Heating a private house with polypropylene pipes bypass the door. We make our own heating in a private house from polypropylene pipes. Stages of work, scheme of the heating structure

24.11.2019

Sooner or later, the owners of suburban real estate are faced with the question of how to properly make heating in a private house without outside help. However, for this you will have to delve into all the subtleties of the system. A common heat carrier for heating residential premises is ordinary water, which reaches the desired temperature values after passing through a special boiler. Although innovative options for heat storage have been emerging recently, they are currently not widely used.

Principle of operation

It is necessary to familiarize yourself with the functioning of the water heating system in order to avoid mistakes during installation by yourself. In addition, you need to be able to find faults in extreme cases, because when you call the master, you will have to say goodbye to a considerable sum of money. It should be understood that water system is a closed network that includes heating devices and pipelines.

Elements

Before you learn how to make heating in a private house yourself, in any case, you need to familiarize yourself with the entire structure. Such systems usually include a standard set of equipment. Heating control is usually carried out by changing the temperature of the coolant.

However, when installing control valves, it becomes possible to change the microclimate in different rooms.

Thermal point, which in most cases is a whole complex of devices located in special rooms. In them, the consumption modes are controlled, the coolant parameters are adjusted, and the like.
Pipelines used to transfer heated fluid to heating appliances. Their wiring can be performed according to various schemes. These elements are installed in an open way or removed under the finishing coating.
Convectors and required to transfer heat to the room in which they are located. The first of them create a more powerful flow of ascending air, but there are certain difficulties in cleaning. As for radiators, their essential part of heating occurs at the expense of thermal radiation.
Temperature controllers very often began to be used in heating systems. They consist of a thermostatic head and a valve. When the temperature in the room drops below the set limit, the gas pressure decreases. In this regard, the opening of the passage section occurs.

Note! Working batteries significantly reduce the level of humidity in the air, and this figure can drop to 20-25 percent. Therefore, it is recommended to use humidifiers or install an aquarium.

Fluid circulation options

In fact, the movement of water inside pipelines can be natural or forced. However, in each of them, the coolant moves in a circle, reaching a certain temperature in the boiler.

Forced circulation is created using a special pump, the power of which can vary. It is with its help that the liquid is set in motion. With this method, it is quite possible to regulate the temperature of individual radiators.

Natural circulation is provided without special devices, and the movement occurs due to the difference between the densities of chilled and heated water. In this case, there must be a sufficient diameter of the vertical risers to form a motive force.

Addition! The first option in the conditions modern world began to be used much more frequently. The only drawback is the dependence of the heating system on the electrical network.

Choosing the right equipment

With the development of technology modern devices to obtain heat, steels are distinguished by a high efficiency and automatic control. They also provide an opportunity to reduce energy consumption to some extent and rationally use resources.

Information about boilers

These devices are closed tanks, where the coolant is heated to the required levels. In addition, there are double-circuit analogues, which, along with this, supply the dwelling with hot water.

With this option, there is no need to purchase additional equipment, which has a positive effect on the family budget.

are used where there is a backbone network of this energy source. In the process, natural gas is burned, the price of which is quite low. As for the installation site, such products can be located on the floor or on the side plane of the room.
Solid fuel boilers- special designs made of cast iron or steel. Their task is to generate thermal energy by burning solid materials. As raw materials, as a rule, firewood, fuel granules, peat, coal and so on are used.
Liquid fuel analogues consist of an insulated body containing a combustion chamber with a network of branched channels. Diesel-powered units can be equipped with a special heat exchanger to increase efficiency.
Electric boilers have many advantages, but from an economic point of view they are considered not very profitable, since electricity is used as a feedstock.
Combined installations capable of operating on several types of fuel. Thus, it is possible to save depending on seasonal phenomena or time of day. The changeover to another operating variant is carried out by replacing the burner or by normal switching.

Attention! The installation of combined structures is practically no different from the installation of conventional devices. Combined models do not require an additional chimney.

Selection of pipelines

The tightness of the heating system will depend on them, therefore, serious requirements are imposed on quality. Their task is not only to maintain the temperature regime. The coolant should not go beyond the closed circuit, which can only be provided by products with good strength characteristics.

Two broad product groups can be distinguished.

Products based on plastics have recently been in incredible demand. This is especially true for polypropylene and polyvinyl chloride. The first of them is characterized by increased resistance to abrasion, and the second is able to successfully withstand chemicals.
Metal pipes have sufficient mechanical strength, so they continue to be a good option. However, they have a relatively low resistance to corrosion. Although the same cannot be said about stainless steel and copper products.

Note! Recently, a composite material has been actively used - metal-plastic, which combines different layers. As a rule, the metal base is inside, ensuring the preservation of the shape.

Heat storage devices

Such devices include convective-radiation structures, including separate sections with channels inside. Heating is carried out by means of radiation or convection. Most people purchase products based primarily on aesthetic preferences, but this approach is not correct.

Sectional radiators consist of sections produced by high pressure casting. They are connected to each other by threaded elements. Sealing is carried out using gaskets made of various materials.
Panel structures are panels rectangular shape consisting of steel sheets welded together. The height and width of products can vary significantly.
Tubular devices are considered the most expensive option. First of all, they are designed for a pressure of 10-15 atmospheres. The possibility of leakage is practically absent due to welded joints.
Plate heat exchangers provide heating with the help of special elements in the form of steel rectangles. Usually their thickness ranges from 0.4 to 1 mm.

Addition! As for the materials used in production, bimetallic products are widely used, which differ from aluminum counterparts in the presence of steel inserts.

Execution of works

After getting acquainted with the constituent elements of their types, it's time to learn how to make heating in country house or in any other dwelling. For installation, you will need a simple set of tools, which is not so difficult to manage. However, when working with polypropylene pipes, a welding machine will also be required.

Boiler installation

This section covers the installation of a wall-mounted gas appliance. This is an easier option. First of all, you should decide on the location, and all requirements must be met. They are usually in the project or in the passport for the heating device.

First of all, a special bar is fixed to the side surface, on which the boiler will be fixed. It is always included in the equipment kit. When working, anchors are used.
Next, the boiler itself is suspended and connected to the chimney. Usually it is made of sheet steel. Training videos often reflect these points.
After that, you can mount the supply pipeline, which is fastened using polypropylene couplings. The other side is soldered.

Important! As for the gas pipe, it is connected to the heating device by the gas service specialists. Therefore, it will not be possible to carry out this event on our own.

Installation of heating radiators

In addition to the heating devices themselves, a certain set of parts will be required: brackets and dowels, four plugs, plugs and a Mayevsky crane, which is a device for releasing air.

