Replacement of heating pipes: the replacement of the heating iron pipes on the plastic during overhaul

Every resident of our country knows what to do without the heating system in a house or apartment can not. Therefore it is necessary to closely monitor the effective operation of the whole system. Unfortunately, over time the quality of supplied heat and the time comes falls replacing old heating pipes.

The reasons for the replacement of the heating system

In apartment, private houses of old construction mounted from cast iron or steel radiators. This material is prone to corrosion, dirt buildup on the walls, which leads to the appearance of blockages and leakages. But even installed in new houses, modern radiators can bring. There are a number of possible reasons why the heating pipes may be damaged and need to replace them.

1. Circuit mounted correctly. There are a number of rules, the heating assembly technologies in the apartment, the order of the basic elements (valves, pumps, ekspanzomata). Trying to reduce the cost of housing, developers save on installation with all necessary hardware. For example, if the repairmen did not include shut-off valves when connecting the radiator, then remove it would be impossible for repair or cleaning. You need to turn off the entire water supply to the system. It also happens that some unscrupulous masters, to make changes, without thinking about the consequences, which then have to resort to the complete replacement of the riser pipe and heating
2. Low temperature. This is a fairly common reason for redoing Sway construction. The lack of heat it is possible to fix by simply replacing the battery, or by increasing the diameter of the pipe.
3. Improperly designed wiring system. Circuit depends on how it will circulate the water in the radiator, whether the feed direction and return point. If the scheme is chosen incorrectly, you will have to completely redo all the radiators system.
4. High breathability. For high-temperature diffusion structures - a big problem. The material from which the pipe is made, air can pass. The presence of air accumulation in the hydraulic system may have a serious problem and lead to cavitation process, ie the emergence of noise and water hammer. According to the established specifications permitted to use materials having protivodiffuznoe coating whose penetration ratio is not greater than 100 mg / m² per day.

Yet experts have identified two main problems that require replacement of heating pipes:

• Severe wear pipe. This is especially important in older homes where the predominant metal structures. For a long life, they acquire deposits and cease to function effectively.
• Major overhaul. If you have a private house, and you have decided to carry out redevelopment, change the position of the boiler or boiler. If it's an apartment building, then performed a planned overhaul of the riser pipe in the basement.

But whatever the reason, it requires a lot of effort and financial resources to create high-quality heating pipe. For this we first selected material of which the structure is made.

Which to choose the pipe for heating?

In most cases, in blocks of flats installed central heating. In order to decide which material is best suited to be understood that the water temperature in the system is 950 degrees. The material must withstand the temperature and pressure of 10-12 atmospheres. The most popular are:

• metal and plastic;
• galvanized;
• polypropylene;
• Rehau pipeline.

Each of them has its advantages and disadvantages.

Modern pipe from plastic are a single, elongated circular cross section design. They are made of several layers: the inner layer has a metal base, external - plastic.

The top layer is made of crosslinked polyethylene PEX, which has a large number of crosslinks. Such material is capable of withstanding high temperatures and is not deformed by heating. Smooth inner layer protects the structure from adhering dirt and PEX layers prevent the release of the galvanic couple made of aluminum. In addition, the polymers do not provide collected condensate.

Metal-plastic water pipe has a number of advantages:

• Resistance to corrosive processes, even with aggressive substances;
• Not deposited on the walls of salt, silt, sand and other adhesion;
• Plastic. This quality is especially important when creating a complex design, where a round the obstacles and create twists;
• Ease. To work with the material data does not require a lot of effort;
• Low resilience coefficient allows to maintain a stable pressure while driving fluid;
• Durability. The service life with good care over 50 years;
• Environmentally friendly. The material does not give off toxic and noxious substances, however does not change the composition of water;
• Non-conductive;
• Have low thermal conductivity and high sound insulation.

By significant advantages include the ease of installation of the heating structure. For assembly does not require welding equipment and special tools. The entire structure is mounted with fittings that can be purchased in either the sanitary shop. Metal-compatible with other materials, and in the case of an emergency repair, you can use any means.

It has long metal tubes are used when creating a heating system. Despite the emergence of new advanced materials, their popularity is not reduced due to its reliability and durability. Galvanized metal structures capable of withstanding high operating loads, pressure and temperature over + 100 ° C.

The performance of the conduit depends on the characteristics of steel products production. They can be made of seamless or welded manner. In the first case the process of manufacture requires a complicated technical equipment in the other - are welded from a single sheet of galvanized metal.

