Pipeline insulation is a very important component in any engineering system. The most popular in everyday life are diameters of insulating cylinders from 12 mm to 32 mm. For insulation of cold pipes, the cheapest foamed polyethylene is suitable, and for hot it is better to use rubber materials or mineral wool.
Since the temperature of polyethylene is up to 70 degrees Celsius, and when this threshold is exceeded, it melts and changes the geometry, which is unacceptable for insulation of pipes. So, he will be able to protect the cold pipe from condensate, but to maintain heat in hot pipes with its use will not work.
It is also important to say about the insulation of heating pipes – competitors in rubber materials are practically absent. In the ratio of the price and quality of isolation, such materials are better than polyethylene materials and mineral wool. An additional advantage is that insulation with rubber materials will look neat externally and sometimes the subsequent finish is not even required.
It is also necessary to pay attention to what thickness at the wall of such cylinders – it should be in the range of 3 – 20 mm, and the greater the thickness it will be, the higher the level of insulation of the pipe can be obtained and less heat loss. If there is a large length of the pipes of the heating system, then losses can reach up to 50 percent of the initial temperature of the coolant when leaving the boiler.