CEP: Process Safety Beacon - Hot Work Hazards

August
2012

A contract welder and a foreman were repairing an agitator support on top of an atmospheric-pressure storage tank. The tank contained a polyvinyl fluoride slurry with a flammable concentration if vinyl fluoride in the vapor space. An explosion killed the welder, injured the foreman, and blew most of the top off of the tank, leaving the agitator hanging over the tank side.

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