Once in the old magazine I happened to read an article entitled “The World holds on pipes”. This statement has been fair for several hundred years. But earlier, metal pipes were used to supply gas, which quickly rusted, despite all the efforts to insulate them. Such pipes often gave leaks and needed frequent replacement. But now they were replaced by pipe from polyethylene.
Pipes from this material have many important advantages. They do not rust, therefore, do not need expensive and laborious insulation work. The service life of polyethylene pipes is much higher than the duration of the operation of the pipeline from iron pipes. Only the warranty lines of the gas pipeline gas pipeline service is fifty years old.
But the advantages of plastic pipes are not exhausted by this. They are much more flexible and plastic than metal. This quality allows them to lay them in complex and seismically active soils.
Plastic pipes are connected by welding. Welding seams on such pipes are much stronger than the seams obtained by electric welding of the metal. And the cost of transporting polyethylene pipes is much lower. Industry is produced pipes, the diameter of which can reach twenty -five centimeters.