Polyethylene Pipes
Advantages and disadvantages of plastic pipes. Advantages of plastic pipes: – high resistance to corrosion and chemical resistance, durability (guaranteed service life – 25 years) – a slight probability of deposits on the inner surface of the pipe – a low roughness coefficient, equal to 0.01, on average, 20 times less than steel and about 40-50 times less than cast iron) – require less energy for pumping fluid (used for hot and cold water, because it uses a large flow rate of the transported medium) – in 5-7 times lighter than steel, which facilitates the assembly work, especially in cramped conditions (small movements of the installation does not require lifting mechanisms), and reduces the cost of shipping – low thermal conductivity material, reducing heat loss and reduces the formation of condensation on the outer surface of the pipes – no need to maintain and cathodic protection – a butt welding polyethylene pipe is cheaper, easier, takes less time, requires no additional consumables; opportunity repeated assembly and disassembly at low cost – high reliability of weld joints for the duration of operation of pipelines – maintainability, allows you to quickly eliminate the mechanical injury – a low probability of physical damage to the pipeline during the freezing of the liquid, as this pipe increases in diameter, and then, when thawing the liquid acquires former size – almost no danger of physical destruction of the pipeline from the water hammer due to the relatively low modulus of elasticity. The standard margin of tubes – 50-60% above the estimated operating pressure – an opportunity Delivery of long segments (bays) that reduce the time and cost of installation and laying of the pipeline (at 1 km of the pipeline 110 mm in diameter have only two joint) flexible tube allows the passage of the route turns pipeline without the use of molded parts – the possibility of merging into a single shell to four tubes, which allows to optimize the scheme of laying multiple networks (hot and cold water and heat), depending on the purpose and nature trails – the possibility of using polymers to repair (actually, for the restoration) of steel pipelines. .
Tags: materials