How to Choose the Best Fit Relief Valve From Permitted Sizes
This one is a table that I prepared a long long time ago and put it into my 'Scrap Book' :-)
Note:
This table is not about RV size selection based exclusively on flange Size but Instead, First perform all relevant API 520/521/526 based RV calculations for various relieving scenarios to arrive at the RV Orifice Size and Designation
So DO NOT use this table directly without performing RV sizing for all relevant scenarios
PROCESS ENGINEER - Oil and Gas Field - Engineering
5 年Thanks for sharing really I appericiate all articles you post.. for the PSV and fitting Selection generally i refered directly to API 526?
Mechanical Engineer (Rotary & Fix Utility Equipment) at Fakoor Sanaat (FSTCO)
6 年Fatemeh Mokari
Regional Director Northern Europe
6 年I would select a relief valve on various factors with the flange rating and size being a byproduct of the calculations.
Process Engineer
6 年Please Refer to API-526
Senior Licensing Engineer at INEOS Technologies
6 年Interesting table thank you. Could you explain your reasoning? Availability? Price? Valve inlet pressure drop? Mechanical strength? It is always best to be clear when dealing with relief devices. Regards Martin