How to replace iron pipes with plastic ones in an apartment. How to replace pipes with plastic or polypropylene

If in your apartment there are 3 devices for connection, as in the diagram, then the cost of work will be 4900 rubles.

The cost of the material: polypropylene pipes, couplings, adapters, fasteners 2 ball valves - 2000 rubles.

Total: 6,900 rubles.

The cost of replacing pipes for 3 devices is 4900 rubles.

The cost of replacing pipes 4 devices price - 6400 rubles.

If in your apartment there are 4 devices for connection, as in the diagram, then the cost of work will be 6400 rubles.

The cost of the material: polypropylene pipes, couplings, adapters, fasteners 2 ball valves - 2500 rubles.

Total: 8,900 rubles.

The cost of replacing pipes, 5 devices price - 8500 rubles.

If your apartment has 5 devices for connection, as in the diagram, then the cost of work will be 8500 rubles.

The cost of the material: polypropylene pipes, couplings, adapters, fasteners 2 ball valves - 3000 rubles.

Total: 11,500 rubles.

Replacing pipes in the bathroom and toilet with polypropylene prices:

Replace the pipes in the apartment (bath, toilet and kitchen) with polypropylene pipes at a fixed price. The cost depends on the number of connected plumbing fixtures in your apartment. Prices for replacing pipes are indicated without wall gating with a serial connection scheme.

one plumbing fixture is, for example, a toilet bowl,
if in your case, when replacing pipes, you need to connect: a toilet bowl, a bathtub and a sink - then these are 3 connection devices.

The purchase and delivery of materials is free of charge.

The customer can purchase the material himself.

Installation of water meters - free of charge.

Water meters are not included in the cost of materials.

We use only high quality polypropylene pipes.
Replacement of old water pipes in the apartment on modern polypropylene.

Mounting on the walls is carried out using special holders - latches that fix both pipes (hot and cold) side by side. Fasteners must be carried out every 50 cm to avoid deflection of pipes under their own weight.

Also, when installing polypropylene pipes, it is necessary to take into account a sufficiently large thermal expansion of plastic, therefore, when embedded in walls, it is recommended to use the "pipe-in-pipe" or "pipe-in-plastic sleeve" system so that there is a small gap that allows the pipe to expand in the wall under the influence temperature fluctuations.

The pipes are made from polymer materials, they are not subject to any kind of corrosion,
neither electrical nor chemical, respectively, do not overgrow with deposits from the inside, do not conduct stray currents.

Polypropylene pipes have long term service for about 50 years. The low thermal conductivity of the pipe material makes it possible not to use thermal insulation. To connect to metal communications, plastic fittings with built-in threads are used. There are also plastic taps (metal inside, plastic outside).

In houses built in the 60-70s, steel pipes are installed, the service life of which is 40-50 years. Most are already subject to replacement due to the expiration of the operational period.

• Resistance to corrosion, aggressive environments;
• High strength;
• Environmental friendliness;
• Smooth inner surface. This feature prevents the accumulation of dirt and grease deposits, which increases the service life without the need for regular maintenance.

Replacement of water pipes in apartment buildings produced by public utilities, as a planned procedure. But most of the apartments have been privatized, sections of the pipeline up to the shut-off valve and risers are undergoing planned reconstruction. Inside the apartment, the wiring changes at the expense of the owner. Urgent replacement is required in the following cases:

• When the pipeline is worn out;
• When a leak occurs;
• With a critical pressure drop.

Water and sewer pipes are installed inside the apartments after the dismantling of the old pipeline. The process is time-consuming, requiring professionalism, accuracy and time-consuming. When doing it yourself, the following difficulties are encountered:

• When replacing water supply pipes, experience and the ability to use a special tool for installing systems from various materials is required;
• replacement sewer pipes should be carried out carefully, since it is almost impossible to disconnect the connection to the riser, minted with sulfur, without damaging the riser itself;
• Therefore, if you are not confident in your abilities, it is better not to risk it - experienced plumbers will perform the work quickly and safely.

