REPAIR AND OVERHAUL

Flow system

  1. Rotor’s repairing
    • blades replacement
    • sealing sheets replacement
    • regeneration of journal bearings
    • non-destructive tests
    • appraising the degree of wear and giving guidance for further exploitation
    • final mechanical working
    • in exceptional cases rebuilding of blade edges

     

  2. Turbine diaphragms and nozzles
    • degree of wear appraising
    • weld regeneration
    • rebuilding of blade edges
    • sealing replacement
    • final mechanical working
    • guidance for further exploitation

     

  3. Nozzle boxes
    • degree of wear apprising
    • defect removing
    • revitalization (material structure regeneration)
    • welding repairs
    • mechanical working and components assembly
    • guidance for further exploitation

 

Hulls and stuffing boxes

  • degree of wear apprising
  • defect removing
  • revitalization (material structure regeneration)
  • welding repairs
  • mechanical working and components assembly
  • guidance for further exploitation

 

Valves and servomotor overhaul

  • valve elements regeneration (e.g. diffusers, sleeves)
  • manufacturing new components, including stellites and CRC (chrome carbide) coating
  • motion and pressure tests (creating of motion characteristics)
  • degree of wear apprising and revitalization of valve chamber casings
  • welding surface regeneration
  • final mechanical working

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