Maintaining critical speed margins and torque transmission capabilities. The Inspection and Repair Process
This initial assessment is conducted on the rotor as it arrives at the repair facility. It typically includes:
Checking for obvious signs of erosion, corrosion, or mechanical damage. Api 687 Rotor Repair Pdf Download--------
Now in its , this document provides the technical foundation for restoring equipment to "like-new" or improved condition, ensuring at least five years of uninterrupted operation . Key Objectives of API 687
The primary goal of a repair performed under API 687 is to produce a safe, reliable rotating element that maintains its performance capabilities. Key objectives include: Now in its , this document provides the
If Phase I reveals major issues, the rotor is fully disassembled. Every individual component (impellers, disks, shafts) undergoes the same rigorous testing performed in Phase I.
Major erosion or corrosion should be repaired by welding, provided it is supported by a detailed "weld map" and documentation. titled Special-Purpose Rotating Equipment Repairs
Assessing the initial state of balance before any disassembly. 2. Phase II Inspection (Disassembled Rotor)
API 687 Rotor Repair: A Guide to Standards and Procedures , titled Special-Purpose Rotating Equipment Repairs , is the definitive industry standard for the inspection and repair of critical turbomachinery components like rotors, bearings, and couplings in the oil, gas, and chemical sectors.
Generally, methods like plasma spray, metalizing, plating, or sleeving are prohibited for repairing bearing journals, seal areas, and impeller fits unless specifically authorized.