To save money on the services of specialists, you can install heating in a private house from polypropylene pipes with your own hands. This approach will help you control all work processes yourself. As a result, you will not only save money, but also get truly reliable quality guarantees.
You can accurately perform the most critical operations yourself
It should be noted positive features pipes made of polypropylene:
- In case of emergency freezing of the system, pipes do not burst (like metal products). This point is especially important for the heating system of a private house, where such troubles are possible.
- Relatively low weight reduces the load on the structure.
- Installation of the engineering system is simple. To create it, you do not need welding equipment or the ability to handle it. The connections of the elements will be sealed without threaded units and sealing gaskets.
- In some situations, the lack of electrical conductivity will be useful.
For objectivity, the relatively large coefficient of thermal expansion should be mentioned. The table shows approximate figures for pipes 10 meters long, if they are heated to 45°C:
| Material (combined design) | Increase in length compared to the initial value, mm | Difference in mm compared to polypropylene sample |
|---|---|---|
| Cast iron | 50 | -590 |
| Steel | 56 | -584 |
| Copper | 83 | -557 |
| Metal + polymer | 125 | -515 |
| Polypropylene + aluminum | 145 | -495 |
| Polypropylene + fiberglass | 295 | -345 |
| Polypropylene | 640 | 0 |
| Polybutylene | 740 | 100 |
Technical characteristics of polypropylene pipes for heating
Since in this case the presence of high temperatures is implied, specialized products should be purchased. They are created from polypropylene transformed in a special way, when sections of ethylene are added to the standard molecular chain. This allows short-term operation in the range from +105°C to +115°C. Exact values indicated in the manufacturer's accompanying documentation.
Aluminum and fiberglass are added to increase strength and reduce the coefficient of expansion. Below are typical designations in names:
| Pipe type | System | Recommended maximum coolant temperature, in °C | Nominal pressure in the system, MPa |
|---|---|---|---|
| PN 10 | Cold water supply | 20 | 1 |
| PN 10 | "Warm floor" | 45 | 1 |
| PN 16 | Cold and hot water supply | 60 | 1,6 |
| PN 20 | Hot water supply | 95 | 2 |
| PN 25 | Hot water supply (private and centralized systems) | 95 | 2,5 |
Price of propylene pipes for heating
The cost of products depends on the type of materials and design, wall thickness. The brand matters. It is difficult to give precise advice, because changes in the market are caused by a variety of factors, including currency fluctuations. It would be fair to say that the price of fiberglass-reinforced polypropylene pipes for a heating system will be higher. On the other hand, we must remember that such strengthening of the structure will not be needed everywhere.
| Image | External diameter, mm | Wall thickness, mm | Type | Price per linear meter, rub. |
|---|---|---|---|---|
 | Polypropylene | |||
| 20 | 1,9 | PN 10 | 38 | |
| 20 | 2,8 | PN 16 | 51 | |
| 20 | 3,4 | PN 20 | 56 | |
 | Polypropylene + aluminum | |||
| 20 | 2,8 | PN 16 | 111 | |
| 20 | 3,4 | PN 20 | 124 | |
 | Polypropylene + fiberglass | |||
| 20 | 2,8 | PN 16 | 71 | |
| 20 | 3,4 | PN 20 | 88 | |
Installation features
When designing a system of polypropylene pipes with your own hands, you should carefully study the issues of thermal expansion. Even when choosing the most expensive aluminum-reinforced products, the corresponding changes will be significant. To compensate for temperature transformations when laying routes, rigid fixation is alternated with fastenings that do not impede mobility in the linear direction. “P”-shaped and other types of sections are used, which are created taking into account possible deformations.
Ring expansion joints in vertical sections
For example, one ring compensator with a pipe diameter of 20 mm is installed for every 30 linear meters of the route when using products. These data are used when using polypropylene products reinforced with aluminum on top. But they are only valid for a certain model. It is necessary to clarify specific reference data for the selected components.
When passing through walls and interfloor ceilings, sections of pipes of larger diameter are inserted into the holes. Subject matter experts have different opinions regarding the installation of the system in screeds and other monolithic elements of building structures. Experienced craftsmen place the route in special channels.
Selecting a heating scheme
Cheaper than other options is a do-it-yourself single-pipe water heating scheme for a private house. In such a project, heating radiators are connected in series, so the number of route components is minimal. But it should be noted that the most distant devices will operate with a low liquid temperature. Their autonomous adjustment is impossible, as well as connecting the equipment to a modern control complex of the “smart home” category.
Users have more options when choosing a circuit with a switchgear. A collector is used to power individual radiators or several blocks. If necessary, you can install sensors and electromagnetic drives to automatically maintain a comfortable temperature.
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Project components
It will be easier to create heating in a private house from polypropylene pipes with your own hands if you prepare the necessary materials and tools in advance:
- In addition to a certain number of pipes, fittings, valves, taps and other parts of the route are purchased.
- The system includes a tank for expansion when heated. To protect against excessive pressure, a special valve is installed.
- Radiators are equipped with Mayevsky regulators and taps.
- To work with pipes you will need a cutter and a special soldering apparatus.
Helpful advice! The exact list is compiled based on the project requirements. The list needs to be checked to reduce the time spent on shopping trips.
Do-it-yourself heating in a private house from polypropylene pipes: features of individual works
To connect the structure you will need a soldering iron. This device can be rented along with a set of attachments. They are inserted into the holes of the heating element and the power is turned on. The polymer parts are heated, removed from the nozzle and joined together without unnecessary pressure or disruption of geometry. All time intervals and other parameters must comply with the work instructions.
- Heating temperature, °C – 260.
- Outside diameter, mm – 20.
- Heating time, s – from 4 to 5.
- The interval from the moment of separation of the product to its connection to another heated surface, s – from 3 to 4.
- Exposure time during which the material will lose its plasticity, s – from 100 to 120.
Reinforcing polypropylene pipes with glass fiber does not create additional difficulties when connecting parts. They can be cut with a regular wood hacksaw. If there is an inner layer of aluminum, the edge must be made very smooth. A special tool is used for this.
According to professionals, polypropylene pipes are suitable for heating. Their advantages will be fully exploited if the information discussed above is taken into account.
Professionals create connections quickly and accurately. A beginner will have to practice
To reduce the cost, you need to carefully study the features of the project. Where there is free access, you can use cheaper products made from polypropylene without reinforcement. For a complete analysis it is necessary to consider:
- different types of products;
- installation technologies;
- compatibility with modern heating systems.
Total costs should be added to operating costs. Be sure to check the service life stated by the manufacturer.
Secrets of installing polypropylene pipes (video)
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Currently, different materials are used for the heating system. Many people choose heating made from polypropylene. What is the advantage of this choice and how to install it yourself?
You can do it yourself to heat a private house made of polypropylene. This heating system is quite simple to install and has its advantages.
Polypropylene pipes have high thermal insulation rates, a long service life, and are resistant to corrosion. Also, high insulating properties reduce the noise level that water makes when flowing through pipes. The polymer from which the products are made does not enter into any chemical reactions.
