Curapipe’s TALR solution repairs the many leaky holes and cracks in urban water pipes that normally remain undetected by existing detection technologies.
A pipe diameter of 50mm and above.
The TALR procedure is designed to work with any type of pipeline (ferrous, plastic, cement, asbestos, etc.). In general the pipe’s structural integrity needs to be in a satisfactory condition.
Yes, the water supply is shut off for the duration of the procedure which is typically 3-4 hours.
The length of the treated pipe section can vary. However, it will typically follow the distance between fire hydrants applied for insertion and extraction points (i.e. typically between 100m – 300m).
If these are not available, other types of insertion and extraction points could be used such as air vents, laterals or specially constructed tapping points.
The procedure can handle even high densities of service connections (e.g. 120 service connections-per-km) however service valves/taps need to be closed off during the operation.
For all practical purposes, there is no limit to the number of leaks in the treated section. All typical leak shapes are treated. The accumulated quantity of leakage within the treated section can reach as high a rate as 200 cubic-meters-per-km-per-day for a 100mm diameter pipe (for larger diameters the quantity increases by a power of two). A single pinhole leak of diameter larger than 8mm however should be addressed by routine active leakage control rather than TALR.
TALR can be applied at the standard operating pressure conditions of the pipe but not less than 2 bars.
-5ºC to +90ºC.
The TALR pig train can (thanks to the built-in flexibility of the pigs) traverse a tuberculated pipe without the need for pre-cleaning the pipe.
No, TALR is not just another trenchless liner technology. Its purpose is to pinpoint the leaks and surgically seal and cure them.
TALR not only seals the leak but also cures it, thus providing a long term solution. The lifetime of the solution also depends on the host pipe but in general is designed to last 3-4 decades. It therefore typically lasts for the remaining lifetime of the pipeline.
By curing small and medium size leaks before they develop into bursts/breaks, TALR can help with delaying the need for pipeline replacement.
The applied curing substance is especially designed that no undesirable components enter the potable water. The TALR procedure normally requires appropriate certification by local health authorities. In certain jurisdictions TALR is already certified.
No. In fact, these two interventions are complementary. Active leakage control takes care of the high value leaks as they occur and prevents leakage from increasing. TALR should be introduced when leakage levels are required to be reduced.
TALR embraces important differentiators collectively underscoring the potential for bulk reduction of leakage. These include a low cost-per-meter of treatment, an automated rapid deployment mechanism, and no urban social disruption.
Tens of millions of liters of water per day being saved by bulk reduction of leakage can impact the scale of developing new sources of drinking water, as well as saving up to tens of megawatt-hours of energy daily and tens of thousands of carbon credits each year.
TALR can be considered a good alternative when the mains has excessive leakage, when structural integrity is not an issue and when there are budget constraints and/or limited tolerance of urban social disruption associated with mains replacement.