Seven Deadly Sins

摘要

PRESSURE relief devices protect equipment from excessive under- and over pressure. The calculations and design methods employed are no different to those used in other areas of process and mechanical engineering. However, it is a specialist area, and although the broad strokes are familiar, there are many pitfalls for the unwary to fall into. This article covers seven areas where, in our experience, mistakes are commonly made. This is by no means a complete review of pressure relief and there are other areas equally worthy of discussion that aren't covered here. Hopefully though, it provides some useful information and will help engineers learn from others' mistakes, rather than making their own.