Pipes can be easily cut and welded. To connect individual elements, you only need a special soldering iron. The heating system made of polypropylene pipes is resistant to freezing. In case of accidents, the pipes do not burst, since they are metal.
The most the best option polypropylene pipes in a private house are reinforced products PN 25. They are durable and can withstand high temperatures well.
Which heating source to choose
Before installing heating, you should decide on the source. It could be:
- electricity;
- solid fuel.
If the house is supposed to gas heating, then you need to purchase the necessary equipment. A wall-mounted boiler with a protective mechanism and pumps is suitable. It also has automatic control installed.
The second option is a boiler with closed camera combustion and a coaxial tube, which is led outside through the wall. This will cost less than installing a standard chimney.
When heating with electricity, it is best to purchase an automated heating boiler with a pump and expansion tank.
Installation of a heating system using solid fuel is more difficult. When using other energy sources, polypropylene pipes are not suitable.
To make a heating system from polypropylene with your own hands, you should choose a pipe layout.
The single-pipe wiring diagram is considered the simplest and cheapest. Heating radiators are connected in series, the number of components of the route is small.
The wiring is designed in such a way that the farther the battery is from the heating unit, the less it will heat up. The water is cooled while moving along the main line. This is the disadvantage of this pipe routing scheme. It is also called “Leningradka” and is more often used in small houses.
When installing a heating system with a collector circuit, more money will be spent, but the quality of heating will be higher. The heat in the house is distributed evenly.
The best option is a two-pipe heating system. The pipes are laid in the floor or wall of the house. The return and supply lines are located in parallel. All batteries warm up evenly.
During heating installation, you will have to connect plastic elements with metal-plastic pipes. Their diameters must be suitable.
Connection rules: 
- polypropylene pipes 25 × 4.2 mm are suitable for metal-plastic pipes 20 × 2 mm;
- for pipes of size 16 × 2 mm, polypropylene products 20 × 3.4 mm should be connected;
- for pipes of size 26 × 3 mm, you need to connect polypropylene products 20 × 3.4 mm.
Pipes with large diameter, it won't make it any warmer.
Installation of heating from polypropylene pipes is carried out by diffusion welding of pipes and fittings using a special heating tool - a soldering iron.
A heating system made of polypropylene pipes requires one-time installation, that is, it is non-removable.
The marking of such pipes includes the abbreviation “PP” for domestically produced products or “PN” for international markets.
Let's consider what types of pipes exist and are suitable for use in heating systems.
The market for polypropylene pipes today is saturated with products from various manufacturers intended for use in various communications. To navigate this diversity, let’s consider their main types.
Categories of polypropylene pipes
| Marking | Design features | Scope of application | Maximum operating temperature, C | Nominal pressure, MPa |
| PN10 | Thin-walled pipe | Cold water supply | +20оС | 1 MPa (10.2 kg/cm2) |
| Underfloor heating systems | +45оС | 1 MPa (10.2 kg/cm2) | ||
| PN20 | Universal pipe | Hot water supply | +80оС | 2 MPa (20.4 kg/cm2) |
| PN25 | Aluminum foil reinforced pipe | Hot water supply and central heating with polypropylene | +95оС | 2.5 MPa (25.49 kg/cm2) |
| PN16 (rare variant) | +60оС | 1.6 MPa (16.32 kg/cm2) |
Polypropylene pipes for heating external diameters:
- PN10: 20, 25, 32, 40, 50, 63, 75, 90, 110 mm;
- PN20: 16, 20, 25, 32, 40, 50, 63, 75, 90, 110 mm:
- PN25: 20, 25, 32, 40, 50, 63, 75 mm.
Reinforced polypropylene pipes for heating PN25 have a layer of aluminum foil or fiberglass.
Color palette of polypropylene pipes: white and grey, green and black (UV protection).
A heating system made of polypropylene pipes is mounted using fittings of various configurations, which both connect propylene pipes for heating to each other and connect the metal parts of the system pipeline with polypropylene units.
| Coupling with internal (external) thread, Designed for connecting a polypropylene pipeline with metal pipes. | 
|
| Straight coupling and elbow (90 O and 45 O). Designed for connecting pipes to each other | |
| Elbow with internal (external) thread. Designed for connecting a polypropylene pipeline with metal pipes. |  
|
| Tee and crosspiece. Designed for connecting polypropylene pipes to each other. | |
| Tee with internal (external) thread |  
|
| Elbow with thread and strip for fastening to the wall (water socket). Designed for connecting a tap or mixer. | |
| Tubular “bypass”. Designed to bypass perpendicular pipes when heating a private house made of polypropylene is installed. | |
| Filter - “mud filter” for coarse cleaning | 
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Connection of polypropylene pipes
You can install heating with polypropylene pipes yourself, provided you have the ability to weld polypropylene pipes. As a last resort, minimum requirement in order to mount polypropylene heating there is a “huge” desire to learn how to weld such pipes and fittings.
Types of welding:
- coupling (socket) welding - used when welding two pipes with a diameter of up to 63 mm using a third element - a coupling;
- butt - used for welding pipes large diameter“butt” and involves the use of special centering equipment
Sleeve welding of polypropylene parts
Polypropylene heating is usually installed manual device for welding polypropylene pipes, which has special nozzles: sleeve and mandrel.
The sleeve is designed to heat and melt the outer surface of the end of the pipe, and the mandrel is used to heat and melt the internal socket of the connecting element (coupling).
The diameters of such nozzles must correspond to the diameters of the pipes being welded, and their surface has a Teflon coating, which provides a non-stick effect.
Attention! During the installation of heating systems made of polypropylene pipes, it is necessary to ensure the cleanliness of the surfaces of the heating nozzles, and, if necessary, clean them with wooden sticks from adhered fragments of polypropylene.
Important! The surfaces of the nozzles can only be cleaned when they are hot!
To operate, the necessary attachments are installed on the welding machine, and it is placed on a flat surface for “stationary” welding.
If it is necessary to perform work “on the wall,” the attachments are attached to the edge of the heating element of the soldering iron.
For polypropylene pipes, the optimal welding temperature is 260 o C. Before starting work, the device must be warmed up for 10-15 minutes.
Attention! It is contraindicated to weld polypropylene pipes at ambient temperatures below 0 ° C.
Socket welding of parts to each other is carried out in the following sequence:
Use a pipe cutter or scissors to cut the pipe at a right angle.
If the end of the pipe or fitting is dirty, clean it, degrease it with soapy water or alcohol and dry it.
If PN 10 or PN 20 pipes are welded, then we skip this step and immediately move on to the 4th.
To weld reinforced pipes type PN 25, you must first special tool- use a shaver to remove the top two layers: polypropylene and aluminum. The depth of stripping is determined by the depth of the bell seat. Often it corresponds to the depth of processing of the pipe with a shaver.
We place the parts to be welded on the heating elements. Heating of the parts being connected occurs simultaneously.