In the side of the room, marks are made with a pencil where the brackets will be located. Marking is carried out by level.
Holes of the required diameter are drilled in the wall, which primarily depends on the dowel used.
Next, the necessary elements are connected to the battery. The part is unscrewed from the crane, and the winding is wound onto the thread. A union nut is already put on it, screwing into the cork. Cranes are also screwed on.
Now you should solder the branch pipes with one edge to the tee, and the other to the radiator tap.
After connecting all the elements, the device is fixed.

Attention! When marking, it is necessary to take into account the height of the product from the window sill to the floor. In addition, it must be borne in mind that the brackets must be installed in such a way that they are located between the sections.

Polypropylene pipe welding

In the process of soldering at the joints of the parts, a side should be obtained. Without fail, a uniform passage around the entire circumference is required.
To prevent traces of linear expansions from being visible, a compensator is used, located in an inconspicuous place.
The elements are heated with a soldering iron for no more than five seconds. The temperature is set to 270 degrees.
After connecting the individual parts, you should hold the parts in a certain position for some time, which any welding instruction tells.
Depending on the heat, the sleeve moves to the side, leaving a special mark. Elements need to be squeezed together.
After docking, the two parts are held for about thirty seconds to harden the junction.
The soldering iron itself has two nozzles, each of which is designed for different sides.
The heat-up time can be greatly extended when welding large diameter workpieces.

With the development and installation of elements of the heating system from pipes based on polypropylene, you can do it yourself. Such heating will be of particular interest to owners of private houses and various types of summer cottages that perform home improvement work on their own.

Before proceeding with the installation of heating from polypropylene, it is necessary to consider the main advantages of such a solution, choose a heat source, understand the piping layouts, master the basic nuances of installing elements, and then perform the wiring in accordance with the selected scheme.

Do-it-yourself polypropylene heating

Advantages of polypropylene pipes

Before proceeding with the installation of polypropylene heating on your own, you need to select a suitable source of heating.

Gas

A gas boiler

If there is a main gas pipeline near the house, you need to buy the appropriate equipment. The best option for the arrangement of the heating system made of polypropylene - a modern wall-mounted model of the boiler with protective mechanisms, the necessary pumps and means of automatic control and management.

If desired, you can abandon the traditional chimney by choosing a boiler model with closed camera combustion 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 brought outside through the wall of the building, which is a much more financially profitable undertaking when compared with the arrangement 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, necessary means security, as well as an expansion tank.

The easiest way to handle the installation of such a heating system is on your own.

solid fuel

Solid fuel boiler

If it is planned to use various kinds of solid fuel for heating, it is necessary to correctly 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

Choose the optimal piping scheme for self-installation of polypropylene heating. In the future, you will receive recommendations for connecting individual elements and place them in accordance with the chosen plan.

Single pipe scheme

The easiest way to equip the heating system. In accordance with this wiring method, each battery installed farther from the heating unit will be heated to a lower temperature than 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 a pipe layout is uneven.

In view of this, one should try to refrain from a single-pipe piping scheme.

Collector scheme

Collector scheme

More materials will have to be spent on arranging a heating system according to such a scheme, however, the main operational properties of such heating will be much higher.

The distribution of heat throughout the premises will be carried out fairly evenly and efficiently.

Two-pipe system

The most optimal method of arranging a heating system. Pipe laying is carried out in the floor or in the walls of the house along the perimeter. Two-pipe heating is best suited for heating a home. Therefore, experts recommend giving preference in favor of this particular piping option.

What pipes to use?

During the installation of the heating system from the pipes in question, you may need to connect plastic elements with metal-plastic pipes. When doing this work, make sure that the diameters of both types of pipes fit together.

Connections of polypropylene and metal pipes to each other

Stick to the following pattern:

for connection to metal-plastic products 20x2 mm, use polypropylene pipes measuring 25x4.2 mm;
to pipes made of metal-plastic with dimensions of 16x2 mm, polypropylene pipes with dimensions of 20x3.4 mm must be connected;
polypropylene pipes with dimensions of 32x5.4 mm are connected to metal pipes with dimensions of 26x3 mm.

If the pipes are laid to the batteries in the house from the main pipeline, and the wiring is carried out in accordance with the two-pipe scheme, it is necessary to lay a polypropylene pipe measuring 20x3.4 mm.

Polypropylene pipes

The use of pipes with a more significant diameter does not make much sense. It also makes no sense to use radiator valves larger than 1.2 inches. Therefore, the statement that with an increase in the diameter of polypropylene pipes and thermostatic valves in the premises it becomes 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 has a length of no more than 25 m. 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 should include a maximum of 6 batteries of 10 sections each.

If it is necessary to connect more batteries, it will be necessary to increase the length of the pipes for their installation, which will negatively affect the uniformity of heating of the batteries installed at a greater distance from the heating boiler.

Installation of heating from polypropylene pipes and aluminum radiators

However, if it is impossible to refuse to connect more batteries or increase the length of the pipes, equip the heating system using larger pipes. For example, 32x5.4 mm. Connect to them metal-plastic pipes 26x3 mm.

There is also another solution to this problem - instead of one heating circuit, you can equip two.

Important features of work

Before proceeding with the work on arranging heating, read the basic recommendations for connecting the elements of the system.

To connect the pipes, as already noted, a special soldering iron is used. It is best to do this work with a partner.

Soldering iron for soldering polypropylene pipes

Instructions for self-soldering polypropylene pipes are extremely simple. It is only important to prevent overheating of the ends of the mating elements and 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 already break down when the system is defrosted.

Heating installation guide

Soldering technology for polypropylene pipes

Pre-prepare the system wiring diagram, battery installation, boiler connection. In the future, you will perform all necessary work in accordance with this scheme.

Direct work on the installation of pipes is carried out in a few simple steps.

Table of welding times for polypropylene pipes

soldering machine plastic pipes

First step

Calculate the layout of polypropylene pipes.

Second step

Calculate the length of the segments of polypropylene pipes in each section of the heating system. Install suitable look fitting.

markup

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 heat up to room temperature.

Fourth step

In accordance with the calculated data, mark the pipe cutting points with a marker.

Fifth step

Make a cut with special scissors. Cut perpendicular to the surface.

Cutting PP pipes

sixth step

Wipe the sections with an alcohol solution, remove any dirt present with a dry cloth.

Fitting preparation

seventh step

Take a nozzle for a soldering iron that matches the diameter of the pipe section, degrease it, and then install it horizontally and let it heat up to 265 degrees.

