How to solder tap pipes. Types of polypropylene pipes. Operating instructions. Tips and rules. Pipe soldering in complex areas

When installing new polypropylene pipes, instead of outdated metal systems, there may be a situation where the pipe connection with welding must be performed in places that do not quite comply with the conditions for the operation of such an operation.

Therefore, to independently update the pipeline requires certain knowledge to help organize welding of polypropylene pipes in an uncomfortable place using auxiliary tools for this.

Tools for work

Perform a high-quality connection of pipe elements helps a special soldering iron for pipes from polypropylene and a set of teflon nozzles. Using a soldering iron, you can do without much effort to combine the welding on any pipe of the pipe. With the help of nozzles, you can connect pipe elements with different diameter.

In addition, soldering polypropylene pipes in hard-to-reach places implies the presence of the following tools:

Fixture for cutting pipes from polypropylene (most often cutter comes with a soldering iron).
A solution that allows to degrease the place of the soldering.
Set of connecting elements.

It is also necessary to prepare a roulette, a ruler and a pencil, as well as a corner and a knife. In some cases, you may need a rag.

Methods for welding polypropylene pipes

Pipe soldering in hard-to-reach places can be performed in different ways depending on the working diameter of the pipes:

The method of butt welding connects pipes having a wall thickness of at least 4 mm and a diameter of up to 50 mm. In everyday life, this way is quite rare.
The onset method is used when connecting pipes with a diametrical cross section to 40 mm. A special welding mechanism is required to work, equipped with a centering device.
With a truck solder to a pipe at an angle of 90 0, a special fracture saddle is welded by butt joint. The saddle is drilled and a piece of pipe is welded to the location of the pipe, getting a T-shaped adapter at the output.

Welding in hard-to-reach places

Wash the hard-to-reach areas of polypropylene products is much more complicated than rectilinear runs. To create favorable conditions for working in such places, the application requires a sufficient amount of effort.

The "uncomfortable" places can be attributed:

Space under the ceiling.
Corners of the room.
Cramped conditions for the placement of the soldering iron.

Performing welding of polypropylene pipes in hard-to-reach places under the ceiling, you need to cook the place where the welding machine will be placed during manual formation of the connection. For this purpose, you can invite an assistant or hang the device for a special hook prepared in advance.

In the case of pipes, a special reception is used very close to the wall: the direct and response part of the formed docking alternately warm up the soldering iron. At the same time, heating should reach such limits so that the first heated area does not have time to cool down while the response part is heated.

Features soldering in the corners

To solve the problem, how to solder polypropylene tubes in hard-to-reach places, for example, in the corners, you need to know the features of such compounds. The docking of the pipe elements in the corners of the room is carried out using blanks, cropped at an angle of 90 0. It is important that their ends be carefully cleaned and treated with degreasing means. The use of special angular adapters and fittings contributes to the formation of smooth transitions on pipe elements with an angular connection.

The formation of angular compounds on pipes, located at a short distance from the wall, is also performed by sequential heating of the straight and response. Special attention in this case should be given to the depth of entering the pipe element into the body of the angular part. To ensure high accuracy, it is necessary to make the corresponding marker or pencil mark.

Solving the issue of how to solder polypropylene pipes in hard-to-reach places requires a careful relationship and accurate fulfillment of all actions. Docking elements that have even a minor defect are subject to a mandatory replacement for new parts. According to experts, when performing connections in hard-to-reach places should not turn off the power of the welding machine, better if it is always on.

Soldering of polypropylene pipes in hard-to-reach places: how to solder, rules and welding methods

Polypropylene pipes in hard-to-reach places

- The process is technically simple, but requires accuracy and compliance with increased security measures. In the opposite case, you can reduce the service life of the polymer system several times.

Polypropylene pipe soldering sequence

How to solder pipes in hard-to-reach places

When welding nodes and connecting elements in hard-to-reach places, always start with a more complex area. For soldering in the most difficult sites - use American.

To do this, you will need basic tools for soldering pipes from PPR (polypropylene):

apparatus for welding (iron or soldering iron) with nozzles of various diameters (electrical flow or rod apparatus);
special scissors (pipe cutting). Crop pipes can be both grinding / hacksaw, but after sure to clean the edges;
the carrier or stripping / shaver (can not be used with a fiberglass reinforced pipe).

In the installation process, you will also need the keys for screwing, perforator, Bulgarian and other tools.

Please note that, regardless of the "soldering iron" used, the technology implies the connection of pipes through the elements:

Technology soldering electromobate

ElectromoFT - the most common machine for soldering. "Iron" is easy to use, but has its own technology:

Connecting a welding machine to the power grid, make sure that you have enough space for the "maneuvers" - nothing should interfere. Plus the environment in which you carry out work should not be below +10 ℃, otherwise you will not have time to qualitatively fix the elements.
"Soldering iron" must be arranged on a solid surface, away from easily flammable items.
First, it is recommended to weld large chains / knots of pipes that are actually mounted in the walls, and the rest of the connections are already soldered on weight. To distribute the action plan - make a drawing.
Check if the coupling is jammed before heating. If so, then the proper connection will not be, and this place will flow. Therefore, items should be replaced. To exclude incomprehension, you need to choose pipes and connections of the same manufacturer.
You can cut the pipe to the desired length using special scissors, and the reinforced pipe is more convenient - the grinder. It is necessary to cut exactly at an angle of 90 degrees.
Slide the surface of the pipe to eliminate irregularities.
Dress the desired nozzle to the device. Nozzles are determined according to the diameter of polypropylene pipes.
Install the temperature of the "Iron" at 260. This parameter on expensive soldering devices is determined automatically by the instrument itself, but only after specifying the diameter of the pipe from the PPR. When the "soldering iron" completely warms up - the warning light will light up. Cheaper devices are heated in about 15 minutes.
We put on the nozzle fitting and pipe. According to the book guide, it is done alternately, but in practice it is difficult to turn. Therefore, wear better at the same time. For convenience, it is necessary to kneel and hold the "Iron" between the legs.
Heat fitting and pipe is needed depending on the diameter of the material:
- 16 and 20 - 5 seconds;
- 25 and 32 - 8 seconds;
- 40 - 12 seconds.
Insert the PPR tube to the nozzle is needed to the end. If you are not sure, you can make a pencil as much as it should enter the pipe.
Do not twist and do not rotate the elements when heated - the soldering will be low-quality. But small (very minor) turns are allowed.
After heating, the pipe is removed, and then the fitting. Elements are connected and fixed for 20 seconds (motionless!). After removing from the instrument, you have no more than 5 seconds on dusting, after this time, the soldering can be poor quality.
If you are welding three or more elements attached to the pipeline system (for example, you need to cut the already mounted pipe and insert the fitting-crane):
- it is necessary to cut the pipe, previously noting the location of the cut;
- clean the items and wipe the degreaser / dry cloth;
- check that the crane does not interfere with when closing / opening;
- first we solder the fitting and the pipe on one side (with the right);
- turning to a chain spike on the other hand, you must first warm up the tap (and for 5 seconds longer), and then heat the pipe (3-4 seconds less);
- docile elements;
- since the chain is on the weight, for the convenience of heating fitting, press up on the "iron" with rebuilding materials (for example, scissors).
It is possible to fix the PPR pipe horizontally using the clips, and vertically by means of a pipe clamp.

Note that when overheated, the passing holes of polypropylene pipes and fittings are planned, and when underheating - elements are not connected as follows and will flow.

Rod apparatus for welding polypropylene pipes

The rod apparatus for welding is used mainly for hard-to-reach places, as well as damaged (drumsion) of pipes. The device has a more convenient design for direct work at any angle and weight.

Manufacturers have developed a special repair kit when drilling holes in the PPR tubes. It includes repair polypropylene rods and special nozzles. In case of damage to this type, it is necessary:

Put on the "soldering iron" a special nozzle (standard for repairing pipes of all diameters).
Turn on the device and warm up to 260.
The drilled hole in the pipe must be expanded by a 10 mm diameter drill.
Clean the surface from burrs and deposited parts.
On the repair straighten, make a depth to which it will be inserted into the repaired pipe. Elements should not be docked.
Clean the surface of the repaired pipe with a degreaser or alcohol, let me dry for a few minutes.
Heat the surface of the repaired pipe and the rod inserted simultaneously for 5 seconds.
Without turning, connect the items between themselves and remove the rod residue.