Sewerage installation - connection of individual sections of the pipeline with a seal in the form rubber gaskets. Bell liner drain pipes, connection of wash basins, toilet bowls, bathtubs;

Plumbing installation - open or hidden laying of pipelines using a press tool, a soldering iron, scissors and a wall chaser.

Speaking about the replacement of water pipes, one cannot fail to note the need to install a water consumption meter. Installation of a water meter is carried out immediately after the filter and reducer, which stabilizes the pressure inside the pipeline.

If urgent replacement of sewer or water pipes is required, contact the SantekhService company. Our experts will carry out repairs promptly and provide a guarantee!

Replacing old steel water pipes is often hesitant to do, believing that this repair will be difficult, and inviting plumbers will greatly ease the wallet. Indeed, hiring professionals is not always cheap. But water pipes are not difficult to replace on your own. No extra spending. And the replacement process itself may well then seem quite simple.

If you are doing a major overhaul in an apartment or house, then replace the old pipeline at the same time. Old steel water pipes can leak at any time. Then you will have to repair and change the pipeline in the room, which has already been put in order.

What to change old pipes for?

Pipes can be selected from the following materials:
- copper;
- steel;
- metal-plastic;
- polypropylene.

More about polypropylene pipes

In stores, you can pick up pipelines made of polypropylene for cold and hot water. They differ in wall thickness and the presence of reinforcement.

Please note that PN-20 pipes can be used if the water temperature is up to 60 degrees. If boiling water is possible, then you need reinforced pipes PN-25.

For pipes, there are a variety of fittings and fasteners with which you can assemble a pipeline of any complexity.

You can buy a soldering iron for mounting the pipeline, it is not expensive. But, later it will turn out to be unnecessary in the economy, because repairs polypropylene pipeline is unlikely to be needed. Now you can find construction offices and sellers who rent such soldering irons. And you can install a simple household plumbing in a day. Therefore, renting a tool in this case is the best option.

Selection of pipes by diameter

The choice of pipe diameter is a very complex and controversial issue. And for a decision, it is better to use experience than to try to independently select according to tables or using hydraulic calculation.

It is necessary to choose the diameter of the pipes so that the pipeline does not create too much hydraulic resistance, which would noticeably affect the amount of water supplied.

The resistance of the pipeline to the movement of water will depend on its length, the number of turns and branches, the amount of water supplied, the material (roughness). The selection of the diameter is also influenced by the pressure in the system, the smaller it is, the larger the diameter of the pipes is needed.

When replacing short pipelines in conventional small apartments more often, polypropylene pipes with an outer diameter of only 20 mm are used, without any complex calculations and conclusions. Under the same diameter, the connection of most household plumbing fixtures is calculated. This simplifies installation and circuitry. In addition, the main contribution to the limitation bandwidth they bring in not pipes, but bottlenecks in mixers, taps ...

Please note that "hot" pipes will have a smaller internal diameter due to the increase in wall thickness. At different manufacturers differently.

You can also take into account the following.

Diameter metal pipes often defined in inches:
3/8 inch - 10 mm.
1/2 inch - 13 mm.
3/4" - 20mm
1 inch - 25 mm
1.5 inches - 38 mm, etc.
In general, one inch is equal to 25.4 millimeters.

And polypropylene and metal-plastic are mainly characterized by the outer diameter. But then you need to take into account that 20 mm polypropylene and 16 mm metal-plastic, given the wall thickness, and 1/2 inch metal are almost the same in terms of throughput.

For polypropylene short pipelines (up to 5 meters), these rules are used. By analogy, you can pick up pipes from other materials.

• To connect one consumer (faucet, plumbing fixture), pipes with a diameter (external) of 20 mm are suitable;
• Long risers, main pipelines, collectors are usually made from a pipe - 25 mm.
• Long conduits to the house are made more often from a 32 mm pipe.

