High-temperature centrifugal fans handle hot air or gases in furnaces, kilns, and process ovens. Impellers and housings are constructed from Inconel or stainless steel alloys rated for continuous operation up to 500 °C.
Flow capacities range from 2,000 to 30,000 CFM at pressures to 6 kPa. Bearings are cooled via air or water jackets to maintain lubricant integrity.
Variable frequency drives (VFDs) enable thermal protection control, modulating speed to prevent over-temperature conditions and maintain precise airflow.
Maintenance features include split-casing for impeller access and external cooling loops for bearing lubrication. High-temperature centrifugal fans ensure safe, efficient airflow in the harshest thermal applications.