After heating, remove them from the nozzles and quickly connect them without turning them along the axis.
Allow some time for the polymer to harden and cool. Any deformation of the joint during the cooling period is unacceptable.
Attention! If you get an unsuccessful connection, there is only one way to fix it - cutting out the fitting and welding a new one.
Pay attention to the correct positioning when welding ball valves - they have a rotary handle, which in no case should “rest” against a wall or other neighboring object.
We check the appearance of the welded joint, which must meet the following requirements:
- Significant misalignment of pipes is not allowed;
- the surface of the socket (coupling) must not have cracks or other defects;
- near the edge of the coupling of the part welded to the pipe, a continuous strip should be visible, located along the entire circumference of the bead of melted material, which should protrude beyond the end surface of the connecting part.
Butt welding
Butt welding is performed using special equipment and is used for polypropylene pipes with a wall thickness of more than 4 mm and a diameter of 50 mm or more. In this article we will consider in detail this question we will not.
Welding polypropylene pipes and your health
At welding work With polypropylene pipes, for greater safety of your health, you must follow a number of the following rules:
- carry out work in a ventilated area;
- remember that a welding tool is a power tool that requires compliance with safety precautions when working with it;
- Do not allow polypropylene to come into contact with open flames, which may cause the formation of a melt and release carbon dioxide, water and other gaseous products are far from useful for human inhalation.
Welding saddles to the finished heating system pipeline
If after installation work or during repairs existing system heating there is a need to create some additional branch from the pipeline, you can use the method of welding saddles. This method is also used to connect a smaller diameter pipeline without special adapters to a larger diameter pipeline.
A distinction is made between a welded seat and a welded seat.
Installation of a welded seat involves the use of a special drill-mill to prepare the seat
The process of welding or welding the seat:
- Preparation of welded surfaces - clean, degreased, dry.
- A seat is prepared for the welded seat using a milling cutter. In the case of installing a fitting to an aluminum-reinforced polypropylene pipe, it is necessary to “go through” the foil layer with a cutter to ensure a larger contact area of the surfaces being welded.
- Warming up the welding machine to a temperature of 260 ° C.
The process of properly welding such elements involves the use of special semicircular heating sleeves on the welding machine.
Their absence may create additional difficulties during installation, but with some skill you can heat up the surfaces to be welded with ordinary nozzles of a suitable diameter, although... Who will guarantee the quality of the connection?
- Heating of the pipe surface continues for approximately 25-30 s, while at the same time (about 20 s) the surface of the welded seat is heated.
- Having removed the welding tool, quickly press the saddle against the heated section of the pipe in one motion and fix the connection for 30 s. After 7-10 minutes this saddle is suitable for further “assembly operation”.
- If a welded seat is used, after its installation, it is necessary to drill a hole in the pipe at the landing site using a twist drill of a suitable diameter. In this case, it is necessary to avoid chips getting into the pipe, and also control the drilling depth so as not to damage the opposite wall of the pipe.
Features of installation of polymer pipelines
When installing heating from polypropylene pipes, it is necessary to take into account the thermal expansion of such material along the longitudinal axis.
Pipeline installation is usually carried out at a temperature environment at 15-30 o C, and the temperature of the coolant in these pipes during operation of the heating system can reach quite high values (up to 95 o C - 110 o C in closed-type heating systems).
This means that unreinforced polypropylene pipes can change their size by 10-12 mm for each linear meter of pipe. For reinforced polypropylene pipes this value is 2.4-2.6 mm. With a significant total length of the heating system pipe, its expansion (lengthening-constriction) will be significant (for a five-meter pipeline, another plus 60 mm).
Therefore, when installing long lines of heating systems, it is necessary to use pipes reinforced with aluminum foil. In underfloor heating systems, it is also possible to use unreinforced pipes if they are laid in concrete screed, but preference is still given to reinforced options.
Attention! If you do not want the pipes to heat the walls and floor slabs when installing heating with polypropylene pipes, they must be placed in a “clothing” of polyurethane foam “casings”, which will play a double role: both a heat insulator and a shock-absorbing material.
Fastening of polyurethane pipelines is carried out using movable and fixed support mounts.
To compensate for the linear expansion or contraction of pipes in heating systems, various techniques are used: fastening the pipeline to rigid (fixed) and movable supports, as well as creating compensation sections (compensators) of the pipeline.
Rigid supports require the pipe to be fixed in them. This makes it possible to divide the entire heating system into certain compensation sections, each of which must have a compensation “mechanism”.
Movable supports play a supporting role and allow the pipe to move in them during its linear temperature deformation. When diverting a pipe from a riser, it is very important to take into account its thermal expansion due to its significant overall length. For this purpose, the “free withdrawal” technique is used.
The polypropylene heating scheme must also “take into account” the possibility of elastic bending of the pipeline during linear extension of the riser. Laying pipes in channels and shafts involves installing rigid fastening points at a distance of up to 3 m. And for thermal expansion, or rather its compensation, use linear elongation compensators. Usually these are L-shaped or U-shaped compensation elements.
The heating scheme from polypropylene pipes involves the “automatic” creation of U-shaped and L-shaped expansion joints when the pipeline bypasses walls, corners, columns and other building elements.
Attention! In long trunk lines, it is imperative to plan the installation of compensation elements.
This compensation installation option - “snake”, is mainly used for metal-plastic pipes rolled into a coil. Usually they are mounted in closed niches and are not completely straightened. The loss of aesthetic appearance (it is still closed from human view) makes it possible to create natural compensators for linear extensions.
Let's summarize! The heating system made of polypropylene pipes is an elastic system that requires its correct fastening and fastening into a fixed support.
When heating made of polypropylene is “hidden” in the walls it is necessary:
- leave in the wall under the plaster on vertically and horizontally located areas with tees and elbows leave free space 3-5 cm;
- to compensate for the linear expansion of pipes in the axial direction, it is necessary to provide a distance from the pipe turn to the obstacle of at least 10 mm for each meter of length of a given straight section of the pipe;
- when installing pipes in grooves, their size should be at least 70-80% larger than the diameter of the pipe, and the pipe itself can be laid in tubular insulation (foamed polyethylene or polyurethane):
- with this installation, “centering” supports can be created from polyurethane foam, positioning and fixing the pipe evenly in the center of the groove;
- The groove is not plastered over, but is covered with an overlay plate;
- It is also possible to lay such pipes in a corrugated pipe sleeve.
Based on the above, we repeat once again: for laying hot water supply and heating pipelines, it is better to use reinforced pipes for all types of installation - open or closed in a groove, niche or under plaster. It is much easier to use a reinforced pipe than to use a cheaper non-reinforced one and come up with a lot of tricks to make it expand in temperature.
When passing a pipeline through building structures, it is necessary to use plastic or metal sleeves with a diameter 5-10 mm larger than the diameter of the pipe. The gap is filled with a soft elastic material, which prevents the penetration of moisture and sounds through the sleeve and “allows” the longitudinal “temperature” movement of the pipe relative to the sleeve.
