Max. airflow | 1,442 m³/h |
| Max. static pressure | 288.4 Pa |
| Noise | 73 dB(A) |
| Ambient temperature | -30 ~ 60 °C |
| Storage temperature | -25 ~ 70℃ |
| Humidity | 0 ~ 85 % RH |
| Altitude | < 1000m |
| Impeller diameter | Ø225 mm |
| Rotor diameter | 138 |
| Impeller material | Galvanised sheet steel ( Impeller ) |
| Insulation class | F |
| Bearing | Maintenance-free ball bearings |
| Duty | S1 |
| Balance grade | G6.3 |
| Vibration standard | JB/T 8689 |
| Service life | 30,000Hours(L10), At 20 °Croom, humidity 15%~65%RH |
Typical applications
- Air handling units (AHU) and rooftop units (RTU)
- Data-center CRAH / CRAC units and fan walls
- Dust extraction and process ventilation
- Fan filter units and air purifiers
Series LWFA4E225: models in the same series share the impeller and motor platform and differ in speed grade, voltage or lead-out / terminal-box configuration — compare them in the table below or ask for the best fit at your duty point.
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 (Ø225 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 | |
|---|---|---|---|---|---|---|---|
| LWFA4E225-138SS-01 this model | 1,442 m³/h | 288.4 Pa | 1,320 rpm | 400 W | 73 dB(A) | 230 V | |
| LWBA4D225-092NT-04 | 690 m³/h | 216 Pa | 1,650 rpm | 47 W | 60 dB(A) | 380 V | View |
| LWBA2E225-092NS-13 | 1,133 m³/h | 546 Pa | 2,630 rpm | 125 W | 74 dB(A) | 230 V | View |
| LWBA2D225-092NT-11 | 1,133 m³/h | 546 Pa | 2,600 rpm | 135 W | 74 dB(A) | 380 V | View |
| LWBA2E225-092NS-09 | 1,133 m³/h | 546 Pa | 2,600 rpm | 135 W | 74 dB(A) | 230 V | View |
| LWBA2D225-092NT-08 | 1,139 m³/h | 588 Pa | 2,645 rpm | 119 W | 68.6 dB(A) | 380 V | View |
| LWBA2E225-092NS-06 | 1,166 m³/h | 578 Pa | 2,655 rpm | 129 W | 68.6 dB(A) | 230 V | View |
| LWBA2D225-092NT-12 | 1,257 m³/h | 695 Pa | 2,900 rpm | 180 W | 76 dB(A) | 380 V | View |
| LWBA2E225-092NS-10 | 1,257 m³/h | 695 Pa | 2,900 rpm | 180 W | 76 dB(A) | 230 V | View |
| LWBA2E225-092NU-05 | 1,276 m³/h | 756 Pa | 2,905 rpm | 178 W | 71.3 dB(A) | 115 V | View |
| LWBA2D225-092NT-07 | 1,318 m³/h | 788 Pa | 3,095 rpm | 190 W | 71.8 dB(A) | 380 V | View |
| LWFA6D225-138NT-03 | 1,339 m³/h | 236.9 Pa | 930 rpm | 300 W | 59 dB(A) | 380 V | View |
| LWFA4D225-138NT-01 | 1,648 m³/h | 288.4 Pa | 1,300 rpm | 490 W | 65 dB(A) | 380 V | View |
| LWFA4E225-138NS-02 | 1,761 m³/h | 288.4 Pa | 1,320 rpm | 510 W | 65 dB(A) | 230 V | View |
| LWFA-E-225-01 | 2,300 m³/h | 325 Pa | — | — | 65 dB(A) | 220 V | View |
Not sure which one? Send us the duty point (airflow / static pressure / noise limit) — use the selector or ask an engineer.
Related products
Other models in the LWFA4E225 seriesSame impeller, different speed grade or wiring
Adjacent sizesOne size up when airflow is short, one size down when it is too much
LWBA2E220-092NS-02Ø220 mm · 945 m³/h · 515 Pa · ACadjacent size
LWBA2E220-092NS-05Ø220 mm · 999 m³/h · 515 Pa · ACadjacent size
LWBA2E220-092NS-04Ø220 mm · 937 m³/h · 484 Pa · ACadjacent size
LWBA4E220-092NS-03Ø220 mm · 767 m³/h · 399 Pa · ACadjacent size
LWFE3G220-072PS-01Ø220 mm · 937.3 m³/h · 721 Pa · ECadjacent size
LWFE3G220-072PS-02Ø220 mm · 1,019.7 m³/h · 597.4 Pa · ECadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWFA4D225-138ST-02Ø225 mm · 1,442 m³/h · 288.4 Pa · ACsimilar duty
LWBA4E280-092NS-04Ø280 mm · 1,442 m³/h · 288 Pa · ACsimilar duty
LWBA6E355-102NS-04Ø355 mm · 1,442 m³/h · 206 Pa · ACsimilar duty
LWBD3G250-092NH-06Ø250 mm · 1,442 m³/h · 690 Pa · DCsimilar duty
LWCD-110620MN-06Ø110 mm · 1,437 m³/h · 244 Pa · DCsimilar duty
LWDE3G200-IS-01Ø198 mm · 1,453 m³/h · ECsimilar dutySee all Centrifugal Fans · select by duty point