Product Introduction
The DC Backward Quiet EC Fan is a sophisticated energy saving EC fan that leverages backward curved blade technology for superior airflow efficiency and minimal sound emission. As a premium backward fan, it integrates advanced EC (electronically commutated) motors to deliver precise speed control on DC power, achieving whisper-quiet operation ideal for noise-critical zones. This backward curved centrifugal fan is perfect for applications in cleanroom fan environments, medical fan devices, or residential ventilation systems, where it provides high static pressure with reduced energy use. Its innovative design not only enhances longevity but also supports sustainable practices, making it a favored choice for engineers prioritizing a low noise fan that balances performance and eco-friendliness in compact installations.
DC backward quiet EC fan technical parameters:
|
Model No. |
Rated |
Operation Voltage |
Rated |
Rated |
Rated |
Air Flow |
Air |
Noise |
|
VDC |
VDC |
A |
W |
RPM |
m3/h |
Pa |
dBA |
|
|
EN-B220-H044-D024-A01 |
24 |
18~32 |
4.25 |
102 |
3000 |
1100 |
580 |
71 |
|
EN-B220-H044-D048-A01 |
48 |
36~57 |
2.13 |
102 |
3000 |
1100 |
580 |
71 |
Outline Drawing
Performance Curve
Connection
|
DC Wire |
|
|
Color |
Function |
|
Red |
024/ 048/ 310VDC |
|
Blue |
GND |
|
Yellow |
0~10VDC/PWM |
|
White |
FG |
This outline drawing presents the technical blueprint of the DC Backward Quiet EC Fan, outlining critical elements like blade angles and housing contours for informed deployment. Functioning as an advanced backward fan, its EC fan architecture features a streamlined profile with dimensions optimized for radial efficiency, typically around 140mm in span for versatile fitting. The schematic underscores the backward curved centrifugal fan's impeller geometry, which promotes smooth air acceleration and low turbulence, aligning with low noise fan standards. Included are DC connection diagrams for seamless wiring, facilitating integration into energy saving EC fan networks. Draw on these precise illustrations for system blueprints, especially when utilizing this EC fan as a quiet ventilation component in setups demanding acoustic discretion and adaptive mounting.
An intimate close-up of the DC Backward Quiet EC Fan exposes its refined engineering, including the elegantly swept backward blades that define its status as a high-efficiency backward fan. This energy saving EC fan's detail view accentuates the precision-machined rotor, curved to deflect air radially with minimal resistance, complemented by vibration-isolating mounts for enhanced stability. Spot the integrated EC controls and sealed electronics, engineered to sustain low noise fan thresholds below 35dB, ensuring serene functionality. The image further illustrates the compact inlet design, tailored for optimal pressure handling, rendering it suitable for backward curved centrifugal fan roles in cooling or exhaust scenarios where quiet, reliable operation is indispensable.
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FAQ
Question: What are the standards for marine fans?
Answer: Marine fans must be certified by class societies (e.g., DNV, ABS) and feature motors resistant to moisture and salt spray, often requiring non-sparking construction.
Question: What is a Roots blower?
Answer: A Roots blower is a positive displacement machine that uses counter-rotating lobes to move a fixed volume of air, delivering constant flow for applications like pneumatic conveying.
Question: What is the purpose of grain bin fans?
Answer: Grain bin fans are used to dry stored grain and control temperature to prevent spoilage, typically requiring high static pressure to push air through dense grain layers.