What can be cooked from squid: quick and tasty

Many people decide to make their own plumbing at home.

Practice shows that PVC-based structures are best suited for this purpose. And to do everything , soldering skills will be required.

Do not worry if you have minimal or no experience with a soldering iron. Soldering PVC pipes- the process is not too difficult, and you will not need to prepare large quantities of special tools for it.

Materials for work

To carry out competently welding work, you need to prepare such set of tools:

marker;
construction level;
roulette;
welding machine for plastic pipes;
scissors for cutting PVC materials.

Almost all of the above can be found at home or purchased at a store at a modest price, with the exception of the welding machine. If you do not have it, and the need for it is only one-time, then you can rent it or ask your friends for a while.

Soldering iron device

Before figuring out how to properly solder plastic pipes, you need to study well how the soldering iron works for cutting them, and on what principle it works. This the welding machine is designed to connect plumbing structures made of plastic, and is equipped with a special sole with heating elements.

To make it more convenient to work, such a sole often includes holes with different diameters, where special nozzles for soldering pipes are attached. Thanks to the thermostat, the temperature indicators of the device are adjusted. Such a thermostat is located on the body of the soldering iron, and the power supply is turned on or off by means of additional switches equipped with light indication. The non is also equipped with an easy-to-use handle and a stand so that the device can be placed on a flat surface for stationary use.

Rules and methods for soldering PVC pipes

Soldering plastic or polypropylene water pipes must be carried out strictly in a certain sequence. It looks like this:

Pipes should be soldered taking into account many indicators, we give them below:

So, the soldering technique is as follows:

take special scissors for plastic and use them to cut the pipe to the desired size;
using an alcohol composition, clean the pipe joints from grease and dirt;
we put the mating socket and the pipeline into the nozzle and heat it for the time that corresponds to the parameters of the material;
after warming up, the parts are connected to each other, the pipeline is inserted into the socket;
at the end of the work, check that the welded joint is High Quality... Plastic rings should appear at the joints.

So, above we have already figured out how to properly solder plastic using a soldering iron water pipes... But remember that the installed water supply system can work for a long time and without problems, it is recommended to follow some recommendations.

First of all, during operation, be sure to keep in mind that the nozzles on the device have a Teflon coating, which does not allow the formation of carbon deposits. After each use of the appliance(after welding) be sure to remove the reflow residues with a wooden spatula... It is forbidden to remove them after the nozzles have cooled down, as this can deform the coating and also cause damage to the device.

It is possible to carry out initial welding only five minutes after the welding soldering iron warms up, and if it comes about the connection of reinforced pipes, then you need to remove with the use of a shaver two outer layers of construction:

aluminum;
polypropylene.

And only then the elements can be connected according to the method.

All types of welding should be carried out exclusively at positive temperatures. the environment.

And the last thing - all work must be done confidently, all elements must be placed on the same axis. If the connection is performed poorly, then you will need to cut off the knot and weld it again.

Particular attention should be paid to the installation of such fixed elements as:

bends;
fitting;
valves;
tees;
adapters.

Quality of welded joints can be bad if basic safety rules are not followed when working with welding equipment. Take into account all the above rules and recommendations so that your water supply system is installed efficiently and quickly, and then can serve for many years.

Polyethylene pipes produced mainly from HDPE (polyethylene low pressure), occupy a firm place in many spheres of industry, construction and everyday life due to the presence of many technologically advantageous characteristics. This necessitates optimal ways their connection, without which the process of installation and arrangement of pipeline lines is impossible.

Varieties of polyethylene (PE) pipe connections

Among different types connections between polyethylene pipes are split and one-piece.

The split method allows disassembling the assembled structure at the end of operation. Accordingly, it is optimal in cases where there is no need for its long-term use. A similar connection of pipes is carried out by means of steel flanges.

More durable and more often used in practice is the one-piece connection. It is carried out by welding or soldering PE pipes, which, in turn, can be butt or socket. Both methods are effective and reliable, allowing you to obtain monolithic strong connections.

Butt welding of polyethylene pipes

For butt welding of polyethylene pipes, special welding equipment is required. This connection method is effective for brazing HDPE pipes only. Its versatility lies in the fact that it allows the structure to be flexible throughout its entire length. This method can be used both for trenching and open way pipe laying.

