Pipe renovation is considered as an expensive project as the water companies need to invest millions of dollars to the project as well as provide temporary drinking water infrastructure that is safe from bacteria and other contaminants. Sadly, the rate of pipeline replacement is lagging behind the government’s projection. With that said, the emergence of innovative and powerful water main relining technologies might provide the answer to a cost effective and safe alternative to pipe renovation. |
Renovation of pipes depends on the sizes of the pipes as well as the classification of the lining system that needs to be replaced. Most liners that act as barriers for corrosion are considered as non-structural liners; close-fit pipes to prevent possible pipe collapse are termed as semi-structural liners and structural liners are those that act as a separate pipe.
Non-structural Pipe Lines
The renovation of non-structural pipe lines would involve the adding of new pipes to the already existing pipes and is mostly implemented if the original pipe structure is sound. Most pipe renovation specialists implement this type of renovation if there are no foreseeable increases in the demands in the future. As water quality might be affected, some would also apply some spray techniques such as cement mortar, epoxy resin or polyurethane to the interior pipe area. Semi Structural Pipe Lines
This renovation type is often considered when the original pipe is still intact but signs of leaks and other distress are seen in the pipe structure. The semi-structural pipes are then used as one continuous unit to cover the distressed area as well as serve as a bridge if the original pipes have gaps. These types would only work if the original pipe is still in good shape as there is the possibility that different areas in the pipe section might be reduced. Most pipe cleaning companies also use this method for easy cleaning of the pipe section as it is smaller than the host pipe. It can also be inserted as one continuous unit.
Structural Pipe Line
This pipe renovation project would serve as the last possible option and is only used if the original pipes can no longer support the whole piping system. Pipe contractors would check for any signs of corrosion on the original pipe before the old pipes are replaced. As the replacement pipe must be stronger than the original pipe, pipe contractors would have to check for the pipe’s internal burst strength to ensure that the pipes would withstand in case the host pipe burst.
Most cleaning techniques that pipe contractors would use involve placement of lining material or cleaning the piping system of corrosion and debris. For those companies who are interested in setting up or having their pipe system checked, look for fully licensed piping contractors as they can provide the latest methods and techniques in piping system maintenance.
For more information on semi-structural spray lining of water mains and other pipe renovation projects please visit http://www.wultd.co.uk.
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