API
API 617
Axial and Centrifugal Compressors and Expander-compressors
The compressor standard for refinery and petrochemical service, covering design, materials, rotordynamics, testing and allowable nozzle loads. As with API 610 for pumps, the permitted piping loads are small, and exceeding them shows up as alignment, vibration and seal trouble rather than as anything a piping walkdown would notice.
This is an explanation, not the standard. PipingInspector is not affiliated with API and reproduces no part of the document. Always work to the current edition of the standard itself and to your project specification.