In response to thread794-476789.
I have recently found a code interpretation regarding the use of the higher allowable stresses in calculating the hub thickness go on an ASME Section VIII, Division 1 Appendix 2 integral flange.
The interpretation number is BPV-VIII-1-18-17.
I am working on an older (ASME Section VIII Division I, 1964 edition) shell and tube "hair-pin" type heat exchanger that has the following oddities.
1. Two-bolt process nozzles on the shell side and are cast into a fitting with only the following description, 2.5" IPS.
- Does anyone have a code...
In regards to post-forming heat treatment of SA-179 U-bends for a thickness of <= 0.134" via
Soak time (15min) at temperature (1150°F)(ASME Section VIII, Division 1 UCS-56)
vs
Brought to temperature via electric resistance (no soak time) to temperature (1150°F)
1. Has anyone studied the...
I have been having a debate with a colleague, in regards to the design of a distribution cylinder (vapor belt) on a shell and tube heat exchanger.
Several thoughts on this are:
1. Mandatory Appendix 9: Jacketed Vessels
a. Historically, this is the method that has been used in the...
I recall a number of years ago, when using short radius elbows for ASME Section VIII, Division I vessels there was a reduction to the allowable stress compared to that of a long radius elbow. Does anyone in the community remember what the reduction was and if so what was the document that...
ASME Section VIII, Division I, paragraph 13.4(a)(7), sub-paragraph 2. Indicates; "When vacuum exists, each loading case shall be considered with and without the vacuum."
As the mean metal temperatures (Ts,m and Tt,m) have a significant effect on calculating the tubesheet thickness.
The...
