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.
- ImpellerØ220 mm8.7 in
- Max airflow937.3 m³/h552 CFM
- Max static pressure721 Pa2.89 in. wg
- Voltage230 V
- Speed2,470 rpm
- Input power86 W
- Noise68 dB(A)
LWBE3G220-072NS-07 EC Backward Curved Centrifugal Fan Ø220 mm
Ø220 mm | EC | Max airflow 937.3 m³/h | Max static pressure 721 Pa | 68 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.
Need a non-standard size or another format? Ask an engineer or search the download center.
LWBE3G220-072NS-07 is a LONGWELL EC Backward Curved Centrifugal Fan from the Backward Curved Centrifugal Fans range, impeller Ø220 mm, rated 230 V EC, maximum airflow 937.3 m³/h, maximum static pressure 721 Pa, noise 68 dB(A), input power 86 W. The EC motor integrates the drive electronics: stepless speed control by 0–10 V or PWM signal, speed feedback and high efficiency at part load.
Technical data
| Model | LWBE3G220-072NS-07 |
|---|---|
| Series | LWBE3G220 |
| Motor type | EC |
| Phase | 1-phase |
| Rated voltage | 230 V |
| Frequency | 50 Hz |
| Current | 0.71 A |
| Input power | 86 W |
| Speed | 2,470 rpm |
| Max. airflow | 937.3 m³/h |
| Max. airflow (CFM) | 551 CFM |
| Max. static pressure | 721 Pa |
| Noise | 68 dB(A) |
| Ambient temperature | -25 ~ 60 °C |
| Storage temperature | -40 ~ 80℃ |
| Humidity | 5 ~ 90 % RH |
| Altitude | < 1000m |
| Impeller diameter | Ø220 mm |
| Rotor diameter | 72 |
| Impeller material | PA6+GF30% ( Impeller ) |
| Protection class | IP55 |
| Insulation class | B |
| Bearing | Maintenance-free deep groove ball bearings |
| Duty | S1 |
| Balance grade | G6.3 |
| Vibration standard | JB/T 8689 |
| Service life | 40,000Hours(L10), At 40 °Croom, humidity 15%~65%RH |
| Rotation | Clockwise,seen on rotor |
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 LWBE3G220: 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 (Ø220 mm · EC)
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 | |
|---|---|---|---|---|---|---|---|
| LWBE3G220-072NS-07 this model | 937.3 m³/h | 721 Pa | 2,470 rpm | 86 W | 68 dB(A) | 230 V | |
| LWBE3G220-072PS-10 | 886 m³/h | 433 Pa | 2,600 rpm | 75 W | 71 dB(A) | 230 V | View |
| LWBE3G220-072NS-11 | 886 m³/h | 433 Pa | 2,600 rpm | 75 W | 71 dB(A) | 230 V | View |
| LWFE3G220-072PS-01 | 937.3 m³/h | 721 Pa | 2,470 rpm | 86 W | 68 dB(A) | 230 V | View |
| LWBE3G220-072NU-13 | 937.3 m³/h | 721 Pa | 2,470 rpm | 86 W | 68 dB(A) | 115 V | View |
| LWBE3G220-092PS-11 | 989 m³/h | 711 Pa | 3,310 rpm | 145 W | 75 dB(A) | 230 V | View |
| LWBE3G220-092NS-10 | 989 m³/h | 711 Pa | 3,310 rpm | 145 W | 75 dB(A) | 230 V | View |
| LWFE3G220-072PS-02 | 1,019.7 m³/h | 597.4 Pa | 2,800 rpm | 115 W | 69 dB(A) | 230 V | View |
| LWBE3G220-072NU-14 | 1,019.7 m³/h | 597.4 Pa | 2,800 rpm | 115 W | 69 dB(A) | 115 V | View |
| LWBE3G220-072NS-09 | 1,019.7 m³/h | 597.4 Pa | 2,800 rpm | 115 W | 69 dB(A) | 230 V | View |
| LWFE3G220-072PS-03 | 1,184.5 m³/h | 978.5 Pa | 3,250 rpm | 168 W | 70 dB(A) | 230 V | View |
| LWBE3G220-072NU-12 | 1,184.5 m³/h | 978.5 Pa | 3,250 rpm | 168 W | 70 dB(A) | 115 V | View |
| LWBE3G220-072NS-08 | 1,184.5 m³/h | 978.5 Pa | 3,250 rpm | 168 W | 70 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 LWBE3G220 seriesSame impeller, different speed grade or wiring
LWBE3G220-072NS-09Ø220 mm · 1,019.7 m³/h · 597.4 Pa · ECsame series
LWBE3G220-072NS-08Ø220 mm · 1,184.5 m³/h · 978.5 Pa · ECsame series
LWBE3G220-072NU-12Ø220 mm · 1,184.5 m³/h · 978.5 Pa · ECsame series
LWBE3G220-072NU-13Ø220 mm · 937.3 m³/h · 721 Pa · ECsame series
LWBE3G220-072NU-14Ø220 mm · 1,019.7 m³/h · 597.4 Pa · ECsame series
LWBE3G220-072NS-11Ø220 mm · 886 m³/h · 433 Pa · ECsame seriesAdjacent sizesOne size up when airflow is short, one size down when it is too much
LWFA6D225-138NT-03Ø225 mm · 1,339 m³/h · 236.9 Pa · ACadjacent size
LWBA2E225-092NS-10Ø225 mm · 1,257 m³/h · 695 Pa · ACadjacent size
LWBA2D225-092NT-11Ø225 mm · 1,133 m³/h · 546 Pa · ACadjacent size
LWBA2D225-092NT-12Ø225 mm · 1,257 m³/h · 695 Pa · ACadjacent size
LWBA2E225-092NS-09Ø225 mm · 1,133 m³/h · 546 Pa · ACadjacent size
LWFA4E225-138NS-02Ø225 mm · 1,761 m³/h · 288.4 Pa · ACadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWFE3G220-072PS-01Ø220 mm · 937.3 m³/h · 721 Pa · ECsimilar duty
LWBA2E220-092NS-04Ø220 mm · 937 m³/h · 484 Pa · ACsimilar duty
LWBA2D220-092NT-06Ø220 mm · 937 m³/h · 484 Pa · ACsimilar duty
LWCD-65820MN-07Ø65 mm · 933 m³/h · 56 Pa · DCsimilar duty
LWCD-65820LN-06Ø65 mm · 933 m³/h · 56 Pa · DCsimilar dutySee all Backward Curved Centrifugal Fans · select by duty point