Nukie
Nuclear
- Oct 11, 2001
- 23
HI all ,
I have a question regarding the rating for class 150
According to B16.5 1977
the pressure for @200deg is 195 psi
According to ASME SectIII Addendum S or W74
(which refer to B16.5)
the pressure for @200deg is 240 psi
It seems to had change after 1974 and before 1977
Anyone can tell me when this change has occur ?
Is it possible to have more details for this change ?
Regards
I have a question regarding the rating for class 150
According to B16.5 1977
the pressure for @200deg is 195 psi
According to ASME SectIII Addendum S or W74
(which refer to B16.5)
the pressure for @200deg is 240 psi
It seems to had change after 1974 and before 1977
Anyone can tell me when this change has occur ?
Is it possible to have more details for this change ?
Regards