Butt soldering of HDPE pipes is performed in the following sequence:

Installation of the ends of the welded products in the centralizer of the welding equipment.
Alignment and tight fixation of parts.
Cleaning the end sections from dirt, dust, grease, other blockages and layers (carried out by means of a cotton cloth soaked in alcohol).
Processing of end fragments by means of a facing device (trimming). The process is carried out until uniform chips appear, not exceeding 0.5 millimeters in thickness.
Removing the workpieces and checking the ends by hand for parallelism. If a significant gap between the surfaces is detected, re-trimming until the necessary conformity is obtained.
Heating of the ends of the blank tubes with a heating element, the surface of which is covered with a non-stick layer.
Upon reaching some melting of the workpieces, removing the heating element and closing the ends of the pipes to be welded. The contact pressure is increased until a complete and firm closure is achieved. The products should be kept for some time (usually 5-10 minutes) until the joint is completely hardened.
Quality control of the welded structure. Evaluated appearance welded ends, their correspondence with each other and the strength of the soldering.

Apart from the welding process, it is important to pay extra attention to the preliminary work listed in the starting points. They should be carefully performed before brazing HDPE pipes, since the reliability and strength of the joint produced largely depends on this.

A prerequisite for high efficiency butt welding is performed with one seam. Only in this case is the maximum strength of the welded joint achieved, otherwise it may turn out to be insufficient.

Socket welding of HDPE pipes

The coupling method for soldering polyethylene pipes is carried out using a special device called a soldering iron, and a set of special nozzles of the required diameter. In the welding process, fitting products are used: couplings, tees or angles. The ends of the workpieces to be joined are welded to the fittings, which serve as connecting elements.

If you have the necessary soldering unit, you can solder HDPE pipes with your own hands. This work is not very difficult and is within the power of any home craftsman.

Before soldering the HDPE pipe with your own hands, you should do some preliminary work, in particular:

Cut the workpieces with special scissors to the right sizes... The cuts must be strictly perpendicular to the longitudinal axis of the workpieces.
Clean the end areas of the products to be joined.
Plug the ends of those pipes that are not currently being welded with plugs to avoid contamination and cooling.
Clean the heated surfaces of the soldering unit from clogging and particles that could remain from previous work.

Heating the soldering iron nozzles to the required temperature. When the heating reaches the required values, the indicator on the device body gives a special signal.
The HDPE pipe is fully inserted into the sleeve, and the fitting is also pushed all the way onto the mandrel. This step may require some effort.
As the pipe is inserted and the fitting is pushed onto it, excess molten material is squeezed out from the surface of the product. As a result, a kind of annular bead, called burr, is formed in the region of the welded edge.
The parts to be connected are removed from the nozzle, after which the pipe is inserted into the fitting so that it is tightly in contact with the annular bead. Read also: "".
Waiting for the welded pipes to cool down without exposing them to any external influences.

Due to the fact that it is difficult to identify the exact depth of immersion of the pipe during the welding process, it should be measured in advance and a corresponding mark should be made on the surface of the product.

Electrofusion welding

A special type of socket welded joints of PE pipes is the electrofusion method, which makes it possible to obtain structures of high strength. For its implementation, it is necessary to use a special electrofusion coupling for HDPE, equipped with embedded heating elements. The welding process is also performed using welded HDPE fittings equipped with heating coils. Due to heating and partial melting of the fitting material, a connection with a polymer pipe is achieved and the formation of a monolithic structure.

Elements and parts used in this method are rather expensive, but the advantages of electrofusion welding are the absence of burr formation, which reduces the permeability of pipes, and the ability to weld parts in a confined space, where it is impossible to install large-scale welding equipment.

Electrofusion welding between PE pipes is carried out in the following sequence:

The pipes are cut into the required lengths by means of special cutting tools.
The parts to be welded and the electrical coupling itself are cleaned of dust, dirt and grease.
Marks are made on the pipes to control the depth of insertion into the sleeve.
Those pipe ends that are not currently being welded are plugged to avoid unwanted cooling.
The electrical coupling is connected to the welding device by means of wires.
The welding process is started by means of the start button of the device.
At the end of the welding process, the machine switches itself off.
Wait at least one hour for the welded joint to harden and fully ready, after which it becomes usable.

An important condition for obtaining a high-quality welded joint is the preservation of the immobility of the parts during the soldering process and subsequent cooling. One of the indicators of the quality of the weld is the thickness of the bead, which should be from one third to half the thickness of the pipe itself. The roller should overlap the mark previously made on the pipe. The displacement of the pipe sections to be welded relative to each other should not exceed 10 percent of the thickness of their walls.

The choice of soldering method for HDPE pipes

Not each of the listed options may be suitable for connecting HDPE pipes in certain conditions. Various methods have their own advantages and disadvantages, and along with this there are a number of factors that also determine the answer to the question of how to solder polyethylene pipes in a particular situation.

The coupling method is optimal in cases where it is necessary to solder in places that are difficult to access for work. Since in such a situation axial displacements of the products relative to each other are difficult, butt welding becomes impossible, and the only acceptable method is a sleeve connection.

