A centrifugal blower, also known as a turbo blower, is a medium-pressure gas pressurization device between ventilators and compressors. It mainly meets the demand for stable medium-pressure air supply. Its pressure level is much higher than that of ventilators while far lower than that of compressors, making it a key supporting equipment in metallurgy, environmental protection and chemical industries.

It features medium pressure, large flow rate and pulse-free airflow. Its outlet air pressure ranges from 15 kPa to 0.3 MPa with a compression ratio of 1.15 to 3. It operates stably with low wear and a long service life. The delivered gas is oil-free and clean with a low temperature rise during compression, so additional cooling is generally unnecessary. It is more energy-efficient than Roots blowers of the same pressure grade.