Approximate diagram of heating from polypropylene pipes (PP), gradually replaced traditional metal ones not only in water supply systems, but also in heating. Ease of installation plays an important role in its growing popularity - it is quite easy to install polypropylene pipes with your own hands, even in the absence of special skills and knowledge.
Positive qualities of PP pipes
Such pipes have the following advantages:
Attention! In most cases, the maximum permissible temperature of the working fluid is 90°C (this includes products of the “twentieth” and “twenty-first” brands). When submitting cold water, where the temperature often does not exceed 20ᵒC, pipes from “eleventh” to “sixteenth” grades are used.
Important installation details
The connection of PP pipes is carried out using threaded/non-threaded fittings. In turn, threaded products can be:
- one-piece;
- detachable.
It is worth noting that installation is primarily affected by operating conditions.
After familiarizing yourself with all necessary information you can start working.
Stage one. Drafting
Installation work should begin with drawing up a project for the future highway. An important criterion At the same time, ergonomics are important, as a result of which the number of turns and connecting elements should be minimal.
When arranging a heating system, a well-designed project is especially important, in which you should indicate the location of such elements as:
- couplings;
- adapters;
- fasteners;
- corners;
- heating equipment.
The line is connected to the radiators in a one- or two-pipe way, from the side or from the bottom.
Attention! No less important point When designing, the possible thermal expansion of polypropylene is also considered - this should also be taken into account.
Plumbing
Here the highway connects to centralized system for the purpose of supplying water to the necessary plumbing fixtures - toilet, sinks, boiler, etc. There are two ways to do the wiring.
Method number 1. Open option. Horizontal pipes are installed slightly above floor level, and vertical pipes are installed exclusively in the corners. All this allows you to make the pipeline less noticeable.
Method number 2. Closed option. It is extremely difficult to implement, since it involves preliminary carrying out the most accurate calculations. Pipes (necessarily solid) are walled up in the walls, and there must be free access to each joint.
In addition, the water supply layout can be:
- sequential type (the most budget-friendly and easiest-to-implement option);
- collector type (a collector is used when supplying water);
- with pass-through sockets (not very popular).
Stage two. Welding of polypropylene pipes
This procedure will require electric jigsaw(cutting polypropylene) and special welding equipment.
Attention! Before starting work, sleeves (nozzles) of the required diameter are put on. Next, using the thermostat, the appropriate temperature is set (about 260-265ᵒC), after which the device warms up (you can find out about the heating time from the manufacturer’s instructions).
Step one. While the device is warming up, necessary measurements, pipes are marked and cut.
Step two. The ends of the products that are planned to be connected to each other are thoroughly cleaned and degreased.
Step three. Using a pencil, mark the depth of insertion of each product into the sleeve. It is typical that at least a millimeter gap should remain, so the pipes do not rest against the fitting coupling.
Step four. The PP pipe with fitting is put on the sleeve in accordance with the marks made, and heating of all elements must occur simultaneously.
Attention! If the fitting is bad (or vice versa - too loose) of one of the elements, it is immediately rejected.
The heating duration depends not only on the diameter of the products, but also on the depth of welding (this can be found in the table below).
Step five. After a certain period of time, the products are removed and connected, pressing onto each other with little effort. It is prohibited to rotate the elements along the center line.
Step six. Within a few seconds after the connection, an initial adjustment is made, then the elements are finally fixed.
Attention! The assembly sequence is determined in advance.
If there are no gaps left at the connection point, then it (the connection) can be considered high quality.
Video - Welding PP pipes
Manufacturing of welding machine
Due to the fact that a more or less good one costs over a thousand rubles, it is cheaper to rent it or make it yourself. If the latter was chosen, then for work you should prepare:
The sequence of actions should be as follows.
Step one. In order to improve heat transfer, the sole of the iron is treated with thermal paste, then a Teflon sleeve is fixed. The location of the latter is determined in advance - the wide part up or down.
Step two. The sharp “nose” is filed off for more convenient work near walls.
Step three. The iron is heated until the device turns off a second time.
Step four. It’s good if the iron is equipped with a temperature sensor - this will allow you to accurately determine the heating temperature. But there is an easier way - through lead. This metal melts at 230ᵒC and above, which approximately coincides with the temperature required for welding.
The further technology is identical to that described above.
Stage three. Pipeline installation
When laying the highway you will need:
- pipes;
- tees;
- Ball Valves;
- plugs;
- adapters;
- bends;
- couplings;
- detachable connecting elements;
- threaded fittings;
- plastic clamps.
First of all, the installation of the main elements of the system (plumbing, radiators, boilers, etc.) is carried out, after which the future highway is marked in accordance with the drawn up project. Pipeline elements are connected to each other using couplings.
Attention! Hard-to-reach areas of the system are assembled separately.
When it comes to heating or hot water supply, thermal expansion is taken into account. To compensate for the latter, it is advisable to use movable connections. When installing a closed pipeline, the walls are first grooved (a groove with a width of two pipe diameters is made in appropriate places).
Filling the pipeline with liquid is permissible only after one hour from the end of installation. Hydraulic testing can be carried out only after 24 hours.
Sewage system made of PP pipes
As noted earlier, polypropylene pipes are now actively used in the construction of buildings. The installation procedure in this case has its own nuances.
Internal sewerage
There are a number of rules that must be followed when installing sewerage in the house.
- The pipeline is laid at an angle in the direction sewer riser(about 3 cm per linear meter).
- If the room is not heated, then the pipes are additionally insulated with mineral wool.
- You cannot make sharp turns at an angle of 90ᵒ; instead, so-called half-bends are used.
- Fan-type ventilation is a mandatory component of the sewer system, which will prevent penetration unpleasant odor in the home.
- The toilet is connected only after the sink, otherwise the water seal will break.
External sewerage
Step one. The diameter of the pipes is determined, depending mainly on the number of people living in the house.
Step two. A trench is dug from the sewer riser to a septic tank or cesspool. In this case, a slope is maintained depending on the soil freezing line, or the pipeline is insulated with mineral wool.
Step three. The bottom is covered with a “cushion” of sand. Its thickness should be at least 20 cm.
Step four. The pipeline is being laid. It is important to avoid possible sagging, otherwise the connections will soon collapse.
Attention! The seams do not need to be sealed, since PP pipes for external use already have rubber seals.
Horizontal drilling of a trench for a pipeline is carried out using special equipment with pressure-action pump jacks. Drilling occurs using a steel cone-shaped tip. A similar technology is used in construction:
- auto and railway roads;
- pipelines to basements;
- highways to working wells.
Installing a PP pipeline with your own hands will help you save a lot, but only if done correctly.
You can design and install heating system elements made from polypropylene-based pipes on your own. Such heating will be of particular interest to owners of private houses and various types of country houses who carry out home improvement work on their own.
Before proceeding with the installation of polypropylene heating, it is necessary to consider the main advantages of such a solution, select a heat source, understand pipe routing diagrams, master the basic nuances of installing elements, and then carry out the wiring in accordance with the chosen scheme.
