Really Steel

Steel pipes. Really Steel tubes are about 20 years, but that's where, in what circumstances are? These pipes are operated as a public multi-storey building highways, underground, in low external thermal insulation at temperatures coolant, which is approaching a boil, and a pressure of 6 atmospheres, and water hammer, reaching up to 12-15 atmospheres. It is in such hellish conditions are not even 20 years, much longer are - in a mode in which any plastic and metal pipes 15 minutes would not have stood for! And how much steel pipes are used in conventional high-rise city building, being plastered into the stone walls or in the clear? In my relatively new home - for 25 years, and in Stalinist high-rise building built in 1940 at number 12 on Berezhkovskaya, near the Kiev railway station in Moscow, the replacement tubes occurred only in 2002. Replacement was done not because of accidents or complaints about the heating and replacement was made routine. That's just after the change and the accident and complaints of heating, but, by the way, that's another story. Moreover, the welders were told that the tube home safely to another 20 years stretched without replacement, but the plan is plan, and there is nothing to be done ...

At a time when the pressure comes up to 6-7 atmospheres and the water temperature reaches 90 degrees, and ... hydroblows plastic pipes do not apply. Five years ago, among the guests for dinner (at a birthday party) was affected by this issue. Suddenly he heard the word vaguely PVC well-respected banker, jumping up from his chair and gesturing with bulging eyes depict a nightmarish story that had the misfortune of not going into details technical issues, to give the nod to the connection of additional radiators metal pipes. Depict how the night was awakened by a jet of boiling water, whipped out of place pipe rupture straight to bed, about what it the ultimate adventure - break the pipeline, from under the terrible pressure of gushing at you, sleepy, hot water.