Centrifugal compressors are robust machines that can compress various gases. They are commonly used in oil and gas, air separation, chemical, iron and steel industries. Centrifugal compressors are classified based on design pressure and intake volume flow. Axial compressors attain higher pressures and volumes than centrifugal compressors. Isotherm compressors are single-shaft centrifugal compressors with integrated cooling that provide efficient process air compression.