An excellent challenge for the team of Manoir Industries

Manoir Industries has just successfully completed a contract at the ExxonMobil refinery in Notre-Dame-de-Gravenchon (Seine-Maritime) for the pre-installation and replacement of four economisers for the main boiler in the shutdown unit.


The services provided by Manoir Agriandre, Manoir AlloyServices® (MAS) and its partners included studies, filting and scaffolding with suitable insulation. A temporary mechano-welding structure was implemented and the two-step preparation pre-assembly of two pairs of two economisers and their replacement completed the contract.

A 400-tonne crane and a lifter, designed specifically by Manoir Agriandre, were needed to replace these four economisers. This contract mobilised about thirty people, and took four months in total to complete, in the workshop and on-site.

The various parties involved and the complexity of the project illustrate Manoir Agriandre’ skills and expertise in terms of welding, boiler-making, safety, and MAS’s project management.




They trust us

  • logo orano
  • Logo de Exxon Mobil
  • logo de air liquide
  • Caterpillar-Logo