In the most inaccessible areas, with a strong limited space for work, HDPE pipes are soldered using an electrofusion method. Another significant advantage of this method is its speed, which is also sometimes important.

Finally, in cases where there is a need for a disposable pipe connection to perform a certain short-term work, soldering is not required at all, and a temporary detachable connection can be dispensed with.

Pipelines made of high molecular weight compounds, that is, various types of plastic, are an integral part of a modern home, be it private cottage or apartment in multi-storey building... Polymer pipes are rapidly gaining popularity: they are lightweight, inexpensive and have good technological characteristics... They are easy to assemble into a single circuit using soldering (welding); This article will show you how to properly solder plastic pipes.

The advantages of polymer pipes

Plastic products have become widespread not only in the field of housing and communal services, but also in other areas of human activity. Many grades of plastic and a wide range of sizes allow each craftsman to choose a product for their purposes and choose a method for soldering plastic pipes for a water supply system.

Advantages of plastic pipes:

unlike metal products, they are not prone to corrosion;
chemically indifferent - do not interact with most acids, alkalis, salt solutions, gas and oil refining products;
biologically resistant - including to the action of various microorganisms;
have good sound insulation;
low heat transfer coefficient, that is, excellent thermal insulation;
light weight, facilitating the transportation of pipes to their destination, their laying, subsequent repair and dismantling;
environmental safety - products do not emit harmful substances into the atmosphere;
ease of connection of individual elements into contours of any complexity and length;
the ability to use products for both hidden and external laying;
long service life - subject to all operating conditions and the absence of external threats, the period, depending on the brand of plastic, is 50 years or more;
ability to withstand high pressures: at a temperature of 0 ... 10 ° C the maximum allowable pressure inside the system is 15 bar, at elevated temperatures (up to 95 ° C) - 2 bar.

The products are quite environmentally friendly, as a result of which they can be used in water supply circuits - both cold and hot - and heating.

Plastic pipes can be connected with similar products made of metals and alloys using special connecting fittings with metal inserts.

How to solder a plastic pipe and how to use a pipe soldering iron is easy to learn with the help of reference materials or video tutorials, the process is not difficult and every home craftsman can do it.

What equipment is required for soldering

Most home water supply or heating systems are constructed from pipes with outer diameters ranging from 16 ... 63 mm. It is recommended to weld products in the socket or using connecting fittings (couplings).

The choice of soldering irons today is large enough to accept correct solution, you need to take a closer look at their main operational characteristics:

Power. The most important parameter. For a home craftsman using plastic pipes of standard diameters, a power of 1200 W will be enough. Soldering of plastic pipes with units with a power of 1800 W or more is much easier and faster, however, for home use the minimum specified power will be sufficient.
Number of attachments. The number of nozzles supplied in the kit is different in each case, and the more, the better. The nozzles are exactly what plastic pipes are soldered with. Good elements should be coated with Teflon to prevent the material from sticking. Each nozzle consists of a sleeve for melting the outer surface of the products and a mandrel for the inner part of the pipes.
If there are material possibilities, you should purchase a soldering iron, on which you can simultaneously install several nozzles at once: this will significantly save time, since to replace the nozzle, you need to cool the tool every time, and then, to resume work, heat it up again.
Expensive professional soldering irons are equipped with a unit for electronic regulation of the heating temperature, which allows you to set its value with an accuracy of 1-5 ° C. A master who wondered how to solder pipes with a soldering iron does not need to buy expensive products, but to measure the temperature of the nozzle using an appropriate thermometer.

In addition to a soldering iron, scissors will be needed to cut polymer pipes. You can, however, get by with a hacksaw.

It is necessary, among other things, to purchase auxiliary materials - a marker, ruler, tape measure, cloth or rags - and directly pipes for water supply and connecting fittings (fittings).

Using a soldering iron

Algorithm of actions for soldering polymer pipes:

Install the soldering iron on a plane parallel to the floor and fix the nozzles of the required diameters on it using the supplied keys. The soldering nozzle on the wall is installed closer to the edge than the others.
Preheat the soldering iron with the attachments installed to the operating temperature indicated above. The warm-up time is different for each instrument; in most cases it is 10-15 minutes (read also: "").
Until the end of the work, you cannot turn off the device from the network: this will not only slow down the process, but also negatively affect the performance of the soldering iron.
The parts to be joined heat up at the same time.
After heating, plastic contamination must be removed from the attachments immediately with a piece of tarpaulin, without allowing them to cool and dry to the surface.

