Re-machine shafts, apply protective coatings, and replace damaged blades or impellers.
If a repair contract is awarded following Phase I, the shop proceeds with the restoration work. Once the welding, machining, or coating is complete, Phase II begins. This is a post-work inspection that confirms the rotor now meets or exceeds the original OEM specifications. The final report must document the results of all repairs, new dimensions, and the final balancing results.
For centrifugal compressors, inspect impellers for erosion, corrosion, and blade root cracking using specialized NDT techniques.
Do not rely on outdated copies or guesswork. Purchase the official 2nd Edition of RP 687 today to safeguard your most critical assets.
While basic repairs look attractive on a short-term balance sheet, upgrading your repair specification to API 687 standards delivers vastly superior machine reliability, lower total cost of ownership, and verifiable risk mitigation. 1. What is API 687 and Why Does It Matter?
The Definitive Guide to API RP 687 for Special-Purpose Rotating Equipment Repairs