ImpellerØ146 mm5.7 in
Max airflow1,133 m³/h667 CFM
Max static pressure545.9 Pa2.19 in. wg
Voltage310 V
Speed1,650 rpm
Input power180 W
Noise67 dB(A)

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

Ø146 mm | DC | Max airflow 1,133 m³/h | Max static pressure 545.9 Pa | 67 dB(A)

SKU: LWFD3G146-092DZ-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.

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

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

LWFD3G146-092DZ-01 Wiring diagram — **Wiring diagram**Lead colours and terminal assignment; TK = motor thermal contact.

Downloads for LWFD3G146-092DZ-01

PDFDrawing · 439 KB PDFDatasheet · 439 KB

Need a non-standard size or another format? Ask an engineer or search the download center.

LWFD3G146-092DZ-01 is a LONGWELL DC Dual Inlet Forward Centrifugal Blower from the Dual Inlet Forward Curved Blowers range, impeller Ø146 mm, rated 310 V DC, maximum airflow 1,133 m³/h, maximum static pressure 545.9 Pa, noise 67 dB(A), input power 180 W. The low-voltage brushless DC motor suits battery-powered equipment and electronics cooling with speed control on demand.

Technical data

Model	LWFD3G146-092DZ-01
Series	LWFD3G146
Motor type	DC
Rated voltage	310 V
Current	0.58 A
Input power	180 W
Speed	1,650 rpm
Max. airflow	1,133 m³/h
Max. static pressure	545.9 Pa
Noise	67 dB(A)
Ambient temperature	-30 ~ 60 °C
Storage temperature	-25 ~ 70℃
Humidity	0 ~ 85 % RH
Altitude	< 1000m
Impeller diameter	Ø146 mm
Rotor diameter	92
Impeller material	Galvanised sheet steel( Impeller )
Protection class	IP44
Insulation class	B
Bearing	Maintenance-free ball bearings
Duty	S1
Balance grade	G6.3
Vibration standard	JB/T8689
Service life	25,000Hours(L10), At 40 °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 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
LWFD3G146-092DZ-01 this model	1,133 m³/h	545.9 Pa	1,650 rpm	180 W	67 dB(A)	310 V
LWFD3G146-092DH-01	1,081.5 m³/h	345.05 Pa	1,350 rpm	100 W	65 dB(A)	48 V	View
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-03	1,236 m³/h	525.3 Pa	1,600 rpm	185 W	70 dB(A)	310 V	View