Installation of PP pipes

Place the pipe and fitting into the holes of the heater, select the required heating time from the table and directly heat the elements to be connected. After that, carefully remove the products, insert the pipe into the fitting and hold for the required time. It is better not to touch the connected elements until they have completely cooled down.

Pipe welding

In a similar way, solder all the pipes of the heating system, focusing on the drawings you have. Connect pipes to the heater and radiators also according to the drawings.

To prevent the pipes from sagging in the future, ensure that they are often fastened to the surface with clips. For polypropylene system optimum temperature coolant is an indicator of 60 degrees.

Successful work!

Video - Do-it-yourself polypropylene heating

talkostroyka.ru

Heating schemes in a private house made of polypropylene

The organization of the heating system in a private dwelling implies the possibility of laying communications using polypropylene pipes. Due to the operational and technical characteristics of the products used, a heating scheme in a private house made of polypropylene pipes can be made by an ordinary person, without any special experience in the construction industry. As a rule, the help of specialists is necessary only for completely inexperienced and completely insecure homeowners. However, those who nevertheless decided to carry out the necessary work without outside assistance will need, first of all, heating schemes in a private house made of polypropylene pipes, as well as a small amount of theoretical knowledge and a desire to create comfort and coziness in their own housing.

Construction industry experts assure that in the process of designing a heating system based on a private building, there are practically no difficulties. This makes it possible for absolutely anyone who wants to carry out all the calculations with his own hands, develop a project with drawings, illustrations and other materials that in full reflect the design of the future system.

Graphic diagram of the home heating system

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 should be taken into account that the average person, who is not a professional employee of the construction industry and does not have a full amount of knowledge about the whole variety of products with different operational and technological characteristics, simply will not be able to quickly study the proposed range of products in the corresponding market segment. The parameters that characterize the products of this category are as follows:

logo illustrating trademark manufacturer;
an abbreviation indicating the functional purpose of the product, as well as data on a specific modification;
conditional pressure indicator, which is acceptable for the working environment;
indication of the wall thickness of the goods and its diameter along the outer border;
operating class;
product standard;
the maximum allowable pressure value, measured in bar.

Single-pipe heating system with top wiring

Combinations of these parameters directly determine the operational period of a particular product.

Product categories

It should be noted that not only the diameter and service life determine the applicability of a particular product in the heating system of a private house. There is another criterion that will have to be considered in the process of creating a heating installation scheme from polypropylene pipes. Modern manufacturers offer us products reinforced with aluminum or fiberglass. Actually, pipes improved with a material such as aluminum are relevant in terms of applicability in heating systems. Meanwhile, fiber-enhanced products are widely used. They are the optimal solution for floor heating systems, radiator-type circuits and hot water supply of private buildings. However, it should be borne in mind that those products that are internally coated with fiberglass suggest a slight elongation of the linear format sections under conditions of increasing temperatures and some oxygen permeability.

Lower wiring of the heating system

Components of the heating system

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 - the boiler room. However, in such a situation, it is essential to ensure that the products of combustion can naturally exit the system. This refers to the installation of a chimney. If you decide to equip a small boiler room in your own house, 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 that applies to the level of security of the heating system in any private house.

What needs to be considered?

Before proceeding with direct calculations and the subsequent development of drawings and diagrams, it is important to determine the length of polypropylene pipes. In this case, you will have to take into account a number of factors, the main ones of which are:

parameters of premises in the building;
location, angle and number of pipe turns within the system;
number of pipe connection points;
real number of piers;
such a floor parameter as length.

Remember that ready-made heating schemes in a private house made of polypropylene are presented on the Internet in a wide variety, and therefore you can check the correctness of your own drawings using the samples published on various resources.

Single pipe heating system

Implementation 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 that the coolant provides. So, there are categories of upper and lower execution. If we talk about the return performance, then the liquid within the framework of a functioning system circulates naturally, that is, independently. In the second variant, in order to force the liquid to move through the pipes, it is supposed to use a pressure pump. The second option is perfect for multi-storey buildings, because without a pressure pump it is impossible to make the liquid circulate at more than one level.

The specifics of installation work

Designing the circuit communication system from polypropylene pipes with your own hands, you need to understand that there are certain nuances of installation work. First of all, it is worth carefully studying the possibilities and applicability of such elements as wiring, as well as a radiator. Experts with many years of experience in the construction industry strongly recommend giving preference to a hydraulic modification of heating, which involves two-pipe forced circulation of the liquid, 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 a sufficiently long amount of time.

Tools

Since working on organizing heating from polypropylene pipes with your own hands involves a number of construction operations, it is necessary to assemble an appropriate set of tools and fixtures. 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 greatly simplified and will take a minimum amount of time.

Two-pipe heating system

Of course, one set of tools in the construction business is not enough. 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 refer to those 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-sized equipment, for example, batteries, boilers, columns or expansion tanks, is completed;
in order to divide the existing pipes into a certain number of blanks, it is best to use special construction scissors, clearly observing a ninety-degree angle;
when the mounting elements are mounted, sagging is eliminated, and a sufficient level of installation reliability is also ensured;
any work related to the use of polypropylene products involves a certain temperature regime in room;
using a 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 eliminated with a trimmer;
in order for the connection to be fixed in the best way, it is enough to use a welding device;
after connecting with welding machine it is necessary to give the material some time for complete cooling and, accordingly, hardening.

Example of 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 properly study the methods of laying pipeline systems, the number of storeys of an architectural object, the load exerted 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 heating is planned to be built in extraordinary conditions. Remember that the main thing is to achieve a result, which in this case involves the creation of the most efficient object that can easily cope with heavy loads and last for many years.

Beam layout example

jsnip.ru

Heating from polypropylene pipes in a private house

To date, the rating modern technologies impresses its consumers (SNiP). Thanks to them, you can install, solder heating systems of different variations. Installation of heating from polypropylene pipes can be carried out both with the help of specialists and with your own hands.

Do-it-yourself heating connection in a private house, using a collector and polypropylene pipes, is one of the best options. The welding scheme with this method does not require sophisticated equipment. Professionals especially recommend using a manifold, a polypropylene pipeline, as they increase the service life (SNiP).

High temperature harms the aluminum pipe, it becomes rusty from the inside, but if you use a polypropylene pipeline (fiberglass), it specifications protect against such welding problems.

Marking polypropylene pipes according to GOST for heating, if you do it yourself, has its advantages, but also the disadvantages of welding.

