For each case needed are special polymer
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Talk of the principal advantages and some disadvantages of plastic pipes in comparison with the metal already stuffed mouth. And we will not be the exception and we emphasize once again the pros and cons of plastic pipes in comparison to our beloved steel (copper pipes for U.S yet to be exotic).
Pluses – low weight at a sufficiently high strength, high corrosion resistance, smooth surface and, accordingly, high capacity, low thermal conductivity, the absence of fouling of the walls, easy installation of networks, aesthetic quality.
Cons – dependence of the strength of the pipe from the pressure and in particular on the temperature of the transported fluid, a low maximum operating temperature (not above 100 ° C), high coefficient of thermal expansion (approximately 10 times higher than that of steel), a rapidly aging under direct sunlight , the high diffusion coefficient of oxygen through the pipe wall.
In assessing the advantages and disadvantages of various plastic pipes should be considered:
* For the production of pipes used by a number of polymers with different properties;
* Modern production technology of polymer pipes using different methods, leveling deficiencies of polymers;
* Optimum results from the use of plastic pipes can be obtained by properly selecting the type of pipe for a given operating conditions.
The seriousness of the role of polymeric pipes in the overall balance of pipes in Europe and the USA we have shown in the previous issue of the journal Stroyprofil. In U.S polymer pipes while the absolute amount of cover is not the lead, but the prospects of their application is already reflected in the regulations. Thus, in SNIP 2.04.01-85 “Domestic water supply and sewerage Buildings amended ї 2 in Section 10.1, is recommended for internal networks of hot and cold water pipes and polymer fittings are made of polyethylene, polypropylene, polyvinyl chloride, polybutylene, and metal-polymer composites tube.
Tags: plastic pipe, Polymer
