Vattappilly
Materials
- Jun 27, 2005
- 7
I believe in ASME Section.I, PW-39 doesn't mention about thermocouples.
In Section.VIII div.1, I guess UCS-56 doesn't talk about it although UW-40 mentions about it in UW-40 (c).
The reason why I brought this up is because we send all section.VIII vessels outside for PWHT just because we do not have thermocouples here and that way we can't meet the requirements of Section.VIII. But if you read that paragraph, it says, "where more than one pressure vessel............."
Does it mean that if we just put one pressure vessel in the furnace, can we get away without putting thermocouples ?
I saw the foot note:10; can it be just applicable to cases where we want to fully load the furnace by putting more than one vessel or vessel components?
and again why is section.I not insisting on thermocouples while section.VIII makes it mandatory?
In Section.VIII div.1, I guess UCS-56 doesn't talk about it although UW-40 mentions about it in UW-40 (c).
The reason why I brought this up is because we send all section.VIII vessels outside for PWHT just because we do not have thermocouples here and that way we can't meet the requirements of Section.VIII. But if you read that paragraph, it says, "where more than one pressure vessel............."
Does it mean that if we just put one pressure vessel in the furnace, can we get away without putting thermocouples ?
I saw the foot note:10; can it be just applicable to cases where we want to fully load the furnace by putting more than one vessel or vessel components?
and again why is section.I not insisting on thermocouples while section.VIII makes it mandatory?