Engineering Plant Guide
PRESSURE PLANT
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Hot Water Boilers
- Description
- This type of plant is used in a variety of situations and industries. Typically hot water is used for production purposes and heating.
Systems generally comprise of hot water boiler, pipework and protective devices e.g. safety valve, pressure gauge, high temperature cut-outs and flame failure devices.
- Periodicity of Inspection
- PUWER - 12 months
PUWER applies to those boilers in which the water temperature is below 100°C.
PSSR - 14 months
PSSR applies to those boilers in which the water temperature is at or above 100°C.
- 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, fatigue or excessive scale on the heating surfaces.
