High-Efficiency Backward Curved Centrifugal Exhaust Fan for HVAC

High-Efficiency Backward Curved Centrifugal Exhaust Fan for HVAC. High Efficiency Design: Backward curved centrifugal structure ensures stable airflow and low noise operation. Durable Construction: Stainless steel material with IP54 protection and maintenance-free ball bearings. Long Motor Life: Average motor lifespan exceeds 24,000 hours for reliable long-term performance. Flexible Voltage Options: Supports AC single-phase 230V or three-phase 400V with 50Hz/60Hz frequency. Wide Application Scope: Suitable for HVAC, refrigeration, ventilation, duct fans, and roofing fans. Global Certifications: Holds ISO 9001, CE, and CCC certificates for quality and safety assurance. Energy Saving Performance: Designed for high energy efficiency with credible running and low noise.