Representative image of the series — dimensions and configuration of this model are given in the drawing and data table below.
- ImpellerØ190 mm7.5 in
- Max airflow638.6 m³/h376 CFM
- Max static pressure453.2 Pa1.82 in. wg
- Voltage230 V
- Speed2,940 rpm
- Input power64 W
- Noise65 dB(A)
LWBE3G190-072NS-14 EC Backward Curved Centrifugal Fan Ø190 mm
Ø190 mm | EC | Max airflow 638.6 m³/h | Max static pressure 453.2 Pa | 65 dB(A)
- Direct from LONGWELL
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 12-month warranty
- CE · ETL · RoHS
CAD models (STEP / DWG) are released on request — see “Engineering files” below. Another format or a non-standard variant? Ask an engineer · download center
Cross-reference: same impeller size class as ebm-papst K3G190, ebm-papst R3G190 — side-by-side comparison on longwellfans.com. Mounting is confirmed against the LONGWELL drawing before ordering.
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 publicly downloadable. Tell us the project; an engineer sends the file after a short check, normally within 1 business day.
Performance curve (P-Q) LWBE3G190-072NS-14
Digitised from the catalogue curve at standard air (20 °C, 101.3 kPa, 1.2 kg/m³); one curve per voltage / speed grade (10 here, rated 230 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.
Video LWBE3G190-072NS-14
LWBE3G190-072NS-14 — construction, airflow path and running condition.
LONGWELL 190mm EC Backward Curved Centrifugal Fan | LWBE3G190 · open in video library
Longwell EC Backward Curved Centrifugal Fans – Delivered Globally with Efficiency | LWBE3G190-072PS-03 · open in video library
Drawing, Curve & Wiring LWBE3G190-072NS-14
Files for LWBE3G190-072NS-14: datasheet, catalogue and drawing PDFs are listed above ↑ · CAD (STEP / DWG) on request — ask an engineer.
Technical description LWBE3G190-072NS-14
LWBE3G190-072NS-14 is a LONGWELL EC Backward Curved Centrifugal Fan from the Backward Curved Centrifugal Fans range, impeller Ø190 mm, rated 230 V EC, maximum airflow 638.6 m³/h, maximum static pressure 453.2 Pa, noise 65 dB(A), input power 64 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 | LWBE3G190-072NS-14 |
|---|---|
| Series | LWBE3G190 |
| Motor type | EC |
| Phase | 1-phase |
| Rated voltage | 230 V |
| Frequency | 50 Hz |
| Current | 0.53 A |
| Input power | 64 W |
| Speed | 2,940 rpm |
| Max. airflow | 638.6 m³/h |
| Max. airflow (CFM) | 376 CFM |
| Max. static pressure | 453.2 Pa |
| Noise | 65 dB(A) |
| Ambient temperature | -25 ~ 60 °C |
| Storage temperature | -40 ~ 80℃ |
| Humidity | 5 ~ 90 % RH |
| Altitude | < 1000m |
| Impeller diameter | Ø190 mm |
| Rotor diameter | 72 mm |
| 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 LWBE3G190: 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.
Product-line certificates
Scans of original documents held by Ningbo Longwell Electric Technology Co., Ltd.: the company ISO management-system certificate and the certificates whose model list covers this model. Click a scan to open the original.
ISO 9001 / 14001 / 45001Management systems of Ningbo Longwell Electric Technology Co., Ltd. (company certificate).
PDFISO 9001 / 14001 / 45001 management system certificateCE-LVDVoluntary certificates of conformity issued by KTS; the covered models are listed on each certificate.
PDFCE-LVD certificate of conformity KB2206066L01 · LWBE3GETLIntertek Authorization to Mark, control no. 5022563; the covered model ranges are stated on the document.
PDFETL Authorization to Mark · report 220400508HAN-001 · LWBE3G / LWDE3G / LWFE3GRoHSVoluntary certificate of conformity issued by KTS; the covered models are listed on the certificate.
PDFRoHS certificate of conformity KB2206068R01 · LWBE3GNeed a Declaration of Conformity for this model and your destination market? Ask us — we arrange additional certification on request.
How to order LWBE3G190-072NS-14
Most first orders follow the same eight steps. Quantities, terms and lead times are confirmed in your quotation.
- 1SelectFind models by duty point in the selector or by model number, compare on the curve and add them to your RFQ list.
- 2Engineering checkWithin 1 business day you receive the duty-point check on the curve, price and lead time.
- 3SamplesStock models ship in 1–3 days.
- 4Validation supportDatasheets, drawings, wiring diagrams and DoC per model; test reports, CAD and register maps after a short project check or NDA.
- 5Order & paymentProforma invoice; first orders on T/T 30 / 70.
