The system of flexible pipes, designed primarily for use in the systems of drinking water supply at negative ambient temperatures, for example, for the Far North, when laying on the surface of the soil. This system is designed both for use in small and medium-sized water supply networks for local and district use, and in industry and agriculture for drinking water supply, wastewater disposal, in refrigeration units, etc. Can also be used for pipelines transporting other liquids to which polyethylene is chemically resistant.