Soldering 63 pipes. Types of polypropylene pipes

Polypropylene pipes entered our life as a cheap and versatile building material... There are many ways to connect them, but one of the most reliable, practical and convenient is soldering. To perform quality work, you need to know some of the subtleties and tricks, which will be discussed in the article.

Many people miss this moment, but in vain. The quality and ability to connect pipes by soldering directly depends on their type. Here are some of the most important points:

Pipe diameter.

Wall thickness... The heating time of the pipe depends on it. The thicker the wall, the longer it will take to heat the pipe or set the higher temperature.

External or internal reinforcement... It is extremely important stage, which many are silent about. Some pipes are reinforced with metal to increase their strength. This protection can be located both inside the pipe and outside. When working with such pipes, there are subtleties that should be considered.

Also see the table of conformity of markings to the scope of application.

Pipes of the latter type are used to connect plastic pipes wires to metal.

Types of connection of polypropylene pipes

When polypropylene is heated, mutual diffusion occurs - mixing of particles. What is characteristic, when cooling down, the reverse reaction does not occur, the part becomes monolithic. This quality is used when connecting two pipes. Let's consider in what ways the result is achieved.

Socket welding

This principle is most popular due to its simplicity and availability. To connect pipes of the same diameter, a special part is used - a coupling. Its inner diameter is slightly smaller than the outer diameter of the pipes being welded.

Welding takes place by heating and melting the outer surface of the pipe and the inner surface of the coupling. Then the pipe is inserted into the sleeve, the operation is repeated with its other part, and the connection is ready.

Butt welding

This principle is applied in production. To connect pipes with the same diameter, their sides are melted and then joined together. The method is complicated in that it is necessary to ensure perfect and accurate alignment, which is impossible at home.

Another disadvantage is the low strength of the resulting joint, therefore, butt welding is not particularly widespread among the craftsmen.

Cold welding

Cold welding (with glue) is another kind of connection. A special glue is applied to the pipe, which contains a strong solvent. It softens the surfaces of the pipes and they can be inserted into each other.

Big disadvantage this method is the low strength and tightness of the resulting compound. Also, the disadvantage is the drying time - a day or more. In this, cold welding loses to thermal.

At home, it is advisable to use a connection using couplings. We will consider this method in more detail.

Required tools

Before starting work, it is important to prepare all the necessary tools. Here's what you need:

Welding machine- is a heating element with nozzles for different pipe diameters. Some models have a thermostat to maintain the set temperature; it is much easier to work with such devices.

Pay attention to the number of holes for the nozzles. Optimally - 2-3 pcs... This will speed up the process of welding pipes of different diameters.

If you do not plan to use this device in the future, then there are many services where welding machine can be rented for the duration of the renovation. Therefore, you do not have to buy it.

Scissors. You can cut the pipe with a hacksaw, saw or even a grinder, but the quality of the resulting surface will be unsatisfactory. It is much more convenient and practical to purchase special scissors for these purposes.

Gloves to protect your hands - choose thick, poorly conductive heat. This will protect you from burns.

Shaver. The device removes the outer aluminum layer when working with reinforced pipes. The tool may not be useful, depending on the type of material

Trimmer. The device is designed to remove part of the internal reinforcement. This is to avoid water getting between the layers of the pipe.

Degreasing agent. Necessary to clean the pipe from dirt and grease. Ethyl or isopropyl alcohol can be used. It is not recommended to use acetone; it can soften PVC.

Carrying out works

Before carrying out work, it is necessary to prepare work surface- measure and cut the pipes, remove the foil reinforcement, clean the pipe from dirt and degrease. Then follow our instructions.

Assemble the soldering iron, heat it up up to 270 0 С.

Slide the pipe onto the metal sleeve and the connecting piece onto the mandrel of the soldering iron. This will heat up the plastic and become soft.

Remove the connecting piece and pipe from the heater.

Without wasting time, connect the elements to each other with little effort.

Make sure to maintain alignment and avoid distortion.

In most cases, the pipe diameter is larger than the sleeve or fitting. When heated and then joined together, a roll of molten polypropylene is formed, which closes the seams.

Try not to overexpose parts on the heating elements of the soldering iron. Optimal time for different stages installation is indicated in the table.

Consider the following points when working:

If the part cannot be put on the nozzle, increase the temperature by 5-15 0 C.

When working outdoors in frosty weather, lengthen the heating time.

Do not allow parts to twist relative to each other.

A correct and high-quality seam does not float inward, if this happens to you, reduce the heating time. If the parts do not fit on top of each other, then you have not heated them enough. It is necessary to increase the heating time.