DIY polypropylene heating
Advantages of polypropylene pipes
Before you begin installing polypropylene heating on your own, you need to select a suitable heating source.
Gas
A gas boiler
If there is a gas pipeline near the house, you need to buy the appropriate equipment. The best option for arranging a heating system made of polypropylene - a modern wall-mounted boiler model with protective mechanisms, necessary pumps and means automatic control and management.
If desired, you can abandon the traditional chimney by choosing a boiler model with a closed combustion chamber and a special coaxial tube through which oxygen will be supplied to the unit and exhaust air will be removed from it.
The air exchange pipe can be led outside through the wall of the building, which is much more profitable in financially event when compared with the installation of a standard type chimney.
Electricity
Electric boiler Proterm
If electricity will be used to heat the house, then it is best to buy an automated heating boiler equipped with a pump, the necessary safety equipment, and an expansion tank.
The easiest way to install such a heating system is to do it yourself.
Solid fuel
Solid fuel boiler
If you plan to use various types of solid fuel for heating, you need to competently approach the development of a heating boiler piping scheme in order to avoid many mistakes. At the outlet of the heating unit, the temperature of the coolant reaches about 1000 degrees, which imposes a number of additional requirements for the installation of the heating system.
There are also options for arranging heating systems using other energy sources, however, in the case of installing polypropylene pipes, it is better to refrain from using them.
Heating system diagrams
Select the optimal pipe layout for self-installation of polypropylene heating. You will receive connection recommendations in the future. individual elements and place them in accordance with the selected plan.
Single-pipe scheme
Single-pipe scheme
The simplest method of arranging a heating system. In accordance with this wiring method, each battery installed further from the heating unit will heat up to a lower temperature compared to the previously installed battery.
This method makes it possible to reduce the consumption of materials for the arrangement of the heating system. However, the heating efficiency will be low, because The temperature distribution with such pipe routing is uneven.
In view of this, you should try to refrain from a single-pipe pipe routing scheme.
Collector circuit
Collector circuit
To equip a heating system according to this scheme, you will have to spend more materials, however, the main operational properties such heating will be much higher.
Heat distribution throughout the rooms will be fairly uniform and high quality.
Two-pipe system
The most optimal method of arranging a heating system. The pipes are laid into the floor or into the walls of the house around the perimeter. Two-pipe heating is best suited for heating a home. Therefore, experts recommend giving preference to this particular pipe routing option.
What pipes should I use?
During the installation of a heating system from the pipes in question, you may need to connect plastic elements with metal-plastic pipes. When performing such work, make sure that the diameters of both types of pipes match each other.
Connections of polypropylene and metal pipes to each other
Follow the following pattern:
- for connection to metal-plastic products 20x2 mm, use polypropylene pipes measuring 25x4.2 mm;
- to metal-plastic pipes with dimensions of 16x2 mm, you need to connect polypropylene pipes with dimensions of 20x3.4 mm;
- To metal pipes with dimensions 26x3 mm, polypropylene pipes having dimensions 32x5.4 mm are connected.
If pipes are laid to the batteries in the house from the main pipeline, and the wiring is carried out in accordance with a two-pipe scheme, it is necessary to lay a polypropylene pipe measuring 20x3.4 mm.
Polypropylene pipes
The use of pipes with a larger diameter does not make much sense. There is also no point in using radiator valves larger than 1.2 inches. Therefore, the statement that as the diameter of polypropylene pipes and thermostatic valves increases, the rooms become warmer is not true.
To ensure the required performance of the heating system, it is important that the supply pipeline between the boiler and the latest battery is no more than 25 m long. In this case, the boiler power should not exceed 12 kW.
Thus, in order for, for example, a heating system with pipes measuring 20x3.4 to work as efficiently and correctly as possible, it must include a maximum of 6 batteries of 10 sections each.
If it is necessary to connect more batteries, the length of the pipes for their installation will have to be increased, which will negatively affect the uniform heating of batteries installed at a greater distance from the heating boiler.
Installation of heating from polypropylene pipes and aluminum radiators
However, if you cannot refuse to connect more batteries or increase the length of pipes, equip the heating system using pipes of a larger cross-section. For example, 32x5.4 mm. Connect to them metal-plastic pipes 26x3 mm.
There is also another option for solving this problem - instead of one heating circuit, you can equip two.
Important features of work
Before you begin heating installation work, familiarize yourself with the basic recommendations for connecting system elements.
To connect pipes, as already noted, a special soldering iron is used. It is most convenient to do this work together with a partner.
Soldering iron for soldering polypropylene pipes
The instructions for soldering polypropylene pipes yourself are extremely simple. It is only important to prevent overheating of the ends of the mating elements and to have time to firmly fix the fittings and polypropylene pipes within ten seconds after they are connected.
It was previously noted that polypropylene pipes normally tolerate defrosting of the heating system. However, it is important to remember that in addition to pipes, the system also includes expansion tanks and, of course, a boiler, and they can break when the system defrosts.
Heating installation guide
Soldering technology for polypropylene pipes
Pre-prepare a diagram of the system wiring, installation of batteries, and connection of the boiler. In the future you will do everything necessary work in accordance with this scheme.
The actual work of installing pipes is carried out in several simple steps.
Welding time table for polypropylene pipes
Plastic pipe soldering machine
First step
Calculate the layout of polypropylene pipes.
Second step
Calculate the length of the polypropylene pipe sections in each section of the heating system. Install suitable look fitting.
Marking
Third step
Determine the required welding time for the joints. It depends on the diameter of the pipes used and is specified in the relevant reference literature. First bring all the elements of the heating system into the room and let them warm up to room temperature.
Fourth step
In accordance with the calculated data, mark the places where the pipes will be cut using a marker.
Fifth step
Make a cut using special scissors. Cut perpendicular to the surface.
PP pipe cutting
Sixth step
Wipe the sections with an alcohol solution and remove any dirt present with a dry cloth.
Preparing the fitting
Seventh step
Take a soldering nozzle that matches the cross-sectional diameter of the pipes, degrease it, and then set it horizontally and let it heat up to 265 degrees.
Installation of PP pipes
Place the pipe and fitting into the heater holes, select the required heating time from the table and directly heat the elements being connected. After this, carefully remove the products, insert the pipe into the fitting and hold for the required time. It is better not to touch the elements being connected until they have cooled completely.
Pipe welding
Using a similar scheme, solder all the pipes of the heating system, focusing on the drawings you have. Connecting pipes to heating device and radiators also follow the drawings.
To prevent pipes from sagging in the future, ensure that they are frequently attached to the surface using clips. For a polypropylene system, the optimal coolant temperature is 60 degrees.
Good luck!
