Efficient, Quiet Airflow for Low-Resistance Systems
When your priority is moving large volumes of air against minimal system resistance, the low-pressure centrifugal fan is a cost-effective and energy-conscious solution. Designed for clean air or non-fibrous gases at temperatures below 80°C, it excels in environmental control, equipment cooling, and comfort ventilation applications where pressure demands are low. Its design complies with international standards such as ISO 13348, and its efficiency meets requirements like the EU ErP directive, making it a smart choice for users focused on minimizing both initial investment and long-term operating costs.
Compact Design for Maximum Airflow, Minimum Energy
The hallmark of this fan is its forward-curved, multi-vane impeller. Featuring numerous short blades, it generates high air volume at relatively low rotational speeds, resulting in a compact footprint and quieter operation. The impeller, manufactured from cast aluminum or riveted steel sheet, is lightweight and dynamically balanced to ISO 1940 G6.3 standards. A simple rectangular or volute casing allows easy integration into AHUs, equipment cabinets, or light ducting systems. Primarily direct-driven, its compact design saves installation space and minimizes maintenance requirements.
Core Performance Parameters
The low-pressure centrifugal fan is precisely tailored for high-flow, low-pressure applications. Its defining specifications are outlined below:
|
Parameter |
Range / Specification |
|
Air Volume (Flow Rate) |
500 - 50,000 m³/h |
|
Pressure Range |
50 - 500 Pa |
|
Standard Speeds |
750 r/min (8-pole), 1450 r/min (4-pole) |
|
Operational Efficiency |
65% - 78% |
|
Impeller Balance Grade |
ISO 1940 G6.3 |
|
Typical Drive |
Direct coupling |
Ideal for Precise, Economical Cooling and Ventilation
In a large data center, the value of the Low-pressure centrifugal fan is clear. Integrated into server cooling modules, a unit delivering 8,000 m³/h at only 300 Pa, powered by a 1.1-2.2 kW motor, quietly drives cool air through server racks. Its pressure output is precisely matched to overcome the resistance of internal coils, filters, and short ducts, avoiding the energy waste of an oversized fan. This principle of exact matching also benefits commercial building fresh air units, light industrial exhaust, and retail space comfort ventilation, offering a blend of quiet efficiency, easy installation, and low lifetime costs.
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