Simple connection - such a battery installation scheme is easy to do with your own hands, and everything can also be done with a little time using a collector.
Large operating stock - more than 50 years. Reliability - since the pipeline is of high quality, water supply problems will not bother you, just like the riser. Leakage excluded;
Low price for materials, connection, riser, collector. Installing batteries with polypropylene pipes in a private house will be much cheaper;
The technology is harmless to nature;
The efficiency of GOST pipes - excellent heat-insulating characteristics: acceptable temperature, the riser is not affected;
Sound isolation. This quality ensures silent operation;
You can install heating from polypropylene pipes with your own hands in a private house inside building structure;
From the decision to choose one or another material, the collector depends on the condition of the riser, 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 fiberglass reinforced piping;
The temperature affects the riser and the performance of the unit. Be sure to make sure that the temperature is not too high, otherwise the GOST piping and insulation may fail.

Polypropylene pipes for heating how to choose

Which diameter to choose

There is a large set of polypropylene pipes, so you need to know their diameter and properties for an error-free connection of PN-10.

The outer diameter is 20, 25, 32, 40-110 mm.
Inner diameter - 16.2, 25, 32, 40 - 90 mm.

A rare type that makes it possible to use pipes at 80 °C temperature. PN-20.

Inner diameter - 10.6, 25, 32, 40 -73.2 mm.
Outer 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 - the temperature during their use is 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 house with your own hands. Feature - two layers of plastic, between which is laid, coated with glue, an aluminum gasket. The aluminum unit has an inner diameter with a dimension of 13.5, 25, 32, 40-50 mm, an outer diameter of 21.2, 25, 32-77.9. 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 cranes are located. Soldering and insulation will be difficult if placed on the outside.

It is possible to make 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 the pipeline (diameter not exceeding 25, 32.63 mm) has two methods:

Socket soldering.
Sleeve welding.

Plus option - threaded connection. For its implementation, you will need fittings equipped with a socket. The pipeline can also be connected if butt soldering occurs - couplings are not required. Fittings - with their correct selection, you can use couplings.

Right step by step installation(SNiP).

For correct installation batteries, there is a diagram - follow it. (1) Ex. 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 scheme of laying polypropylene pipes according to GOST must be calculated; Step 2. Next is the length. It is necessary to accurately calculate the dimensions of the pipes in each place of heating and install the necessary fittings; Step 3. This or that 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. Designated (using a marker) places for cutting pipes; Step 5. Scissors are used to cut PP pipes. Pipes are cut perpendicularly; Step 6. Fittings are being prepared: the elements are cleaned of all dirt with a dry cloth; Step 7

After preparation, we move on to the process. Based on its cross-section of pipes, a fat-free nozzle for a welding machine is taken. Installed and heated horizontally up to 265 °C.

Fittings and pipe enter the heater opening and heat up accordingly to the desired connection. After taking out, the elements are connected.

Wait until they are completely cool

Water heating scheme (SNiP)

Do-it-yourself polypropylene water supply schemes for a private house can be selected based on the stages of economy and comfort - non-volatile, pressure, one- or two-pipe scheme. Serial radiator connection chain - a system with conventional circulation, for heating in a small private house

Wiring examples

Single-pipe wiring Sequential piping (fiberglass) - water passes through the batteries in series. Water enters the last pipeline (battery), the temperature of which is much lower than the initial one. In the event of a breakdown, a radiator problem arises - fixing requires turning off the entire system and turning off the entire radiator. Therefore, the repair is 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 to the riser, and then to the pipeline, evenly distributing heat. From one radiator, water enters the other, thus passing through each.

Also with such a wiring, it is possible to turn off each radiator separately. The system is equipped with two tubes with their own taps:

outlet tube;
Supply tube.

Two-pipe wiring is divided into a pipeline with an upper and lower wiring. Each of them uses their taps, riser, fiberglass differently, and the flow of water from the radiator to other welding elements also 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 is the maximum insulation with aluminum foil, etc. Check the taps, riser, manifold, fiberglass, the condition of the radiator, the 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 how 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 proceed to solder all the elements, whether it be wiring taps, reinforced pipes or wall section.

Two-pipe heating system made of polypropylene

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 due to 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 least 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 high-quality equipment, tools and pipes;
plan the sequence of installation work;
if possible, do all or most of the installation with your own hands.

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 clogging of pipes with scale and rust products. Gradually, people are moving away from these ancient technologies.

Apply heating system with copper pipes very practical, it does not rust, so it is durable, but very expensive. More and more people are leaning towards the use of 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 worked out practically. They are simple, do not require heavy welding equipment, gas cylinders, hoses and transformers. Installation of polypropylene elements can be compared with a children's designer, only for adults. All products and tools are simple and light, in appearance it is intuitively clear what and where to attach. A person who does not have special professional skills can assemble everything with his own hands with a high level of quality.

Installation technologies for polypropylene pipes

The elasticity of the material allows you to better endure the freezing process in comparison with metal products.
Polypropylene parts do not rust and do not have scale during operation. Pipes are neutral to the chemical components of the coolant, do not enter into a chemical reaction with it.
The cost of polypropylene products is significantly cheaper than metal and especially copper.

Disadvantages and methods for their elimination

The main disadvantage of polypropylene pipes is considered to be a large coefficient of expansion. At a coolant temperature of 100°C, 10 meters of the pipe lengthens up to 15 cm. This leads to deformation of the structure. In order to prevent damage, flexible supports are placed and compensation loops are made. Later, foil-reinforced pipes began to be used, which significantly reduced the expansion coefficient. Now the most practical pipes, reinforced with fiberglass: under the same conditions, they lengthen by only 1 cm.
Polypropylene products, especially connecting elements, are inferior to metal pipes in strength. It is not even correct to compare them: with strong impacts with hard objects, polypropylene is deformed and can collapse.

Choice

There are many models of polypropylene pipes. We describe what can and should be used.

A mandatory requirement for the heating system is that only heat-resistant pipes and fittings are selected that can withstand temperatures of at least 80°C.

They must be reinforced; there are three types:

pipes reinforced with PPV foil along the outer diameter;
pipes reinforced with PPV foil along the inner diameter;
PPV pipes reinforced with fiberglass.

Reinforcement of the pipe with foil along the inner diameter

by the most the best option pipes reinforced with fiberglass are considered; they are soldered qualitatively and have a low coefficient of expansion. Pipes reinforced at the outer diameter must be stripped of reinforced foil at the joints before soldering. These are unnecessary problems and the likelihood of deformation. All of these options must withstand a pressure of 6-7 atmospheres.

Correspondence table of pipe parameters

Size, mmOuter diameter, mmWall thickness, mmWater capacity, l/m

Pipes PN20 for heating systems, working 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
Pipes PN20 Al for heating systems, working 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

Couplings, swivel fittings, valves should preferably be used without metal elements. Connections are made only by welding, while both ends are 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: an uneven layer of reinforcement and wall thickness along the outer and inner diameters.

