Credit: CSB On April 3, 2017, a catastrophic failure occurred at the Loy-Lange Box Company in St. Louis. A pressure vessel—the Semi-Closed Receiver (SCR), which stores hot condensate at 100 psig—violently ruptured. Propelled like a missile, it tore through the facility, launched through the roof at 120 mph, and crashed into a neighbouring building 520 feet away, killing four people …
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