Heat tracing is used to prevent heat loss from process fluids being transported in process fluid pipes, when there is risk of damage to piping, or interference with operation such as fouling or blockage, caused by the congealing, increase in viscosity, or separation of components, in the fluid below certain temperatures, or when there is risk of formation of corrosive substances or water due to condensation in corrosive services. This prevention of heat loss is accomplished by employing electrical tracing, or Steam tracing, and insulating both the process fluid pipe and the tracer together, using appropriate insulation materials & metal lagging is vital on any application, in an attempt to reduce heat loss from the pipe and tracer to their surroundings.

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