Digitised from the catalogue curve at standard air (20 °C, 101.3 kPa, 1.2 kg/m³); one curve per voltage / speed grade (1 here, rated 48 V). Data version: catalogue 2026-08. 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.
Representative image of the series — dimensions and configuration of this model are given in the drawing and data table below.
- ImpellerØ140 mm5.5 in
- Max airflow464 m³/h273 CFM
- Max static pressure453 Pa1.82 in. wg
- Voltage48 V
- Speed1,800 rpm
- Input power80 W
- Noise65 dB(A)
LWFD3G140-072SH-01 DC Single Inlet Forward Centrifugal Blower Ø140 mm
Ø140 mm | DC | Max airflow 464 m³/h | Max static pressure 453 Pa | 65 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 12-month warranty
- CE · ETL · RoHS
PDFDatasheet (PDF)electrical & performance dataPDFFull product catalogueDC DC Single Inlet Forward Centrifugal Blower · SKU on PDF p. 8
All files for LWFD3G140-072SH-014 files · direct download
CAD models (STEP / DWG) are released on request — see “Engineering files” below. Another format or a non-standard variant? Ask an engineer · download center
Proven in: AHU & ventilation unit fans · CRAH FanGrid retrofit · Heat pump fan programme — all case studies on longwellfans.com
Typical applications: Solid-fuel heating · Commercial dishwashers · Commercial dryers · Fan burners — all industries
Downloads for LWFD3G140-072SH-01
PDFDatasheetPDFFull product catalogue · DC DC Single Inlet Forward Centrifugal Blower · model on PDF p. 8 · 9.8 MBNeed a non-standard size or another format? Ask an engineer or search the download center.
LWFD3G140-072SH-01 is a LONGWELL DC Single Inlet Forward Centrifugal Blower from the Single Inlet Forward Curved Blowers range, impeller Ø140 mm, rated 48 V DC, maximum airflow 464 m³/h, maximum static pressure 453 Pa, noise 65 dB(A), input power 80 W. The low-voltage brushless DC motor suits battery-powered equipment and electronics cooling with speed control on demand.
Technical data
| Model | LWFD3G140-072SH-01 |
|---|---|
| Series | LWFD3G140 |
| Motor type | DC |
| Rated voltage | 48 V |
| Current | 1.67 A |
| Input power | 80 W |
| Speed | 1,800 rpm |
| Max. airflow | 464 m³/h |
| Max. static pressure | 453 Pa |
| Noise | 65 dB(A) |
| Ambient temperature | -30 ~ 60 °C |
| Impeller diameter | Ø140 mm |
| Rotor diameter | 72 mm |
| Impeller material | Plastic PA66 |
| Insulation class | B |
| Bearing | Maintenance-free ball bearings |
| Duty | S1 |
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 LWFD3G140: 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 (Ø140 mm · DC)
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 | |
|---|---|---|---|---|---|---|---|
| LWFD3G140-072SH-01 this model | 464 m³/h | 453 Pa | 1,800 rpm | 80 W | 65 dB(A) | 48 V | |
| LWFD3G140-072SZ-01 | 464 m³/h | 453 Pa | 1,800 rpm | 80 W | 71 dB(A) | 310 V | View |
| LWFD3G140-072SZ-02 | 464 m³/h | 453 Pa | 1,800 rpm | 80 W | 71 dB(A) | 310 V | View |
| LWFD3G140-072SH-02 | 464 m³/h | 453 Pa | 1,800 rpm | 80 W | 65 dB(A) | 48 V | View |
| LWFD3G140-072SM-02 | 464 m³/h | 453 Pa | 1,800 rpm | 80 W | 65 dB(A) | 24 V | View |
| LWFD3G140-072SM-01 | 464 m³/h | 453 Pa | 1,800 rpm | 80 W | 65 dB(A) | 24 V | View |
Not sure which one? Send us the duty point (airflow / static pressure / noise limit) — use the selector or ask an engineer.
Other models in the LWFD3G140 seriesSame impeller, different speed grade or wiring
LWFD3G140-072SM-01Ø140 mm · 464 m³/h · 453 Pa · DCsame series
LWFD3G140-072SM-02Ø140 mm · 464 m³/h · 453 Pa · DCsame series
LWFD3G140-072SH-02Ø140 mm · 464 m³/h · 453 Pa · DCsame series
LWFD3G140-072SZ-01Ø140 mm · 464 m³/h · 453 Pa · DCsame series
LWFD3G140-072SZ-02Ø140 mm · 464 m³/h · 453 Pa · DCsame seriesAdjacent sizesOne size up when airflow is short, one size down when it is too much
LWFA2E146-092DS-05Ø146 mm · 927 m³/h · 515 Pa · ACadjacent size
LWFD3G146-092DZ-03Ø146 mm · 1,236 m³/h · 525.3 Pa · DCadjacent size
LWFA2E146-092DS-09Ø146 mm · 762 m³/h · 541 Pa · ACadjacent size
LWFA2E146-092DS-08Ø146 mm · 639 m³/h · 536 Pa · ACadjacent size
LWFA2E146-092DS-07Ø146 mm · 479 m³/h · 391 Pa · ACadjacent size
LWFA2E146-092DS-03Ø146 mm · 1,009 m³/h · 494 Pa · ACadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
See all Centrifugal Fans · select by duty point