Hydroelectric production equipment is largely composed of joint welded parts. The entire welding process is a special process requiring a high level of skills and special monitoring from design right through to production.

This will insure the sound operation and safety of the installations.
The Sion-based centre of expertise assures technical support and follow-up during each phase, from design to monitoring of installations.


  • checking and inspection of equipment
  • in accordance with EN.ISO.17635, EN.ISO.17638, EN.ISO.17639, EN.ISO.3452-1 and CCH70-3 standards
  • analysis of fitness for service in accordance with API.579 or BS.7910
  • research and design carried out in accordance with EN.13445, Eurocode EN.1993-1, Directives 97/23/EC and 95/16/EC, EN.1315
  • fabrication in accordance with ISO.3834-2

Specific skills

Our experts can :

  • provide technical support and/or training in the sectors of welding metallurgy, design, industrialisation and production of joint welded parts and lifting devices
  • performing or validating the WPS, welding specifications, product ranges as well as procedures or files relating to the production of joint welded parts
  • validate the design and dimensions of the welds
  • of joint welded parts and of lifting devices
  • supervise welding operations on location or on site
  • supervise the production of joint welded parts in the workshop
  • inspect joint welded parts
  • calculate the cracks propagation in joint welded
  • parts and perform an analysis of associated risks
  • performing and/or overseeing projects relating
  • to continuous improvement, cost reduction or welding automation

Client benefits

You will benefit from :

  • a complete range of services performed by experienced, qualified experts, who are few and far between in Switzerland
  • relevant information on the current condition and lifespan of the joint welded parts in operation
  • advice on repairs or potential improvements
  • a dedicated contact person offering a full range of services

Rue de l’Industrie 10, 1951 Sion
HYDRO Exploitation SA
Rue de l’Industrie 10
CP 315 - CH-1951 Sion
Contact us
HYDRO Exploitation SA
Rue de l’Industrie 10 CP 750 - CH-1951 Sion +41 (0)27 328 44 11
Send us an email Contact us via the form

Cookie policy

By continuing to browse this site, you agree to the use of cookies to improve your user experience and for the generation of visit statistics.

You can customise the use of cookies using the buttons below.

Accept all Reject all My preferences