It can also be taken into account that a 20 mm pipe passes up to 20 liters of water per minute without much increase in hydraulic resistance if its length does not exceed 10 meters. Pipe 25 mm - 30 l / min, 32 mm - 50 l / min, 38 mm - 75 l / min (length less than 10 meters). A typical faucet at standard pressure consumes 5 to 7 liters of water per minute. For calculations, 4 simultaneously operating consumers are accepted.

Taps, mixers

Ball valves are now used to shut off individual pipelines. They are comfortable and durable. Cranes can be in a metal or plastic case.

Metal faucet on threaded connection can be dismantled, but two American women are required to insert it into a plastic pipeline.

Plastic taps are soldered on a par with other fittings.

If the crane is used frequently, it is preferable to install ball valve V metal case with threaded connection (coupling valve)
If the tap is intended only for emergency shutdown of the branch, then it is better to install a soldered one in a plastic case.

Single-lever mixers have won the greatest popularity. Water flow control takes place in a ceramic cartridge. Such mixers are very reliable, and their repair is simple, and basically consists in replacing the cartridge with a new one. Cartridge wear directly depends on the presence of abrasive particles in the water.

Therefore, for the reliable operation of all plumbing, a cleaning filter must be located on the inlet pipeline. It must be provided and installed.

How to do what to pay attention to

As you can see, assembly plastic pipeline very simple, and replacing old pipes with new ones is not so expensive. As a result of the repair, we obtain normal water consumption, reliability, aesthetics.

In new buildings, the installation of water supply, sewerage and heating systems is carried out using modern materials. In houses old building replacement of pipes in an apartment is a vital necessity, as the wear and tear of materials has surpassed all imaginable and unimaginable norms. Most residents apartment buildings there is no need to count on anyone's help in this matter. After all, the replacement of water pipes in an apartment after privatization should be carried out by homeowners at their expense.

Previously, only steel pipes were used to provide water supply, which corrode over time. Dirt and rust accumulate on the rough surface of their inner walls, which leads to a narrowing inner diameter and weakening the pressure of the incoming cold water. Hardly anyone wants to put up with a situation where water flows from a tap in a thin stream. So, it's time to replace the old pipes throughout the apartment, from the bathroom to the kitchen itself.

Types of water pipes

Installation of a water supply system in an apartment or country house can be done using:

• polypropylene pipes;
• copper pipes;
• steel pipes;
• metal-plastic pipes.

When choosing, it should be borne in mind that replacing pipes with polypropylene requires the use of special equipment, as well as knowledge and practical skills in soldering them. The smooth inner surface of modern plastic pipes does not contribute to the adhesion of dirt and the accumulation of silt deposits on the walls, which affects the quality of the water supply, which remains throughout the entire service life of the pipe. high level. Note that such pipes can serve up to 50 years. In addition, polypropylene does not conduct electricity. Considering all the advantages, one can understand why replacing pipes with plastic counterparts is beneficial. in great demand at the population. At the same time, the service life of the pipes declared by the manufacturer can be maintained only if the installation is carried out correctly. plumbing system.

Important! For hidden installation, experts advise choosing polypropylene pipes reinforced with fiberglass for laying in a strobe.

Copper pipes are resistant to high temperatures and pressure drops. Their service life can reach up to 60 years. However, the undeniable advantages are completely covered by a number of disadvantages, namely:

• high price;
• complex installation;
• electrical conductivity, leading to the appearance of electrocorrosion;
• oxidation.

It is also possible to use metal-plastic pipes for mounting the wiring of the water supply system, but some specific points must be taken into account. This system may not be able to withstand temperature fluctuations high pressure. In order to level this drawback, it is necessary, together with the use of a metal-layer, to carry out the installation of a pressure reducer without fail. If this is not done, it is possible that plastic pipes installed just a few years ago will soon need to be replaced.

Important! Installation of all collapsible connections (compression fittings) of metal-plastic pipes should be carried out only in accessible places. In accordance with the requirements of SNiPs, it is forbidden to hide them in floors, boxes, ceilings and other secret places.

When choosing pipes for installing a water supply system in an apartment, one should take into account factors such as the size of the budget allocated for this type of work, the temperature and pressure of the incoming water, and its qualitative composition.

