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  1. charles_ac

    ASME B31.3 2018 - Minimum impact test exemption temperature reduction

    In ASME B31.3 revision 2018, for the minimum impact test exemption temperature reduction, the code establishes 3 conditions for the use of applicable requirements: (1) The piping is not in Elevated Temperature Fluid Service. (2) Local stresses caused by shock loading, thermal bowing, and...
  2. charles_ac

    Set Pressure Tolerance for Pressure Relief Valves

    The set pressure tolerance for pressure relief valves shall not exceed ±2 psi (15 kPa) for pressures up to and including 70 psi (500 kPa) and ±3% for pressures above 70 psi (500 kPa), Ref. ASME Sec. VIII, Div. 1-2019, Para. UG-134(d)(1). My question is: Should this tolerance be understood to...

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