ImpellerØ133 mm5.2 in
Max airflow556.2 m³/h327 CFM
Max static pressure144.2 Pa0.58 in. wg
Voltage230 V
Speed1,150 rpm
Input power75 W
Noise51 dB(A)

LWFA4E133-092DS-09 AC Dual Inlet Forward Centrifugal Blower Ø133 mm

Ø133 mm | AC | Max airflow 556.2 m³/h | Max static pressure 144.2 Pa | 51 dB(A)

SKU: LWFA4E133-092DS-09 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.

LWFA4E133-092DS-09 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWFA4E133-092DS-09 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

LWFA4E133-092DS-09 Wiring diagram — **Wiring diagram**Lead colours and terminal assignment; TK = motor thermal contact.

Downloads for LWFA4E133-092DS-09

PDFDatasheet

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LWFA4E133-092DS-09 is a LONGWELL AC Dual Inlet Forward Centrifugal Blower from the Dual Inlet Forward Curved Blowers range, impeller Ø133 mm, rated 230 V AC, maximum airflow 556.2 m³/h, maximum static pressure 144.2 Pa, noise 51 dB(A), input power 75 W. The fixed-speed AC external-rotor motor is simple, robust and cost-effective for constant-duty applications.

Technical data

Model	LWFA4E133-092DS-09
Series	LWFA4E133
Motor type	AC
Phase	1-phase
Rated voltage	230 V
Frequency	50 Hz
Current	0.35 A
Input power	75 W
Speed	1,150 rpm
Max. airflow	556.2 m³/h
Max. static pressure	144.2 Pa
Noise	51 dB(A)
Ambient temperature	-30 ~ 60 °C
Storage temperature	-30 ~ 70℃
Humidity	0 ~ 85 % RH
Altitude	< 1000m
Impeller diameter	Ø133 mm
Rotor diameter	92
Impeller material	Galvanised sheet steel ( Impeller )
Insulation class	F
Bearing	Maintenance-free ball bearings
Duty	S1
Balance grade	G6.3
Vibration standard	JB/T 8689
Service life	30,000Hours(L10), At 20 °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 LWFA4E133: 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 (Ø133 mm · AC)

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
LWFA4E133-092DS-09 this model	556.2 m³/h	144.2 Pa	1,150 rpm	75 W	51 dB(A)	230 V
LWBA2E133-072NS-02	225 m³/h	184 Pa	2,720 rpm	27.8 W	57.9 dB(A)	230 V	View
LWBA2E133-072NS-01	245 m³/h	242 Pa	3,070 rpm	32.2 W	58.7 dB(A)	230 V	View
LWFA2E133-092NS-02	278 m³/h	464 Pa	2,350 rpm	95 W	63 dB(A)	230 V	View
LWFA2E133-092SS-02	278 m³/h	464 Pa	1,750 rpm	95 W	63 dB(A)	230 V	View
LWFA2E133-092NS-01	299 m³/h	361 Pa	2,300 rpm	83 W	61 dB(A)	230 V	View
LWFA2E133-092SS-01	299 m³/h	361 Pa	1,850 rpm	83 W	61 dB(A)	230 V	View
LWFA2E133-092SS-03	319 m³/h	433 Pa	1,600 rpm	85 W	56 dB(A)	230 V	View
LWFA2E133-092DS-07	330 m³/h	309 Pa	1,450 rpm	70 W	40 dB(A)	230 V	View
LWFA4E133-092DS-04	567 m³/h	433 Pa	1,250 rpm	190 W	69 dB(A)	230 V	View
LWFA4E133-092DS-03	649 m³/h	371 Pa	1,400 rpm	180 W	69 dB(A)	230 V	View
LWFA2E133-092DS-08	726.15 m³/h	381.1 Pa	1,500 rpm	190 W	60 dB(A)	230 V	View
LWFA2E133-092DS-10	773 m³/h	433 Pa	1,200 rpm	250 W	58 dB(A)	230 V	View
LWFA2E133-092DS-06	886 m³/h	639 Pa	1,300 rpm	265 W	69 dB(A)	230 V	View
LWFA2E133-092DS-05	927 m³/h	494 Pa	1,350 rpm	250 W	69 dB(A)	230 V	View