Soldering polypropylene pipes with your own hands: technology, instructions, video. Soldering polypropylene pipes: an overview of the nuances of welding technology How to solder propylene pipes

The range of construction products is growing every year. appear on the market modern materials, which facilitate the construction stages and increase the productivity of workers. Consumers tend to use when planning internal systems in houses there are pipelines with a long service life. Plastic internal communications branches have become a suitable alternative that meets consumer needs. How to solder plastic pipes?

Another advantage of such technologies is the ability to independently repair or replace water supply and heating networks. How to solder plastic pipes for water supply?

Let's understand the types

Metal-plastic

Polyethylene

Such communications are divided into subtypes:

1. Polyethylene - used for laying wiring inside buildings and external routes. They can be used on pipe connections high blood pressure and at low ambient temperatures.
2. PVC is used to reduce the cost of repairs.
3. Metal-plastic - the most practical products, for a period of time beneficial use more than 50 years. Perfect option to replace hot water supply.

The widespread use of this material is due to a number of reasons. Positive properties of such structures, in contrast to metal ones:

1. Long service life.
2. Low corrosivity.
3. Easy to install.
4. Does not require special skills.
5. Environmentally friendly material.
6. Economical and easy to use.
7. Lightweight and easy to transport.
8. They don't give in harmful effects microorganisms.

Your water supply

Coupling assembly

Polyethylene models are mounted using the welded method or using couplings/fittings (coupling assembly). How to solder plastic pipes for water supply?

For new water supply networks, products made of PVC and polyethylene without reinforcement or reinforcement are suitable. Preparation requires creating a diagram of the future water supply indicating the lengths of the branches, its position and all the fittings necessary for installing the structure. Correct calculation of the lengths and number of bends will simplify the technology, increase the speed of task completion and prevent rework.

Soldering iron

Pipe cutter

To solder polyethylene connections you will need:

1. Soldering iron.
2. Pipe cutter
3. A trimmer for cutting pipes and trimming the edges of cut ends.
4. Fine sandpaper for cleaning edges
5. Connecting coupling (if coupling assembly)

The heating device is a special device with a sole with special nozzles of various diameters attached to it. There are devices that include two or more attachments at the same time.

The stages of technology for laying hydraulic communications will tell you how to learn to solder:

1. We measure the required length with a tape measure.
2. Use a pipe cutter to cut the measured length.
3. Trim the cut ends. This important stage when soldering. The cuts must be smoothly sanded and cleaned. To be more sure, you can additionally degrease it with an alcohol solution.
4. We solder the ends. If a coupling connection is used when installing life support networks, then we install a coupling/fitting at one end of the structure and heat it together with the future return in a soldering iron nozzle of the required diameter. After warming up, immediately connect the ends and wait for the assembly to cool completely. The quality of welding is indicated by the presence of a shoulder.

Attention! When installing heat and water supply using a soldered seam, it is strictly forbidden for water or moisture to fall into the cavity or onto the surface. When heated, water, turning into steam, deforms the plastic structure, as a result of which it loses its strength.

What to pay attention to

Temperature conditions for soldering are described in the instructions for the tool. Installed on modern products auto mode heating depending on the size of the mounted network and welding depth. On previous brands, the heating strength was selected manually.

At what temperature should plastic pipes be soldered? When soldering polyethylene risers, we set the temperature regulator at around 220 ° C, for polypropylene risers - 260 ° C. There is an indicator on the heating mechanism that shows the device is ready for use. The indicator lights up only in heating mode.

The duration of soldering depends on the circumferential radius of the pipeline, and can range from 5 to 40 seconds. The ends should not be overheated. This can cause a blockage to form at the adhesion site.

If you need to install a water supply of the same size, you should not overpay for the number of nozzles and the presence of a temperature mechanism.

If you plan a large volume of long-term production using networks of various sizes around the circumference, then we purchase a universal device for connecting to the latter technical capabilities and characteristics.

