All pipes are divided into several types that depend on the area in which these products are used. So, pipes are heating, gas pipeline, water, pressure, sewer, pipes for conducting a telephone cable and using electric networks. In our article, we talk about steel pipes that have been very popular in recent decades. The VGP GOST 3262 pipe is in great demand, which can be bought at almost any company that sells steel pipes.
Steel pipes can be interconnected by a welded or integral method. When using a welded method, a special welding machine is used, however, with unskilled work at the site of the adhesion and at the joints, flaws often occur. In this regard, it is much safer to buy a whole pipe, which is covered with zinc spraying. Such pipes are called galvanized. They do not need priming and paint covering. However, it is best to paint or primed the connection place, as well as it is advisable to take such actions with the cost of applying the thread. Steel pipes are connected by fittings, because compounds can be carried out using cast -iron elements, which is prohibited today. Cast iron fittings, in principle, are reliable, but it is best to use them during the assembly of cast iron products.
To avoid errors, when choosing steel pipes, drip sulfuric acid on them. After a few minutes, this place needs to be washed, and if a spot appears in its place, then by its color you can determine whether it is really steel. So, if the pipes are made of steel, then the spot should have a black color, and if it is not steel, then it will turn out to be gray, which suggests that the pipe was used not steel, but iron. Under a stream of water, such a spot is easily washed off.
Note that the metal of great thickness is good for the effects of corrosion, however, during installation work, such a metal is almost not amenable to deformations. If you responsibly approach the choice of steel pipes, they will serve you for many years. To buy steel pipes profitably, contact the manufacturer directly.