Here are a few useful tips that will help you in your work:

Carry out work only in ventilated areas. It heats up the plastic and releases substances, if you breathe them in, then you may get a headache.

Draw a plan for the future construction, this will facilitate further work.

Remember to thoroughly clean the surfaces to be welded.

Completely remove the metal reinforcement at the soldering point. Even a small piece at the seam can damage it.

After the welding machine heats up to the desired temperature, turn off one spiral. This simple measure will help extend the life of the device.

Try not to solder polypropylene pipes in a hurry. Four to six seconds is enough to calmly remove parts from heating elements and combine them according to the instructions.

It is advantageous to mount an autonomous heating system from plastic materials. Most individual developers do this. Modern pipes and polypropylene fittings withstand loads perfectly, you can buy them inexpensively and assemble them yourself.

However, in order for the work to be of high quality, and the communications to work properly, it is necessary to choose the right material, as well as know how to solder heating pipes and follow the safety instructions.

For the installation of heating systems, traditional metal pipes and polymer, with some reservations about the conditions of their operation.

Types of pipes for heating systems:

Steel. Steel pipe without special protective coating in heating systems it is used everywhere in apartment buildings... Steel withstands heat loads well, high blood pressure in the highway. The disadvantage is their susceptibility to corrosion. In conditions of aggressive additives used in industrial heating systems, it significantly reduces their service life. For individual developers, steel materials are difficult to assemble on their own.
Galvanized steel communications. Galvanized materials are more durable than raw steel. But their cost is also higher.
Copper. These materials can be called aristocrats in the construction of heating systems. Copper pipes and fittings are durable but expensive. Their installation requires special skills.
Stainless steel. Stainless steel pipes are expensive materials. They are durable, reliable in operation, then they require special skills for the installation of the pipeline.
Metal-plastic. These are lightweight materials, easy to install. They are rarely used in heating systems, since in such operating conditions they have a short service life.
Polymeric materials. Polypropylene pipes are used for heating. These are inexpensive communications that, if desired, can be assembled by a non-professional. The pipes are not subject to corrosion. With a high-quality assembly, communications made of polypropylene serve for decades. Their disadvantage is the limitation permissible temperature coolant and pressure in the system. However, for household autonomous systems heating pipes made of polypropylene fit perfectly.

Sooner or later, old metal pipes that are leaking have to be replaced. Now it is not necessary to seek the services of a plumber in order to change pipes. Most the best way- these are not metal, but polypropylene pipes.

If it was not possible to successfully connect the plastic pipes, then you can always use couplings to correct the flaws. It is necessary to name the main advantages that polypropylene pipes have:

High strength;
Lack of corrosion;
Ease of installation;
Long service life.

You can always fix poor quality work.

Even if there are no specific skills, you can quickly learn how to do it. To complete the work, you will need some tool:

Directly pipes;
Couplings;
Corners 90 and 45 degrees;
Threaded metal connections;
Clips for attaching pipes to the wall;
Soldering iron;
Heaters for pipes;
Pencil and tape measure.

Before starting the installation of heating or water pipes, you must choose the right one necessary materials... It is best to buy pipes that have the same diameter as the old ones. Then there will be no problems connecting metal area pipes with plastic.

DIY installation of polypropylene pipes

Today, diffusion welding is used to connect plastic pipes. Fittings, corners, as well as couplings and adapters are also used. If polypropylene pipes are installed under the water supply, then you can count on them to last about 50 years. However, polypropylene is suitable for heating for about 25 years.

The service life of pipes is influenced by pressure and temperature regime in system. Although plastic pipes are able to withstand a lot of pressure at the highest temperature. However, if the pressure and temperature indicators are simultaneously high, then this significantly reduces the life of the material.

In order to determine the approximate service life of polypropylene pipes, a table was developed, which indicates the service life at certain temperature indicators and at a certain pressure.

It is worth noting that at home there are practically no large pressure drops. Even if this happens, the pipes will withstand the load. There is no need to worry about the durability of the product.

You can find absolutely any color of polypropylene pipes on the market. The only thing is that the black color of the pipes means that the material is not exposed to ultraviolet rays.

It is important to note that polypropylene pipes that are assembled with a soldering iron cannot be further disassembled. Today polypropylene is used for heating and plumbing systems. Pipes used for plumbing can be connected so that later dismantling can be carried out. Polypropylene can be connected to metal pipe.

In the heating system, for risers, wiring and for connecting the riser to the radiator. Due to its long service life, polypropylene can be used both in latent form(in the wall) and externally.