Pipeline installation

Procedure:

Using scissors, cut off the required piece of pipe, making sure that the plane of the ends is perpendicular to the longitudinal axis of the pipe.
Prepare fittings of the required diameter - slightly smaller when cold than the outside diameter of the pipe.
The surfaces of the elements to be connected must be cleaned of all contaminants and degreased - you can use both soapy water and alcohol.
Install the elements on the soldering iron nozzles and warm them up; a pipe is inserted into the sleeve, a coupling is put on the mandrel.
Withstand the required warm-up time specified in the instructions supplied with the soldering iron.
Remove the elements from the attachments and press firmly against each other, preventing them from rotating around the axis.
As a result, a burr appears at the edge of the sleeve - a bead of material formed during melting.
Allow the compound to cool naturally.

If the connection fails, cut out the damaged piece of pipe and repeat the process with a new coupling.

For a craftsman interested in how to solder PVC pipes, you should be aware that these products are not hot-soldered, but are connected using polymer glue - "cold welding". In terms of strength, such a connection is not inferior to that described above.

If you made a decision on their own make plumbing for your home, then know that the best material for this there will be plastic pipes. In order to connect pipes into a single system, you need to imagine how plastic is welded. However, do not let this scare you, since the process of soldering plastic pipes itself is not particularly complicated and does not require a large number of special tools.

For the production of welding you will need:

roulette,
marker,
building level,
scissors for cutting plastic pipes,
welding device for plastic pipes.

Almost every artisan has all the tools except the last one. You may need the latter only once in your life, so it is much more expedient not to buy it, but to borrow or rent it.

Briefly about the welding machine

Before you start soldering, you should briefly familiarize yourself with the device you are going to use.

An important element of the welding machine is the sole, which is equipped with heating elements. The convenience of work is ensured by the fact that there are holes on the sole that allow you to fix special nozzles for soldering. Temperature control is carried out using a thermostat located on the body.

Pipe brazing process

Before soldering, the device must be installed in the desired position and nozzles of a suitable size must be fixed on it. Using the thermostat, set the required temperature:

260 ° С for polypropylene pipes,
220 ° C for polyethylene pipes.

Let the device warm up for 10-20 minutes until the indicator goes out.

When soldering, it is necessary to proceed from the following data:

The soldering process is reduced to the following operations:

Using special scissors, cut the pipe to the required length using alcohol solution clean the joints from dirt and grease,
Install the pipe and the mating socket in the nozzle and warm up for the time indicated in the table,
Connect the heated elements to each other by inserting the pipe into the socket. This operation must be performed within the time specified in the table as a technological pause,
After completing the operation, check the quality of the resulting welded joint, which will be noticeable in the form of plastic rings.

We have just outlined the essence of the soldering process. However, to ensure the reliable functioning of the pipeline, attention should be paid to the following details:

The first welding operation should be performed five minutes after the soldering iron warms up.
If you need to weld reinforced pipes, you should use a special tool called a shaver to remove the aluminum and polypropylene from the pipe, which form the top two layers. After that, the pipes are joined according to the already described method.
Welding work should only be done when the ambient temperature is above freezing.
After welding, allow the connected pipes to cool, not allowing them to twist or move. In the event that the connecting seam is of poor quality, the knot must be cut and the welding process must be repeated.

When working with a welding machine, certain precautions must be observed, non-observance of which may affect the quality of welded joints. In particular, it must be remembered that the tips are Teflon coated to prevent the formation of carbon deposits. At the end of each operation, the melted residues must be removed from them with a wooden spatula. It is strictly forbidden to remove material residues after cooling the attachments, as this could damage the coating and cause malfunction of the entire device.

How to properly solder plastic pipes with your own hands - detailed instructions
This step-by-step instruction on self-soldering of plastic pipes will help you assemble a water supply system for your home with your own hands, without involving specialists. Detailed description work, video.

Gasket material manufacturers engineering networks offer wide choose modern solutions which replaced the traditional ones. In particular, this applies to pipes for installation in a house or apartment of a water supply system, a hot water supply branch, a radiator and a floor heating system... To lay or repair a local pipeline made of polymer pipes (polyvinyl chloride, polypropylene), you need a special tool and some skill in working with it. Soldering plastic pipes is not a difficult job, but it is important to understand the technology and take into account a number of points in order to get a reliable and durable result.

Soldering tool for plastic pipes

Pipe brazing machine

In everyday life, a special apparatus is used, designed to connect a polymer pipe to the corresponding fitting or coupling. Maximum permissible pipe diameter that can be handled House master, 63 mm. Large diameter pipes are predominantly butt-welded using professional equipment.

The soldering tool for home use is a unit equipped with a stand, the working part of which heats up to a predetermined temperature. The heating element (sole) is equipped with holes for installing nozzles of various diameters (from 16 to 32 mm).

