ImpellerØ197 mm7.8 in
Max airflow1,197 m³/h705 CFM
Max static pressure525 Pa2.11 in. wg
Voltage310 V
Speed750 rpm
Input power85 W

LWFD3G197-072DZ-01 DC Dual Inlet Forward Centrifugal Blower Ø197 mm

Ø197 mm | DC | Max airflow 1,197 m³/h | Max static pressure 525 Pa

SKU: LWFD3G197-072DZ-01 Categories: Centrifugal Fans, Dual Inlet Forward Curved Blowers, Impeller Ø180–355 mm

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Samples in 1–3 days
Production 15–30 days
18-month warranty
CE · ETL · RoHS

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T/T 30 / 70 · FOB / CIF / DDP
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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.

LWFD3G197-072DZ-01 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWFD3G197-072DZ-01 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

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

LWFD3G197-072DZ-01 is a LONGWELL DC Dual Inlet Forward Centrifugal Blower from the Dual Inlet Forward Curved Blowers range, impeller Ø197 mm, rated 310 V DC, maximum airflow 1,197 m³/h, maximum static pressure 525 Pa, input power 85 W. The low-voltage brushless DC motor suits battery-powered equipment and electronics cooling with speed control on demand.

Technical data

Model	LWFD3G197-072DZ-01
Series	LWFD3G197
Motor type	DC
Rated voltage	310 V
Current	0.27 A
Input power	85 W
Speed	750 rpm
Max. airflow	1,197 m³/h
Max. static pressure	525 Pa
Ambient temperature	-30 ~ 60 °C
Impeller diameter	Ø197 mm
Rotor diameter	72
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 LWFD3G197: 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.