Safety Flash
Failure of bail-out regulator
Failure of bail-out regulator
- IMCA
- Safety Flash
- IMCA SF 09/02
- DivingInspection and MaintenancePressure Systems
- CorrosionMechanical failurePressure systems
- Inspection and maintenance
- HoseValve
- Operating and work proceduresPressure relief
- Marine industry
- Vessel
Summary
Routine maintenance aboard a dive support vessel revealed corroded mild steel washers preventing a bail-out regulator’s relief valve from operating. The flash explains potential exposure of low-pressure equipment to full bail-out pressure and records instructions to check correct relief-valve components in both operational and stored standby regulators.
Classifications: Corrosion; corrosion damage.
Classifications: Mechanical failure; equipment failure.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Hose; flexible hose.
Classifications: Valve; valves.
Classifications: Operating and work procedures.
Classifications: Pressure relief; overpressure protection.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Vessel; aboard ship; onboard vessel.
Summary
Corroded, incorrectly fitted washers prevented a bail-out regulator relief valve from operating and could have exposed low-pressure equipment to full pressure.
IMCA SF 09/02. Themes: diving, inspection and maintenance, pressure systems.