Soldering nuances

Knowing the technology for connecting autonomous communications is not enough. For quality installation you need to know a number of features of laying and soldering housing branches. How to solder plastic pipes correctly? To ensure professional assembly of technological buildings, it is necessary to remember some connection nuances:

1. A warm-up time is provided for soldering assembly. This time ranges from 5 to 20 minutes.
2. The production of in-house life support should be carried out at temperatures above zero.
3. After soldering the ends, it is necessary to prevent them from scrolling or moving; it is enough to smoothly eliminate distortions. You need to let them cool. Turning the weld seam may cause a leak in the future. It takes the same amount of time to cool down as it does to solder it.
4. Required power soldering tool – 1200 W.
5. Home soldering irons are designed for soldering wires with a diameter of up to 32 cm. If you need to assemble products of large diameter, then we purchase a professional soldering device.
6. Between the edge of the pipeline and internal thread there should be no gaps in the fitting. Gaps may leak when high blood pressure water. Excessive force when compressing elements can lead to a decrease in the clearance in the cavity and impair the performance of the entire structure.
7. Residues of material from the nozzles should be removed after each pack produced. Since the nozzles have a special coating, carbon deposits should be removed wooden device so as not to damage the integrity of the surface. Scratches on the surface of the nozzle will worsen the technological characteristics of the device and render it unusable for further use.

Thinking about how to make heating?

Installation of heat supply has a number of difficulties. The installation of heating models can be carried out in rooms with low temperatures, which complicates the soldering process. For heat supply, systems are developed depending on the temperature of the water supplied to the system and the operating pressure. The use of plastic in construction has increased productivity and reduced construction costs. required material.

Heating pipes are reinforced with fiberglass, which makes this material strong and durable.

Health protection and working conditions

When carrying out work related to heating heating main joints, we follow safety rules to prevent injuries and burns:

1. We solder using special protective gloves.
2. We monitor the cleanliness of the floor in the room. Dirt will negatively affect welding quality and appearance the entire structure.
3. The soldering iron is installed on a level horizontal surface.
4. It is necessary to start working after the device has completely warmed up, after the readiness indicator has turned off.
5. We don’t turn off the flashlight electrical network throughout the installation.

Soldering plastic pipes with your own hands is not difficult. The soldering process does not require professional skills or experience. Install life support networks in own home everyone can. The mandatory composition of the required tool includes only a soldering device. The remaining auxiliary tools can be replaced with improvised means, a pipe cutter - with a sharp knife. Pipeline from polyethylene structures and PVC - a reliable, durable and environmentally friendly system for water supply and heating.

Choosing a soldering iron for polypropylene pipes

Poly propylene pipes today they have almost completely replaced the previously used metal ones. However, if the latter were connected exclusively through threaded connections, then to connect plastic parts Today they use special equipment and tools. One of them is a soldering iron for polypropylene pipes (it is sometimes called an iron).

This device is especially popular among craftsmen who independently install heating systems and plumbing, without the help of specialized companies. What characterizes this popular instrument today?

Types of soldering irons

The design of the machine for soldering polypropylene pipes is quite simple. It consists of a heating element that transfers heat to a metal plate that has holes for nozzles.

The main task of the soldering iron is to maintain the required temperature at a constant level. The main difference between these devices is the method of attaching the nozzle to the heating surface.

In Russia, sword-shaped soldering irons and corresponding nozzle designs are more common. This is due to the relatively low price and large assortment. However, among professional tools you can increasingly find cylindrical heating devices.

Soldering iron for soldering sword-shaped polypropylene pipes

Another main criterion when choosing a soldering iron is constant temperature. The reliability of the pipe connection depends on this characteristic. On sale you can usually see a whole set for soldering pipes. It includes the soldering iron itself, several attachments, and sometimes the kit is supplemented with scissors for cutting pipes.

Soldering iron power for polypropylene pipes

The heating speed depends on its value. All tools of this kind are designed to use a 220 volt network. For installation of pipes in domestic suitable conditions soldering iron with a power of 700 to 1200 watts.

