Thank you for your prompt reply
the plant (water treatment) is containing produced water lines in carbon steel NACE 0.175 (sour) and the interface between those line and SS are generally at chemical injection or cleaning fluid... which are in SS, so the Spec break is at check valve or normally...
Dear All
My query is if I have above ground piping carbon steel connected to above ground stainless steel , the fluid is a produced water, shall I install a isolation kit at each flanges connection to avoid any galvanic corrosion ? note that the CS and SS lines can be connected somewhere by...
thank you for your replies
the plant is under construction
mastertiger i think that nozzle pipe neck is included on pressure vessel boundary, concerning API 510 i didn't found any of this type of intervention.
Best regards
thank you gr2vessel for your quickly response, please find attached the discription of the problem, i think that we have to cut the nozzle neck pipe but the contractor ask if can avoid the hydrotest.the vessel are checked by VERITAS and no U stamp, and i prefer do not return to veritas and...
I have a an ASME VIII Divison 1 vessel which is now finished, tested and sitting at site.
However i want to cut a nozzle neck pipe of 2" in order to change the direction so a cut + 2 x 45° elbows may resolve the problem, but i'm not sure that such alteration need a new hydrotest or not, or this...
