AHC Oberflächentechnik

Components for liquid helium valves that operate in the cryogenic stage of the Ariane 5 were coated by electroless nickel with embedded PTFE-particles. The coating provides a permanent operational readiness of the valve.



  • DURNI-COAT® process
  • Electroless Nickel-plated guide rails
  • low-friction, oxide ceramic layer
  • KEPLA-COAT®
  • liquid helium valves
  • MAGPASS-COAT®
  • anodisation of aluminium components

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