HYDRO Exploitation provides all the services needed to maintain and repair impellers and turbine wheels (Francis, Pelton, and Kaplan) as well as their constituent components, regardless of size. This work is carried out in our workshops or on site for wheel polishing.


  • repair procedures for wheels and turbine and pump components
  • removal of covering by sand blasting (if necessary)
  • non-destructive testing of pores and cracks (PT and MT procedures)
  • resurfacing by welding MIG/MAG, TIG
  • machining or grinding of hydraulic profiles according to templates or 3D scans
  • heat treatment
  • static and dynamic balancing
  • provision of an anticorrosion covering (if necessary)
  • final inspection
  • technical documentation

Specific skills

HYDRO Exploitation experts have specific skills that are derived from their wealth of experience in the operation of hydroelectric facilities, regardless of size or output. The company has qualified mechanics and grinding and welding specialists whose experience is attested by ISO 3834 certification (welding technique).

Client benefits

Clients who choose this service benefit from :

  • a single intermediary for the maintenance and repair of their installations, in the workshop and on site
  • quality workmanship guaranteed by ISO 3834 certification in welding techniques
  • documented and recorded work
  • flexible deadlines
  • engineering advice and support from HYDRO Exploitation during particular service provisions

Rue de l’Industrie 10, 1951 Sion
HYDRO Exploitation SA
Rue de l’Industrie 10
CP 750 - CH-1951 Sion
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Contact us
HYDRO Exploitation SA
Rue de l’Industrie 10 CP 750 - CH-1951 Sion +41 (0)27 328 44 11
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