Plastic pipes are less thermal conductive, they preserve heat better, bringing it to cast -iron and (or) iron radiators. Plastic pipes are more durable than metal, the service life of plastic pipes may exceed 50 years, although there is no confirmed data yet, metal pipes, even with their most careful use, will not last and half of this period of this period. Plastic pipes are easily bending, but over time hard and become very fragile. Plastic pipes also have a temperature limit, although a heat -resistant plastic is based on them, they are subject to melting, especially low -quality pipes. Plastic pipes are environmentally safer than metal ones, they do not emit harmful compounding water due to a special inner layer resistant to destruction and chemical decomposition.
