ALLOY PRODUCTS MODEL 74 304 PRESSURE VESSEL T268616

This is a modern, high-pressure variant of the Model 74. The 205 PSI (14.1 BAR) rating is significantly higher than the standard 140 PSI units, moving it into the "Heavy Duty" category. The "UM" stamp (Unfired Miniature) is an ASME designation for smaller vessels that still meet rigorous Section VIII, Div. 1 safety standards but fall under specific volume-to-pressure ratios.