Soldering machine for plastic pipes

Apparatus differ in design:

There is no fundamental difference which one to use for soldering plastic pipes with your own hands. In any case, strict adherence to the instructions will help to get the desired result.

Secrets of high-quality soldering

Soldering of pipes should be carried out in a room with a positive temperature, while the colder the air, the longer it will take to warm up plastic or metal-plastic parts for a tight and durable connection.

Secrets of high-quality soldering

In order to prevent common mistakes when installing pipes for heating or water supply, pay attention to the following recommendations:

Security measures

It is important not only to know how to solder plastic pipes, but also to follow safety precautions when working with a power tool so as not to get burned or injured.

It is important to use protective gloves

Always use protective gloves when working.
Pay attention to the cleanliness of the floor, the dustiness of the room. Dirt trapped in the molten plastic impairs the quality of the weld and makes the joint look unaesthetic.
The soldering unit must be located on a horizontal flat surface.
During the entire working process, the unit is not de-energized.
It is possible to start welding the elements only after the soldering iron has completely warmed up. Have modern models a disabled indicator informs about the exit to the operating mode. Using your old appliance, wait about 20 minutes from the moment you turn it on.

Let's consider in detail how to properly solder plastic pipes at home. At the preliminary stage, it is required to prepare all the necessary tools:

tape measure and marker,
file or file,
fine grain sandpaper,
pipe cutter,
sharp assembly knife,
soldering iron for welding plastic.

You will also need rags and alcohol (or other degreasing agent) to process the surfaces to be soldered.

Preparing the elements

The pipes are cut to the required length using a special pipe cutter or a sharp assembly knife. Make sure that the cut is strictly perpendicular, otherwise it will not be possible to make a tight connection.

Next, you need to process the edge of the pipe. It is advisable to use a special tool - a shaver, but in its absence it is enough to use a mounting knife (used to remove burrs), after which the edge of a regular pipe made of propylene or fiberglass reinforced must be processed to smoothness using a file, fine-grained skin.

Important! For aluminum-reinforced PVC pipes, it is recommended to remove the top layer of polymer and foil at the edge in order to improve the quality of the connection.

After making sure that the smoothness of the treated edge is practically not inferior to the inside of a fitting purchased in a store, you can begin to solder the elements, having previously degreased the surfaces to be joined with alcohol.

Soldering technology

Consider how to use a soldering iron and what temperature regime need to choose for plastic pipes different types... DIY polymer pipeline installation is performed in several stages:

The soldering unit is securely fixed on the platform and installed on the working part of the nozzle of a suitable diameter.
The electric soldering iron is turned on after setting the required temperature. To solder polypropylene parts to each other, the working part needs to be heated to 260 ° C, when welding PVC products, heating to 220 ° C is required.
After the device has warmed up, the fitting and the prepared edge of the pipe are put on the nozzles and the parts are heated for a few seconds (the exact heating time is indicated in the table below, it depends on the diameter of the elements).
After waiting for the required time, the parts are neatly joined together and left to cool completely. All other elements of the pipeline are fastened in the same way.

The pipe welding depth matches the parameters of the inner part of the fitting - the soldering iron nozzles heat the elements to the same depth to ensure maximum contact between the surfaces for better adhesion.

Soldering process technology

The method of connecting polymer pipes using temperature welding is quite simple, if you master the skill of accurately connecting heated elements, know how to solder parts. Once the pipe is inserted into the fitting, it is not moved or rotated so that the heated polymer can form a monolith. If the place of the joint is moved until the material solidifies, the polymer will collect in folds and the joint will be depressurized.

Checking the quality of the connection

Checking the tightness of the joints starts after all the joints are mounted and have had time to cool. To do this, water is poured into the finished system and the pipeline is inspected to identify leaks. Before filling with water, let the installed system stand for at least an hour at normal room temperature, and if the air in the room is cooler, then the pre-check pause should last at least 2-3 hours.

If loose joints are found, it is necessary to drain the water from the system, remount the pipeline section by installing new fittings and taking a piece of pipe of the appropriate length. An attempt to somehow seal up a leaky connection or solder it with an electric soldering iron is doomed to failure in advance. Installation of a polymer pipeline requires strict adherence to technology.

An example of a good connection

At the end renovation works re-check the tightness of the system by pouring water into it. If we are talking about a heating system, the pipeline will pass this test only after heating the coolant in the boiler, at elevated temperatures and pressures.

Conclusion

Instructions on how to solder plastic pipes allows you to understand the technology of the process. If there is a need for one-time work, it is economically unprofitable to buy an electric soldering iron for pipes, it is easier to rent a tool from a company that provides such services.

