Tube installation by hands: description, step by step instruction and recommendations

When the old water pipe rotates in the apartment, fistulas and sweat appear on the pipes, then it becomes necessary to mount a new one. You can do it yourself without obtaining permits and without making out papers. It is necessary to shut off the water supply in the risers, and then do the work, after which you will be able to use the new system for more than a decade.

Procedure for replacing the pipeline

If you started the installation of pipes, then you need to be guided by a certain technology, which in the first stage provides for the choice of material, as well as schemes for the distribution of cold and hot water. The next step will be the development of the water supply scheme, as well as the calculation of the diameter of the pipes for the material. The master prepares the mounting tool, acquires the material, and also dismantles the old pipeline and sanitary equipment.

For reference

After the new pipes are installed, it is possible to mount and connect plumbing. At the final stage, a boiler is installed and connected, if such is provided by the circuit.

Selection of material for pipes

Installation of pipes can be carried out after the purchase of products. However, at the first stage it is necessary to select the material. Copper may act as a copper, but some experts do not recommend using it, because, when in contact with water, this material can form copper oxide.

Most often recently used metal plastic, such pipes are quite expensive, but you can connect them yourself, without having a professional experience. Metal-plastic water pipes are connected to threaded units with fittings or gaskets. Such products can be bent, and the hydrodynamic resistance and pressure loss will be very small. In order to introduce such a pipe into the fitting, you need a press pliers, a pipe cutter and a set of reamers. Among other things, the life of gaskets in fittings is limited. It is required to know if you are going to hide the pipes.

Traditional solution

The installation of pipes can be carried out on the basis of plastic products, which today are already generally accepted. You can use polybutylene with good bending ability, polyethylene, which is cheap but not able to withstand temperatures above 60 ° C, as well as polyvinyl chloride, which is well known for its chemical resistance, low cost and heat resistance up to 80 ° C.

Pipeline installation: layout drawing

Installation of pipes can be carried out by one of two schemes of draw-off, it can be parallel and sequential. In the latter case, the points of analysis should be connected to the common pipe by means of tees. This scheme is considered the most economical, but with an impressive number of points of analysis or low pressure, it is unsuitable, since it greatly reduces the pressure. In this case, it is possible to use a parallel circuit in which the valves regulate the pressure by points.

Peculiarities of installation of the pipeline system

If you decide to install pipes yourself, then at the first stage you need to install arcs, which are plastic slats for mixers. They should be fixed to the wall with dowels. When fixing, it is necessary to take into account the thickness of the finish, for example, tiles or plaster.

The next step is to assemble the sections of the pipeline. The most accessible technology is the assembly on the table and the further installation of pipes. However, in this case, there may be a question about how to pipe through walls. If you use metal-plastic, there will be no special problems, since it is assembled with detachable fittings, whereas for brazed pipes one of the following methods can be used.

It is recommended to use adapters and metal-plastic inserts. For an apartment this method will be sufficiently reliable, and in the corners above the pipes it is necessary to make removable hatches for repair of threaded connections and revision. However, it is possible to install the pipeline system in place, using a compact soldering iron for this. It costs more, and you need to work with it in cotton gloves, so as not to get burned.

After it is possible to cut pipes, they can not be sawn, which is especially true for metal plastic. Cut it with a pipe cutter, for a metal-plastic and plastic such a tool has different characteristics. The next step is soldering, one of them takes 15 mm of pipe. Between two fittings there can be one meter, for this it is necessary to cut off 1030 mm. If between them 0.6 m, then cut the workpiece into 630 mm. When the installation of water pipes, then the next stage they need to bend, the minimum permissible radius is 5 outer diameters. Do not use sand for this, which supposedly helps to bend the products to any angle. At the same time, the internal coating deteriorates, the residual voltage exceeds the permissible values.

After the water supply system has been put into operation, it is necessary to install a boiler, if one is present in your apartment. Pipes under it must be made in advance, but the valves open immediately after installing the pipe, in addition the nozzles are muffled.

Stacking of steel pipes

Installation of steel pipes that have a galvanized coating can not be carried out by welding, but threaded connections are used quite often. This is due to the fact that under significant thermal loads steel will burn out. The use of special modes of welding and filler materials will solve the problem only partially.

When installing steel pipes for water supply and heating, the elements are connected by gas welding. This method allows you to achieve better connection of elements. In the pipe for this, a technological hole is cut, and part of the seam is superimposed from the inner surface. At the first stage, it is necessary to mark out and cut the material in the places where it is necessary to perform the docking. When grinding the edge, it is recommended to use an emery wheel. Next, the edges are prepared, this step is to give them a geometric shape that would facilitate an ideal docking.

If the thickness of the pipe is more than 3 mm, then for arc welding the bevel angle should be greater than 45 ° C. When gas welding, the edges should be melted by the flame at the place where the connection should be. In order to eliminate gaps, the molten metal should be applied between the ends of the pipes, filling them with space. After the filler half is attached.

Piping of sewage pipes

Installation of sewage pipes provides for a certain slope, which is necessary for the natural drainage of sewage. If this parameter varies from 0.02 to 0.03 °, then the optimum rate of movement of impurities will be approximately equal to 1 m / s. In other words, for each linear meter in a horizontally located pipe it is necessary to arrange a slope towards the drain 3 cm.

Installation of sewer pipes, whose diameter does not exceed 5 cm, should be laid with a slope of 30 mm per running meter. If pipes with a more impressive working diameter are used, the slope can be reduced to 20 mm per running meter.