The soldering method of the rod apparatus in standard conditions does not differ from welding with other analogues.

Welding and installation of a separate part of the pipeline system

When installing a separate part of the pipeline (node \u200b\u200b/ highway):

measure and cut the required pipe size;
cut the chain on the fixed surface, and then install in the planned area. That is, first we solder the node, and then we connect it on the weight with other sites;
in the most hard-to-reach places, use American.

Spike node on weight

We solder pipes on the weight:

determine which side is the most difficult for spike on weight and start with it;
the pipe and the connecting element / node are initially cooked on one side by standard standards, observing the set time for soldering;
then (on the other hand) the connecting element is heated at first, and for a couple of seconds, and after after the pipe is heated for a couple of seconds less than usual (in fact, you give time to heating the pipe with a connecting element).

It is difficult to solder on weight, therefore, it is recommended to push the elements to the elements with screwdrivers (special scissors, etc.). Better for soldering on the weight to invite an assistant.

Installation of the paved node

First of all, the necessary node on a solid surface is cooked. When it is ready, go to a connection with already mounted pipes:

make a pencil sections of a cut on a running highway. It is not necessary to cut a plot under the entire fit or other connecting element. It is necessary to take into account that the pipes will be inserted into it (for example, a 10 cm measuring faucet, the holes for connecting pipes occupy 4 cm in general, then it is necessary to cut 6 cm pipes);
cut the installed pipes on both sides with special scissors;
clean the pipes with a degreaser, dry from water;
check out the elements;
start welding a node. Start with a more difficult place.

To solder a node with other circuits of the pipeline is difficult, so without help you can not do.

Before direct installation, it is necessary to prepare the shoes. This is performed using a circle of concrete installed on the grinder or other tools. Follow the surface where the shoes will be. Cuts are carried out at a depth of about 2-3 cm (take into account the diameter of the pipe) and are knocked out with a hammer, a chisel, a perforator, etc.

Wellect the necessary knot outside the shoes, and then wind into the holes.
To eliminate damage, the PPR tube can be closed into construction tape, but a shell / insulation of foamed polyethylene is recommended for complete protection.
When moving from metal nodes, to connect, use a transitional clutch or an American.
So that the highway does not move when expanding the pipes - secure special knee structures (metal surface with clamps). The item first is attached to the surface of the wall and is screwed with nuts, and then fixed with the pipeline.
Fix the pipes using a clip or pipe clamp, especially in the most unreliable places.
Get holes.

Installation of polypropylene pipes in hard-to-reach places with their own hands

Transitional coupling

To connect nodes from polypropylene, especially in complex places, used primarily "American" (especially angular execution). This clutch easily relics the necessary cuts of pipes when the chains are already mounted in a shared pipeline. Plus, a plot with this detail can often disassemble and collect.

"American women" profile is a dusting of two pipelines or a transition to a different size in diameter. On the one hand, the detail is screwed / soldered / welded, and on the other - the collapsible connection of the American (differently, a quick disconnect thread nut).

The part is designed for piping pipes from the PPR and is used for the supply of cold or hot water. The coupling withstands the pressure of 25 atmospheres and the temperature of 95 (depending on the model, it is less and more), and also produced in various diameters (the greater, the higher the weight and price of the part).

For the connection, "American women" of the following types are chosen:

with internal thread;
with external thread;
coupling with outdoor and internal thread.

By the type of design, the American coupling happens:

By type of threaded joints:

flat (cylindrical);
cone (creates the highest quality connection).

Most popular for installation in hard-to-reach corner "American".

Installation of PPR pipes with a clutch-American

When installing an "American" with a metal node, gaskets are needed / seals:

polyurethane;
paronite;
rubber;
teflon thread or paste, etc.

Plus, to twist the coupling in the installation process, a hex manner is needed, a tension key (normal or with a ribbon) or a cylinder cylinder.

Mounting Coupling Methods:

"American" for the PPR is welded / soldering. Connection method Standard - "soldering iron".
Deverted to a tool on a metal part. When tightening seals are used.

Video clip of the installation of pipes using transitional coupling

Installation or repair of polypropylene pipes does not have large difficulties in operation. The main thing is to adhere to the temperature regime when the elements are heated and the time of bumps. Plus, when repaired, it is necessary to start with more hard-to-reach places. Do not forget to fix the line by clips or other details so that the pipeline does not be reduced by increasing pressure.

Soldering of polypropylene pipes with their own hands: video, welding in hard-to-reach places

Soldering of polypropylene pipes with their own hands - the process is technically simple, but requires accuracy and compliance with elevated security measures. In the opposite case, you can reduce the service life of the polymer system several times.

Recently, traditional cast iron and steel pipelines are intensively replaced by more modern products of the chemical industry - polyvinyl chloride and polypropylene and pipes. But new materials require other technology connecting pipes, and the most effective in this case is a soldering.

Soldering polypropylene pipes with their own hands

Note! The soldering temperature affecting the quality of the connection depends on the size of the products - this can be seen in the table below.

Stage 1. Selection of propylene pipes

Step 1. Selecting one or another source material directly depends on future destination. The main criterion of division is the maximum permissible temperature of the working environment. In this regard, it is distinguished by pipes for hot, cold, as well as mixed water supply.

Polypropylene Pipe Fittings

To determine the exact number of necessary pipes and fittings, the room is measured and its approximate plan is drawn up. The latter is indicated by the size of the future highway and all its elements.

After buying all components, you can proceed to the next step.

Stage 2. Required equipment

The principle of the soldering is to heat the ends of the connected pipes to the desired temperature and the subsequent fixation. To do this, you will need a special device - the welding machine.

It can be three types:

with manual control - used for pipes Ø1-2.5 cm, various products are required for different products;
semi-automatic device
automatic models.

The design of the soldering iron for polypropylene pipes with a platform in the form of a cylinder

Soldering iron for polypropylene pipes

In addition to the apparatus itself, it will take:

Polypropylene pipe cutting scissors

Stripping for polypropylene pipes

On the choice of nozzles

Plastic Pipe Solder Nozzles

Heating nozzles must correspond to the cross section of the connected pipes. To do this, pay attention to certain parameters:

strength;
preservation of shape at temperature differences;
thermal conductivity.

Most welding machines are compatible immediately with several different nozzles, which is extremely convenient when equipping complex highways.

In each nozzle, there are two ends at once - one is intended for heating the outer surface of the products, the other for the inner. All nozzles are covered with teflon spraying, which prevents the molten spraying. The sizes of nozzle fluctuate between 2 cm and 6 cm, which completely coincides with the common and cross-sections of the pipes.

Soldering polypropylene pipes with their own hands

When the plan is drawn up, and all components are purchased, it remains only to carefully remove the room. Particular attention should be paid to dust, because even the smallest particles, settled on the seams, can easily disrupt hermeticity.

Mark depth of dive

Initially, the nozzle is inserted into the socket, after which the device is turned on. Further actions depend on the chosen method of soldering, so consider them (techniques) in more detail.

Method number 1. Diffusion solder

When using this welding techno, the material of the parts connected mutually penetrates each other, and after cooling it forms a monolithic element. One of the most common processing methods, which is nevertheless acceptable only for homogeneous materials.

Note! In this case, the soldering temperature reaches 265ᵒС. It is at such a temperature that polypropylene melts.

Video - Diffusion Soldering PP Pipes

Method number 2. Popper

When welding, welding machines with different cross sections of nozzles are used. The procedure itself looks quite simple.

Step 1. Initially, cuts of pipes of the required length are cut. It is important that the pruning takes place exclusively at right angles.

Step 2. Product ends are cleaned with shader (if reinforced pipes are used).

Forms of products are cleaned with shader

Step 3. The ends are inserted into the nozzle of the appropriate section, warm up to the melting point and are connected.

Note! It is imperative that when cooled pipes did not change their position.

Method number 3. Shock soldering

Industrial apparatus for butt welding of plastic pipes

This method is advisable when connecting pipes of large diameter. As in the previous versions, the pipes are cut into the sections of the required length, and the ends are carefully cleaned.

