Buried pipelines often operate in a state of anonymity. A condition assessment programs allows for a comprehensive understanding for pipeline conditions and is a critical component in asset management.

The ePulse®  condition assessment solution can identify the condition of both distribution and transmission mains, while simultaneously searching for leaks, all without the need for large excavations or service disruptions. ePulse® technology is a utility friendly condition assessment approach that does not require access to the inside of the pipe or extensive support from utility field crews, ensuring the collection of information about buried water main assets is simple, quick and cost-effective.

For both transmission mains and distribution mains, acoustic sensors are attached to existing contact points such as fire hydrants, valves access chambers or directly in contact with a pipe. A sound wave is induced in the pipeline and travels along the pipe with the acoustic sensors capturing the time it takes the sound wave to travel between two sensor stations. The speed at which the sound wave travels is dictated by the condition of the pipe wall. As the sound wave travels, it pushes water molecules toward each other and because water is incompressible, the molecules push outward on the pipe wall. This places a microscopic flex on the pipe wall — and the greater the flex, the weaker the pipe. Through this method, ePulse® measures the actual strength of the pipe wall which is an ideal measure of actual pipe condition. Data is captured in the field using two receivers and computer analysed with the results providing information related to the reliability of the pipelines to perform as designed or determine corrective measures needed to return the pipelines to full operating capability.

Pipe Diameters

• Distribution Main – 4 inches to 12 inches
• Transmission Main – 16 inches to over 90 inches

Pipe Materials

• Asbestos Cement (AC) Pipe
• Cast Iron (CI) Pipe
• Ductile Iron (DI) Pipe
• Steel and Mortar Lined
• Pre-stressed Concrete Cylinder Pipe (PCCP)