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  • Users: Skatemav86
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  1. Skatemav86

    Flange bolts preload stress: ASME II Part D vs. PCC-1

    Hi, According to ASME II Part D Table 3, the Maximum Allowable Stress S for a Section VIII Div. 1 bolting material is Su/5. However, the default preload stress of a flange bolt according to ASME PCC-1 is 50%Sy, well above the Allowable Stress S. Thus, if preload is applied correctly, the bolt...
  2. Skatemav86

    O-Ring (or alternative) sealing solution for a pressurized casing

    Hi all, I have a problem when trying to seal the pressurized casing in the image below. Initially, I have thought about 2 axial o-rings and 2 longitudinal o-rings (as shown), but I don't know how to avoid possible leakage at the o-ring interfaces. The fluid is cyclopentane at 260 °C. Do you...

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