When planning for the first time independent work, it is advisable to buy material with a small margin. Knowing only in theory how to solder pipes, before starting work in the house, you need to practice. If the experience turned out to be unsuccessful, entrust the installation or repair of pipelines in the house to professionals.

How to properly solder plastic pipes with a soldering iron
How to independently solder plastic (pvc) pipes with a soldering iron so that the connection is reliable. Learn the methods and secrets of soldering plastic pipes for heating from experienced craftsmen.

PVC (polyvinyl chloride) pipes are an optimal alternative to metal analogues in the field of water supply, sewerage and heating. The peculiarity of pipelines made of them is that during their installation welding in the traditional sense, that is, with the help of a welding machine, is not used. The connection is carried out using a special soldering iron, glue, couplings or flanges. The exception is threaded casing products.

Soldering of PVC pipes is carried out hot or cold

Advantages and disadvantages of PVC pipes

These products are made from unplasticized polyvinyl chloride in the form of one- or three-layer tubular products. Their delivery is carried out in standard lengths of 600, 300, 200, 100 and 50 cm. The main advantages of PVC pipes include:

long service life,
resistance to corrosion and aggressive environments,
good throughput,
antistatic and explosion-proof,
light weight,
the ability to do it yourself,
relatively low cost, etc.

Along with the above advantages, these products have a number of disadvantages. The main one is the limited operating temperature range. Polyvinyl chloride pipes are capable of long-term transport of the working environment with a value of this parameter only + 45˚С, and short-term + 65˚С. At low temperatures this plastic becomes brittle. In addition, although polyvinyl chloride does not support combustion, heating this material above + 120 ° C causes its decomposition, accompanied by the release of suffocating and toxic hydrogen chloride. The combination of the above factors makes it impossible to use PVC pipes for the arrangement of industrial sewage systems.

The properties of PVC pipes significantly limit the scope of their application.

Methods for soldering PVC pipes and the necessary equipment

Soldering PVC pipes is carried out in several ways. The choice of a specific technology depends on the type of pipeline - gravity or pressure. In multi-storey residential buildings and country cottages along with pressure water pipelines, sewerage systems, mainly of the first type, are being created. Welding of their components is done in two ways:

soldering with a special soldering iron,
"cold welding". Simplicity is the main advantage this method... To solder the elements of a plastic pipeline with your own hands, it is enough to use a special aggressive glue that can dissolve hard plastic.

Helpful advice! Even knowing how PVC pipes are cold welded, take precautions. It is necessary to work with goggles and gloves.

The aforementioned special soldering iron is equipped with a heating element in which the sleeves of the required diameter are fixed. The iron works (this is the name of this device in the slang of professionals) from an industrial network of alternating voltage.

For hot soldering of PVC pipes, a heating device with nozzles corresponding to the diameter of the pipes is used.

Today, there are many models of equipment in the trading network with which you can do the soldering of PVC pipes with your own hands. When choosing, pay attention to the presence of a temperature regulator and to the fact that the language in which the instruction is written is clear to you. Then you will be able to solder in compliance with all technology requirements, and the connection will be as reliable as possible.

Before buying a device, it will also be useful to pay attention to:

country of the manufacturer. This determines the cost and quality of the device,
material of manufacture of the device and level of assembly,
availability and set of nozzles. The set usually includes a pair of such accessories for several diameters,
power. To solder PVC pipes with a diameter of 16 ... 63 mm, a power of 680 watts will be enough. With a diameter of 63… 75 mm, you can buy an apparatus with a capacity of 850 watts. If the diameter exceeds 125 mm, opt for a more powerful device - from 1200 watts. According to experts, the optimal power of the soldering iron is 1.5 kW. Having bought a device with such a value of this characteristic, you will definitely not go wrong if you plan to solder pipes with your own hands at home.

How to solder PVC pipes

This procedure is carried out according to a single scheme and does not depend on the power of the soldering iron used.

You can cut pipes to the desired length using a hacksaw, but then a more thorough cleaning of the cut is required

The sequence of actions is as follows:

Prepare the joints. To ensure a perfect fit of the joined products, cut the ends of the pipes with a special pipe cutter.
Put a nozzle on the tip of the soldering iron that allows heat to pass to the joint.
Plug the soldering iron into a 220 volt household power supply and wait for it to warm up the nozzle.
Put a coupling sleeve on one of the ends of the heated nozzle, and insert the pipe into the other.
After the outer surface of the pipe and the inner surface of the coupling have warmed up, remove these elements from the nozzle.
Press the pipe into the sleeve by inserting one piece into another. Having cooled and hardened, PVC will restore its properties and as a result, a single crust is formed that insulates the joint.
After waiting for the final stabilization of the seam, repeat this procedure at the free end of the coupling with the next element of the pipeline.

