Category: Service Pipe Renovation Methods
Renewal of service or communications pipes takes two forms –
• Service Pipe Replacement – where the old pipe is 'renovated' by being completely replaced.
• Service Pipe Renovation – where the old pipe is utilised as the carrier for a new structurally sound material forming a 'new pipe'.
This can be achieved by using one of four forms of trenchless technology depending on the prevailing conditions – impact moling & pipe pulling for replacement and pipe lining & insertion for renovation.
Service pipes are typically the individual smaller pipes coming off the larger 'main' to provide a specific property with the relevant utility – usually gas or water. These may require replacement due to leakage or damage, the original pipe material effecting the quality of the carried product or a need to increase the amount of flow of the product to the supply point by increasing the size of pipe or pressure within it.
Service Pipeline Replacement:
|Impact Moling||Pipe Pulling|
|Replaces old pipe by boring a new hole between two 'pits' which is then used to pull in new pipe.||Extracts old pipe and pulls in a new one using same bore path between two pits.|
|Cost effective – no additional consumable items are required.||Can be used in confined spaces and is cost effective against open cut techniques.|
|Small kit – most utility service vans carry 'moles' with them.||Specialist team can complete numerous pulls in a day.|
|Ideal where there is no surrounding infrastructure.||Ideal where there is nearby infrastructure or 'risk' areas such as under a property.|
|Uses old pipe to spray or inflate an epoxy resin or plastic to form a structurally sound 'wall' as the new carrier.||EUses old pipe as a carrier for a new pipe pushed up the inside.|
|Low material cost.||Many insertions can be completed in a day by one team.|
|Low impact, 'key hole' operation from main to stop tap.||Low impact' 'key hole' operation from main to stop tap.|
|Ideal for small wall leaks where old pipe is in good condition.||Ideal where flow is not an issue and pressure can be increased.|
Last Updated on Thursday, 20 November 2014 11:32