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Pipeline Cleaning

The Process
Firstly, Proline will survey the area to be rehabilitated and consult the drawings if they are available. Following this, we will confer with you the "client" and decide were the best possible sites are for access pits.

When the access pits have been excavated and a short pipe nipple has been removed or a manhole access point has been cut into the top of the pipe we begin the process of removing the debris from the interior of the pipe. There are four ways of managing this process and pipe size is a critical factor in deciding which method is the most appropriate.

This method is most effective on pipe size ranging from 3”(75mm)-12”(300mm). The Rackfeed consists of a Hydraulic drive, which rotates and moves backwards and forwards. The rotation is to rotate the special interlocking steel rods, which are connected to the warhead, and flails; this process cleans the interior of the pipe. The backward and forward motions are to force the warhead up or down the pipe.

Drag Scraping.
At each access pit at the ends of the run to be cleaned we set up a winch. Once the steel cable is through the pipe scrapers are attached and these repeatedly pull backwards and forwards until the debris is completely removed from the pipe wall, we then attach a series of squeegee’s these are also pulled backwards and forwards until all debris is removed from the interior of the pipe.

Hydraulic Cleaning.
With this system we use a specially adapted scraper. We remove a pipe nipple and introduce the cleaner into the pipe then we replace the pipe nipple. At the far end of the run, this can be as much as 15 Kilometers away we have a catchment nipple, once this is in place we slowly increase the water pressure within the main, as the pressure increases the scraper begins to move, thus removing the debris from the pipe wall, the passing water pushes the debris forward. Once the cleaner gets to the end of the run the scraper is retained within the catchment nipple.

Mechanical Cleaning.
This is a self-propelled machine with rotating arms at the front. At the ends of the arms special are aggressive blades, these are set under tension against the pipe wall, as the arms rotate the blades scrape the pipe wall and remove the debris. Once the debris is on the pipe floor we then apply the squeegee process to remove the debris from the interior of the pipe.

Small Diameter Scraper


/// If you have any questions regarding Cement Lining (Cement Mortar Pipe Lining) or any of our other services, please don’t hesitate to get in touch. Tel: +1 217 6520277or Email:
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