Cracking a flange with stored steam energy kills two maintenance techs (OSHRC)

World-class safety can be summed up in this manner…

The ability to recognize a serious hazard that can be controlled by an existing safe work practice that is in place for complying with a different OSHA standard. 

If you’re a process safety engineer/practitioner you have dealt with “line break/process opening” for your Highly Hazardous Chemicals (HHC) and Extremely Hazardous Substances (EHS) within your “covered process(s)”.  Truly world-class organizations have adopted their “line break/process opening safe work practices to “steam” as well.  Heck some clients have even adopted the practice to manage even their “hot water”.  Line Break and Process Opening is a LAYER of protection on top of the traditional LOTO practices.

In this OSHRC decision, two maintenance workers lost their lives when a feather rendering machine became plugged and an attempt to bleed off the steam was done by loosening some bolts on a flange.  Take notice that they had closes the steam supply valve – the steam was a “stored energy”.  The flange failed and the two workers died from their burns.

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