The minimum power is sufficient for soldering pipes with a diameter of 16-63 mm. When connecting pipes with a diameter of 75 mm, you will need a soldering iron with an output of at least 850 W. And 1.2 kW must be used when soldering products with a diameter of up to 125 mm. In any case, if you are connecting yourself, you will need a soldering iron for soldering polypropylene pipes with a power of no more than 1.5 kW.

Any soldering machine is equipped with a thermostat located directly on the body.

Optimal temperature for soldering +260С. At a lower temperature, the pipe fits into the nozzle for too long and too tightly, which does not ensure a good connection between the fitting and the pipe.

The thermostat automatically turns off the tool when the set temperature is reached (this is indicated by a light bulb or LED).

Iron attachments

Most efficient use soldering iron is possible only if several attachments are installed on it at the same time. And indeed, change them when the soldering iron is hot #8212; a very dubious pleasure. Produced nozzles for soldering iron polypropylene pipes allow you to connect products different diameters.

Welding machine complete with nozzles

In the manufacture of nozzles, various coatings are used to increase their strength and durability. Most often this is Teflon (or metallized Teflon, which is a more durable option).

To extend their service life, before starting soldering, be sure to remove any melt residue remaining from previous work.

Cost of the device and fittings

All manufacturers recommend using a soldering iron for plastic pipes with a diameter of 16-63 mm, having a power of 680 W. If it is necessary to connect pipes with a diameter of up to 75 mm, then the power should be greater - up to 850 W. When working with large diameters, up to approximately 125 mm, experts recommend using soldering irons with a power of 1200 W.

Soldering iron attachments

Soldering iron attachments for pipes. The size of the nozzle depends on the diameter of the plastic pipe

As a rule, when connecting polypropylene pipes in large volumes, already ready-made blocks. But this is not always beneficial for the home; there may be a need to install just a few separate pipes, so when choosing a soldering iron specifically for home use It is necessary to pay attention to the presence of all attachments.

You also need to pay attention to the material of manufacture; it can be metallized Teflon or regular Teflon. At the same time, the first one is higher, it requires a careful, careful attitude. Before use, they must be wiped with isopropyl alcohol.

Temperature level adjustment

When choosing a soldering iron for installing plastic polypropylene pipes, you need to pay close attention to the ability to adjust the temperature level. Adjustment accuracy from one to five degrees can be achieved using only a professional soldering iron, but it will be needed when the volume of work is very large. At home, you can often get by with cheaper models, but you should still choose them carefully.

The temperature when connecting parts should not be equal to or greater than 270 degrees, since at this value the thermal degradation of polypropylene pipes begins. The optimal value is to support a temperature value of 260 degrees, so when choosing, make sure that the rhythm of the difference is not too large.

When choosing, remember that attention should be paid to the temperature not on the soldering iron regulator, but on the nozzle. Experts recommend purchasing an additional special thermometer, which will allow you to accurately determine the temperature value so that the soldering is of high quality and the pipe itself is not damaged. Besides , modern models devices have sound alarm: When a certain value is reached, an alarm will sound. Such devices allow you to monitor the condition in three modes (for heating, for connecting polypropylene pipes, for fixing).

When buying a soldering iron for plastic pipes, you need to pay attention to every little detail, since the quality of installation and the pipe itself often depends on them. A soldering iron for plastic pipes must not only be reliable, but also have the ability to control temperature, be easy to use, and have all the necessary attachments.

Soldering iron for plastic pipes

Quite often, when carrying out repairs or during the construction of buildings, it is necessary to carry out pipelines. Modern technologies allow the use of plastic pipes in almost all communications. made from durable polymers. Water supply plastic pipes, despite their high strength, have a low price, are not afraid of corrosion and do not become overgrown inside with deposits of salts and lime.

Hot and cold water supply in the apartment, laying water supply on summer cottage and installation of pipelines when installing heating systems - plastic pipes are used everywhere. Special soldering irons are used to work with polymer pipes. which perform heating of pipes and other pipeline elements (angles, tees, crosses). The connected heated parts of the pipeline are soldered into a single whole and do not allow water to pass through, which is what is required from the plumbing or heating system.

