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  • Users: mw2005
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  1. mw2005

    B31.3 Allowable stress for stress range.

    Hi all, I have a case where one branch is at high temperature while adjacent pipework cycles from cold to hot. When calculating stress range, the allowable stress range at branch is calculated using SA=f(1.25Sh+0.25Sh) rather than f(1.25Sc+0.25Sh). Is it due to the fact that branch is at high...
  2. mw2005

    Occasional Stress Case: Hot Sustained or sustained

    While calculating occasional stresses we separate out the effect of occasional loading such as Wind or psv force. It is then added to sustained case using the scalar combination. My question is if it should be added to hot sustained case which is the actual sustained case at operating position...
  3. mw2005

    Modelling of pipe support at pump inlet

    Hi, I have a tee (with blind flange) at the pump suction instead of more commonly used elbow. There is an eccentric reducer with the inlet nozzle, then a tee with blind flange and vertical pipe (see the sketch attached). The pipe is supported at tee and pump is supported at centerline of the...

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