Dimensional drawing:

Performance Curve:

Connection Diagram:

Description:
The robust design of backward-curved centrifugal fans contributes to their low maintenance requirements and long service life. The backward curvature of the blades reduces particle buildup and erosion, common issues in forward-curved or radial-bladed fans. This durability is particularly advantageous in environments with dusty or corrosive airstreams, such as mining or cement production. Regular maintenance typically involves cleaning the impeller and housing, checking belt drives (if applicable), and lubricating bearings. With proper care, backward-curved fans can operate reliably for decades, minimizing downtime and replacement costs. Their longevity also reduces environmental impact by reducing waste and the need for frequent replacements.
Specifications:
Brand Name | YUTEC |
Impeller Material | PA66+GF25 |
Motor Type | BLDC External Rotor Motor |
Type of Protection | IP44 |
Insulation Class | Class B |
Speed Control | 0-10VDC/PWM |
Bearing | Ball Bearing |
Signal Output | FG |
Life Expectance | 50,000 Hours |
Electrical Protection | Locked Rotor Protection |
Reverse Polarity Protection | |
Over Voltage Protection | |
Soft Start |
Competitive Advantage:
Backward-curved fans exhibit consistent performance across a range of static pressures. Unlike axial fans, which may experience flow separation or instability at high pressures, backward-curved designs maintain predictable airflow and pressure characteristics. This stability ensures reliable operation in systems with fluctuating demands, such as industrial ventilation or dust collection, where consistent performance is essential for process efficiency and safety.