Method number 3. Coupling

With a coupling method of welding between the connected elements, an additional part is introduced - the coupling. Heating occurs the same manner, that's just not the parts of the highway, but only the elements of the connection.

Method number 4. Polyfusion soldering

A variety of diffuse technology, characterized in that only one of the two elements connected is melted.

Method number 5. "Cold" soldering PP pipes

Cool soldering PP pipes

This welding method provides for applying a special adhesive composition on the connected pipes. It is characteristic that the use of "cold" welding is permissible only in those highways in which the pressure of the working fluid is slightly.

On both cuts to apply Cold Welding glue and close the edges of each other tightly, hold 15 seconds

Quality control

When overheating or connecting pipes of a small diameter, the risk of influxing on the inner surface occurs. These influx will prevent the free movement of the working fluid during operation.

To avoid this, it is necessary to check the connection for such defective sites. The connection site must be thought out, and if the air is free to pass, then the welding unequivocally came out very high quality.

Spike polypropylene tubes

Note! After that, it is necessary to check the tightness of the connection - for this, a small amount of water is passed through the paved elements.

Important rules for soldering polypropylene

For a high-quality and sealed connection, you must follow certain rules.

The device should always be in working condition. In this case, for welding a new site will have to spend a maximum of five minutes.
When plastic frozen, the connected elements must be fixed. The optimal option will be mechanical fixation, for example, clamps. If the seam is subjected to at least the smallest exposure, then the tightness will already be broken.
Both items must be warm at the same time.

Both items must be heated at the same time.

Soldering PP pipes in difficult areas

When asked, what is the main problem when arranging a plastic pipeline, any specialist will answer: soldering in hard-to-reach places. To perform this procedure, the design is divided into several sections.

First of all, an uncomfortable large plot is mounted. It is advisable to form it separately, and then install it in a stationary place.

PP pipes for water supply

After fixing the problem area, smaller and, accordingly, simple elements are installed in the installation. This event needs to be held at least two.

Typical errors when soldering plastic pipes

Poor-quality details. If defective pipes or coupling couplings (with cracks, dirt disturbed by geometrical) have been seen, then they must be replaced, since they will cause a poor quality connection.
The use of components from different manufacturers. Each company operates with its standards and standards, so its pipes are suitable exclusively under its fittings. Also parts may differ in chemical composition. All this has a direct impact on welding quality, for this reason all components must be purchased by one brand.
Overheating of parts. This error can be noticed with a naked eye - the pipe is softened and install it in the coupling without deformation will not be released.
The welding machine is weakly warming. In this case, a reliable connection is also unlikely to succeed. Perhaps at the first time the pipeline will function normally, but sooner or later the leakage will happen. To avoid this device, you need to give five to ten minutes for heating, and when you work, do not turn it off from the network.
Used fittings. As already noted, if the fitting stuck is loosely, it should be removed. It is unacceptable to re-use it.

Fasteners pipe with retainer

Skills in soldering PP pipes will come with time. There is nothing complicated here, although at first a few couplings and one or two dozen meters of pipes will be spoiled. And it is not scary, because they are not so expensive; At least autonomy from plumbing costs more.

Soldering of polypropylene pipes with their own hands - step-by-step instruction!

Learn how to solder polypropylene pipes with their own hands! Methods of soldering PP pipes, step-by-step instructions, photo + video.

We understand how to solder polypropylene pipes: features of technology and tips on choosing tools

Polypropylene pipes

Modern repair technologies and materials allow you to collect engineering communications with your own hands without resorting to the help of specialists. It is very easy to find training videos that clearly show how to do it. However, there are some subtleties that it is better to learn from detailed written reviews. We will analyze, for example, how to solder polypropylene pipes, how to keep all the stages of technology and prevent the most common errors during self-installation.

It is advantageous to familiarize yourself with the technical features of propylene pipes and learn how their heat resistance and thermal elongation may affect the operation of the collected pipeline. And already taking into account such knowledge to carry out the maintenance of the highway.

Heat resistance and thermal elongation

Propylene is durable plastic, but it loses its stability under certain technical specifications. The material is deprived of hardness, and therefore forms, if the temperature of the coolant rises to + 140 degrees. However, if you look at the technical passport, manufacturers give much more modest numbers. They advise you to choose propylene pipes for mounting the system of heating, where the temperature of the coolant does not rise above +95 degrees. Why such a big difference? Why do not specialists recommend using polypropylene for the installation of supply heat mains?

Because at higher temperatures, the material described changes its linear dimensions. When heating the pipe is strongly saved, and the voltage arising in this case may result in serious consequences in the form of hazardous utility accidents. There are some techniques to eliminate similar drawbacks of polypropylene.

For example, it is necessary to use reinforced products instead of simple plastic pipes for mounting the heating system. They have a linear elongation coefficient of 5 times smaller than that of conventional plastic, so the piping collected from them is able to withstand the pressure of 5 times greater.

But even in the case of the use of reinforced pipes, it is necessary to install compensators - special P-shaped bends assembled on direct pipes. With an increase in the temperature of the coolant, this will allow elastic pipelines to remain direct due to the fact that the P-shaped removal is slightly narrowed.

Note! Collecting heating with polypropylene pipes, it is better to combine both approaches and use reinforced glass fiber options with P-shaped branches.

Reinforcement

Before soldering the described pipes, you need to know what type of polypropylene in them is used:

Reinforced fiberglass.

Aluminum reinforced.

It is easier to solder with your own hands, and the welding in this case does not differ from the welding of ordinary plastic. Aluminum reinforced pipes must be predetermined. To do this, you will need a special tool in the form of a sharp knife - Shaiver. If black pipes are used, where the reinforcing layer is between two layers of plastic, it is necessary to take a carrier for stripping - a narrow knife, which will allow stripping from the end side.

Choose pipes for heating

Choose material for mounting heating is not really so difficult. The modern market offers four options, and everyone has its markup:

Polypropylene under the brand PN 10 is designed to build a "warm floor" system and cold water supply.
The RN 16 brand can be used for the wiring of cold water and the installation of heating, in which the coolant circulates under low operating pressure.
The PN 20 brand is a universal version capable of withstanding the working pressure of 2 MPa and the temperature of the coolant +80 degrees.
The RN 25 brand is a reinforced polypropylene tube, suitable for mounting heating and hot water systems with a coolant temperature of up to +95 degrees.

Where to take a soldering iron?

The main tool for soldering is a soldering iron, with which sealed seams are created. It can be bought in the store, lend from friends or rent in special construction companies. So in this regard there will be no problems.

When buying a tool, you need to choose such that will allow you to perform all the required operations. As a rule, when assessing the water supply and heating, you do not need to buy trimmed models with a large number of nozzles. The power of the soldering iron affects the speed of its heating, but not the process itself, so it makes no sense to overpay.

Note! Inexpensive models have 3 nozzles for collecting plastic pipes with a diameter of 20, 25 and 32 mm. Pipes of precisely this diameter are used to mount the internal wiring of communications.

Polypropylene pipe welding devices

The welding soldering iron has a fairly simple design. The main thing in it is a sole equipped with heating elements. The sole is equipped with holes of various diameters. You can fix the nozzles with which the pipe solder is performed. The heating temperature "manages" the thermostat that is on the housing.

With the help of it you can set degrees. Their values \u200b\u200bare marked in the instructions, and the table is published on the Internet. Establish the temperature is necessary depending on the type of materials weldable. For example, for soldering of polyethylene pipes, a mode of 220 degrees is selected, and polypropylene - 260 degrees.

In addition to the soldering iron during operation, you may need:

Roulette.

Pencil.

Metal hacksaw.

A sharp knife.

Scissors for cutting polypropylene.

Shaiver.

Technology work soldering iron

The simplest instruction telling detailed about whether it looks like this:

In the configuration of the welding machine there is a special stand. A soldering iron is put on it and is included in the outlet. But a sleeve is introduced into the hole of the soldering iron.
Polypropylene ends are prepared. If it is reinforced with fiberglass, it is not necessary to process it. The material reinforced with aluminum will have to be trimmed by removing the chamfer and risk with a marker. This will help to control the depth of pipe immersion in the soldering iron clutch.
First, measure and cut off the desired segment, adding 25 mm to it - they will be inserted into the fitting when soldering.
When the soldering iron heats up to the desired temperature, you will hear a characteristic sound. Then the coupling is inserted into the nozzle on one side, and on the other - the prepared pipe.
Casses the time specified in the table. Usually, soldering leaves 4 to 10 seconds. At that time, while the coupling and the pipe stand in the soldering iron, they can not rotate and move. You can not touch them after the items will be taken out of the soldering iron. The resulting temperature will allow tight seam.

