Be present in the rehabilitation of the underground without disrupting the surface activity.

CCTV

Helios  offers  digital colour CCTV footage of pipelines from diameters 80 mm to 3000 mm.

Determining the conditions of a pipework is a relatively difficult task due to the obvious access limitations. However, recent technological advancements now enable pipeline inspections to be performed in a consistent way following techniques and guidelines set out by the industry standards. The tool of choice in all cases is CCTV footage  interpreted by a skilled operator.

Closed-Circuit Television (CCTV) video cameras mounted on small tractor devices or sleds are driven or pulled through the pipe to inspect and assess the condition of the system. When the CCTV starts out,  the distance counter is set on zero, which corresponds to the point where the camera records the edge of the manhole and the pipe interface. As the camera progresses down the pipe, the distance from its entry point is recorded, and an operator processes the finding  using standard coding methods.

CCTV imagery can be used to inspect pipe mains, as well as  connections and laterals. With these additional CCTV inspections the whole pipework is inspected to identify and locate any infiltration and leakage point.

Hydraulic Milling Robots

Occasionally, conventional CCTV robots are unable to advance through a pipeline resulting in an incomplete or abandoned survey. The most common case is that of an obstruction preventing passage that cannot be bypassed by the CCTV robot. In this case different measures and machinery are used.

Helios’s new hydraulic milling machine is the option to bypass these physical barriers. The milling unit can reduce the occurrence of abandoned pipeline assessments by grinding away hard materials such as concrete, and allowing the CCTV to continue the survey.

This hydraulic milling machine can be also used to facilitate the work after the inspection. Sometimes protruding obstacles are found inside a pipeline, which don’t necessarily block the entire line  but considerably reduce the flow capacity. In this case, the hydraulic milling robot will remove the obstacle and allow the pipe to operate at full capacity.

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