Mounting

If you want to do a high-quality installation with your own hands, you should start by drawing up a 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;
the number and location of couplings, fittings and valves.

The scheme of laying heating in the house

The pipes of the common line are selected with a large diameter, and the outlets to the radiators have a smaller diameter.

Based on these data, you can accurately calculate what you need to buy and what expendable materials, tools will be required.

For a private house, the best option for assembling a heating system is considered to be the "Upper Spill" - a gravity-flow type scheme. It is simple and easy to do by hand. There is no need to install positive boost pumps to circulate the coolant fluid. It is not necessary to increase the diameter of the common line pipe, this will only slow down the circulation and increase heating costs. Optimum diameter for these purposes - 63 mm.

After purchasing all necessary materials installation takes place. It begins with cutting pipes with special scissors according to pre-calculated dimensions. Then the pipes are laid out according to the laying route scheme. It is important that the ends on the cuts are at 90 degrees.

The soldering apparatus must be placed horizontally on the surface, with a degreased nozzle selected according to the dimensions of the pipe. We heat it up 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.

Parts must be warmed to room temperature before soldering. If you solder a fitting brought from the cold, the structure of the plastic will be broken due to a sharp temperature drop. Such a connection will not last long.

Soldering points on pipes and fittings must be thoroughly cleaned and degreased, you can use vodka or alcohol with water 1: 1. Upon completion of work, it is required to make a connection: fill the system with water and check the operation for two hours at a maximum temperature of up to 90 degrees.

Instruments

scissors for cutting polypropylene pipes;
electric soldering iron with nozzles for welding polypropylene pipes;
perforator for drilling through holes in the walls;
tape measure, marker;
pipes, couplings, fittings, adapters, crosses, all according to the previously compiled list.

Scissors for cutting polypropylene pipes

Soldering pipes. Video

You can see about the mistakes of a novice master in the issue of soldering polypropylene pipes in this video. It also contains current ideas for optimizing this process.

Polypropylene pipes began to be actively used for the installation of 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 today.

It's no secret that one of the main characteristics of a cozy home is a constant, comfortable temperature. This is achieved using right choice and installation of a heating system scheme in a private house.

At the same time, heating schemes from polypropylene pipes can be different. Let's analyze each of them separately.

Top or bottom wiring

There is an upper and lower wiring.

Top wiring

Upper wiring - the supply pipeline of the system runs under the ceiling or in the attic and risers descend from it.

From the risers, a connection is made to heating devices. The return pipeline of the system runs along the floor or in the basement.

It is necessary to use this type in case of organizing natural circulation of water in the heating system, as well as in case of impossibility of hidden laying of pipes in the floor or basement.

Important! The top wiring is the only case when the system can be provided without circulation pump. In all other cases, its installation is required!

Advice! If you choose such a system as the main one, consider placing it in the attic expansion tank and an air vent.

The first will constantly stabilize the system from pressure surges, the second will automatically remove air from the system.

Bottom wiring

Lower wiring - the supply and return pipelines of the system run parallel to each other along the floor of the 1st floor (ground floor) or under the basement ceiling.

This type of wiring is used when the calculation provides for an independent supply of coolant to each heating riser.

Classification by the number of main pipelines

Here single-pipe or two-pipe systems stand out

Single pipe system

In this case, the heating circuit from polypropylene pipes is characterized by the fact that the heating pipe is connected in turn to all heating devices.

As a result, the coolant gradually loses its temperature, and the last radiators will be colder. Such a system should be provided in small residential buildings, providing first of all the connection of living rooms, and then technical rooms.

Two-pipe system

works on the principle of flow separation - the supply and return pipelines run in parallel.

This option is applicable for branched systems, where it is necessary to deliver a coolant with the same temperature to each heating radiator. In addition, in the event of an accident, it is possible to turn off only one riser or radiator, while leaving the rest of the system operational.

When using a two-pipe system, it is best to design a one-way connection with a bottom connection.

For this, special fittings are used, which also includes a temperature controller.

By following this rule, you will save on pipes, the connection will be completely invisible, and the regulator will allow you to choose the temperature at your discretion.

Classification by the number of risers

Depending on the number of risers, types are distinguished - vertical or horizontal wiring.

Vertical layout

The classic case, used in most cases when the building has 2 floors or more.

The heating scheme from polypropylene pipes, in this case, is characterized common feature such a system is heating risers that carry the coolant from floor to floor.
Its main advantage is the ability to repair or replace elements of one riser without turning off the rest.

In the figures p.p. 1.1 and 1.2. presented just the case with vertical wiring.

Horizontal wiring

It assumes the presence of one main riser and floor horizontal branches in a single-pipe or two-pipe design.

It is used most often in private residential buildings with several floors, as well as in small commercial buildings.

In addition, such wiring is increasingly used in new apartment buildings, with each apartment having its own wiring.

Horizontal wiring is perimeter or radial

Perimeter wiring

It is characterized by a phased movement along all heating radiators within the perimeter of a floor or apartment.

Connection is made to the central heating riser. In case of repair of an individual heater, it is necessary to turn off the entire perimeter.

In addition, it is problematic to drain water from a separate heating perimeter, because. all wiring is on the same horizontal level.

Both one-pipe and two-pipe versions are available. The advantage of such a system is the possibility of hidden laying of all highways in the floor.

This is the best scheme for a residential apartment - heating from polypropylene pipes is more efficient in this case.

An example of horizontal wiring is shown in the figure in paragraph 3.2.

Beam wiring

Beam wiring, like the perimeter one, is connected to the central heating riser, only the pipelines do not go along the perimeter of the floor (apartment), but in rays to each device, and most often to each individual room.

Their connection together occurs in the comb next to the central riser. In this case, repairs can be carried out by turning off only one heating branch, while maintaining the performance of the rest.

Draining water, as in the case of perimeter wiring, is difficult and is a disadvantage of the system. It is used most often in apartments in new residential buildings. Heating pipes, in this case, are laid on the floor and poured concrete screed, so that in the event of a rush, the repair will be quite problematic.

Summing up the review, I would like to note that each heating system will include several non-mutually exclusive options described.

For example, in private houses, a two-pipe system with horizontal wiring around the perimeter is most often used, in large cottages - a two-pipe system with vertical wiring, in public buildings (schools, hospitals, etc.) - a single-pipe vertical system with top wiring, in new apartments - a two-pipe system with perimeter wiring.

When choosing a system for your home, analyze all the main points - the number of floors, the method of laying pipelines (for example, you can still use it), the thermal regime of each room, the load on each radiator, the possibility of emergency shutdown of parts of the house.

