The channel side of U-tube heat exchanger under corrosive service has a nozzle located at hill side. The lowest edge of nozzle is higher 0.7 inch than the lowest point.
"UG-25(f),Sec. Viii div.1, requires ' Vessels subject to corrosion shall be supplied with a suitable drain openin at the...
I have question about the PQR of P-No.4, FCAW process without impact test ans with PWHT below lower transition temparature.
A PQ test was conducted 8 year ago using ASEM 2001 Edtion. At that time, PWHT temperature required for VIII-div.1 was 1100 F minumum, but It had been changed from 2004...
Regarding Article AT-202.3,Section VIII Div.2
I would like to know exact meaning of "(a)be of the same p-number and Group number".
Does that mean the PQ test plates to be used shall be same P-no and Gr.-no regadless of Section IX requirements?
QW 403.5 states that if i qualify a procedure...