Safety Flash
Failure of a high pressure gas charging hose
Failure of a high pressure gas charging hose
- IMCA
- Safety Flash
- IMCA SF 10/07
- DivingLine of FirePressure Systems
- Line of fireMechanical failurePressure systems
- Diving operationsFluid transfer
- HoseValve
- Energy and process isolationPositive retention and reliable securing
- Marine industry
- Vessel
Summary
A high-pressure charging hose ruptured during gas decanting for a small-craft diving system. Recoil sheared the valve fitting anchoring its whip check, causing restrained flailing. Isolation prevented injury or further damage. The flash urges consideration of anchoring reviews, hose inspection, alternative restraint designs and service-life assessment.
Classifications: Line of fire; struck-by hazards.
Classifications: Mechanical failure; equipment failure.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Diving operations; diving; commercial diving.
Classifications: Fluid transfer; fluid loading; fluid offloading.
Classifications: Hose; flexible hose.
Classifications: Valve; valves.
Classifications: Energy and process isolation; isolation; energy isolation.
Classifications: Positive retention and reliable securing.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Vessel; aboard ship; onboard vessel.
Summary
A Member has reported the failure of a high pressure (HP) gas charging hose during routine gas decanting to top up the gas banks of a mobile surface supplied diving system which had been installed into a small craft used for remote diving operations.
IMCA SF 10/07. Themes: diving, line of fire, pressure systems.