Hi Engineers,
I've Designed a pressure vessel, its required thickness is 11.113mm and i've selected 12.7mm as nominal thickness. After that I've performed WRC 107 calculation for 3" & 150# nozzle. If I use 11.113mm (required thk) in that WRC 107 calculation, then my nozzle is getting fail. If I use 12.7mm (nominal thk) in that WRC 107 calculation then my nozzle is getting pass for the same nozzle loads. Which thickness I've to follow for my calculation?