Manufacturing of heavy and mobile components for nuclear boilers, valves, motors and electric alternators

We manufacture the heavy and mobile components of nuclear reactors. With more than 10,000 components produced since 1970 for nuclear power plants in 11 countries around the world, Framatome has unique experience and expertise to supply its customers with components that meet the highest nuclear safety and quality standards.

Starting from large forged, molded and machined parts, Framatome assembles heavy components for the nuclear island: vessels, vessel heads, reactor internals, steam generators and pressurizers.

Framatome designs and manufactures highly technical mobile equipment: reactor coolant pumps (pump, motor and sealing systems, shaft seal) and control rod drive mechanisms.

Framatome manufactures components of different power ratings from 900 MW to 1,650 MW for EPR new builds. Replacement components for power plants in operation enhance performance and extends the life of the plant.

This also includes the manufacturing of steam generator tube bundles as well as tubes for various types of heat exchangers used in the active or passive safety systems of nuclear power plants.

Framatome supplies its customers with large nuclear components from its four major industrial sites in France: Le Creusot, Saint-Marcel and Montbard in Bourgogne-Franche-Comté, and Jeumont in the Nord department in northern France. Framatome is also present in China through its joint venture FDJV, a strategic partnership for the Chinese market.

Cutting-edge technologies are deployed in forging, machining, heat treatment, inspection and testing.

Framatome has also been deploying additive manufacturing solutions for the nuclear and defense sectors since the turn of the 2010s. In operation since May 2026, its center in Romans-sur-Isère (Drôme) manufactures parts from a few kilos to several tons, in dimensions ranging from a few millimeters to 5 meters with two advanced metal printing processes: molten wire and laser fusion on powder bed.

Our teams have over 60 years of experience in contributing to the design and construction of more than 90 reactors worldwide, including EPR new builds. In order to achieve the level of excellence expected by our customers, Framatome has centers of excellence and internal training centers right at the heart of its plants.

Framatome valve solutions line includes four subsidiaries serving the nuclear, defense and industries requiring high-performance solutions: Vanatome* and Segault*, Valserve and Sebim. The expertise of Framatome Valves brings high-tech solutions from design and manufacturing to life cycle management, including the installation and commissioning of industrial valves and safety valves.

Through its subsidiary JEUMONT Electric** acquired in 2024, Framatome offers a wide range of electrical equipment manufacturing, maintenance and replacement services for the nuclear and defense sectors. With four plants in France and one in India, JEUMONT Electric solutions also serve the civil shipbuilding and energy sectors.

*Framatome holds 70% of the share capital and voting rights in Vanatome and Segault alongside TechnicAtome, which owns 30%.
** JEUMONT Electric is a subsidiary of Framatome (69%) and Naval Group (31%).