In total, there are four types of polypropylene pipes:

Thin pipe PN10. Her operating pressure is 1 MPa. Used for underfloor heating. The maximum temperature that the pipe can withstand is 45 degrees. For cold water supply - up to 20 degrees.
Pipe type PN16. It is used for low pressure systems and cold water supply systems.
Pipe PN20. This universal material, which will withstand pressure up to 2MPa. It is used for both hot and cold water supply. The maximum temperature that the system can withstand is 80 degrees.
Reinforced pipe with aluminum foil - PN25. Withstands pressure up to 2.5 MPa. Used for cold and hot water supply. Withstands temperatures up to 95 degrees.

To connect polypropylene to metal, chrome-plated and brass fittings are used.

Types of fittings for polypropylene pipes

Solder couplings (for the same or different pipe diameters).
Squares with an angle of 90 and 45 degrees (for the same or different pipes).
Triple elbow and tee for brazing pipes of the same diameter.
Crosspieces.
Plugs.
Welded-in saddle.
Polypropylene brazing.
Combined couplings with different kinds carving.
Adapters with external thread.
Combined corners with union nut.
Angles for fastening different devices(mixer including).
The water outlet is checkpoint.
Cranes, corner cranes.

It seems that soldering polypropylene pipes is not so difficult. However, the work requires a lot of attention and accuracy. Before you start soldering the material, you need to study well the rules for using the soldering iron, which are included in the instructions for the device.

There is necessarily a point on how to solder polypropylene pipes. If all the work is performed step by step, then there should be no questions about completing the assignment.

The manual contains a table on the pressure and temperature conditions of the pipes. It is important to learn how to solder pipes to fittings. It is imperative to follow all safety rules.

Stages of work

Before starting a new plumbing or heating system, it is necessary to make an example scheme... Additionally, the places for the installation of devices and taps are marked. Next, you need to solder all parts of the system, which can then be combined into larger parts. The soldering iron kit has special legs on which the device must be installed during operation.

To solder vertical pipes, it is necessary to have an assistant, since the process of performing the work is not easy. The assistant will remove the soldering iron and attach the pipes exactly. At that time, it is necessary to solder the pipes.

At the last stage of work, final assembly the entire system. An assistant will help hold all parts of the system in position while the other person solders the pipes.

If the diameter of the pipe to be brazed exceeds 63 millimeters, then a special nozzle is used. The two pipes are connected using a coupling. And all threaded connections are made using sockets and fittings.

For soldering a polypropylene pipe, the diameter of which is more than 63 millimeters, then butt welding is used. This is the most reliable type of connection that can be used.

Soldering with the Fusioterm apparatus

Before turning on the Fuziterm for warming up, it is necessary to collect all the instruments. If two pipes are soldered, then the welding tools are placed in special holes of the machine.

Polypropylene pipes are brazed at a temperature of 260 degrees. The device has an indicator that will show the temperature. Do not solder products until the desired temperature mark is reached. Even when the temperature is already 260 degrees, you still need to wait about 5 minutes and start working.

Socket soldering

If the diameter of the pipes to be soldered is up to 40 millimeters, then an apparatus with a centering device, as well as with special nozzles, is used. When all attachments are securely attached to the device, it can be plugged into the network.

Stages of performing socket soldering

With the help of special scissors, the measured part of the pipe is cut off. If the pipe is reinforced, you need to clean its ends.
When the machine heats up, you can start to solder the pipes. Work is carried out with gloves.
To avoid the curvature of the soldering, it is necessary to carry out all work quickly and accurately.
The adhesion elements are fixed. Any load on the pipe is temporarily excluded.

Only when all the rules of soldering are followed can the ideal quality of the work performed be achieved.

Today, you can easily buy any type of polypropylene pipes. There is a large assortment that differs in price and quality. Remember that pipes are selected that will meet the requirements set for a particular type of system - either heating or ordinary water supply. The temperature and pressure that will be in the system are taken into account.

Don't skimp on buying materials. The polypropylene pipe system is designed for a long service life. For household purposes, you can buy industrial types of pipes. Then you can forget for a long time what a plumbing or heating system is.

After all, industrial-grade pipes have great strength and withstand high temperatures and pressures, which in conventional system almost never occurs at home.

For quality work exists full set tools. If the work is performed independently, then it is not necessary to buy tools for performing one-time work. You can rent a set of tools. However, if you are not sure that all the work can be done independently, it is recommended to contact qualified specialists.

Helpful information ! They have the necessary working skill, as well as a complete set of tools. Moreover, some teams give a guarantee of the quality of the work performed. The installation of the system takes place quite quickly.

Maintenance of polypropylene pipes is not difficult. It should be noted that in climatic zones dominated by very coldy, it is recommended to carry out additional insulation of pipes, especially in basement and in the attic.