As you can see, the technology of welding polypropylene pipes is quite simple. It is only necessary to comply with certain rules for the execution of seams.

Here are the main of them:

Be sure to take a chamfer. Otherwise, it is possible to screw the plastic when connecting, and the seam will not be sealed.

When two parts are connected to each other, they cannot be scrolled.

And the fitting and the pipe must be inserted into each other until the stop.

You can not clean the nozzle located on the soldering iron. Melted plastic is better to clean the coarse cloth, stretching the cord from the outlet.

Soldering electric pump

Polypropylene pipes can be soldered with your own hands using an electrical unit instead of the soldering iron. In this case, the process is further simplified, and almost twice the performance increases.

Soldering polypropylene pipes with her hands

The edges of reinforced pipes are prepared in the same way. When connecting parts, clamps are used. The electrical unit is connected to the network. The table is attached to the table and instructions on how to perform a soldering and what time it is necessary to withstand. Electrodes are attached to the coupling body, and the heating time is set in manual mode. On the body coupling there is a monitor where information is displayed that the time of the soldering is over. Welding is performed qualitatively. Marriage is possible only in one case - when there are defects of the spirals.

ENTER ELECTRIC FULL FOODER FOOD than a soldering iron:

First, with the help of it, you can double the time of assembling the pipeline, without losing it in its quality.
Secondly, with the help of a coupling, it is easier to keep connections in hard-to-reach places.
Thirdly, the described apparatus is cheaper, has more compact sizes, and it is more convenient to work with it. The lack of one is to cook the pipes of a small diameter with the help of an electromaphty impossible.

Generalization on the topic

Carefully reading the proposed material and looking at the learning video, you can easily build a pipeline of heating, cold and hot water supply. Especially since now you know how to solder polypropylene tubes. You only need to take into account all the nuances of existing technologies and strictly follow the rules of welding.

Soldering of polypropylene pipes with their own hands: technology, instruction, video

Polypropylene pipe welding provides the fastest and most reliable compound compared with other types of plastic pipes. The compound process is the same for any PP pipes, with the exception of reinforced, which have its own characteristics when installing. The simplicity and availability of this type of work allows it to be carried out independently at home while complying with the correct welding technology and in the presence of appropriate tools.

When installing pipes from polypropylene, you can use one of the three main types of connectivity:

diffusion soldering;

spike electrophings;

cold welding.

Let us consider in more detail all three types of PP pipes: their features, main advantages and disadvantages.

Diffusion welding with the help of an electrician

With this method, the pipe compounds uses a variety of good fittings and a special electric heating machine (soldering iron).

It comes with a set of removable paired nozzles. The dimensions of which correspond to the outer diameters of the pipes and the inner diameters of the connecting elements.

About the most popular diameter of pipes and about other characteristics of polypropylene products here.

A pair of nozzles is fixed on the thermal heating element of the electric machine and is heated with it to temperature 260 ° C. Connecting parts are inserted into the heated nozzles for a few seconds. Due to this, heating and partial melting contact with the nozzles of the surfaces of polypropylene elements occurs.

After that, the pipe and the diverse element are quickly extracted from the nozzles and insert into each other. As a result, interpenetration (diffusion) of molten surfaces of parts occurs.

After cooling, they form a completely monolithic compound.

The advantages of this method:

easy soldering process;
low cost of volunteers;
a small cost of the electrician.

disadvantage of the use of electrical appliance in hard-to-reach places.

Diffusion welding of polypropylene pipes is the most common With independent installation at home.

Connection of pipes using electrophes

Electropline are various connecting elements of a special design, inside which there are built-in electrically heaters with outgoing contacts.

When installing the pipe is inserted and fixedly fixed in the electrophing. To the outer contacts of the electrofolding using wires, the welding machine is connected to the power supply to it in a predetermined automatic mode for a certain time.

As a result of the operation of the built-in electrical heater, there is a partial melting of the inner surface of the electropline and a soldering of PP tubes with a connecting element.

The advantages of this method:

fast and technologically simple process of welding pipes.

high cost of connecting reinforcement and welding unit.

The soldering of pipes from polypropylene with electrophing use construction firms when performing large volumes of work. At home this method is practically not used .

Cold welding

Cold pipe welding is carried out with special glue. It has a special composition, which softens the outer surfaces of the connected elements.

For this, the connections are preventing the compounds, then the glue layer is applied to them. After that, the parts are connected between themselves, fixed in the desired position and are kept for a certain time.

Stepped pipe connection with cold welding not inferior by strength diffusion thermal spike .

simple technology that does not require the purchase of electric heating equipment.

this method of compounding polypropylene pipes can only be used for cold water supply systems.

How to solder polypropylene pipes

Given that the electrophings and cold welding at home practically no one uses, the further instruction will be devoted to independent welding of polypropylene pipes with the help of an electric machine.

Tools and materials

To work, you need to prepare:

special electrical equipment with a set of appropriate diameter nozzles;
special roller cutter (pipe scissors) or saw;
a file or a sharp knife to remove burrs on the ends of the pipes;
measuring roulette or ruler;
marker or chalk for applying marks to the parts connected;
installation device for soldering pipes with a diameter of more than 40mm.

In addition to the PP of pipes and the connecting reinforcement, it will also be necessary to need x / w rods and liquid for degreasing the surfaces of heating nozzles (acetone, alcohol, etc.).

Table of parameters and welding time

To ensure the best quality of the connections, you need to follow certain rules. The parameters specified in the table depends on the diameter of the products and the ambient temperature.

Pipe soldering temperature: 260 degrees.

Outer diameter, mm

Landing depth, mm

How to solder polypropylene pipes

Listening to numerous advice, you decided not to hire masters for mounting the heating system and perform all compounds of polypropylene pipes with their own hands. If you are confident in success and know how to work well yourself, we boldly begin to prepare and manufactures work.

We, for our part, tell you what tools and fixtures for installation will be required and how to solder polypropylene tubes. By default, we assume that all materials are already bought, it remains only to collect everything according to the scheme.

Welding machines for polypropylene pipes

Let's start with the preparation of the mounting tool. Since all pipe connections and Fittings from the PPR are manufactured by the soldering method, you will need a special soldering iron for this purpose.

Note. The connection of parts from the PPR is sometimes called welding. In order not to get confused, remember that when it comes to polypropylene tubes, then the connection method exists one - soldering, but it is often called welding. With the help of press or threaded fittings, such as metal-plastic pipes, these systems are not mounted.

The welding machine for polypropylene pipes used for operation is offered on the two species market:

with round-section heater;
flat warming element.

The latter in common was called "Iron" due to some external similarity with this household appliance. Different welding machines do not have fundamental differences, only constructive. In the first case, nozzles for pipes from Teflon are put on and attached to the heater like clamps, and in the second - are screwed to it from two sides. There is no special difference in the rest of the special difference, and the function of the device is one-soldier of polypropylene.

Soldering devices are usually sold complete with nozzles. The cheapest and minimum Chinese production kit is a soldering iron up to 800 W, a stand for it and nozzles for 3 sizes of the most common pipes - 20, 25 and 32 mm. If only such diameters are present in your heating scheme and you do not plan to solder polypropylene pipes somewhere else, except for your home, or do this professionally, then the budget set will be enough.

If, in accordance with the calculation and the scheme, you will need to docile pipes of sizes 40, 50 and 63 mm, then you will have to spend and purchase another set for soldering, in which there are appropriate parts. Well, the most expensive kits are manufactured in European countries, they are distinguished by reliability in work and durability. Such sets include such tools:

soldering iron with stand;
teflon nozzles for the soldering iron of all the above diameters;
scissors for cutting pipes under a clear angle of 90º;
hex key;
cruciform screwdriver;
roulette;
gloves.

Important! Since spike polypropylene pipes are working with heated equipment, it is highly recommended to always use gloves, regardless of whether they are included or not. This is especially true for newcomers, which in 99 cases out of 100 accidentally touches the heating element.

