p-CATTM is a non-invasive, non-destructive technology for performing pipe condition assessment. p-CATTM can determine remaining wall thicknesses over long sections (many kilometres) of pipeline as well as detect and locate defects such as air and gas pockets, internal blockages and restrictions, unknown connections, pipe material changes and cement matric loss from AC pipes.
p-CATTM works by analysing the partial reflection of a small, controlled transient signal that is injected into the pipeline. The signal is monitored and recorded by sensors that are temporarily installed on existing pipe fittings. The transient wave experiences partial reflection when it encounters any change in pipeline structure, including both known features of the system as well as other issues related to pipe deterioration.
p-CATTM can be applied on any pressurised fluid filled pipeline carrying potable, raw or waste water. p-CATTM is most suitable for long distance trunk mains and applicable for all metallic, concrete and AC pipes.