Dear gr2vessels,
Thanks to you respond...wonder no one explains it to me.
Ok...
I have one vessel with this specification...
Shell
Inside Diameter , Dv = 806.000 mm
Thickness , Tv = 22.0000 mm
Nozzle
Outside Diameter , Dn = 152.400 mm
Thickness , Tn = 25.4000 mm
A result for wrc297 show it pass, but the warning message (below) are appear in the result.
"Warning - The ratio, Dn/Tn (6.000) is < 20
check the limitations of WRC bulletin 297."
So,I want to know, why it happens and why we can accept that. Because, as i know the limitation for wrc297 is Dn/Tn < 20
Thanks....
...ara...