Thermocouple Location for PWHT
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Shivprasad Yadav
Jan 22, 2022, 9:55:10 AM1/22/22
to Materials & Welding
Is there any specific clause in ASME Sec VIII DIV-1 & 2 for the thermocouple location criteria while carrying out the PWHT?
Jenish MISTRY
Jan 24, 2022, 4:36:58 AM1/24/22
to Materials & Welding
Hi,
As per above clause for controlling temperature gradiant you should have to place thermocouple in such a way that distance between any two thermocouple should not be more than 4.6 m .
As per ASME SEC.VIII DIV.I UCS-56 ,Please refer snap for details.
As per above clause for controlling temperature gradiant you should have to place thermocouple in such a way that distance between any two thermocouple should not be more than 4.6 m .
Additionally if you perform PWHT as per FEA than you also put thermocouple accodingly to full fill FEA requirement.
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