Helpful advice! Make sure the cut is straight before you start soldering. To do this, make several control cuts, without fail observing an angle of 90 degrees. Remove any burrs with sandpaper.

For the cold method of pipe brazing, an adhesive composition is used

Now a few words about how to solder PVC pipes with your own hands using the cold welding method. Pre-apply marks on their surface and on the surface of the fittings, with the help of which, during installation, you will be able to correctly position these parts in space, taking into account the horizontal angle and the features of the wiring. Then apply glue to the ends of the elements to be connected, quickly connect and press them. Fix the pipes in the desired position for 15 seconds. You can supply water to them no earlier than an hour after the end of the work.

The main advantage of cold welding is the ability to install the pipeline in hard-to-reach places. And by observing simple recommendations and rules, you will eliminate the possibility of leaks. According to some reports, the service life of such a connection reaches 50 years!

Soldering is a reliable method of joining PVC pipes
Soldering PVC pipes. Advantages and disadvantages of PVC pipes. Methods for soldering PVC pipes and the necessary equipment. How to solder PVC pipes. Soldering with a special soldering iron. Cold welding.

Many people decide to make their own plumbing at home.

Practice shows that PVC-based structures are best suited for this purpose. And to do everything , soldering skills will be required.

Materials for work

To carry out competently welding work, you need to prepare such set of tools:

marker,
construction level,
roulette,
welding machine for plastic pipes,
scissors for cutting PVC materials.

Soldering iron device

Rules and methods for soldering PVC pipes

Soldering plastic or polypropylene water pipes must be carried out strictly in a certain sequence. It looks like this:

install the soldering iron in the desired position,
fix the nozzles in the holes in accordance with their dimensions, and then connect the device to the network,
if there is a need for local use of the device at the place of laying the pipeline, then in the extreme position of its sole, it is necessary to put that nozzle that has a diameter similar to the diameter of the pipes,
set the heating temperature using the thermostat on the device. It depends on what materials will be connected. If the pipes are polypropylene, then it is about 260 degrees, and if polyethylene, then 220 degrees, respectively,
then it is recommended to warm up the soldering device for 10-20 minutes, depending on the external conditions, until the indicator on it turns off.

Pipes should be soldered taking into account many indicators, we give them below:

if the pipe diameter is 20 mm, then the width of the welded belt should be about 15 mm, the parts should be heated up within 6 seconds, and connected within 4 seconds. The cooling time in this case is 2 seconds,
when the pipes have a diameter of 25 mm, then the welded belt must have a width of at least 15 mm and not more than 18 mm, respectively. Heating of parts lasts 7 seconds, connection - 4 seconds, and cooling down - 2 seconds, respectively,
with a diameter of 32 mm, the width of the belt will be about 20 mm, heating should last 8 seconds, connection 6 seconds, and cooling time 4 seconds,
the indicators differ significantly when using pipes with a diameter of 63 mm. The belt to be welded has a width of about 25 mm, the parts heat up for 24 seconds, connection time of parts - 8 seconds, and their cooling - 6 seconds.

So, the soldering technique is as follows:

take special scissors for plastic and use them to cut the pipe to the desired size,
using an alcohol composition, clean the pipe joints from grease and dirt,
we put the mating socket and the pipeline into the nozzle and heat it for the time that corresponds to the parameters of the material,
after warming up, the parts are connected to each other, we insert the pipeline into the socket,
at the end of the work, check that the welded joint is of high quality. Plastic rings should appear at the joints.

So, above we have already figured out how to properly solder plastic water pipes using a soldering iron. But remember that the installed water supply system can work for a long time and without problems, it is recommended to follow some recommendations.

It is possible to carry out primary welding only five minutes after the welding soldering iron warms up, and if we are talking about connecting reinforced pipes, then it is necessary to remove it using a shaver two outer layers of construction:

And only then the elements can be connected according to the method.

All types of welding should be carried out exclusively at a positive ambient temperature.

And the last thing - all work must be done confidently, all elements must be placed on the same axis. If the connection is performed poorly, then you will need to cut off the knot and weld it again.

Particular attention should be paid to the installation of such fixed elements as:

How to properly solder plastic pipes for plumbing
Features of the connection of pipes for water supply based on plastic and polypropylene. What are the rules for high-quality soldering, useful tips and recommendations.

