Depending on your unique situation, airend replacements, overhauls, and rerates/derates can all serve as valuable solutions. Understanding the differences between these options can help you make the best decision to suit your specific requirements.
Historically, the inlet butterfly valves had been the industry standard for centrifugal compressors. However, in the last twenty years, the inlet guide vane has come to the forefront as an option providing additional energy saving benefits.