Video - DIY polypropylene heating
tolkostroyka.ru
Heating schemes in a private house made of polypropylene
The organization of a heating system in a private home involves the possibility of laying communications using polypropylene pipes. Thanks to the operational and technical characteristics of the products used, an ordinary person, without much experience in the construction industry, can create a heating scheme for a private house made of polypropylene pipes. As a rule, the help of specialists is necessary only for completely inexperienced and completely unconfident homeowners. However, those who nevertheless decide to carry out the necessary work without outside assistance will first need heating schemes in a private house made of polypropylene pipes, as well as a small amount of theoretical knowledge and the desire to create comfort and coziness in their own home.
Construction industry specialists assure that there are practically no difficulties in the process of designing a heating system based on a private building. This makes it possible for anyone who wants to carry out all the calculations with their own hands, develop a project with drawings, illustrations and other materials that will fully reflect the design of the future system.
Graphic diagram home heating systems
Main material – pipes
In the process of designing a heating system at home, you will have to face the need to clearly define the technical characteristics of the pipes that you will use in the future. Meanwhile, it must be taken into account that the average person who is not a professional employee of the construction industry and does not have full knowledge about the whole variety of products with different operational and technological characteristics will simply not be able to short terms study the proposed product range in the relevant market segment. The parameters that characterize products in this category are as follows:
- logo illustrating trademark manufacturer;
- abbreviation for functional purpose products, as well as data on a specific modification;
- conditional pressure indicator, which is acceptable for working environment;
- indication of the wall thickness of the product and its diameter along the external border;
- operational class;
- product standard;
- the maximum permissible pressure value, measured in bar.
Single pipe system heating with overhead wiring Combinations of these parameters directly determine the operational period of a particular product.
Product categories
It is worth noting that not only the diameter and service life determine the applicability of a particular product in the heating system of a private home. There is one more criterion that will have to be taken into account in the process of creating a heating installation scheme made from polypropylene pipes. Modern manufacturers They offer us products reinforced with aluminum or fiberglass. Actually, pipes improved with the help of a material such as aluminum are relevant in terms of applicability in heating systems. Meanwhile, fiber-enhanced products are widely used. They are optimal solution for underfloor heating systems, radiator-type circuits and hot water supply to private buildings. However, it is worth considering that those products that are covered with fiberglass on the inside require a slight elongation of sections of the linear format under conditions of rising temperatures and some permeability of oxygen.
Bottom heating system wiring
Heating system components
Of course, it is quite obvious that there is a certain number of elements in the system:
- expansion tank;
- boiler;
- radiator, one or more;
- wiring
Provided that the dimensions of a private house are large enough, it becomes possible to allocate a separate room for the boiler - a boiler room. However, in such a situation it is extremely necessary to provide combustion products with the opportunity to naturally exit the system. This refers to the installation of a chimney. If you decide to equip a small boiler room in own home, cover the walls of the room with a special composition, thanks to which the fire will not be able to spread throughout the building in the event of a boiler fire. This is a traditional requirement for the safety level of the heating system in any private home.
What do you need to consider?
Before proceeding with direct calculations and subsequent development of drawings and diagrams, it is important to determine the length of polypropylene pipes. In this matter, you will have to take into account a number of factors, the main ones being:
- parameters of premises in the building;
- location, angle and number of pipe turns within the system;
- number of pipe connection points;
- actual number of piers;
- such a floor parameter as length.
remember, that ready-made diagrams heating systems in a private house made of polypropylene are presented on the Internet in a wide variety, and therefore you can check the accuracy of your own drawings using samples published on various resources.
Single pipe heating system Execution options
In the construction industry, there are two traditional options for organizing systems of the described type. Their separation is based on the type of supply carried out by the coolant. So, there are categories of upper and lower execution. If we talk about correct execution, then the liquid circulates naturally within the functioning system, that is, on its own. In the second option, in order to force the liquid to move through the pipes, it is assumed that a pressure-type pump is used. The second option is perfect for multi-story buildings, because without a pressure pump it is impossible to make the liquid circulate at more than one level.
Specifics of installation work
When developing a diagram of a communication system made of polypropylene pipes with your own hands, you need to understand that there are certain nuances of installation work. First of all, you should carefully study the capabilities and applicability of elements such as wiring, as well as a radiator. Experts with many years of experience in the construction industry strongly recommend giving preference to hydraulic heating modification, which involves a two-pipe forced circulation liquids, as well as the use of radiators made of aluminum. Aluminum batteries have excellent properties, due to which they heat up very quickly, while cooling down for quite a long time.
Tools
Since working on organizing heating from polypropylene pipes with your own hands involves carrying out a number of construction operations, it is necessary to collect an appropriate set of tools and devices. These traditionally include:
- electric jigsaw;
- marker;
- fitting;
- perforator;
- roulette;
- trimmer
If you provide yourself with this set of tools and devices in advance, the process of implementing a heating communication project will be significantly simplified and will take a minimum amount of time.
Two-pipe heating system Of course, tools alone are not enough in construction. In many ways, the success and quality of the result depend on the experience of the employee. If you cannot boast of having a sufficient number of practical skills, you should turn to the recommendations of professionals that are offered, for example, on the Internet. So, experienced experts suggest paying attention to the following points:
- You can start directly cutting pipes only after the installation of all large equipment, for example, batteries, boilers, dispensers or expansion tanks, has been completed;
- in order to divide the existing pipes into a certain number of blanks, it is best to use special construction scissors, strictly observing an angle of ninety degrees;
- when the holding elements are installed, the sagging is eliminated, and a sufficient level of installation reliability is ensured;
- any work related to the use of polypropylene products requires a certain temperature regime in room;
- with the help of fum tape it is easiest to achieve reliability and high quality connections of fitting elements;
- when polypropylene pipes are cut, sloppy cut edges remain on the product, which can be easily removed using a trimmer;
- in order for the connection to be fixed in the best possible way, it is enough to use a welding device;
- After joining using a welding machine, it is necessary to give the material some time to completely cool and, accordingly, harden.
Example horizontal wiring To make your home safe and, at the same time, warm and comfortable, you need to analyze absolutely everything. You will have to thoroughly study the methods of laying pipeline systems, the number of floors of an architectural object, the load on each specific battery, and much more. You should not completely refuse the help of qualified specialists, because the information that you can study on your own may simply not be enough if you plan to build heating in unusual conditions. Remember that the main thing is to achieve a result, which in this case involves creating the most efficient object that can easily cope with heavy loads and will last for many years.
Beam routing example
jsnip.ru
Heating from polypropylene pipes in a private house
Today's rating modern technologies impresses its consumers (SNiP). Thanks to them, you can install and solder heating systems of various variations. Installation of heating from polypropylene pipes can be carried out either with the help of specialists or with your own hands.
Do-it-yourself heating connection in a private house using a manifold and polypropylene pipes is one of the best options. Welding diagram at this method does not require complex equipment. Professionals especially recommend using a manifold and polypropylene pipeline, as they increase the service life (SNiP).
High temperature is harmful aluminum pipe, it becomes covered with rust from the inside, but if you use a polypropylene pipeline (fiberglass), its technical characteristics will protect you from such welding problems.
Marking polypropylene pipes according to GOST for heating, if you do it yourself, has its advantages, but also disadvantages of welding.