What does the replacement work consist of?

• Before starting work on replacing elements of the plumbing system, it is necessary to draw up a plan for laying new pipes. This takes into account Appliances and plumbing fixtures already installed and expected to be installed at the time of renovation or in the near future. Also at this stage, the issue of the need to install meters simultaneously with the installation work. They are determined with the material of the pipeline and the number of inlet taps (valves) that allow shutting off water at any important section of the network for repairing connected equipment.

One of the possible plumbing layouts in the apartment - click to enlarge

Important! When choosing cranes, give preference to high-quality products that have a spherical design.

• Next, the water supply is shut off and the dismantling of old water pipes begins.
• Then new water pipes are laid, while attention is paid to the reliability of their fastening. Cranes, adapters, collectors are installed.

Features of replacing pipes in bathrooms

The largest volume of installation work of the plumbing system falls on the bathroom. After all, it is there that the largest number plumbing equipment. Therefore, replacing pipes in the bathroom takes more time and takes more effort. If WC not combined, then a separate replacement of pipes in the toilet is carried out. Usually when doing overhaul bathrooms are also being replaced with sewer pipes.

Installation additional equipment:

• By replacing water supply pipes, it is possible to install meters that control the flow of cold and hot water if they have not been previously installed. In addition to the counter, you will need to buy a ball valve, a coupling and a coarse filter.
• Installing a booster pump at the entrance to the apartment will ensure normal water pressure at low pressure in the network, which is below 0.5 atm. However, one must understand that if there is practically no water in the network, then the pump will not help.
• Installation of water purification filters will ensure the supply of water purified from sand and rust. For these purposes, coarse filters are purchased. If it is necessary to remove smaller impurities from the water, such as lime, salts and other substances, then fine filters are installed. To reduce bad smell water use carbon cartridges for filters.

In principle, do-it-yourself replacement of water supply pipes can be done, but it will take much more time to understand the essence of the issue. If you want to install a new pipeline within one day, then contact the professional masters.

In old houses, where engineering systems have been standing since the days of developed socialism, the replacement of pipelines is a top priority. Instead of steel and copper are installed plastic pipes as the preferred option and physical properties, and for the price.

Polypropylene pipes have many advantages over metal pipes, because:

• not afraid of corrosion and the formation of calcium deposits;
• protected from stray currents;
• resistant to both high and low temperatures;
• do not burst when the water in the system freezes;
• easy to install without time-consuming welding;
• are much cheaper than metal pipes.

Another important advantage of PP pipes over metal pipes is their low thermal conductivity. When the coolant passes through polypropylene pipes his thermal energy is not spent on heating the pipeline, as is the case with steel or copper pipes.

Due to this, the replacement of metal pipes with polypropylene pipes in the heating system can increase the heat transfer of radiators by 40%. Service life of PP pipes for DHW systems and heating reaches 25 years, and for cold water - 50 years.

Replacement of plumbing and heating system pipes with polypropylene

Installation of a new pipeline based on PP pipes can be done with minimal experience and a simple arsenal of tools.

First you need to draw up a diagram of a new engineering system, mark the sections where new pipes will run. You can navigate old pipes by measuring their length and drawing a wiring diagram on paper.

Before starting work, prepare necessary equipment and materials Special attention giving the type of pipes to be used.

Tools needed for work:

• grinder for cutting old metal pipes;
• special wrenches for twisting threaded connections;
• soldering iron for PP-pipes ("iron").

Depending on the engineering system to be upgraded, you need to buy the appropriate types of pipes. They differ in diameter and wall thickness, presence/absence of a reinforcing layer, nominal temperature and pressure in the system.

Note! These parameters can be specified in the Housing Office or management company(For apartment building), or see the project of the engineering system (for a private house).

For the installation of heating systems are used reinforced with aluminum or fiberglass pipes with a diameter of 20, 25 and 32 mm. The greater the length of the pipeline, the larger the cross section of the pipe should be.