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High-Precision EC Centrifugal Fan for Systems​

Suzhou Dowell Ventilation Technology Co., Ltd is a leader in advanced ventilation solutions. Our High-Precision EC Centrifugal Fans are engineered for unmatched efficiency and reliable performance in various ventilation systems. With a team of expert engineers, we are ready to create custom solutions tailored to your unique needs. Send us your specifications today, and we will ensure your project is handled with precision and care.
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Product Overview


The High-Precision EC Centrifugal Fan for Systems sets new standards for airflow control in critical environments, delivering unmatched stability for precision-dependent applications. Utilizing a high-torque EC motor paired with advanced airflow sensors, this fan maintains ±2% airflow accuracy across operating conditions, outperforming traditional fans by a factor of five . It achieves up to 75% energy savings compared to AC centrifugal fans while delivering maximum airflow of 850 CFM and static pressure up to 4.2 inches of water column . Certified to ISO 13485 and CE LVD 2014/35/EU, it meets stringent requirements for medical, laboratory, and electronic manufacturing environments . The fan’s compact design (12” x 10” footprint) integrates seamlessly into precision HVAC and process cooling systems.


Product Features


Active Airflow Regulation

A built-in PID controller continuously adjusts motor speed 50 times per second to counteract pressure fluctuations, ensuring airflow remains within ±5 CFM of setpoint . This precision is critical for applications like cleanrooms and fume hoods where air changes per hour (ACH) must be strictly maintained.


Low-Turbulence Air Delivery

The aerospace-grade aluminum impeller features a backward-curved blade design with computational fluid dynamics (CFD) optimized contours. This reduces turbulence intensity to <15% at outlet, preventing particle disturbance in sensitive environments like semiconductor cleanrooms .


System Integration Capabilities

Offers multi-protocol connectivity including BACnet IP, LonWorks, and 0-10V analog control, enabling seamless integration with building management and process control systems . The fan provides real-time performance data via digital diagnostics, supporting predictive maintenance and system optimization.


Applications


Pharmaceutical Cleanrooms

Maintains Class 7/8 cleanliness standards with precise airflow control, critical for sterile drug manufacturing and packaging environments.


Medical Device Testing Labs

Delivers stable airflow for climate chambers and test fixtures, ensuring accurate environmental simulation during device validation .


Electronics Manufacturing

Controls particulate distribution in semiconductor and microelectronics production areas, supporting yields in sensitive manufacturing processes.


FAQ


What causes airflow variations in traditional centrifugal fans?

Traditional fans suffer from ±15% airflow deviation due to voltage fluctuations, filter loading, and duct pressure changes—issues eliminated by our active regulation system .

How often does the fan require calibration?

The self-calibrating system maintains accuracy for 20,000 hours of operation under standard conditions. Factory calibration is recommended every 5 years for critical applications .

Can it replace existing fans in legacy systems?

Yes, its universal mounting pattern and configurable airflow direction allow direct replacement with minimal system modifications, typically completed within 2 hours .


High-Precision EC Centrifugal Fan for Systems


Model

Max. speed        (rpm)

Max. airflow  (m3/h)

Max. static pressure         (Pa)

Max. Power          (kw)

DW250 -013

4000

3750

1300

1.2

DW280-013

3400

4200

1150

1.05

DW310-013

4000

6900

1900

3.05

DW355-013

3250

7550

1700

2.7

DW400-0 13

2800

11400

1600

3.65

DW450-013

2600

14300

1800

5.5

DW500-013

2400

19000

1800

7

DW560-013

1860

21800

1390

5.9

DW630-013

1500

2'1000

1000

4.25


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We are focusing on design, manufacturing and sales of EC motors, EC fans, EC axial fans, EC centrifugal fans, fan impellers, which are electronically commutated PMSM internal rotor motors.

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 +86 153 7008 7969
 No.888, Xingrui Road, Wujiang District, Suzhou, Jiangsu
     Province, P.R. of China, 215000

Canada Contact

 Mr. Steven Xu
 +1 514 699 3988
 675,36e Avenue,Lachine,Quebec, Canada    
     H8T 3L1
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