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  1. govindarasu

    Restriction of ASTM A193 B8 Cl 2 bolting in ASME B31.1 for more than 100 Deg F.

    Dear metengr, Thanks for your explanation. I can understand partially that when the strain hardened material soften if it is subjected to increase in temperature. But I could not realize that ASME Committee restricting even at the atmospheric Temp (100 Deg F). At the same time B31.3 allowed up...
  2. govindarasu

    Restriction of ASTM A193 B8 Cl 2 bolting in ASME B31.1 for more than 100 Deg F.

    Dear Sirs, There is a restriction in the ASME B31.1, Allowable stress Table A-10 for the use of ASTM A193 B8 Cl 2 bolting material above 100 deg F. The allowable stress values were given up to 100 Deg F only. We understand that the B8 Cl 2 material can not be used more than 100 Deg F. How ever...
  3. govindarasu

    Valve Selection criteria for Non Slam Check Valve (Nozzle type)

    Dear Mr. Stanier, Mr Gerhardl & Mr Machiel, Thank to all of you for providing such a informative reply. Thanks
  4. govindarasu

    Valve Selection criteria for Non Slam Check Valve (Nozzle type)

    When we are working in a Oil & Gas or Petrochem projects, the process persons specifying the Non Slam check valve in the P&ID's. In general, Non slam check valve means we will consider the Nozzle type. How ever some vendors proposes the Dual plate check valve as Non Slam Check valve. Of course...
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