- Simple connection - this battery installation scheme is easy to do with your own hands, and everything can be done with little time using a collector.
- Large operational flow – more than 50 years. Reliability - since the pipeline is of high quality, water supply problems will not bother you, just like the riser. Leakage is excluded;
- Low price for materials, connection, riser, manifold. Installing batteries with polypropylene pipes in a private house will cost much less;
- The technology is harmless to nature;
- The efficiency of GOST pipes is excellent thermal insulation characteristics: acceptable temperature, the riser is not affected;
- Sound insulation. This quality ensures silent operation;
- You can install heating from polypropylene pipes with your own hands in a private house inside a building structure;
- The decision to choose one material or another depends on the collector, in what condition the riser will be, as well as the quality of the work done, in general. If you want to solder the heating system and manifold, it is best to choose reinforced fiberglass for the pipeline;
- Temperature affects the riser and the performance of the unit. Be sure to make sure that the temperature is not too high, otherwise the pipeline is GOST and the insulation may fail.
How to choose polypropylene pipes for heating
Which diameter to choose
There is a large selection of polypropylene pipes, so you need to know their diameter and properties for an error-free PN-10 connection.
- The outer diameter is 20, 25, 32, 40-110 mm.
- Inner diameter – 16.2, 25, 32, 40 – 90 mm.
A rare species that makes it possible to use pipes at temperatures of 80 °C. PN-20.
- Inner diameter – 10.6, 25, 32, 40 -73.2 mm.
- External diameter – 16, 25, 32, 40 -110 mm.
Can be used with wall thicknesses from 16 mm. up to 18.4 mm. for welding. The pipes are universal - temperatures during their use are allowed up to 80 °C. The pressure cannot exceed 2 MPa. PN-25.
It is best used for installing and welding batteries in a private home with your own hands. The peculiarity is two layers of plastic, between which an aluminum gasket coated with glue is laid. The aluminum unit has an internal diameter with dimensions ranging from 13.5, 25, 32, 40 -50 mm, external diameter 21.2, 25, 32-77.9. They operate at 90 °C and pressure up to 2.5 MPa.
Hot water supply does not harm the pipes, thanks to the aluminum layer. In the event that you had to choose reinforced products for welding, it will be necessary to take into account its location, as well as take into account how its taps are located. Soldering and insulation will be difficult if placed on outside.
Can be done reinforced pipelines using fiberglass. The quality is similar to foil welding technology. The first option is reinforced (fiberglass), their technical characteristics guarantee high thermal expansion, however, installation is quite simple. The technology for connecting a pipeline (diameter not exceeding 25, 32.63 mm) has two methods:
- Socket soldering.
- Socket welding.
A plus option is a threaded connection. To implement this, you will need fittings equipped with a socket. The pipeline can also be connected if butt soldering occurs - no couplings are required. Fittings – if they are selected correctly, you can also use couplings.
Correct step-by-step installation (SNiP).
For correct installation batteries, there is a diagram - follow it. (1) Ext. Pipe diameter (2) Heating (sec) (3) Connection (sec) (4) Cooling (min). (mm)
(1) 75 (2) 30 (3) 10 (4) 8 (1) 16 (2) 5 (3) 4 (4) 2 (1) 20 (2) 7 (3) 4 (4) 2 (1) 25 (2) 7 (3) 4 (4) 2 (1) 32 (2) 8 (3) 6 (4) 4 (1) 40 (2) 12 (3) 6 (4) 4 (1) 50 (2) 18 (3) 6 (4) 4
(1) 63 (2) 24 (3) 8 (4) 6
Step 1. The layout of polypropylene pipes according to GOST must be calculated; Step 2. Next is the length. It is necessary to accurately calculate the size of the pipes in each heating location and install the necessary fittings; Step 3. One or another welding time for the connection is determined - it depends on the diameter of the pipes used. Next, we bring all the elements into the room: their temperature should be room temperature; Step 4. Mark (using a marker) the places where the pipes will be cut; Step 5. Use scissors to cut PP pipes. Pipes are cut perpendicularly; Step 6. Fittings are prepared: the elements are cleaned of all dirt with a dry cloth; Step 7
After preparation, we move on to the process. Based on the cross-section of the pipes, take a fat-free nozzle for the welding machine. Installs and heats horizontally up to 265°C.
The fittings and pipe fit into the heater opening and are heated accordingly to the desired connection. After removal, the elements are connected.
Wait until they cool completely
Water heating scheme (SNiP)
You can choose your own polypropylene water supply schemes for a private house based on the stages of economy and comfort - non-volatile, pressure, one- or two-pipe scheme. Series connection chain of a radiator - a system with conventional circulation, for heating in a small private house
Wiring examples
- Single-pipe wiring Serial pipeline (fiberglass) - water passes through the batteries in series. The last pipeline (battery) receives water at a temperature much lower than the initial one. When it breaks down, the radiator becomes a problem - fixing it requires shutting down the entire system and disconnecting the entire radiator. Therefore, repairs are considered difficult.
- Two-pipe wiring This system is suitable for almost any building and home. It differs from single-pipe wiring in that the heat is distributed evenly - the temperature does not decrease. From the radiator, water is directed into the riser, and then into the pipeline, evenly distributing heat. From one radiator, water flows into another, thus passing through each one.
Also, with this wiring it is possible to turn off each radiator individually. The system is equipped with two tubes that have their own taps:
- Outlet tube;
- Supply tube.
Two-pipe wiring is divided into a pipeline with upper and lower wiring. Each of them uses its taps, riser, fiberglass differently, and the flow of water from the radiator to other welding elements depends on the type of wiring.
It is better to choose a connection in your home, having studied all the characteristics of the water supply, see what the maximum insulation is with aluminum foil, etc. Check the taps, riser, manifold, fiberglass, condition of the radiator; insulation of the material is also very important. In order to competently and accurately produce a unit with your own hands, you need to study all the elements of welding, be able or learn to solder parts (reinforced, with aluminum foil), know the exact diameter, since it is very important: 32, 25, 40 mm, etc. Knowing the diameter of the part, you can safely start soldering all the elements, be it wiring taps, reinforced pipes or wall sections.
Two-pipe polypropylene heating system
homeframe.ru
Do-it-yourself heating from polypropylene pipes in a private house
aqueo.ru » Heating » Do-it-yourself heating from polypropylene pipes in a private house
The topic of reliability, efficiency and durability of the heating system of private houses in our country will always be relevant for the reason climatic conditions. Therefore, homeowners have to think about how to achieve this with minimal cost. financial resources and time.
Heating system made of polypropylene pipes in a private house To do this, at a minimum, the following conditions must be met:
- competently draw up a project for the location of the main elements of the heating system in the house;
- choose quality equipment, tools and pipes;
- plan the sequence of installation work;
- If possible, do all or most of the installation yourself.
Rich long-term operating experience steel pipes And cast iron radiators indicates the difficulties in these heating systems during installation and operation. The main disadvantages include the large weight of all elements, which complicates installation work and contributes to the clogging of pipes with scale and rust products. Gradually people are moving away from these ancient technologies.
