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Recent content by 69691

  1. 69691

    Exceeding the MDMT

    If one manufacturer orders a welded part for a Section 8 pressure vessel from another manufacturer and the "part" manufacturer has certified the part for -20 degrees F and has established a max pressure and max temp, when it possible to use the part below -20 deg. F? Can you direct me...
  2. 69691

    Computer Programs for Code alculations

    If you are using software for ASME Section 8 code calculations and the software manufacturer has reviewed the software for compliance with appropriate code edition and addenda, is this sufficient to comply with the requirements of the code? Is the addressed in the Code?
  3. 69691

    HYDRO-TEST AFTER REPAIR TO NEW VESSEL

    Since the pressure vessel is not ASME "U" stamped, it is up the manufacturer and/or owner of the vessel to come up with a solution. My recommendation would be to hydro test the vessel if possible. If not, when the new nozzle is being attached PT the root pass and PT or MT the cover...
  4. 69691

    best blowdown method?

    Remember a marine propulsion boiler blows down below the waterline of the vessel which means it discharges through the hull on the lower level of the engine room and many of the older boilers do not have low water cutouts. By controlling blow down on a marine boiler with the valve closest the...
  5. 69691

    "Unfired Steam Boiler" vs. "Power Boiler"

    Individual states and in some cases, jurisdictions within a state can set their own rules. Unfortunately, there are no standards/codes that everyone uses. The ASME Codes are there as a guide and a state can use them in there entirety or just a portion of them or not at all if they choose. In...

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