Digest
Two valve actuator rupture incidents! — Process Safety Beacon, November 2010
Two valve actuator rupture incidents! — Process Safety Beacon, November 2010
- CCPS
- Digest
- Process Safety Beacon November 2010
- Machinery and EquipmentPressure SystemsProcess Safety
- Line of fireLoss of containmentMechanical failurePressure systems
- Inspection and maintenance
- Valve
- Competence and trainingContractor managementOperational supervisionPressure relief
Summary
Two valve operator failures expelled components without striking anyone. In the first, process gas entered a gear operator whose relief vent had been painted over; the second actuator’s failure cause remained uncertain. The bulletin emphasises understanding overpressure protection, maintaining documentation, training maintenance workers and inspecting their work before equipment returns to service.
Classifications: Line of fire; struck-by hazards.
Classifications: Loss of containment; containment loss.
Classifications: Mechanical failure; equipment failure.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Valve; valves.
Classifications: Competence and training; competency assurance; safety training.
Classifications: Contractor management; contractor assurance.
Classifications: Operational supervision.
Classifications: Pressure relief; overpressure protection.
Summary
One-page Beacon describing two incidents in which valve actuators ruptured.
Process Safety Beacon November 2010. Themes: machinery and equipment, pressure systems, process safety.