Safety Alert
Overfill of vapour recovery units
Overfill of vapour recovery units
- HSE
- Safety Alert
- CEMHD02-2023
- Hydrocarbon ReleaseProcess Safety
- Functional safetyLoss of containmentProcess safety
- Inspection and maintenance
- Storage tanksValve
- Functional testingManagement of changePreventive maintenanceRisk assessment
- Downstream and process industries
Summary
HSE warns that a gasoline overfill exposed dependence between a vapour recovery unit’s process controls and overfill protection, resulting in loss of containment. The notice calls for risk assessment, physical verification, inspection, maintenance and testing of safety functions, with independent safeguards and control-system modifications where required, managed through change procedures.
Classifications: Functional safety; safety instrumented systems; SIS.
Classifications: Loss of containment; containment loss.
Classifications: Process safety; major accident hazards.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Storage tanks; atmospheric tanks.
Classifications: Valve; valves.
Classifications: Functional testing; function test.
Classifications: Management of change; MOC; change management.
Classifications: Preventive maintenance; preventative maintenance; planned maintenance.
Classifications: Risk assessment; hazard assessment.
Classifications: Downstream and process industries; refining; petrochemicals.
Summary
Safety alert concerning overfilling risks in vapour recovery units.
CEMHD02-2023. Themes: hydrocarbon release, process safety.