The heat pipe of the city of Barnaul was the first to respond to the President's call "Russia needs a breakthrough"!
Anecdote from the site: anekdot.ru
"Roll on your mustache", before laying water pipes, you must know which pipe, what it is intended for. Especially if the manufacturer has marked the pipes with different colors. And do not blindly trust the installers, who, in the pursuit of savings, can slip the wrong thing.
Glad to see you on the Timofey Mikhailov channel. The information from the plumber, outlined below, will be not only interesting but also useful, I am starting to conduct an educational program:
Now we will talk about a black HDPE pipe, which is laid for cold water supply outside buildings in trenches. Why exactly it is used for these purposes, we considered earlier on the channel.
Pipes made from Ppolyethylene Hfrom whom DThe pressures are not always the same. Therefore, it is necessary to understand that in production, pipes are separated, they are certified for certain environments and functionality.
What pipes are available?
Pipe without strip. For technical needs, namely for laying cables underground, an HDPE pipe without strips is often used. It serves to protect the wiring from external adverse influences. Sometimes it is used for a water supply, but you need to understand that the thickness of its walls is less than that of a water supply. Often, secondary raw materials are used for its manufacture. Therefore, it may have an unpleasant odor. What can affect the quality of the water.
Pipe with a green stripe. If you suddenly meet her, then know that it is intended for watering. It is possible that secondary raw materials are used for its manufacture. Therefore, it should not be used to deliver drinking water.
Blue stripe trumpet Used for laying water supply systems. Withstands pressure up to 16 atm. It is prohibited to use secondary raw materials (waste from landfills) in the pipe material GOST 18599-2001. This pipe tolerates defrosting better than non-GOST pipes.
A pipe with a yellow stripe. Designed for transportation of hydrocarbons in a gaseous state. Ie gas. These pipes are very widely used in this field. In contrast to tap water, they have better strength characteristics. GOST R 50838-2009
Now you know what to use for each type of pipe made of HDPE material. Keep in mind The gas pipe can be used for both water and cables. But on the contrary, in no case do not!