It is better if you call a specialist for help - a heat engineer who is able to perform a hydraulic calculation and show in numbers that a particular system will be more efficient than others to cope with the task assigned to it.

Polypropylene pipes are increasingly becoming a successful replacement for steel and cast iron counterparts from among those previously used in plumbing. Many private houses under construction are now equipped with heating systems, cold water and hot water, mounted on the basis of polypropylene.

In addition, the installation of heating from polypropylene pipes is easy to do on your own. In any case, build plastic system much lighter than metal.

If it is decided to make a heating system or some other of polypropylene pipes, the master, in addition to plastic sleeves, will need additional equipment.

In particular, the following material, equipment, tools will be required:

pipe shears or pipe cutter;
soldering plumbing machine;
foil cutter;
sealing tape (fluoroplastic);
sharp knife;
degreasing agents (for example, Tangit wipes);
required assortment of fittings;
tape measure and marker;
fasteners, screws and dowels.

You should pay attention to the main material - PP pipes, from which it is supposed to create a heating system. Because a heating system made of polypropylene pipes can be assembled on the basis of a material of a different class.

The heating system of a residential building, mounted on the basis of polypropylene pipes, is already a familiar way of everyday life. Practicality and simple manufacturing made polypropylene extremely popular.

The specific choice of assembly depends on the planned operating conditions.

Classification and design parameters

The existing GOST standards (ISO10508) establish the classification of polypropylene hoses, based on which this material can be used in certain operating conditions.

The marking of PP pipes clearly indicates the operating parameters. Taking into account this designation, it is easy and simple to choose the material for a specific configuration of the heating system.

Long-length polypropylene products are divided into 4 classes (1.2, 4.5) according to typical areas of application and operating pressure values (4,6,8,10 ATI):

class 1 (systems hot water up to 60°);
class 2 (hot water systems up to 70°C);
class 4 (floor heating and radiator systems up to 70°С);
class 5 (radiator systems up to 90°С).

For example, polypropylene pipes are required to make low temperature system heating. Then, by the designation on the outer surface of the pipes, we can determine suitable material.

For this case, hoses with the designation - Class 4/10 are quite suitable, which corresponds to the boundary temperature parameter of 70ºС and the permissible limit of the working pressure - 10 ATI.

The industry, as a rule, produces products for general purposes. An extensive classification is supported by manufactured products. In the documentation for such material, it is indicated by the standard enumeration of permissible parameters (Class 1/10, 2/10, 4/10, 5/8 bar).

Each branded product has an application class designation on the outer surface, which actually determines the operational parameters of the future home heating design.

Thus, when counting on making heating in a polypropylene house with your own hands, the main material is usually chosen by the master in direct proportion:

from the planned operational parameters;
from methods of heating the coolant;
from the applied regulation system.

upper values Trab and Pwork;
pipe wall thickness;
outside diameter;
safety factor;
duration of the heating season.

On average, the life of polypropylene should be at least 40 years.

Stages of assembling a system from PP pipes

Consider how to do it, taking into account the rules and regulations of installation. The beginning of the production of the network should be preceded by a careful inspection of all the details of the kit of the future system. Components (pipes, fittings) must be in good condition - clean, without damage.

A set of parts for assembling a heating system from polypropylene products combines various technical components, the use of which in the construction of an engineering project is mandatory

It is allowed to interconnect the polypropylene parts of the system using one of the three types welding:

Polyfusal.
Electrofusion.
Butt.

For the assembly of heating and plumbing system produced not only for welding. They also produce special threaded fittings necessary for the installation of shut-off and control valves with metal cases.

On the polypropylene pipes themselves, threading is not performed either at the factory or at home. They are connected only by hot, less often by cold welding.

Features of installation work

All components used in the installation, in cases of fitting them to size, or scissors specially designed for this purpose.

The work with this tool is accompanied by a smooth clean cut, which is important point to make a good connection.

Polypropylene is cut to size with such a tool - it is customized for a specific section of the future heating system. Pipe cutters are tools of diverse technical execution. Manual technique is usually used for small pipes

If a plastic-to-metal transition is required, only fitting transitions equipped with a pressed brass (nickel-plated) threaded bushing (internal or external) must be used on DHW and heating pipelines. The tightening of such connections is carried out by means of tape keys, if there is no profile for a standard key.

Traditionally, a heating pipeline made of polypropylene, including with your own hands, is assembled by the alloy method. The working set of devices of this kind of devices contains a group of nozzles made for different diameters of a plastic pipe.

It is necessary to select suitable nozzles, install them on the heating plate and fix them with screws.

Polyfusion welding technique and apparatus required for the device heating project based on polypropylene. This tool allows you to quickly and easily weld individual parts of the circuit, create complex technological units

The current regulator of the polyfusion welding machine is set, as a rule, 250-270 ° C. It is necessary to wait for the device to fully warm up. Achievement of the operating mode is marked by a control LED.

Some devices are equipped with a contact thermometer, which determines the heating temperature with an accuracy of one degree.

Polypropylene Welding Procedure

Step by step, all actions are usually unfolded as follows:

Measure and cut off the required piece of sleeve.
Using a sharp knife, chamfer the working end at an angle of 30-40 °.
Measure the area where the sleeve enters the fitting and mark the boundary with a marker.
Also leave axial marks on the parts in order to prevent rotational displacement.
Using a cutter, remove the plastic (top) and aluminum (middle) layers on the pipe section of the joint.
Degrease the working (welded) surfaces with a special agent.
Start the heating process.

The fitting is put on the board with the nozzle first, taking into account the thicker size of the walls of this part compared to the pipe. The fitting should fit snugly on the nozzle body of the welding machine. If there is free play (backlash, dangling) - the fitting must be rejected.

The procedure for welding two separate components - a polypropylene pipe and a fitting - provides for a clear order of supply of parts for melting. The fitting is always sent to the fire first.

Next, the processed end of the polypropylene pipe is inserted into the other nozzle. The tightness of the fit here must also meet the criterion of uniform contact around the entire circumference. Both parts are kept on the heating plate for the time indicated in the table:

Part diameter, mm	Heating time, sec
16	5
20	5
25	7
32	8
40	12
50	18
Part diameter, mm	Fixing time, sec
16	6
20	6
25	10
32	10
40	20
50	20

After the control seconds, the parts are removed from the nozzles and connected by a smooth uniform entry of the pipe into the fitting (excluding axial displacement).

The pipe enters the fitting cavity up to the marker mark. However, the connection is not made all the way. Leave an internal gap of about 1 mm.

