Dealing with wall thinning due to FAC (flow accelerated corrosion)on FW Heaters. Do not have Tmeasured yet. As it now stands,the nozzle neck will have to at least be .875*Tnom which will definitely keep the neck stronger than the connecting pipe. Seems to conservatve. Curious if other places...
Are there any thoughts about using ASME UG-45 (along with UG-27, -28, -37, -40) in the evaluation of a tmin for nozzle neck thickness? Or should UG-45 be left for the design and fabrication of a new vessel?
Thanks
jrley