ImpellerØ146 mm5.7 in
Max airflow1,081.5 m³/h637 CFM
Max static pressure345.05 Pa1.39 in. wg
Voltage48 V
Speed1,350 rpm
Input power100 W
Noise65 dB(A)

LWFD3G146-092DH-01 DC Dual Inlet Forward Centrifugal Blower Ø146 mm

Ø146 mm | DC | Max airflow 1,081.5 m³/h | Max static pressure 345.05 Pa | 65 dB(A)

SKU: LWFD3G146-092DH-01 Categories: Centrifugal Fans, Dual Inlet Forward Curved Blowers, Impeller Ø120–146 mm

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18-month warranty
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Required airflow Required static pressure

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.

LWFD3G146-092DH-01 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWFD3G146-092DH-01 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

Downloads for LWFD3G146-092DH-01

DOCXDatasheet · 564 KB PDFDatasheet · 1.5 MB

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LWFD3G146-092DH-01 is a LONGWELL DC Dual Inlet Forward Centrifugal Blower from the Dual Inlet Forward Curved Blowers range, impeller Ø146 mm, rated 48 V DC, maximum airflow 1,081.5 m³/h, maximum static pressure 345.05 Pa, noise 65 dB(A), input power 100 W. The low-voltage brushless DC motor suits battery-powered equipment and electronics cooling with speed control on demand.

Technical data

Model	LWFD3G146-092DH-01
Series	LWFD3G146
Motor type	DC
Rated voltage	48 V
Current	2.1 A
Input power	100 W
Speed	1,350 rpm
Max. airflow	1,081.5 m³/h
Max. static pressure	345.05 Pa
Noise	65 dB(A)
Ambient temperature	-30 ~ 60 °C
Impeller diameter	Ø146 mm
Rotor diameter	92
Impeller material	Galvanised sheet steel Mode of operation: S1 Type of protection: IP 54 Insulation class: F
Insulation class	F
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 LWFD3G146: 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 (Ø146 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
LWFD3G146-092DH-01 this model	1,081.5 m³/h	345.05 Pa	1,350 rpm	100 W	65 dB(A)	48 V
LWFD3G146-092DM-01	1,081.5 m³/h	345.05 Pa	1,350 rpm	100 W	65 dB(A)	24 V	View
LWFD3G146-092DZ-02	1,133 m³/h	520.15 Pa	1,650 rpm	180 W	67 dB(A)	310 V	View
LWFD3G146-092DZ-01	1,133 m³/h	545.9 Pa	1,650 rpm	180 W	67 dB(A)	310 V	View
LWFD3G146-092DZ-03	1,236 m³/h	525.3 Pa	1,600 rpm	185 W	70 dB(A)	310 V	View