Recently I had the pleasure of working with a team of engineers and EHS professionals on a PHA project for an Anhydrous Ammonia process. For those who may not know, hydrostatic relief valves are required on Anhydrous Ammonia processes, that are NOT associated with mechanical refrigeration, and unfortunately, there is little guidance on their design basis. For example, does a hydrostatic relief valve have to be “vented outside of a building” just like a pressure vessel relief valve? I finally found a team of engineers who say “yes” and how they designed their hydrostatic relief protection was both SAFE and EFFICIENT…
Hydrostatic Relief done RIGHT!