The working part of the soldering iron (heater) of any design is designed in such a way that 2-3 nozzles for small diameter pipes can be installed on it. This allows you to save a lot of time working with highways of 20 to 40 mm.

A little about the power of the soldering machine. High power is necessary for quick and uniform warm-up of parts of large diameters, which are considered to be 63 mm and more. For home purposes, it is enough to have an iron with a capacity of 0.7-1 kW. Soldiers with heaters above 1 kW are considered professional, respectively, cost more than ordinary.

In addition to the iron, another tool for soldering polypropylene pipes should be prepared, its composition is given above in the list. If there are no scissors for cutting off the pipe at an angle of 90º, then for this purpose you can use the hacksaw and a carpentry stupid either to make it yourself, guided by the drawing:

Note. When scissors for polypropylene pipes are missing and they are cut off with a hacksaw, then the end must be cleaned from the sizes outside and inside the product.

Before cutting off the site of the desired length, it must be accurately placed. The fact is that when connecting, part of the pipe is included in a tee or any other fitting, it is called a depth of soldering. Therefore, it is necessary to add the value of this depth to the desired size of the area defined by the roulette, measuring its value from the end and putting a pencil label. Since the soldering technology provides for different immersion depths for different diameters of pipelines, its values \u200b\u200bcan be taken from the table:

Note. The table indicates the ranges of the soldering depth, since different pipe manufacturers from the PPR it varies within these limits. The value can be clarified by measuring several fittings with a depthioner.

When installing heating systems, soldering reinforced polypropylene pipes are performed, they differ from the usual presence of a layer of aluminum foil, fiberglass or basalt fiber. Moreover, this layer in products of various manufacturers can be made differently. When the reinforcement is not located in the center of the wall thickness, but near the outer edge, then the soldering of pipes from polypropylene will require stripping. For this there is a special device:

Welding process

Before proceeding with the work, you need to put on the soldering iron nozzle, corresponding to the size of pipes, and then turn it on and configure it. Here you have to know at what temperature the polypropylene pipes are soldered. Most manufacturers indicate the operating temperature of 260-270 ºС, it is not worth raising above, and then not to avoid overheating. The under-coat is also fraught with a poor quality and leakage compound, where it is quickly formed to flow.

It should be understood that the heating time, the diameter of the products and the welding temperature are interconnected. In the table, we indicate the gaps of the welding time at a standard temperature of 260 ºС.

Note. The duration of welding is the time until the plastic frost when the joint is gaining maximum strength.

When the iron setting is completed, proceed to welding, following instructions for soldering polypropylene pipes:

Taking into one hand the pipe, and to another - fitting, dress them on the nozzle of the heated soldering iron at the same time from two sides, without turning around its axis.

Withstand the laid time.

Gently remove both connected parts from the Teflon nozzle, again, without rotation.

Smoothly insert the pipe into the fitting to the mark without turning and fixing during the time specified in the table, on this joint is ready. More The operation is shown in the video:

It is more convenient to use the soldering iron right when it is installed on the table, so first it is recommended to do up several training joints. After that, you can collect all possible nodes with short sites in a convenient position. The further laying of highways with the attachment of tees at the place is already harder here. The heated iron for the soldering will need to be one side to wear on the paved pipe, and on the second stretch the tee, holding the device on weight. Then the soldering iron is removed from both parts and they docile.

Locking trunk pipelines, follow the sequence of installations and elements. Start assembling the system from the heat source and go to the end, and to connect two polypropylene pipes, try to use only tees, which will go to batteries. Couplings for this purpose, use when it cannot be done otherwise. Avoid the joints in hard-to-reach places, otherwise it will have to work at once with two soldering places to simultaneously warm the connected parts.

Council. Many manufacturers of polypropylene systems are developing their own instructions on the installation of their products. From there you can learn a lot of useful information, take advantage of this.

How to connect a metal-plastic pipe with polypropylene

Due to different circumstances, it is necessary to connect different types of pipes, for example, PPR and steel, metal-plastic with polypropylene and so on. Such situations occur in apartments where the part of the total rising of the water supply system or heating, laid by a steel or metal-plastic pipe, is difficult to change it difficult, and it is necessary to connect to it. It is not a big problem, it is only necessary to consider that all such connections are performed through threaded fittings.

Since the combination of metal-plastic pipes can be carried out by press and folding fittings, then for docking with polypropylene it is more convenient to take a detachable fitting with an external thread. In turn, a fitting with an external thread is soldered to the end of the pipe from polypropylene, after which the connection is twisted in the traditional way, with a winding of flax or fum-tape.

Detachable fitting for pipe connection

When it is necessary to crash into metal-plastic pipes, then it is convenient to put a tee with a threaded tap, where you can subsequently fasten the fitting, and then solder a polypropylene tube to it. True, with the installation of the tee will have to tinker: it is necessary to turn off the water or empty the heating system, and then cut the metal stuffing and install.

The compound of polypropylene pipes with a welded method is characterized by higher reliability compared to other methods of combining products. Such a compound technology does not have any differences when working with polypropylene. The exception is only reinforced products: their installation involves some specific features.

This technique is pretty simple. Welding can be carried out in domestic conditions, observing the requirements of the technological process and having the entire arsenal of the necessary tools.
There are several options for connecting polypropylene pipes:

diffusion soldering;
spike electrophings;
cold welding.

In this article we will talk about each way of combining cylindrical products in more detail, consider their advantages and disadvantages, and also learn to solder polypropylene tubes.

Before proceeding with work, you must prepare a mounting tool. To create a reliable junction of structures and all additional parts, a special soldering iron will be required.

It is worth noting that sometimes the connection of products made from polypropylene is called welding. However, this process has many varieties, so it is important to remember that polypropylene pipes are connected only in one way - soldering. For the installation of such a system, threaded fittings and metal-plastic are not used.

Soldering of polypropylene pipes requires the use of welding machines. Seven types of devices are available:

heater with a circular cross section;
flat aggregate.

The second type of soldering apparatus in the people began to call the iron, which is more connected with its appearance. Such devices differ only in their design.

For the first model, teflon nozzles are put on the heater and fixed with details similar to clamps. In the second device, the same nozzles are screwed to the heater on both sides. The remaining elements of the design are no different. The main function of the device is to carry out a high-quality and reliable soldering of polypropylene products.

The soldering device must include nozzles. The most inexpensive device, which includes the minimum number of items, is considered a Chinese soldering iron. Its power does not exceed 800 W. It is available on sale together with the stand, as well as by nozzles, allowing to carry out pipes from PP with a cross section of 20-32 mm.

When the system heating of a private house is made of cylindrical products of this diameter, this kit will be quite enough. But if more professional works associated with soldering are assumed, you will need a better device.

For pipes with a cross section of 40-63 mm, another solder kit is necessary. It will have to be bought separately. The most expensive sets, characterized by increased reliability, are manufactured in major European countries. The following details are included in their kit:

soldering iron;
stand;
teflon nozzles of different diameters;
scissors that allow cut pipes, withstanding 90 degrees;
hexagon;
crushing cruciform;
roulette;
gloves.

Since the soldering of polypropylene pipes have to work with hot equipment, it is necessary to perform an operation in gloves. Newbies quite often get burns, touching the heating element.

The design of any soldering iron is designed so that several nozzles can be set immediately to connect the pipes of a small diameter, which allows you to save time, especially when working with a cross-section of 20-40 mm.

Power soldering machine

To evenly and quickly warm the pipe with a diameter of 63 mm, a high power of the system is necessary. For household purposes, there will be enough apparatus with the value of the value that determines the amount of energy not exceeding 0.7-1 kW.

If the power of the iron is more than 1 kW, it goes into a discharge of professional. Its cost is much higher than the price of an ordinary soldering iron.

Fashion first

For the manufacture of homemade soldering iron, you will need:

the failed old iron, which has a heating element;
children's metal designer;
rubber handle;
toggle switch;
asbestos cord;
duralumin;
insulating tape.

Manufacturing technology

bulgarian from the bottom of the iron is cut off all the extra details;

made aluminum lining;
the box is mounted from the designer; It is installed in it light bulb and rubber handle;
to the wire connected to the bag and the soldering iron regulator;

all items are connected to one unit;
cables solder;
to the housing, pre-posing asbestos gasket, fits the heating element with bolts.

