Hi,
Is there a good way to develop Interlock numbering schemes on P&IDs. Should it be done on an equipment by equipment basis ?
Like a high level transmitter in a vessel has the same interlock number as the inlet SDV. The low level transmitter has the same interlock number as outlet SDV...
Thanks all for all your comments.
Will it be possible to find out the formulas to calculate the Q ( required flow rate ) I need to use for sizing the PSV.
Thanks in adavance.
dcasto,
Thanks for your reply. When you say 'PSV somewhere on the tube side' what exactly you mean by that.
In the scenario I mentioned, the high pressure gas from the shell side will enter the tube side.
What flow rate do I need to use to size the PSV . Also, where exactly this PSV should be...
Hi All,
I would really appreciate any help on this matter. Typically, I have sized PSVs for tube ruptures in a heat exchanger since the tubes were always at higher pressure. I ahd done these using API 520 and formulas in CRANE book.
What do I need to do and what formulas to use if the shell...