A soldering iron for plastic pipes is sold in almost any hardware or construction store. Their cost is relatively low, especially when you compare their price and the cost of work on laying water lines in an apartment or house, which the craftsmen will require from you. Of course, if you need to add a tee to install a washing machine, then there is no point in purchasing a soldering iron - it’s easier to call a mechanic from the housing office. But if the renovation of an apartment or house is major, then a soldering iron for plastic pipes will pay for itself quite quickly.

The principle of operation of a soldering iron for plastic pipes is simple - inside it there is a heating element, which heats up from a voltage of 220 V, and from it the nozzles for pipes and other elements heat up. The nozzles, which are sold as a set along with the soldering iron, have a diameter of #189; up to 2 inches and allow you to perform necessary work with various pipes. The tips are screwed onto the soldering iron with different sides, which allows you to simultaneously heat the pipe from the outside and the connecting element from the inside.

However, it is best to work with a soldering iron with a partner, when one holds the soldering iron, and the second heats up the necessary sections of the pipeline. But if there is no partner, then you can do it yourself, but this will require skill and work gloves - so as not to get burned. Special scissors are included with the soldering iron. which allow high-quality cutting of plastic pipes of various sizes. Of course, you can cut the pipe with a hacksaw, but scissors will do it much faster.

When buying a soldering iron for plastic pipes, you need to pay attention to the presence of a rheostat on the soldering iron, which serves as a temperature regulator. At the maximum temperature level, a soldering iron when turned on will not only generate extra kilowatts for you, but can also unnecessarily melt plastic pipes. This usually happens in hard to reach places, where it is not possible to work comfortably and excessive use of a soldering iron greatly melts the pipe or the joining element (tee, angle, cross, joining barrels). During operation, it is better to regulate the set temperature than to redo a certain section of the pipeline several times.

Of course, when carrying out repair work, other power tools will be required. and the tools. But the soldering iron is for polymer pipes When carrying out plumbing work or installing a heating system, it will come in handy.

Welding machines for plastic pipes

Are you looking for where to buy a soldering iron for plastic pipes inexpensively in Moscow? We're cheap!

In this catalog you will find a soldering iron for plastic pipes, characterized by excellent functional and technical characteristics. The presented equipment meets the most modern requirements for equipment of this class, has proven itself in practice and is in great demand in Moscow and throughout Russia in general. Indeed, the soldering irons for plastic pipes presented in the catalog are designed taking into account many years of experience in operating pipe welding equipment in practice. The developers have made every effort to ensure that each soldering iron for plastic pipes meets the requirements for it and gives excellent results when used. If we evaluate the characteristics of the proposed models, we can note that the soldering irons have a wide welding range, are easy to use, light in weight and economical in operation. All this makes it possible to successfully use this equipment for welding plastic pipes. Additional benefit soldering iron models presented are their small sizes and the presence of a variety of attachments for welding pipes of various diameters.

According to reviews of experts working in the market for equipment of this class, in terms of price/quality ratio, these models are among the best on the market. You can take advantage of the offered equipment right now by choosing the soldering iron for plastic pipes you are interested in and placing an order from our company.

We offer affordable prices

The most important advantage of our company is the affordable price of the supplied equipment. We supply soldering irons directly from the manufacturer, which means that you will not overpay to intermediaries and will receive quality product at an affordable price. In addition, well-functioning and modern supply logistics can significantly reduce the costs of delivery and storage of equipment; all this, naturally, allows us to offer equipment in Moscow at lower prices than on the market. If you want to buy a high-quality soldering iron for plastic pipes at an affordable price, our offer is one of the best in Moscow.

We offer a long warranty period

Experts know how important it is for the equipment to be reliable and return the investment on it. The models presented in the catalog have been checked and tested at the factory, developed taking into account operating experience, and are also made of high-quality materials. This allows us to guarantee a long service life and provide a long warranty period for each product. If you are looking for equipment with a long warranty period and reliable operation, take advantage of our offer.

