Advantages The main advantages of plastic pipes plastic pipe are: durability; low weight at a sufficiently high strength; high corrosion resistance; low thermal conductivity; smooth surface and no fouling of the walls; High throughput; convenience and ease of assembly / disassembly; aesthetic qualities. The warranty period for plastic pipe systems and domestic hot water heating – 30 years for the cold Water – 50 years. But under certain conditions, polymer tube may be much longer. Polymer pipes for water resistant (not rust) and almost all corrosive media, the impact of fungi and bacteria. Polymer tubes are non-toxic and do not affect the taste of water, on the inner walls are formed of deposits in the form of scaling, corrosion products, lime. Thanks to the smooth inner surface in such systems significantly (by 30% Compared with the metal) decreases the hydraulic resistance and increases capacity, which remains unchanged throughout the operation.
Pipes made of polymers are very flexible and able to stretch without losing the qualities of up to 7%, while metal pipes are destroyed. Polymer pipes have excellent dielectric properties, while laying in the ground they do not need to be protected from stray currents. Polymer pipes are capable of withstanding the operating pressure of 10 atmospheres, and in short term tests – and all 40 atmospheres. Disadvantages The main disadvantages of plastic pipes plastic pipe are as follows: low maximum Operating temperature; high coefficient of thermal expansion; dependence of the strength of the pipe from the pressure and in particular on the temperature of the transported fluid; rapid aging under direct sunlight; high diffusion coefficient of oxygen through the pipe wall.