After the place of joining of the parts must remain motionless (fixed) for at least 20 seconds. During this period of time, the molten plastic hardens, forming a strong hermetic connection.

To achieve full strength, the welded assembly must be kept without load for at least 1 hour. This technique is used to assemble the entire heating system, making short sections and then combining them into nodes and main lines.

Accounting for linear expansion (compression)

Fluctuations in external and internal temperatures inevitably lead to linear expansion or contraction of polypropylene. These features should be taken into account in the process. If characteristic linear changes pipes of the heating system are not adequately compensated, this condition results in a reduction in the life of the entire assembly.

Compensation for linear expansion for polypropylene products is achieved due to the flexibility properties of the material itself. It is only necessary to correctly lay the trunk lines. Proper styling- this is to ensure the freedom of movement of the pipeline within the value of linear expansion.

The diagram shows an example of linear expansion compensation for a polypropylene pipeline. The method is the optimal placement of support brackets. The correct sequence of fixed (NC) and movable (PC) brackets helps to compensate for shift

Linear expansion can also be compensated by prestressing the pipeline. This approach shortens the length of the extension. In this case, the direction of the prestress is directly opposite to the linear expansion.

Peculiarities of trunk installation

Laying of polypropylene lines is carried out in accordance with the standards (GOST 21.602-79; GOST 21.602-2003), which determine minimum slope line towards the lowest point at 0.5%. At the same time, at the lower point, a drain assembly with a drain valve is required.

Pipelines must be divided into sections with the possibility of cutting off these sections using shut-off valves, for example, in case of an accident. Control valves and stopcocks before their installation on the site must be checked for operability and quality of closing / opening.

When installing a heating system with gravitational movement of the coolant, an important technological criterion is the slope. Properly executed slope is the key to efficient and productive work of the structure

When mounting risers, special attention should be paid to fixed supports and the construction of a correct linear expansion compensation scheme.

The required riser compensation parameter can be achieved in two ways:

Movable supports.
Compensation loop.

As a rule, only the first method is used for a variant of a heating device within the framework of ordinary household real estate. Fixed supports are placed on the riser in the area under and above the tee or in the places of the coupling pipe connection. Such fastening excludes subsidence of the riser.

Heating system lines must be insulated, including fittings and stop valves. The exception is pipe sections laid directly in the living room, in fact, being a continuation of heating radiators. It is convenient to use polyurethane foam insulating pipes as insulation.

Conclusions and useful video on the topic

Using the example of a heating radiator piping, the process of processing and soldering polypropylene products using special tools is shown.

The appearance of pipes made on the basis of polypropylene, and their application in practice, can significantly reduce the complexity of installation on the device of heating systems, including with your own hands. This modern material opens up more opportunities for owners of private houses, where heating systems are powered by internal sources - gas, electric, wood-burning boilers.

Tell us about your own experience gained during the assembly of a pipeline from polypropylene pipes. Share with site visitors useful technological nuances not covered in the article. Please write comments in the block below, ask questions, publish photos on the topic of the article.

Polypropylene pipes are widely and successfully used for the installation of various engineering systems already for many years. Today, this type of communications has almost completely replaced the classic installation of systems using metal pipes. This is due to their excellent performance and availability. And if a few years ago polypropylene pipes were widely used in urban buildings, at the moment they are widely used in private households. This article discusses the main nuances of the selection and operation of heating systems made of polypropylene pipes in private houses.

Advantages of heating systems based on polypropylene pipes

Consider the main characteristics of polypropylene pipelines, thanks to which they rapidly replaced classic metal pipes.

1. Profitability. Due to the simple technological process and the cheapness of the raw materials used, polypropylene products are significantly cheaper than metal ones.
2. Easy to install. Possessing a specialized tool - a soldering iron and basic skills in its use, it will not be a difficult task even for an unprepared person. It is quite possible to do all the work with your own hands in a couple of days.
3. Long service life. This indicator is due to the durability and reliability of a material such as polypropylene. High-quality products are not subject to chemical influences, aggressive environmental influences and temperature deformations. The design features of pipelines made of polypropylene practically exclude the formation of deposits and scale in the conductor channel.
4. Excellent soundproofing and heat-insulating performance. Using polypropylene communications in a private house, you can forget about such things as the noise of the coolant in communications, and due to the low coefficient of thermal conductivity, such products cannot be burned.
5. High coefficient of plasticity and elasticity. This characteristic of polypropylene pipelines is especially relevant in private homes, where there is a high risk of "defrosting" of the heating system in extreme cold. Products made of polypropylene practically exclude damage to communications when the coolant freezes, which, however, does not protect radiators used for heating from failure.

It is worth noting that there are practically no shortcomings in polypropylene pipelines, they rather relate to the human factor: it is necessary to purchase products from trusted suppliers and observe the recommended temperature regime during operation. Also, polypropylene is sensitive to mechanical stress and the use of products based on it in rooms with significant risks of damage (workshops, shops, welding) is impractical, and sometimes unsafe.

Choosing the type of pipes based on polypropylene for a private house

The heating system in a private household has some differences from that in an apartment building. The main ones are the following:

Possibility of independent design with changing the finished project "on the go", which opens up great opportunities for the implementation of various installation schemes.
Low main pressure and almost complete absence of water hammer.
The choice of coolant in the system is determined by the owner of a private house. It is possible to change the coolant at any time.
The short length of the pipe line eliminates air pockets.
Installing a circulation pump will increase the flow rate of the coolant and ensure a more even distribution of heat throughout the building.

The modern industry offers the widest selection of types and sizes of polypropylene pipes. In order to correctly select the necessary option for a particular private house, we list the most common polypropylene pipes offered on the market, indicating performance characteristics.

Pipe PN-10

Polypropylene conductors of this type are produced with an outer diameter of 20 - 110 mm and an inner diameter of 16.2 - 90 mm. The wall thickness of the material in this case ranges from 1.9 to 10 mm, depending on the diameter. They are made of thin-walled polypropylene, most often single-layer, which has a working temperature of up to 20 C and a pressure of up to 1 MPa. Available in 4 meter lengths. Such pipes cannot be used in heating systems, they are intended for household needs by filing cold water over short distances without line pressure.

Pipe PN-16

This type of product is characterized by thicker walls compared to the above option. At the same time, the outer diameter is identical to PN-10 products, but the inner one is slightly smaller - it varies from 14.4 to 79.8 mm. The operating temperature range of the coolant is from 0 C to 60 C, and the operating pressure is 1.6 MPa. The release form is 4 m segments. It should be noted that this type of pipe is rarely used in heating, since the upper limit of withstand temperatures of 60 C is low for heating systems, and the cost of such products is comparable to the cost of more functional products. It is recommended to use such conductors for the installation of underfloor heating, where the operating temperature is usually not higher than 50 C, or for hot water supply.