The advantages of this product include:

• The high thermal conductivity. Metal is able to heat up and release heat into the air space of the room, carrying out, thus, the role of heaters.
• A low gas diffusion coefficient. The value of this criterion close to absolute. Make quality a closed circuit without such indicators is impossible.
• Strength. This quality makes the most reliable metal conduit. They are best used when the content is provided by high pressure liquid.
• The low price makes the products available.

Of course, there are some disadvantages. These include:

• Susceptibility to corrosion. Metal poorly resist aggressive substances, but thanks to galvanizing, this disadvantage can be mitigated.
• Rigidity. required skills and figured elements that would be bad for the reliability of the heating system to create complex design configurations.
• Electrical conductivity. The property of metal conduct current, prevents the use of this material in the formation of a system with an electric boiler.
• A lot of weight. For the installation of the heating design takes a lot of physical effort and help from outside.

Heating system of polypropylene pipes effectively serve the long term. Polypropylene - a material made using the petroleum refining, catalysts are connected. In favor of the choice of this material speak the following positive qualities:

• Resistance to high pressure;
• High quality thermal insulation;
• Acceptable price;
• Prostate mounting structures of any complexity;
• The material is light, allowing it to be easily moved to the desired location;
• It does not conduct current pulses, which minimizes the formation of deposits inside the pipe;
• Durability. When used properly, they can last for more than 50 years.

But they exist certain shortcomings, which are also necessary to take into account when choosing the material:

• For installation need special equipment and skills;
• Repair fraught with some difficulties in the selection of fittings;
• Vulnerable at a heating temperature of over 100 degrees.

Despite the shortcomings of polypropylene pipes are most in demand for the creation of the heating system.

Rehau polyethylene products in our country is not inferior to the popularity of other materials. To create a pipeline from Rehau crosslinked pipe is not required special tools. mount technology is simplified. For connecting structural elements, a system installation of couplers sleeves, thereby increasing the reliability of the spikes in the joints. Due to the simplicity of the connection, almost anyone can make the heating system in your home yourself.

You can also add a number of positive qualities of this material:

• The reliability of heating systems under all operating loads;
• Ease of use. Light weight and flexibility make it easy to create the desired design without additional help;
• A lot of fittings and fasteners make it possible to make the most complex conceptual heating projects.

In fact, products Rehau, a constructor of many parts, resulting in a reliable heat supply system in the house with his hands.

After selection of the material is time for a new direct heating system. But before that you want to remove the old pipes, risers and radiators.

Dismantling of old pipes and risers

Emergency replacement of the heating risers - the most unpleasant and difficult case. Under the legislation must repair the management company to carry out, but if it's your own desire, require compliance with certain rules.

If you are going to change the riser and the entire system inside the apartment. You will need permission from the neighbors, and you have to warn them of the impending public utilities and repairs. In the case where the waste valve design changes from indoors, permission is required. Removing the old system is carried out in the following sequence:

• Of all the pipes, batteries down liquid and shut off the flow of water;
• If the pipe is made of metal, it will require the Bulgarian, which cut off the old product. When changing risers on all floors, it should be cut so that the design is not cracked, and it was convenient to take out;
• Older radiators are disconnected from the pipeline via wrenches.

These actions will help remove unnecessary items and allow to break to install a new system.

Creating a new heating

Installation of a new structure for the heat in the room is carried out by several schemes: one-pipe and two-pipe layout. The latter option is considered to be more efficient and reliable.

If work is carried out in a private house, you need to pre-install the boiler. Connecting thermal, gas equipment may only be carried out specialist. After the boiler equipment necessary to carry out the layout of the future of the heating structure as a whole. Further work is being done according to the following scheme:

• Pipe connection wire with intermediate struts to radiators;
• Installing bimetal radiators. Before mounting the battery on the wall you can stick a sheet of foil to reduce heat loss. It is also possible to create a battery visor that protects the sill from heat and allow the hot air to be sent directly into the room;
• For connecting tubes made of plastic pipe fittings are used, which should previously be sealed;
• Before broaching pipes, wrap the end of the film, so that the dirt from getting inside;
• Then the system is filled with water and passed through all elements at maximum pressure;
• In new houses began to carry water to replace the antifreeze in the heating system. Fluid is stable to low temperatures. It does not freeze even at -50 degrees.

Assembled structure must be checked. To do this, use a special device - a pressman. It creates a high pressure in the system to ensure the reliability and integrity of joints and pipes. If during the inspection sensor readings have not changed, then the test was successful and will not leak.

Using the information provided, you will be able to replace and make a new high-quality heating system.