Thus, having spent some time using a healthy material, you become the owner of the homemade soldering iron for welding pipes from PP.

Method of the second

For the manufacture of the instrument, you will need a pair nozzle worth 215 p. And the elevated setting iron. It takes about two hours.

First, the heating device is installed vertically. The fitting simultaneously with the pipe is put on the warming nozzles. To ensure the possibility of carrying out operations on the wall of the Iron, you need to subjected to a small modernization: trim "sting" soles and turn it slightly. We will not use the use of thermal paste.

It is known that several pipelines were welded with such a homemade apparatus. The quality of work was quite high.

After heating the iron, holding it by the handle, the pipe is first removed. It is not necessary to remove the fitting at once, since its thickness does not allow him to quickly melt. It remains to hold the pipe with the iron and remove the fitting.

To connect the products, it is necessary to make small efforts, until it is formed by a smooth ending around the perimeter of the fastener.

In this position, you need to hold the connection of about 15-20 seconds until the polymerization starts. Welding on the wall is characterized by simplicity: the heating device holds one hand, the other is the pipe.

Method Third

We make an iron equipped with a temperature regulator, which will perform a special power control unit, assembled on a thyristor. For soldering works, voltage is supplied equal to 170V. Aluminum or copper plates are used to create fixtures. The photo shows a detail with a thickness of 0.8 mm, however, the value of this value can vary in a major side.

Flat elements are needed that the heater does not start cooling at the time of putting on the pipe. For work, a TEN is used (1 kW) from the obsolete plate "Dream". Since the radiator is almost not heated, it can be reduced. To install a thyristor and diode, the gaskets are not required. The design of the Iron itself may have any kind, it all depends on your imagination.

Below is given power regulator circuit.

On each side of the spiral can be installed aluminum gaskets in the form of round pancakes. A knob with a regulator and a fixed toggle switch is attached to the housing. In other words, you can take tuning.

The principle of all devices is always one: for soldering pipes from PP, you need to observe a certain temperature.

How to choose nozzles

Selecting the heating nozzles, it is necessary to consider the diameter of the connected pipes and other important points:

strength;
how well the form is preserved after changing the temperature;
thermal conductivity.

Almost all welding machines are suitable for various nozzles. It is very convenient when you need to mount a complex highway.

Each worn element has two end. On one heats the outer side of the part, on the other - its inner part. All nozzles have teflon spraying, which protects the surface from sticking the molten material. The dimensions of the parts are in the range of 2-6 cm, which corresponds to the common diameters of cylindrical products.

Normal temperature for soldering

For durable welding of structures, the temperature of the soldering of polypropylene pipes should not exceed 260 ° C. Otherwise, this will lead to the loss of stability of the plastic basis, as a result of which the pipe simply will not be able to connect with the fitting. Moreover, the preheated connecting element will begin to adhere to all parts around it. However, the temperature of a smaller value is also not suitable for soldering.

It is important to remember that the viscosity and plasticity of the polypropylene design should have certain values, otherwise diffusion processes will not begin, and the connection will lose its reliability. The service life of such pipelines will be minimal. About the warranty at the age of 50 will have to forget. At what temperature to connect the products, it is better to look at the table.

Time soldering pipes

If you properly comply with the requirements of technology for the duration of the design of structures using a special tool, you can get a fairly sealed joint. Polypropylene after overheating will not start spreading. Heating time depends on certain parameters. The main things are:

pipe cross section;
width of the welding belt;
ambient temperature.

Below is a special table, which indicates the recommended time soldering of products from PP, taking into account all the values \u200b\u200bmentioned above:

Welding of polypropylene pipes

The main way to install plastic, when it is necessary to connect small cylindrical products of different sections, the use of the termination is considered. When welding designs from PP necessarily use additional details:

corners;
tees;
tires.

All of them are made from the same material from which pipes were made. The use of additional elements to create a high-quality connection is not considered the disadvantage of this method. The details under consideration, except for the connecting function, help change the direction of the pipeline.

This process consists of several operations:

mail surfaces are melted: the outer wall of the cylindrical product with the inside of the fitting;
special heating parts are used;
cooling the elements in the assembled form.

In the opinion of professionals, the connector connection is considered much more reliable than shock welding. Due to the fact that when combining a pipe with an effort enters the fitting, high strength is created. In this case, it does not require the use of a special tool for centers. Aligning cylindrical structures in a similar way even newcomer.

Welding apparatus

Devices intended for connecting products from PP crawler are called soldering iron, or iron. The main element of such a device was the heating head. All replaceable details are attached to it:

couplings;
dorna.

The first elements are designed to heat the outer surface of the pipes, the second - the inner part of the fittings. The form of the heater in most soldiers remains a triangular plate. You can find other performance devices on sale.

The size of the nozzles depends on the size of the flat detail. In other words, the cross section of the pipe is selected, which will be free to fall. In addition, it is necessary to take care of the desired number of heating steam to implement simultaneous installation. To work with a large plate, you will need a powerful unit.

Additional parts (couplings, dorn) must be fixed so that their support surface tightly touched the plate.

With good contact, the desired temperature (260 ° C) will be achieved. In this case, the power of the soldering iron does not matter much.

Today, devices equipped with a heating head in the form of a rod are produced. Their main advantage can be called compactness. The technical parameters do not affect the technical parameters.

For high-quality work of the iron, the accuracy of the operation of the thermal sensor supporting the required temperature is important. If its oscillations become minimal, it indicates the high quality of the soldering iron.

The most perfect today are electronic thermostators. These thermistors are capable of showing the exact temperature of the temperature even on the working surface of the coupling.

The use of such parts allows to reduce the temperature inertia of the iron. As a result, the true heating head indicators will be displayed on the scale of the device.

Bimetallic relays are more rude, as well as capillary thermostats whose values \u200b\u200bare characterized inaccuracy. If we compare with the data of thermistors, the discrepancies will be quite large. Whatever the thermostat when the device reaches the operating mode (if you judge the indicator data), you must wait a few minutes. During this time, the nozzle temperature is compared with the one that shows the device.

Now you can proceed to welding. Manufacturers also produce solders having two heating elements of different power. Each item is equipped with a separate switch.

These products are able to independently achieve the desired temperature regime. The master chooses the required power.

The second item becomes a spare in case of failure of the first.

The device provides the ability to simultaneously turn on both heaters to achieve the working mode faster.

The equipment can be equipped with auxiliary instruments, including:

fatheck seater;
calibrator;
carrier;
scissors for cutting pipes.

In some sets, you can even meet a special cleansing fluid. However, not all of the listed parts are included in the main complete set. Often they have to buy separately. It is important that the welding machine has in a set all the necessary tools to work with any diameters of pipes and materials.

Technological process of welding of the cluster

The outer diameter of the cylindrical product is always a bit more nominal cross section. Fitting, on the contrary, the inner diameter is less than the nominal cross section of the pipeline.

Take, for example, a pipe is 20 mm. The present size of its external diameter will be in the range of 20.3-20.5 mm. The fitting designed to work with a product of 20 mm, the internal section will be 19.5-19.7 mm.

Moreover, the middle part of the clutch surface will accurately correspond to the nominal diameter. For the conical plane, 5 degrees are taken.

It becomes clear that if you do not heat fittings, they will not be able to connect with the coupling.

When the pipe is aligned with a hot coupling, the outer part is melted. Top is extruded everything too much, it turns out a kind of roller. Next, the internal layers are heated. They begin to shrink, while the pipe gets the opportunity to get into the hot clutch. A similar effect can be achieved when the fastener element is connected to hot.

When the pipe is aligned with the fitting, its elastic compressive occurs, while the connecting element begins to stretch. The heated surfaces are squeezed, squeezing the air. As a result, a uniform mixing of the molten material occurs.

The general technological process of connecting pipes from PP of the driver has several consecutive operations:

cutting products;
preparatory activities;
installation of the welding machine;
achieve the working mode;
heating parts;
assembly;
cooling a highway.

You can manually connect the pipe with a heated tool without much effort, if small parts are welded, the cross section of which is in the range of 40-50 mm. To combine cylindrical designs with a diameter in excess of 50 mm, it is necessary to use a special centralistant intended for performing fuse-welding welding.

