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  • Users: jmiles
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  1. jmiles

    Fitting difference

    Can someone explain to me what is the difference between a coupling and a weldolet or threadolet, are they essentially the same things? My actual question is in relation to welding these on to a vessel, fom that perspective are they essentially the same with just different ends? (I know a...
  2. jmiles

    Hydrotest Pressure for high temp vessel

    Hi, I have a vessel made of SA-516-Gr70N, the vessel max deign temperature is 500°F, the flanges located ont he vessel are ANSI 300. Now the drawings show a MAWP of 600 PSIG and a test pressure of 780 PSIG. ASME states that the test presure will be 1.3 times the MAWP times the ratio of the...

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