The pump, which had been in service for more than forty years, was removed and shipped to the service center in Buenos Aires. The initial inspection revealed damage to the pump body as well as corrosion of the pump case. The shaft was damaged and all the wear rings would also need to be replaced.
The pump shaft was removed and inspected in-house using non-destructive testing (NDT) procedures and found to be damaged beyond repair so it was also replaced. These tests are crucial in detecting structural flaws and in this case, tests were conducted on all of the pump components.
Once the full extent of the required repair had been established, the casing walls were rebuilt using a welding process that adds a layer of material that can be machined back to specifications. With the welding complete, this section was again inspected using NDT before the casing was transferred to the machine shop where it could be re-bored.
“It is essential in any overhaul project to deliver the best possible solution and ensure the customer is kept up-to-date. It is also important to understand the expectations of your customer and make every effort to deliver a cost-effective and reliable repair.”
“The customer was looking to the future and by discussing possible solutions, was able to assess all the options and make an informed decision. The refurbished asset will provide cost-effective and reliable service for many years to come.”
Head of Marketing Communications PE/RES
Sulzer Management Ltd.