Pipe PN-20

Products are characterized as universal conductors used for heating and hot water supply. However, when used in heating mains of a private house, it is recommended to install only return water from them, since the temperature of the supplied coolant from an individual heating boiler, unlike the main central heating, can reach up to 100 C, and the maximum operational for this type of conductor is 80 C. They have a two-layer structure, which provides increased strength and ductility. External diameter - from 16 to 110 mm, internal - from 10.6 to 73.2 mm, with a wall thickness of 1.6 - 18.4 mm. As the name suggests, the maximum working pressure is 2 MPa. The use of this product is advisable for arranging underfloor heating, heating greenhouses, hot water supply, when installing a heating main in apartments with central heating.

Pipes PN-25

They are the best for arranging heating systems in a private house. Due to the two-layer design and the presence of aluminum or fiberglass reinforcement between the layers, it has improved performance. Such products are able to withstand a constant temperature of the filler up to 95 degrees, have improved strength characteristics, high thermal insulation properties. The outer diameter of PN-25 pipes varies from 21.2 to 77.9 mm, the inner diameter - from 13.5 to 50 mm. The release form is standard - segments of 4 m.

The inner reinforcing layer reduces the expansion coefficient of the pipeline, which reduces deformation microdamages of polypropylene and increases the service life of the product.

Attention! Before starting work on the installation of a line from polypropylene pipelines, it is recommended to practice soldering. For this, it is worth buying the most cheap material, cut it into segments that need to be connected to each other in various variations using couplings and fittings.

Selection of the required diameter

When planning and calculating the heating system in a private house, in addition to the type of pipeline, it is also necessary to correctly select its diameter. There are a few fixed rules here:

The greater the total length of the pipeline, the more significant should be the diameter of the conductor used.
The diameter of the pipeline must be the same along the entire length. Exceptions here may be taps to heating appliances.
If there is a circulation pump in the system, a decrease in the diameter of the line is allowed.

Thus, based on these requirements, experts recommend the following types of pipes for use in heating systems of private households: with a line length of not more than 50 m and the presence of a circulation pump, it is necessary to use a PN-25 type pipe, with an inner diameter of 20 mm to 30 mm, in the absence of a pump - from 25 mm to 35 mm.

If the total length of the line is more than 50 meters, then it is necessary to use a pipeline with a large internal diameter, observing the rule - with an increase in length by 10 m, the diameter increases by 2 mm. In this case, it is allowed to use pipe segments with a diameter 25% less than the diameter of the main pipeline as supply lines to heating devices.

When used, it is possible to use pipes of the PN-20 type for the return line, which carries out the removal of the coolant.

Important! To connect the heating line to the heating boiler, you must use pieces metal pipe not less than half a meter long. This will prevent damage to polypropylene products from exposure to high temperatures.

Applicable wiring diagrams

The standard frequently used schemes for connecting heaters to the main, used for the installation of polypropylene pipes, do not differ from those of other types of materials. Here it is possible to classify schemes according to three parameters:

According to the location of waterways.
By the number of stands.
By the number of pipes for the circulation of the coolant.

Options for implementing the scheme for the location of the waterway

There are 2 types of coolant supply:

1. Top eyeliner. In this case, the water supply system, through which the hot coolant is supplied, is located on top. This can be an attic space or fixing on the ceiling under a layer finishing materials. The lower, return channel is laid under the floor or in the basement. The heaters are fed with coolant through vertical risers. The advantage of such wiring is that there is no need for a circulating boiler, which will be relevant if a private household is located in an area with power outages.
2. Bottom eyeliner. In this case, water supply and drainage is carried out through pipelines located at the bottom of the room, in the floor, or in the basement. The advantages of this system are savings on materials and uniform heating of all heating devices, a significant drawback is the impossibility of implementation without the use of a forced circulation pump.

Wiring according to the number of risers

Depending on the number of risers supplying hot coolant, the following options are possible:

1. Scheme with one riser. This option is suitable for use in small two - three-story cottages, when the area of \u200b\u200beach floor is relatively small. The water supply here is carried out by one riser to all floors, from which further wiring is carried out to all rooms of the floors.
2. Scheme with several risers. In this case, several risers are installed, which feed one radiator in separate rooms on each floor. The risers are connected to the boiler by separate lines. This scheme perfect for large houses. Due to the autonomy of each riser, in the event of a breakdown, there is no need to turn off the entire system, it is enough to close one riser to which the damaged element is connected and make repairs.

Wiring by the number of pipelines

Here, two options for mounting the highway are possible for implementation:

1. One-pipe line. With this scheme, the coolant is supplied to the heating devices through one pipeline, in series, from device to device. A significant disadvantage of this scheme is the sequential cooling of the coolant, as a result of which the heaters that are located at the end of the line will not warm up well. Therefore, the use of this method is advisable in small houses with no more than three heating radiators.
2. Two-pipe line. Here, the coolant is supplied through the primary pipeline in parallel to all radiators, and the outlet is carried out through the return channel. Due to this, the temperature of all radiators is the same and can be adjusted individually, with a special regulator. The advantage of the system is the possibility of shutting down one of the heating devices in case of its failure, without stopping the entire system.

Thus, when choosing a scheme for installing a heating pipeline in a private house, it is worth taking a closer look at the option with one riser and a two-pipe system on each floor and a lower connection with a two-pipe scheme in the case of a one-story building. These methods are the most practical, maintainable and economical.

Heating system installation

Before starting work, you need to thoroughly prepare:

Decide on the scheme of the future heating system, the locations of radiators, expansion tank, boiler, taps, etc.
Purchase all necessary equipment.
Purchase consumables, which, in addition to pipes, include various fittings, tees, taps and other elements, depending on the chosen scheme.
Buy or rent a tool: scissors for polypropylene pipes, a soldering iron with interchangeable nozzles, a perforator, a marker, a tape measure, etc.
Practice soldering pipes on scraps of material.

After that, you can start installation work be sure to follow some guidelines:

1. Work must be carried out at an air temperature above +5 C. Otherwise, the polypropylene hardening process will be very fast, and the connection may turn out to be fragile.
2. It is advisable to treat the joints of polypropylene products with an alcohol solution.
3. To determine the time of heating and soldering products, you must use a special reference book

Following simple rules in the process of choosing polypropylene products for installing a heating system in a private house, choosing the right heating scheme and following the instructions during soldering, you can do all the work yourself. At the same time, the quality and accuracy of the work will depend only on the owner of a private house.