Manufacturers of materials for the laying of utility networks offer a wide range of modern solutions that have replaced the traditional ones. In particular, this applies to pipes for installation in a house or apartment of a water supply system, a hot water supply branch, a radiator and floor heating system. To lay or repair a local pipeline made of polymer pipes (polyvinyl chloride, polypropylene), you need a special tool and some skill in working with it. Soldering plastic pipes is not a difficult job, but it is important to understand the technology and take into account a number of points in order to get a reliable and durable result.

Soldering tool for plastic pipes

Pipe brazing machine

In everyday life, a special apparatus is used, designed to connect a polymer pipe to the corresponding fitting or coupling. The maximum allowable pipe diameter that a home craftsman can handle is 63 mm. Large diameter pipes are predominantly butt-welded using professional equipment.

Soldering machine for plastic pipes

Apparatus differ in design:

xiphoid;
cylindrical.

There is no fundamental difference which one to use for soldering plastic pipes with your own hands. In any case, strict adherence to the instructions will help to get the desired result.

Secrets of high-quality soldering

In order to prevent common mistakes when installing pipes for heating or water supply, pay attention to the following recommendations:

The power of the household tool should be 1200 watts.
The device for home use is designed to work with pipes with a diameter of up to 32 mm, in other cases, you must use a professional soldering iron.
Before you start soldering, warm up the device for at least 5-10 minutes so that the working part with nozzles is heated to the specified parameters.
Having welded the elements of the pipeline together, do not twist them and do not displace the seam, so as not to violate its integrity. It is only allowed to carefully straighten the distortions, otherwise the seam will leak under load.
Do not squeeze the parts together too much. As the molten plastic will press inward and reduce the bore of the fitting, which will degrade the performance of the system.
Do not leave gaps between the edge of the pipe and inside fitting. Such a connection will leak under pressure.
Be sure to allow the soldered joint to cool completely before subjecting it to stress.
After each soldering operation, clean the nozzles from traces of melted plastic. This will prevent the formation of carbon deposits, as well as damage to the elements that need to be soldered.
Use a flat wooden stick to clean the attachments. This will protect the Teflon coating from damage. Do not use metal objects, as scratches will make the attachment unusable, and plastic will stick to it and burn.

Attention! Before proceeding with the installation of the pipeline, watch a detailed video instruction and practice on unnecessary cuts of plastic pipes.

Security measures

It is important not only to know how to solder plastic pipes, but also to follow safety precautions when working with a power tool so as not to get burned or injured.

It is important to use protective gloves

Always use protective gloves when working.
Pay attention to the cleanliness of the floor, the dustiness of the room. Dirt trapped in the molten plastic impairs the quality of the weld and makes the joint look unaesthetic.
The soldering unit must be located on a horizontal flat surface.
During the entire working process, the unit is not de-energized.
It is possible to start welding the elements only after the soldering iron has completely warmed up. In modern models, a disabled indicator informs about entering the operating mode. Using your old appliance, wait about 20 minutes from the moment you turn it on.

Work progress

Let's consider in detail how to properly solder plastic pipes at home. At the preliminary stage, it is required to prepare all the necessary tools:

tape measure and marker;
file or file;
fine grain sandpaper;
pipe cutter;
sharp assembly knife;
soldering iron for welding plastic.

You will also need rags and alcohol (or other degreasing agent) to process the surfaces to be soldered.

Preparing the elements

Using a shaver

Important! For aluminum-reinforced PVC pipes, it is recommended to remove the top layer of polymer and foil at the edge in order to improve the quality of the connection.

Soldering technology

Let's consider how to use a soldering iron and what temperature regime you need to choose for different types of plastic pipes. DIY polymer pipeline installation is performed in several stages:

The soldering unit is securely fixed on the platform and installed on the working part of the nozzle of a suitable diameter.
The electric soldering iron is turned on after setting the required temperature. To solder polypropylene parts to each other, the working part needs to be heated to 260 ° C, when welding PVC products, heating to 220 ° C is required.
After the device has warmed up, the fitting and the prepared edge of the pipe are put on the nozzles and the parts are heated for a few seconds (the exact heating time is indicated in the table below, it depends on the diameter of the elements).
After waiting for the required time, the parts are neatly joined together and left to cool completely. All other elements of the pipeline are fastened in the same way.

Soldering process technology

Checking the quality of the connection

An example of a good connection

At the end of the repair work, re-check the tightness of the system by pouring water into it. If we are talking about a heating system, the pipeline will pass this test only after heating the coolant in the boiler, at elevated temperatures and pressures.

Conclusion

When planning to carry out independent work for the first time, it is advisable to buy material with a small margin. Knowing only in theory how to solder pipes, before starting work in the house, you need to practice. If the experience turned out to be unsuccessful, entrust the installation or repair of pipelines in the house to professionals.