It's hard to imagine modern sewerage, plumbing or heating system without polypropylene pipes. They have a long service life, relatively low cost, and most importantly, they are easy to install. Nevertheless, few people know how to properly solder structures from such pipes so that they serve faithfully for many years.

! The instructions presented in this article will allow you to efficiently solder polypropylene pipes with minimal cost time.

Polypropylene pipes have recently appeared on the market. This happened at the end of the 20th century. But in a relatively short period, thanks to the unique performance they were able to gain immense popularity.

Nevertheless, due to the many features of polypropylene, it is not so easy to solder pipes. That is why, in order for everything to go well, you must use the instructions, exactly following the points.

What are the advantages of polypropylene pipes

Of course, polypropylene structures have many undeniable advantages... But in order to squeeze the maximum of its capabilities out of this material, it is necessary to solder according to the instructions. In this case, you can count on such benefits as:

Polypropylene pipes are highly resistant to a variety of chemicals.
Structures made of this material are absolutely corrosion resistant.
Mold and mildew never appear on them during freezing operation.
Polypropylene pipes have low thermal conductivity. But to get the most out of the design, you must strictly follow the instructions during soldering.
Due to the fact that the material has a low weight, polypropylene pipes are easy to transport. At the same time, their installation and soldering also become much easier.
Do not forget about the high environmental friendliness of the material.

The warranty period for the operation of polypropylene pipes, provided that the brazing of the structures is carried out according to the instructions, is 50 years.

Attention ! In order for polypropylene pipes to last a long time, it is necessary to fully comply with the operating conditions, which are detailed in the instructions that each manufacturer adds to their products.

Since the competition in the market for polypropylene pipes is quite high, each manufacturer tries to create the most optimized material structure. It is not surprising that the instructions for use of their products may differ significantly.

Few people know, but polypropylene pipes, provided they are soldered exactly according to the instructions, are suitable for use outside the premises. Also, despite the uniqueness of the manufacturing technology, one can single out important rule, which is mandatory when operating such structures.

When using polypropylene structures, simply follow these instructions: the pressure inside the pipes should not exceed 15 bar. Otherwise, the risk of leakage is seriously increased. In this case, the temperature should be in the range from 0 to 10 degrees. If environment very different high temperatures, then the pressure cannot cross the 2 bar line.

If polypropylene pipes are used exactly according to the instructions, and soldering and installation are carried out in accordance with the current building standards, then such designs are excellent in both hot and cold water supply. Moreover, they are practically irreplaceable when you need to quickly establish water supply in the house.

Polypropylene pipes are perfectly combined with other materials due to the possibility of using inserts from a variety of materials. It should also be noted a huge number of different fittings that simplify installation.

Attention ! Availability additional elements installation allows you to connect propylene pipes with steel fittings and any plumbing fixtures.

Soldering instructions

Equipment and materials

When selecting pipes made of polypropylene, it is of particular importance for what purpose you are going to use the structure. For example, if you want to make a pipeline, then you will need pipes with a diameter of at least 16 and no more than 63 mm. Much depends on the communications already available in the house. You also can't do without such tools:

pencil
roulettes,
tarpaulin rags,
fittings.

But these are only secondary tools. In order to solder exactly according to the instructions, you will need a soldering iron with several nozzles. Special attention you need to pay attention to the power of the device. It should be at least 1200 W. Otherwise, you will not be able to carry out the operation at a qualitative level.

A soldering device with a capacity exceeding 1800 can be used in industrial soldering. If you are a beginner, then this speed can only hinder you. When the soldering iron is too powerful, PP pipe structures can be easily damaged. Here, one instruction won't be enough. Substantial experience is required.

The nozzles that you will use in the process of soldering polypropylene pipes consist of several parts. The main element is the sleeve. It is she who allows you to melt polypropylene pipes according to the instructions.

Attention ! Good quality tips should be Teflon coated.

If you take a standard soldering iron, then it comes with at least six nozzles. They differ from each other in diameter. Some devices allow you to install three attachments at once. Naturally, this has a significant impact on performance.

The absence of the need to change nozzles during soldering can significantly save time and at the same time do everything exactly according to the instructions. The fact is that you cannot change one nozzle to another before the soldering iron cools down.

The best for soldering polypropylene pipes with your own hands are soldering irons equipped with an electronic temperature controller. These devices allow you to select the optimal temperature regime with an accuracy of several degrees. Thanks to him, the risk of damaging the structure is reduced to almost zero.

Attention ! The second most important tool for soldering polypropylene structures, according to the instructions, are plastic scissors.