Since the soldering of polypropylene pipes is not much difficult, work can be performed alone.

To cut the cylindrical products, special scissors are used, which do not allow to frighten the pipe walls.

Before proceeding with the soldering of polypropylene products, the surface of the parts is thoroughly cleaned and degrease. Reinforced designs are subject to special training. This must be remembered by workers carrying out such products.

Composite pipes from PP, which are reinforced by aluminum, are distinguished by a low temperature expansion. Therefore, the heating system made from similar products does not require the installation of additional temperature compensators. Only in such products reinforced with aluminum, the diffusion of oxygen is possible. After entering the air into the system, an active saturation of water oxygen occurs. As a result, the process of cavitation of the valves, as well as other parts of the construction of cylindrical structures begins.

In the absence of a reinforcing layer, you can not conduct additional special training.

Technological map of welding of polyethylene pipes

How to solder reinforced polypropylene pipes

In this case, aluminum contact with liquid is strictly prohibited. This alloy begins to collapse, and buy new products unprofitable. The appearance of small internal disks in the joints is difficult to notice with a naked eye, however, these zones are the weak point of the entire system. Here it is possible to enter the metal surface.

To prevent it, thoroughly clean the reinforced layer. Such an operation is mandatory for conduct, if the surface of the pipes are wrapped in foil.

To remove a metal sheet, a special device is used - the so-called Shaiver. He has to buy separately.

An end is inserted into the device, similar to the pencil sharpening, and start turning.

When working should not forget about cleaning the aluminum layer. Welding will occur without this procedure, but the reliability of the obtained compound will be quite low.

From such a human factor you can get rid of by installing pipes reinforced with fiberglass.

If the aluminum reinforcing layer is located in the center of the wall, the surface is carried out with the help of a special tool. It helps remove aluminum edges that cover the end of the pipe. If such an operation is not conducted, water can get into the center of the wall, moving along the microcracks of the reinforcing layer, which will inevitably lead to bloating.

In the photo you can consider the swirling connections of the cuts: incorrect execution in the picture without trimming and correct - with the ending.

To achieve the best result, special couplings are applied. They, as it were, "melting" the ends of the reinforcing layer, which helps to avoid contact metal with liquid.

Some manufacturers give their own recommendations, as needed to prepare pipes before welding. Even if there is no reinforcing layer, it is necessary to calibrate the outer diameter, after which it is necessary to remove the face.

Calibration operation removes the ellipsence of the pipe, making it absolutely round. Faceted chamfer makes it easier to connect with a coupling. Unfortunately, when PP pipes are soldered independently, these operations are completely ignored.

How to prepare a soldering iron to work

First, the welding machine needs to fasten well. When heating begins, the parts are exposed to pressure, which is transmitted to the soldier. To make it easier to work, it is important to provide the device for the device.

The tool is put on the heating steam. Next, the desired heating temperature is set, the voltage is supplied. When the pipes from PP crawler are welded, the heating temperature should be in the range of 260 ± 10 ° C, which exceeds the values \u200b\u200bat which the polypropylene becomes viscous and fluid.

In this way, fast melting of the top layer of the pipe together with the fitting. As a result, the detail is easily removed without warming up the wall thickness. With a different temperature value when items become soft, the connection will be impossible.

We put the items for heating

When the welding machine reaches the operating mode, the light lights up. The pipe is inserted into the coupling, and the fitting is on Dorn. If you have to carry out such work at the same time, it is quite difficult, a heavy connecting element is first mounted.

Welding parts necessarily have a small allowance, which begins to be squeezed out when they are installed. This turns out the annular roller (graph). To move such a ring, you need to make some effort, but it should be done smoothly and slowly so that the grant acquires the correct form. The fitting freely on Dorn and does not form an annular roller, is considered defective.

When installing, the details are required be sure to follow the depth of installation. As soon as the element flies into the top of Dorn, it is necessary to stop pressure, otherwise you can damage the end of the pipe and stop the fitting limiter. To control the depth of immersion parts in the coupling, at some distance from the end the corresponding mark is made. However, this procedure is optional, as basically the fitting is inserted into the mandrel until it affects the stop.

After the items were installed in the coupling of the apparatus and its Dorn, you need to wait a few seconds until the surfaces are not well deployed. It is important to correctly determine the duration of heating. This time should be enough to obtain a viscous and fluid state of polypropylene.

If the heating period is too large, the details will become very soft. Plastic pipe manufacturers have developed special tables in which heating time is designated for a certain polypropylene brand. In this case, the wall thickness and the pipe cross section are also taken into account.

When fittings are combined with cylindrical products, the angle of turning parts should not exceed 5 degrees. If the joke is made correctly, the graph will have the same thickness from all sides.

Cooling compound

If it is necessary to correct the work performed, the technology allows this to do for a few seconds. Details should not be subjected to any pressure until the material finally hardens, which lasts about 2-4 minutes.

Approximate parameters of the duration of welding operations can be viewed in a special table. More accurate values \u200b\u200bare indicated by manufacturers of fittings and products from PP.

When soldering products from PP, the ends of the parts are heated by a hot tool before reflow. Then the elements with force are pressed until the seam cooling occurs. This technology is characterized by its simplicity.

In this case, there is no need to use additional devices. If everything is done correctly, it turns out quite reliable seam, not inferior to the strength of the pipe. The technological operation is performed in a specific sequence:

With all its simplicity, joking welding only seems so available. In practice, for this it is necessary to solve several problems that it is almost impossible to do in living conditions.

The pipes should be accurately combined along their axis, while the deviation from the wall thickness is only 10%. The pressure on the parts, pressing cylindrical products to the plane of the heating mirror when exposed to high temperatures, should be provided only to a certain time. Only this can be a high-quality connection. When performing trimming, it is necessary that the end was perfect perpendicularity.

The conditions listed above is quite difficult to follow without an additional instrument - a special centralistrator. It is equipped with an electrical drive that creates a specific compression force. In addition, this device is equipped with a carrier.

In other words, to carry out butt welding of polypropylene pipes of small diameter, you will need more special equipment compared with the previous connection method. Given the fact that when welding, the cluster turns out a better docking due to the lock connection, homemade craftsmen prefer to use this method of combining pipes.

The butcher welding of products from PP is mainly used in production when it is necessary to connect the structures of a large cross section when installing a direct portion of engineering facilities from cylindrical products.

So practical in the application that they almost occupied the entire niche in the share of sales, displacing traditional metal. This is due primarily in the first characteristics of PND pipes.

In some countries with pipes of small diameter indoors, so far and come.

But soldering reinforced polypropylene tubes is easily and economically beneficial.

Required tools

To solder polypropylene pipes with their own hands, you will need so-called. These are special connecting elements, often in an angular form.

They differ in shape.

There are from different materials, homogeneous or several, for example, metal with plastic. And applied in different works:

But it must be borne in mind that thread often flows, and the soldering is a better connection. Threads are sometimes sealing with remedies.

Scissors are two species, depending on the diameter. Sometimes used shawer and fake.

The welding machine is a design with various holes.

In these holes with different diameters are attached special nozzles for soldering. The kit includes various nozzles with a special coating, followed by careful care.

There are several types of devices designed for different power. Accordingly, on different diameters. The temperature of the work is regulated by a special switch.

Sheer is a special device for stripping the reinforced layer from the surface of the ends.

For cleaning from unnecessary plastic and level alignment is used.

Preliminary work

Before you start to solder, you need to make a preliminary project.

All joints and lengths of segments must be visible in it, and attachments to surfaces are prescribed. Such work will reduce the likelihood of errors.

Also calculate the required amount of material. If they are made by analogy with old systems, they are free.

Prepaid are made of blanks - cut the necessary lengths of pipes. To do this, 30 mm is added to the distance between fittings. Then cut with special scissors at exactly 90 degrees. Then the fitting is fixed, and the distance is noted. The longitudinal mark helps to connect pipe elements on the axes.

When soldering reinforced pipes over the ends, they pass shaward to clean the surface. The fasteners are made with such a diameter that pipes only will be placed without the top layer.

How to solder polypropylene pipes.

