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Engineering Plant Guide

PRESSURE PLANT

 

Jacketed Reactor Vessels

Description
These vessels are generally installed in chemical process systems. The jackets (or coils) may be supplied with a variety of heating and cooling fluids such as steam, water or thermal fluid.

The vessel maybe pressurised with a blanket of nitrogen to ensure that the product does not become contaminated.
Applicable Legislation
PUWER / PSSR / COMAH
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.
Jacketed Reactor Vessel