These look and are constructed like a pressure vessel - elliptical heads. There are even some calculations which look like they compared the design to ASME Section VIII calcs. But the ultimate MAWP listed on the name plate is 0.6 psig.
We are doing relief valve sizing for a client who has numerous vessels, which have an MAWP of 0.6 psig. We realize these do not fall under ASME, but if we were to install an RV, RD or tank vent at a Pset of 0.6 psig, what would be an acceptable overpressure?
Utilzing 10% or 21% for fire would...