At what temperature do you need to solder

In order for everything to go according to the instructions, polypropylene structures must be soldered at a nozzle temperature of no more than 260 degrees. If you exceed this mark by at least 10 units, and plastic base will lose its stability. As a result, the element simply will not fit into the fitting. At the same time, he will stick to everything he touches.

However, insufficient heating must also be avoided. It is worth remembering that if the polypropylene structure does not achieve the required viscosity and plasticity, diffusion will become impossible. In this case, the reliability of the connection will be under huge question... Naturally, a service life of 50 years with such a soldering is out of the question.

Soldering instruction

To carry out high-quality soldering of polypropylene communications, follow these instructions:

Cut the polypropylene elements with special scissors. The cut should be perpendicular to the axis.
Select a fitting of the correct diameter. The cold element size is slightly smaller than the pipe size.
Clean the flare of the fitting. Ordinary soapy water can be used as a degreasing agent. Some construction experts recommend using an alcohol solution.
Dry the fitting after cleaning.
Install a suitable tip on the soldering iron.
Insert the pipe into the sleeve with the expectation that the entire surface hidden in the hole will have to be soldered.
Slide the socket of the fitting onto the mandrel.
Maintain a heating time suitable for the pipe diameter of your choice.
Remove the element from the soldering iron and make the connection. At the same time, try not to make turns.

Provided that the soldering of the polypropylene elements was carried out exactly according to this instruction, a continuous sag is formed on the bell. It will resemble a kind of roller around the entire circumference.

After the soldering is completed, you just have to withstand the period until the polypropylene structure cools down. In this case, it is necessary to ensure the details of maximum rest or serious deformations are possible.

Attention ! You cannot solder polypropylene pipes at temperatures below zero degrees. This important condition instructions.

Soldering rules for polypropylene elements

In order to solder polypropylene structures according to the instructions and ensure a reliable connection, try to follow the following rules:

Polypropylene communication elements must be at room temperature before soldering. If it was stored in the cold before, wait until the temperature returns to normal.
The pipe is installed on inner side... Fitting, respectively, on the outside.
The time between removal and connection should be as short as possible.
Do not, under any circumstances, allow water to come into contact with a heated surface. Also try to avoid getting fluff. They can also affect the quality of the connection.

Compliance with these simple rules will allow you to carry out the soldering at the proper level.

Outcomes

Soldering according to the instructions does not represent anything super complicated. It is enough to follow the technological steps and follow the rules that guarantee the reliability of the connection made.

Today, polypropylene pipes are used to install the water supply system. These are easy-to-use, reliable and durable products. Anyone can make a plumbing system of almost any configuration with their help. The main thing is to know the connection rules. This article will discuss exactly this. Here's how to solder polypropylene pipes.

Methods for soldering polypropylene pipes

To connect polypropylene pipes, you can use one of three ways... Namely:

using diffuse soldering (using a special device - "iron");
solder using electro-fitting;
use of a cold seal.

The most common method is diffuse soldering. In this case, various additional fittings and an electric heating device (soldering iron or "iron") are used. This method will be described in more detail below.

When connecting using electro-fitting, special connecting elements are used. They put on pipe ends... After that, electric voltage is applied to special metal inserts in the fitting. As a result of heating the metal, polypropylene melts, and after cooling, a strong connection is created.

This method is rarely used, only in cases where soldering using a "soldering iron" is impossible. Also, large construction companies use this method of creating communications from polypropylene pipes when performing large volumes of work. The fact is that electro-fittings themselves are quite expensive, so it is unprofitable to use them at home.

Another method to connect polypropylene pipes is usage cold welding ... A special glue is applied to desired site... With its composition, the glue mass slightly softens polypropylene. The result is a durable and reliable connection... You can learn more about this method by watching a video from the Internet.

But this method also has its drawbacks. Firstly, cold soldering can be used only when installing communications for the supply of cold liquids (cold water supply). When heated, the connection may lose its tightness. Secondly, the pipes must be firmly fixed. If you use a cold seal in areas where pipeline movements are possible, then the connection (over time) will leak.

To perform the soldering of two polypropylene pipes, you must first prepare the right tools and materials. For work you will need:

Also, before soldering, it is worth see the table, which indicates the time frame of all works. It takes a certain amount of time to heat polypropylene pipes of a certain diameter to the desired state. Also, it takes time for the polypropylene to fix in the joint and cool completely.

As a rule, for the installation of a water supply or heating system, they use small diameter pipes... In this case, it is necessary:

Having prepared all the tools and materials, as well as having learned the necessary time parameters, you can proceed to the soldering work. And how to do it correctly, is described in the next chapter.