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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 14215008 - Pressure Vessel Ruptured; Employees Burned By Steam & Wax

Accident: 14215008 -- Report ID: 0454510 -- Event Date: 11/23/1985
InspectionOpen DateSICEstablishment Name
320873311/25/19852865Venture Chemical Inc.
ON NOVEMBER 23, 1985, EMPLOYEES #1 AND #2 MELTED PARAFFIN WAX FLAKES IN A VESSEL EQUIPPED WITH A STEAM JACKET. STEAM PRESSURE WAS ESTIMATED TO BE AT 135 PSI INSIDE THE JACKET. THE STEAM WAS CUT OFF TO ALLOW THE REPAIR OF A FAULTY OUTLET VALVE. WHEN THE STEAM WAS TURNED ON TO REMELT THE WAX THE INNER JACKET OF THE VESSEL COLLAPSED. THE MIXTURE OF STEAM AND HOT WAX WAS BLOWN OUT OF THE VESSEL, ONTO THE THREE EMPLOYEES. ALL THREE SUFFERED SECOND AND THIRD DEGREE BURNS OVER A LARGE PART OF THEIR BODIES. THE MAXIMUM ALLOWABLE WORKING PRESSURE OF THE VESSEL WAS CALCULATED TO BE 33.75 PSI. THE EXCESSIVE STEAM PRESSURE CAUSED THE FAILURE OF THE INNER JACKET.
Keywords: burn, pressure vessel, work rules, rupture, steam, high pressure
Employee # Inspection Age Sex Degree Nature Occupation
1 3208733 Hospitalized injury Burn/Scald(Heat) Occupation not reported
2 3208733 Hospitalized injury Burn/Scald(Heat) Chemical engineers
3 3208733 Hospitalized injury Burn/Scald(Heat) Occupation not reported

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