It is very practical to use a heating system with copper pipes; it does not rust, therefore it is durable, but very expensive. More and more people are inclined to use polypropylene pipes. Let's consider this option.
Advantages
- In heating systems, one of the advantages of polypropylene pipes is high thermal insulation. This ensures low heat loss on the way to the radiator, less fuel is consumed for heating, and higher efficiency.
- In terms of service life, polypropylene pipes are superior to metal products. Some manufacturers claim that their products will last at least 50 years.
- Installation technologies are quite well thought out and practically tested. They are simple and do not require heavy welding equipment, gas cylinders, hoses or transformers. Installation of polypropylene elements can be compared to a children's construction set, only for adults. All products and tools are simple and light; in appearance, it is intuitively clear what to attach and where. A person who does not have special professional skills can assemble everything with his own hands high level quality.
Technologies for installing polypropylene pipes - The elasticity of the material makes it possible to better withstand the freezing process compared to metal products.
- Polypropylene parts do not rust and do not accumulate scale during operation. The pipes are neutral to the chemical components of the coolant and do not interact with it. chemical reaction.
- The cost of polypropylene products is significantly cheaper than metal and especially copper.
Disadvantages and methods for eliminating them
- The main disadvantage of polypropylene pipes is their high expansion coefficient. At a coolant temperature of 100°C, 10 meters of pipe lengthens to 15 cm. This leads to deformation of the structure. In order to prevent destruction, flexible supports are installed and compensation loops are made. Later, foil-reinforced pipes began to be used, which significantly reduced the expansion coefficient. Nowadays, the most practical pipes are reinforced with glass fiber: under the same conditions they extend by only 1 cm.
- Polypropylene products, especially connecting elements, are inferior to metal pipes in strength. It is not even correct to compare them: when subjected to strong impacts with hard objects, polypropylene is deformed and may collapse.
Choice
There are many models of polypropylene pipes. We will describe what can and should be used.
Mandatory requirement for a heating system - only heat-resistant pipes and connecting elements are selected that can withstand temperatures of at least 80°C.
They must be reinforced; there are three types:
- PPV foil-reinforced pipes along the outer diameter;
- PPV foil-reinforced pipes along the internal diameter;
- PPV pipes reinforced with glass fiber.
Pipe reinforcement with foil along the inner diameter The best option is fiberglass reinforced pipes; they are soldered well and have a low expansion coefficient. Pipes reinforced at the outer diameter must be stripped of reinforced foil at the joints before soldering. These are unnecessary problems and the possibility of deformation. All listed options must withstand pressure of 6-7 atmospheres.
Pipe parameters correspondence table
| PN20 pipes for heating systems, operating temperature 80°C, maximum 90°C, pressure 6 atm., lengths 4 mm | |||
| 16*2,7 | 16 | 2,7 | 0,110 |
| 20*1,9 | 20 | 3,4 | 0,172 |
| 25*2,3 | 25 | 4,2 | 0,266 |
| 32*3,0 | 32 | 5,4 | 0,434 |
| 40*3,7 | 40 | 6,7 | 0,671 |
| 50*4,6 | 50 | 8,4 | 1,050 |
| 63*5,8 | 63 | 10,5 | 1,650 |
| 75*6,9 | 75 | 12,5 | 2,340 |
| 90*8,2 | 90 | 15,0 | 3,360 |
| 110*10,0 | 110 | 18,4 | 5,040 |
| PN20 Al pipes for heating systems, operating temperature 80°C, maximum 90°C, pressure 6 atm., lengths 4 mm | |||
| 16*2,7 | 17,8 | 2,7 | 0,088 |
| 20*1,9 | 21,8 | 3,4 | 0,137 |
| 25*2,3 | 26,9 | 4,2 | 0,216 |
| 32*3,0 | 33,9 | 5,4 | 0,353 |
| 40*3,7 | 41,9 | 6,7 | 0,556 |
| 50*4,6 | 51,9 | 8,4 | 0,866 |
| 63*5,8 | 64,9 | 10,5 | 1,385 |
| 75*6,9 | 76,9 | 12,5 | 1,963 |
| 90*8,2 | 92 | 15,0 | 2,827 |
| 110*10,0 | 112 | 18,4 | 4,208 |
It is advisable to use couplings, rotary fittings, and valves without metal elements. Connections are made only by welding, with both ends inserted into the coupling - this is the most reliable and durable connection.
Control valves: couplings and fittings It is recommended to buy pipes and all components from European manufacturers, for example, Germany, the Czech Republic. Turkish production is still far from perfect: uneven reinforcement layer and wall thickness along the outer and inner diameter.
Installation
If you want to do a high-quality installation yourself, you should start by drawing up detailed diagram indicating not only the locations of the main elements, but other parameters:
- pipe laying routes;
- places of connections, turns and connections;
- pipe diameters;
- number and location of couplings, fittings and valves.
Heating layout in the house The common pipes are chosen with a large diameter, and the radiator bends have a smaller diameter.
Based on this data, you can accurately calculate what you need to buy and which ones. Consumables, tools will be required.
For a private home, the best option for assembling a heating system is considered to be “Upper Spill” - a gravity-flow type scheme. It is simple and can be done with your own hands. There is no need to install forced pumps to circulate coolant fluid. You should not increase the diameter of the common main pipe, this will only slow down the circulation and increase heating costs. Optimal diameter for these purposes - 63 mm.
After purchasing all necessary materials installation takes place. It begins with cutting pipes with special scissors to pre-calculated sizes. Then the pipes are laid out according to the laying route diagram. It is important that the ends of the cuts are 90 degrees.
The soldering apparatus must be placed horizontally on the surface, with a fat-free nozzle selected according to the size of the pipe. Preheat it to 360°C. At the same time, the connecting surfaces are heated in the working hole of the soldering iron. Then we insert the pipe into the fitting.
The parts must be heated to room temperature before soldering. If you solder a fitting brought in from the cold, the structure of the plastic will be damaged due to a sharp temperature change. This connection will not last long.
Soldering points on pipes and fittings must be thoroughly cleaned and degreased, using vodka or alcohol with water 1:1. At the end of the work, you need to make a connection: fill the system with water and check its functionality for two hours at a maximum temperature of up to 90 degrees.
Tools
- scissors for cutting polypropylene pipes;
- electric soldering iron with attachments for welding polypropylene pipes;
- hammer drill for drilling transition holes in walls;
- tape measure, marker;
- pipes, couplings, fittings, adapters, crosses, everything according to the previously compiled list.
Scissors for cutting polypropylene pipes Soldering pipes. Video
You can watch about the mistakes a novice master makes when soldering polypropylene pipes in this video. Also collected here current ideas optimization of this process.
Polypropylene pipes have become actively used for installation heating systems in private homes. Consumers are attracted by the affordable price, ease of assembly, which can be done by hand, high quality and reliability of the work performed. This largely explains their popularity these days.