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  • Users: sendelkr
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  1. sendelkr

    Non operable valves oin Shell Mesc

    Dear all, In certain Low temperature and cryogenic applications ,shell specifies valve bonnet to be non extended.. to be more specific it states the valves to be non operable valves (ref shell MESC 77/200). what are the service or requirements to go for these valves.. Thanks in Advance...
  2. sendelkr

    Requirement for HIC

    As per NACE MR 0175/ISO 15156 clause 8,Conventional forgings with sulfur levels less than 0.025 %, and castings, are not normally considered sensitive to HIC or SOHIC. from this the interpretation is that casting doesnt require HIC, Is the interpretation correct , or really castings...
  3. sendelkr

    HIC requirement for Castings

    As per NACE MR 0175/ISO 15156 clause 8,Conventional forgings with sulfur levels less than 0.025 %, and castings, are not normally considered sensitive to HIC or SOHIC. from this the interpretation is that casting doesnt require HIC, Is the interpretation correct , or really castings...

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