The pipe is used in systems for drinking and household-drinking purposes, hot water supply, water low-temperature (up to 70 ° C) heating, systems of water heated floors and walls, soil heating, and also as process pipelines transporting liquids that are not aggressive to pipe materials. The pipes are connected using press fittings, which are also used for connecting metal-polymer pipes. In addition, crimp connectors can be used for cone and eurocone connections. Pipes can be used for 1, 2, 4, HV - operation classes in accordance with DSTU B V.2.7-143: 2007.