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.
- ImpellerØ133 mm
- Max airflow567 m³/h
- Max static pressure433 Pa
- Voltage230 V
- Speed1,250 rpm
- Input power190 W
- Noise69 dB(A)
LWFA4E133-092DS-04 AC Dual Inlet Forward Centrifugal Blower Ø133 mm
Ø133 mm | AC | Max airflow 567 m³/h | Max static pressure 433 Pa | 69 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · ETL · RoHS
Need a non-standard size or another format? Ask an engineer or search the download center.
LWFA4E133-092DS-04 is a LONGWELL AC Dual Inlet Forward Centrifugal Blower from the Dual Inlet Forward Curved Blowers range, impeller Ø133 mm, rated 230 V AC, maximum airflow 567 m³/h, maximum static pressure 433 Pa, noise 69 dB(A), input power 190 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.
Technical data
| Model | LWFA4E133-092DS-04 |
|---|---|
| Series | LWFA4E133 |
| Motor type | AC |
| Phase | 1-phase |
| Rated voltage | 230 V |
| Frequency | 60 Hz |
| Current | 0.86 A |
| Input power | 190 W |
| Speed | 1,250 rpm |
| Max. airflow | 567 m³/h |
| Max. static pressure | 433 Pa |
| Noise | 69 dB(A) |
| Ambient temperature | -30 ~ 60 °C |
| Storage temperature | -30 ~ 70℃ |
| Humidity | 0 ~ 85 % RH |
| Altitude | < 1000m |
| Impeller diameter | Ø133 mm |
| Rotor diameter | 92 |
| Impeller material | Galvanised sheet steel ( Impeller ) |
| Protection class | IP44 |
| 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 LWFA4E133: 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 (Ø133 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 | |
|---|---|---|---|---|---|---|---|
| LWFA4E133-092DS-04 this model | 567 m³/h | 433 Pa | 1,250 rpm | 190 W | 69 dB(A) | 230 V | |
| LWBA2E133-072NS-02 | 225 m³/h | 184 Pa | 2,720 rpm | 27.8 W | 57.9 dB(A) | 230 V | View |
| LWBA2E133-072NS-01 | 245 m³/h | 242 Pa | 3,070 rpm | 32.2 W | 58.7 dB(A) | 230 V | View |
| LWFA2E133-092NS-02 | 278 m³/h | 464 Pa | 2,350 rpm | 95 W | 63 dB(A) | 230 V | View |
| LWFA2E133-092SS-02 | 278 m³/h | 464 Pa | 1,750 rpm | 95 W | 63 dB(A) | 230 V | View |
| LWFA2E133-092NS-01 | 299 m³/h | 361 Pa | 2,300 rpm | 83 W | 61 dB(A) | 230 V | View |
| LWFA2E133-092SS-01 | 299 m³/h | 361 Pa | 1,850 rpm | 83 W | 61 dB(A) | 230 V | View |
| LWFA2E133-092SS-03 | 319 m³/h | 433 Pa | 1,600 rpm | 85 W | 56 dB(A) | 230 V | View |
| LWFA2E133-092DS-07 | 330 m³/h | 309 Pa | 1,450 rpm | 70 W | 40 dB(A) | 230 V | View |
| LWFA4E133-092DS-09 | 556.2 m³/h | 144.2 Pa | 1,150 rpm | 75 W | 51 dB(A) | 230 V | View |
| LWFA4E133-092DS-03 | 649 m³/h | 371 Pa | 1,400 rpm | 180 W | 69 dB(A) | 230 V | View |
| LWFA2E133-092DS-08 | 726.15 m³/h | 381.1 Pa | 1,500 rpm | 190 W | 60 dB(A) | 230 V | View |
| LWFA2E133-092DS-10 | 773 m³/h | 433 Pa | 1,200 rpm | 250 W | 58 dB(A) | 230 V | View |
| LWFA2E133-092DS-06 | 886 m³/h | 639 Pa | 1,300 rpm | 265 W | 69 dB(A) | 230 V | View |
| LWFA2E133-092DS-05 | 927 m³/h | 494 Pa | 1,350 rpm | 250 W | 69 dB(A) | 230 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 LWFA4E133 seriesSame impeller, different speed grade or wiring
Adjacent sizesOne size up when airflow is short, one size down when it is too much
LWBE3G450-188NT-14Ø138 mm · 8,985 m³/h · 840 Pa · ECadjacent size
LWFD3G140-072SH-01Ø140 mm · 464 m³/h · 453 Pa · DCadjacent size
LWFE3G140-072SS-03Ø140 mm · 597 m³/h · 979 Pa · ECadjacent size
LWFD3G140-072SM-01Ø140 mm · 464 m³/h · 453 Pa · DCadjacent size
LWFE3G140-072SS-01Ø140 mm · 453 m³/h · 783 Pa · ECadjacent size
LWFE3G140-072SS-02Ø140 mm · 505 m³/h · 881 Pa · ECadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWBA2E175-072NU-01Ø175 mm · 567 m³/h · 368 Pa · ACsimilar duty
LWBA4E220-092NS-09Ø220 mm · 567 m³/h · 155 Pa · ACsimilar duty
LWBA4D220-092NT-11Ø220 mm · 567 m³/h · 155 Pa · ACsimilar duty
LWFD3G160-092SH-01Ø160 mm · 570 m³/h · 609 Pa · DCsimilar duty
LWCA-501055SN-06Ø50 mm · 564 m³/h · 42 Pa · ACsimilar duty
LWAD17251LX-01172 mm · 560.4 m³/h · 340 Pa · DCsimilar dutySee all Centrifugal Fans · select by duty point