Reference No: A0149

Reactor coolant pumps (RCP) internals replacement - For PWR reactors

Main description

Reactor Coolant Pump (RCP) internals shaft replacement is a complex repair often involving replacement of the shaft and impeller. This replacement raises the risk of RCP vibration with the new impeller. Framatome’s Pump & Motor specialists can match machine the new shaft with the existing impeller. You know how the existing impeller will perform, so when you start up your pump there are no surprises. In addition, by utilizing the parts you already have, you save money. Performance certainty is increased by using existing parts. RCP vibration risk is reduced, the salvaging of existing impeller reduces cost of Repair.

Product Sheet


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


Hollow Shaft and upgraded impeller

Upgraded Thermal Sleeve