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Babcock-Hitachi K.K.

Hitachi

  • Established quality assurance program and succeeded to get the certificate of Authorization twice. First time was Mar 17,1978 and the Certificate of Authorization was kept for nine years and then returned to ASME. The second time was Dec 19,1997. Now the Nuclear Reactor Pressure Vessel to be stamped Code Symbol N is on construction.
  • The scope of Certificate of Authorization are :
    • For Code Symbol N, class 1, 2, 3 and MC Vessels, class 1, 2 and 3 piping systems, class 2 and 3 storage tanks, class 1 control rod drive housings, and class 1, 2 and 3 shop assembly of stamped components, appurtenances, piping subassemblies and component supports.
    • For Code Symbol NA, class 1, 2, 3, MC and CS shop assembly of stamped components, appurtenances, piping subassemblies, component and core supports.
    • For Code Symbol NPT, class 1, 2, 3 and MC vessel parts and appurtenances, penetration assemblies, component supports and component support parts, class 1, 2 and 3 piping subassemblies, class 2 and 3 storage tank parts and appurtenances, class CS parts and appurtenances and class 1 control rod drive housings.