This is a pre-existing vessel. Apparently, the site has calculations to show that the vessel can withstand the deflagration pressure... but we are trying to determine if the site is required to register it with the local jurisdiction.
If I have a piece of equipment that functions like a gravity-fed silo normally operating at atmospheric but may experience an internal dust explosion, is this equipment considered a pressure vessel? In the previous versions of ASME VIII-1, UG-22 did not have a paragraph (i), while the newer...
