Hello All,
I have a query regarding re-rating of an existing PSV. If I have a PSV for which I know only the designation, for eg 8T10. I don`t have the process data for which the PSV was originally designed
Now I have an independent new system for which I have the required relief load based on which I estimate the PSV orifice area.
Can I say that, if the area calculated for my new process service is lower than the area for T- orifice, then the above mentioned PSV will work for my new system. Or do I need the old process data that was used for the design of existing PSV as well. If yes, what additional help the old process data will provide.
Please help.
Thanks