Safety Relief Valves; PD5500 vs ASME VIII
Safety Relief Valves; PD5500 vs ASME VIII
(OP)
What are the difference considerations applied to Safety Relief Valves when protecting either a PD5500 code vessel or an ASME VIII one? I know of only one, namely that that PD5500 limits the overpressure in all sizing scenario's to 10% whereas ASME VIII allows up to 21% in fire sizing conditions.





RE: Safety Relief Valves; PD5500 vs ASME VIII
Im not very familiar with PD5500 (or the old BS) allthough i know its a standard for designing pressure vessels - but the actual PSV requirements are now governed by PED.
Bestr regards
Morten