Engineering Plant Guide
PRESSURE PLANT
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Bulk Storage Vessels
- Description
- These vessels are generally installed where there is a requirement for the bulk storage of fluids. Some fluids e.g. Chlorine, Ammonia, LPG may be stored under pressures greater than 0.5 barg.
The vessel maybe pressurised with a blanket of nitrogen to ensure that the product does not become contaminated.
- Periodicity of Inspection
- Will vary depending on risk assessment
- Why Inspect It
- The main hazard with this type of plant is that the vessel may fail because its safe working pressure has been exceeded or because its ability to withstand pressure has been reduced through in-service degradation e.g. corrosion or fatigue.
Where the vessel contains a hazardous fluid i.e. toxic or flammable then a more rigorous approach to plant inspection may be necessary.
Flat bottom storage vessels present an additional issue with respect the integrity of the base.
