API Recommended Practice 687 () is the industry standard for the inspection and repair of special-purpose rotating equipment, including rotors, bearings, and couplings. The current 2nd Edition (released in 2023) expanded its scope to include stationary components and updated guidance on modern repair technologies and shop selection. Core Content & Phases of API 687
A "better" repair following API 687 strictly avoids certain temporary fixes for critical areas like bearing journals, seal areas, and impeller fits. Unless specifically authorized, the standard the following methods for these regions: Plasma spray or metalizing. Plating or sleeving. Mechanical straightening. Key Sections & Best Practices api+687+rotor+repair+pdf+download+better
If you cannot download a comprehensive repair report (in PDF format) that mirrors the API 687 checklist, you did not get a better repair. API RP 687 API Recommended Practice 687 ()