Reference No: A0095

In-Core Guide Tube Repairs

Main description

The control rod guide tube is a safety component which ensures timely control rod drop. Wear may occur on the guide plates, in which case guide tube replacement is required. Framatome offers solutions for guide tube removal and replacement. Our customers can choose to replace a guide tube either with a new tube or with a refurbished tube. Two guide tubes can also be switched. The work is performed underwater during a normal outage while the upper internals are on their stand. The operators work from the refuel bridge or an auxiliary platform.

CUSTOMER BENEFITS

  • Challenge solving Challenge solving
  • Operator competitiveness Operator competitiveness
  • Safety excellence Safety excellence
  • Efficiency of operation Efficiency of operation
  • Expertise Expertise
  • Challenge solving
  • Safety excellence

Sub-Products

Bottom Mounted Instrumentation nozzle plugging

Brushing machine for in-core instrumentation sensor drive cables

Grinding of in-core instrumentation nozzles

In-core detectors maintenance risk mitigation : DISVP

In-core maintenance tools and consumables

POLAIR: all in one tool for in-core instrumentation maintenance (dose reduction)

Thimble tube brushing machine and extension cleaning brush

Thimble tube cutting device