Gas-insulated transmission lines

Extension housings are used to interconnect switchgear and bridge larger distances, for example from the switchgear to outgoing lines that connect with the high-voltage grid. These housings commonly consist of pressed or spiral welded aluminium tubes, with flanges made from wrought or cast alloys.
Wartmann Technology specialises in the manufacture of extension housings.


Verlängerungsgehäuse in der Lackiererei


  • Welding aluminium and stainless steel
  • X-ray and helium pressure testing
  • Painting

Contact Person.

Fabio Bertini
Sales Coordination & Engineering
+41 32 636 52 29

Benjamin Hippen
Head Sales & Innovation
+41 32 636 52 21