- 6Production & release15–30 days at the partner factory that builds your model, then inspected and released to LONGWELL standards with outgoing sampling to AQL 2.5.
- 7ShippingFOB / CIF / DDP by sea from Ningbo or Shanghai; express and air on EXW / FCA / DAP.
- 8After-sales12 months standard, extendable to 18–24 months by project agreement; test records retained for 5 years; 8D closed-loop for any issue; annual technical review for framework customers.
Test & release at LONGWELL
Specified and drawn by LONGWELL; built to LONGWELL drawings by qualified partner factories; inspected and released to LONGWELL standards before shipment.
See test and release photos (8)
Alternatives with the same impeller (Ø190 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 | |
|---|---|---|---|---|---|---|---|
| LWBE3G190-072NS-14 this model | 638.6 m³/h | 453.2 Pa | 2,940 rpm | 64 W | 65 dB(A) | 230 V | |
| LWBE3G190-072NU-18 | 638.6 m³/h | 453.2 Pa | 2,940 rpm | 64 W | 65 dB(A) | 115 V | View |
| LWBE3G190-072NS-13 | 813.7 m³/h | 587.1 Pa | 3,300 rpm | 87 W | 70 dB(A) | 230 V | View |
| LWBE3G190-072PS-12 | 851 m³/h | 798 Pa | 4,230 rpm | 104 W | 70 dB(A) | 230 V | View |
| LWBE3G190-072NS-16 | 851 m³/h | 798 Pa | 4,230 rpm | 104 W | 70 dB(A) | 230 V | View |
| LWBE3G190-072NU-19 | 854.9 m³/h | 875.5 Pa | 3,800 rpm | 115 W | 71 dB(A) | 115 V | View |
| LWBE3G190-072NS-15 | 854.9 m³/h | 803.4 Pa | 3,700 rpm | 135 W | 70 dB(A) | 230 V | View |
| LWBE3G190-072NS-12 | 854.9 m³/h | 875.5 Pa | 3,800 rpm | 115 W | 71 dB(A) | 230 V | View |
| LWBE3G190-072NS-06 | 973.35 m³/h | 1,009.4 Pa | 4,100 rpm | 170 W | 72 dB(A) | 230 V | View |
| LWBE3G190-072NU-20 | 973.35 m³/h | 1,009.4 Pa | 4,100 rpm | 170 W | 72 dB(A) | 115 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 LWBE3G190 seriesSame impeller, different speed grade or wiring
LWBE3G190-072NS-13Ø190 mm · 813.7 m³/h · 587.1 Pa · ECsame series
LWBE3G190-072NS-12Ø190 mm · 854.9 m³/h · 875.5 Pa · ECsame series
LWBE3G190-072NS-06Ø190 mm · 973.35 m³/h · 1,009.4 Pa · ECsame series
LWBE3G190-072NU-20Ø190 mm · 973.35 m³/h · 1,009.4 Pa · ECsame series
LWBE3G190-072NS-15Ø190 mm · 854.9 m³/h · 803.4 Pa · ECsame series
LWBE3G190-072NU-18Ø190 mm · 638.6 m³/h · 453.2 Pa · ECsame seriesAdjacent sizesOne size up when airflow is short, one size down when it is too much
LWFD3G197-072DZ-01Ø197 mm · 1,197 m³/h · 525 Pa · DCadjacent size
LWFA4D200-102NT-01Ø200 mm · 1,236 m³/h · 226.6 Pa · ACadjacent size
LWBA2E180-092NS-02Ø180 mm · 494 m³/h · 371 Pa · ACadjacent size
LWFA4E180-092NS-01Ø180 mm · 773 m³/h · 195.7 Pa · ACadjacent size
LWBA2E180-092NS-03Ø180 mm · 443 m³/h · 335 Pa · ACadjacent size
LWFA4E200-102NS-02Ø200 mm · 1,236 m³/h · 226.6 Pa · ACadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWFA2E146-092DS-08Ø146 mm · 639 m³/h · 536 Pa · ACsimilar duty
LWFE3G160-072SS-06Ø160 mm · 639 m³/h · 906 Pa · ECsimilar duty
LWFE3G160-072NS-01Ø160 mm · 639 m³/h · 906 Pa · ECsimilar duty
LWCE-90360SN-06Ø90 mm · 640 m³/h · 74 Pa · ECsimilar duty
LWAD17251MH-08172 mm · 645.6 m³/h · 387 Pa · DCsimilar dutySee all Backward Curved Centrifugal Fans · select by duty point
Go deeper on longwellfans.com
Application guides, project stories and engineering calculators for centrifugal fans — on our main site.
Solutions
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- Data center coolingCRAH, FanGrid, server rooms