Putkittamalla

Putkittamalla is a Finnish term that generally refers to the process of lining existing pipes with a new pipe. This technique is commonly used for repairing or rehabilitating underground pipelines that have deteriorated due to age, corrosion, or damage. Instead of excavating the old pipe and replacing it, a new, often flexible, pipe is inserted into the old one.

The process typically involves several steps. First, the section of pipe to be rehabilitated is cleaned to remove any debris or obstructions. Then, the new lining material, which can be made of various plastics like polyethylene or epoxy-coated fiberglass, is pulled or pushed into the old pipe. In some methods, the new liner is inflated or cured in place to create a seamless, structural pipe within the old one.

Putkittamalla offers several advantages over traditional pipe replacement. It is often less disruptive to the surrounding environment and infrastructure, as it minimizes or eliminates the need for excavation. This can lead to significant cost savings and reduced project timelines. The new lining also provides a smooth, corrosion-resistant surface, which can improve flow capacity and extend the lifespan of the pipeline. This rehabilitation method is widely employed for water mains, sewer lines, and industrial pipelines.