On April 3, 2017, an explosion occurred at the Loy-Lange Box Company (Loy-Lange) in St. Louis, Missouri. The incident occurred when the bottom head of a pressure vessel called a Semi-Closed Receiver, which wasused in Loy-Lange’s steam system, catastrophically failed. The pressure vessel failure caused a boiling liquidexpanding vapor explosion (BLEVE) which fatally injured the Loy-Lange employee working nearby andlaunched the pressure vessel from the Loy-Lange building into the air. The vessel eventually crashed throughthe roof of a nearby business, fatally injuring three members of the public.
The learning objective of this course is to find out the cause and origin of this accident.
Franco F. Davati, P.E.
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This online PDH course can also be used as a continuing education course for the following.