Investigation Report
Millard Refrigerated Services Ammonia Release
Millard Refrigerated Services Ammonia Release
- CSB
- Investigation Report
- Hazardous SubstancesProcess Safety
- Hazardous substancesLoss of containmentPressure systemsProcess safety
- Process pipework and pipelinesValve
- Emergency responseAtmospheric gas testingEnergy and process isolationOperating and work procedures
- Marine industry
- Port and quayside
Summary
This safety bulletin examines an ammonia release at Millard’s refrigerated export facility. It discusses hydraulic shock likely associated with omitted defrost bleeding, shared evaporator valve controls and continued refrigerant supply to ruptured pipework. Prevention lessons address individual valve groups, protected controls and emergency shutdown when releases cannot be promptly isolated.
Classifications: Hazardous substances; hazardous chemicals; chemical exposure.
Classifications: Loss of containment; containment loss.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Process safety; major accident hazards.
Classifications: Process pipework and pipelines; process piping.
Classifications: Valve; valves.
Classifications: Emergency response; emergency preparedness.
Classifications: Atmospheric gas testing; gas testing; atmosphere testing.
Classifications: Energy and process isolation; isolation; energy isolation.
Classifications: Operating and work procedures.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Port and quayside; quayside; harbour; harbor.
Themes: hazardous substances, process safety.