Electromagnetic Testing of Concrete Pressure Pipe

Electromagnetic inspection technology provides the best condition assessment data for Prestressed Concrete Cylinder Pipe (PCCP) and Bar-Wrapped Pipe (BWP).

Fluid

Potable Water
Raw Water
Wastewater

Pipe Material

PCCP (AWWA C301)

Pipe Diameters

External : Any
Internal : 18" (450mm)

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Electromagnetic testing detects and quantifies the number of breaks in the prestressing wire that strengthens the concrete pipe. This type of inspection provides water and wastewater system operators with information on the location, distribution and number of wire breaks along the length of the pipeline.

How it works:

Electromagnetic inspection technology functions much in the same way as a radio transmitter and receiver. The "transmitter" produces an electromagnetic field. The prestressing wires in the pipe amplify the signal that is recorded by the "receiver". If there are broken wires, the signal is distorted. A measurement of the distortion quantifies the number of broken wires.

Advantages:

Identify individual pipe segments that have wire breaks.
Prioritize repair and replacement programs based on the actual condition of individual pipes.
Periodic re-inspections of a given pipeline allow for the calculation of residual life expectancy.
Accurately value pipeline assets, thereby complying with legislative requirements.
Minimize the risk of pipeline ruptures that can result in public safety issues, or lengthy pipeline shutdowns.
Highest degree of wire break detection accuracy due to an optimized and patented design.
Our operations staff are highly trained and have the most experience in inspecting, analyzing and reporting on PCCP condition.
Multiple inspection platforms for virtually any inspection situation.

PCCP Electromagnetic Inspection Platforms

Service		Application	Pipe Material	Pipe Diameter
	PipeDiver® - PCCP Specifically designed for structural assessment of Prestressed Concrete Cylinder Pipe (PCCP) lines that are live or can’t be taken out of service due to a lack of redundancy or operational constraints.	Operating water and wastewater pipelines	PCCP	24"+ (>600mm)
	PureRobotics™ Long range, multi-sensor robotic inspection vehicles are capable of conducting electromagnetic inspections on PCCP pipelines.	Depressurized and partially dewatered water and wastewater pipelines	PCCP	18"+ (>450mm)
	Manned Entry Inspection Tools Field technicians enter the pipeline with an electromagnetic inspection tool (e.g. push cart, bicycle) and traverse the length of the pipeline.	Depressurized and partially dewatered water and wastewater pipelines	PCCP	36"+ (>900mm)
	External Inspection Tools Condition assessment tools that works from the outer surface of a prestressed concrete cylinder pipe (PCCP)	Exposed pipelines	PCCP	Any