The device gets and turns on. It is important to prepare a place to work comfortably and did not distract anything. It must be constantly turned on.
The ends of the pipes are degreasing and cleaned from fine dust and garbage. Connection elements can be washed with water.
A suitable nozzle is inserted into the special hole of the soldering iron.
Installed the required temperature. And the device is heated for about ten minutes. About readiness will inform the indicator.
The element is slowly and neatly put on the nozzle.
For heating it is necessary to withstand a pause. The larger the diameter, the longer it is necessary to wait. Time is from 4 to 10 seconds.
Next, this element is quickly removed and put on the pipe. Longitudinal and transverse labels will help here.
Seam inspects. High-quality seam is usually smooth and neat. There should be no folds. The permissible shift is the thickness of one wall.
After that, the pipes must be saved. You can not exercise them or.
If something went wrong during the process, then the error can be corrected only by cutting an incorrect connection.
When soldering the crane, it is necessary to position it so that the handle can turn into all directions.

In fact, the process of soldering is quite simple. At the same time must comply with technology.

You can see how to solder polypropylene on video. Work is better to spend in gloves.

The temperature joint of polypropylene (PP) tube products is carried out quickly, forming a hermetic junction with a long service life. Due to such a feature, the welding method and the polypropylene pipes themselves are widespread among the home masters, carrying out the installation of pipelines of various functional purposes with their own hands. However, despite the seeming lightness, the welding process requires not only practical skills, but also knowledge of certain information, such as the temperature of the soldering of polypropylene pipes, the heating period, the junction time to the operational strength. To help those who first decided to carry out the installation of the pipeline (heating circuit) by polypropylene tubes, the most significant information regarding this process will be reflected in the article.

One way to connect plastic pipe products is cold welding. The essence of the technology is to preliminarily apply to the connecting polymer surfaces of a special substance, temporarily chemically diluted plastic. After the compound of plastic parts, the material acquires the initial hardness, but during this period there is a hermetic sobility of surfaces. Cold welding did not find wide use, although in some cases it helps to run the elements of the pipeline in hard-to-reach places or where there is no access to the source of the electric current.

Large distribution received thermal methods of soldering PP pipes. These include:

welding with thermoelectric fittings;
diffuse solder.

Both methods of compounding polypropylene tube products are based on the temperature melting of the skewed surfaces, followed by their combustion in the process of cooled. The difference is only in the technological approach. Consider each of the methods in more detail.

Soldering thermoelectric fittings

Such connecting elements for the formation of the joints of the PP of pipelines are arranged in such a way that the spirals are arranged in their body, which goes to the outer surface with electric terminals. When passing through the electrotock helix, mostly the inner surface of the thermoelectric fitting is heated to a certain temperature, which helps to melting plastic surfaces with their subsequent reliable battle.

The use of thermoelectric fittings to construct household pipe communications is limited. The reasons for this is the high cost of connecting elements, the need to acquire expensive equipment and the presence of special knowledge that can be soldered in a similar way. In addition, for soldering of small diameter pipes (16, 20, 25, 32 mm), mainly used for household pipe wership, there is a simpler, less expensive, while the reliable method of welding polypropylene, which will be discussed below. With the help of thermoelectric fittings, large pipelines are connected (large diameter) and work is carried out by specialized organizations that have admission to such activities.

Diffuse Welding of PP Products

This is exactly the soldering method, which is widely used for the installation of household polypropylene communications. The technology is based on the simultaneous temperature melting of the connecting surfaces with their subsequent tight compound. The molecules of the molten polymer permanently penetrate (diffuse), forming a solid monolithic compound.

To carry out the melting of polymer surfaces of the connecting parts (pipes and fittings), a special electric soldering iron is used. The device has a sword-shaped (cylindrical in some models) protrusion, which is the heating element. In the set of the soldering iron there are double-sided nozzles for certain sizes of pipes and the corresponding connecting parts, which are installed on the heating ledge.

It is possible to simultaneously install multiple nozzles if you want to work with the segments of the PP of the pipeline of different sections. The heating appliance is equipped with a graded thermostat that allows you to set the required temperature of the nozzles and light bulbs that signal the connection to the power grid and the soldering iron is ready to work. Plastic melting nozzles are covered with a teflon layer that prevents the adhesion of the molten polymer.

The advantages of the method of diffuse soldering of PP pipes are popular, are the following factors:

low cost of equipment and materials (pipes, connecting and transitional elements);
the possibility of forming hermetic durable junctions of the pipeline;
easy and high speed assembly of household pipeline circuits with their own hands of any complexity and configuration;
the ability to work simultaneously with the connected elements of different diameters.

Technical parameters soldering PP products

In addition to the practical nuances coming with their own experience, with diffuse welding, it is important to comply with some technological requirements that allow you to stably obtain a reliable connection of the elements of the pipeline. These include the time of welding polypropylene pipes, the period of their fixed fixation after the introduction of the pipe in the fitting, the cooling time and some other parameters that differ for products of different diameters. Below is a table for pipes, with a cross section, most commonly used for domestic water supply of water and heating contours.

Cross section, mm.	Depth of planting, mm	Heating period, seconds	Still fixation period, seconds	Cooling period, seconds
16	12	5	4	2
20	14	6	4	2
25	16	7	4	2
32	18	8	6	3
40	20	12	8	4

Heating time and other technical parameters of the process specified in the table are valid when the polypropylene parts are heated to 260-280 ° C and the ambient temperature ranging from 15 ° C to 20 ° C.

Toolkit needed to solder PP pipeline

electrical tube with an applied set of two-sided nozzles of different diameters (16, 20, 25 mm);
truboresis (special pipe scissors);
filed for stripping of sowing and roughness on the edged door of the pipe;
measuring construction roulette;
marker.

From materials, in addition to the pipes of the necessary diameter, connective and shut-off reinforcement, transition elements, you will need a rag from natural tissue (flax, x / b) and degreasing liquid (White spirit, ethyl alcohol, acetone).

Prepare the necessary materials and tools, you can proceed to the practical implementation of the process of welding PP of the pipeline, relying on the instructions outlined below.

Soldering pipe polypropylene products with their own hands, instructions

The electrical harder is installed in the tripod-running tripod and is equipped with the required double-sided nozzles, which are processed by the degreasing fluid. The device for heating polypropylene is connected to the power supply (a red light will turn around), the thermostat handle is installed by the required soldering temperature (260-280˚С). When you set a soldering iron of a given temperature, a green light bulb will turn around.
The measuring tape measure the area of \u200b\u200bthe polypropylene tube of the required length is measured, marker is made, according to which a cut is made. For this, the pipe is placed on the base of the pipeline (the label is installed in the center), after which the blade is lowered. Making a slot from above, a circular movement to the tool is made. The cutting edge is released irregularities and burstles with a file, after which the shy surfaces are cleaned of dust and degrease.
On the surface of the PP pipe, a mark is made, corresponding to the landing depth (see table), for example 14 mm from the end for the product with a diameter of 20 mm. It is necessary that inserting the pipe after heating into the fitting, do not pass it by the end of a restrictive protrusion, which can lead to a critical narrowing of the tubular lumen. In addition, the mark made will help you find the correct axial location when docking the elements.
Prepared and degreased connected elements are suitable with the nozzle of the corresponding diameter. Manipulation may require physical effort (this is normal). To facilitate the procedure, it is allowed to produce minor rotational movements. Before docking with a nozzle for heating polypropylene products, it is recommended to wear workers mittens. It will save from the burn with a random contact with the nozzle and facilitates the workflow. It is recommended to first wear the fitting, then enter the pipe, since a more thick-walled connecting element has a greater inertia of heating. You need to remove the connecting details in the reverse order - first the pipe, then the fitting.
At the end of the heating period specified in the table above, the connected elements are removed from the nozzle, after which the pipe end is entered with their own hands into the hole of the connecting element to the dumpled distance. It is contraindicated to produce rotational movements (sharply reduces the quality of the connection). By entering the pipe to the mark, it should be fixed both parts that are not less relative to each other for a period of not smaller than specified in the table. After a complete joint of the joint, it is ready for testing operational loads.

So it is necessary to solder polypropylene tubes by diffusely after heating with a special soldering iron. Observing the rules specified in the instructions given, it will be possible to achieve the formation of reliable compounds of the PP of the pipeline with their own hands. Suspend theoretical calculations visually will help the following video