We provide free consultation on the selection and operation of equipment

Situations often arise when customers do not know which soldering iron for plastic pipes is best to buy, they require additional information and advice. To simplify the process of choosing the model you are interested in, we offer a free consultation related to the choice of a soldering iron, the features of its use in practice, etc. Take advantage of this unique opportunity to ask questions to experts and make right choice.

Section tags: buy soldering iron for plastic pipes, soldering iron for plastic pipes price

DIY soldering iron for polypropylene pipes.

Description:
For pipe soldering summer water supply It’s kind of expensive to buy a soldering iron for 1,500 rubles. I found this way out of the situation.

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Often when using household appliances plumbing systems made of polypropylene, there is a need to repair or extend them, which is impossible without special equipment for soldering. As a tool suitable for these purposes, purchased devices of a special design are usually used, the high cost of which forces users to think about making them themselves.

This approach is good not only because it allows you to save significant money and not waste time learning how to work with unfamiliar equipment. Thanks to self-production it is possible to study all the intricacies of handling such devices, which ultimately affects the quality of soldering of polypropylene and other plastic pipes.

In the case when a decision is made to make a soldering iron for pipes with your own hands, this can be done by using the old spare parts remaining on the farm. One of the most common options for making it from improvised means involves using an old electric iron for these purposes.

To implement this project you will need the following components and spare parts:

• an old iron designed for a power of at least 800 watts;
• duralumin plate of suitable size;
• steel slats from an old children's construction set;
• wires, a toggle switch, an unnecessary handle from a disassembled drill or grinder to make it convenient to hold the soldering iron.

A soldering iron for iron pipes works on the same principle as a factory-made specialized product. The spiral (heating element) heats up, transfers heat to the sole and the nozzle inserted into it. This allows you to melt polypropylene pipes and solder them. The temperature on a homemade soldering iron is set to the maximum (should be 260-265 ℃). Having prepared all these parts and materials, you can begin assembly.

First, the casing is removed from the iron, which allows access to its insides. Then the working part of the sole is cut off using a grinder, and in its place, a duralumin plate cut to the shape of the base is attached with an existing bolt. Next, you need to assemble a box from the spare parts of the designer and securely fasten it to the sole.

A toggle switch and a handle from an angle grinder are fixed to the elements of the box, after which one end is connected to the switch network wire. The second conductor, together with the outlet from the toggle switch, is connected to the heating coil through asbestos tubes.

Nozzles for fixing on polypropylene pipes will have to be purchased separately. If desired, you can connect a socket with a light bulb in parallel to the power circuit, the current through which must be limited by means of a quenching resistor. In order to do this simple design It will take a minimum of time to do it yourself.

With heating regulator

To control the heating temperature homemade soldering iron for polypropylene pipes, install a thermocouple. To assemble a device equipped with a heating regulator for the working sole, additional parts and spare parts will be required, namely:

• thermostat, thermocouple and two tips;
• dial indicator with a special scale (with “zero” and two sectors);
• insulated conductors with a length of at least one meter each;
• asbestos wool.

Even before starting work, you should contact a turner and ask him to make two tips of a special shape (for the fitting and for the heater outlet). The dimensions of these tips are selected based on the diameter of the tube prepared for assembly.

The procedure for assembling a soldering iron for polypropylene with a thermostat with your own hands looks like this:

1. First, the casing is removed from the iron, after which the temperature regulator is removed from its sole, as well as all unnecessary details and wiring. After such disassembly, you should be left with a clean ironing plate.
2. Then, using a drill, holes with a diameter of about 6 millimeters are drilled in the tips, after which they are bolted to the body, cleared of foreign parts (from the “nose” side). On the opposite side of the base, holes are drilled in it with a diameter suitable for mounting the thermocouple housing.
3. Wires about one meter long are soldered to the thermocouple. Following this, the same conductors are used to connect the heating coil. All these wires are led out through a hole in the handle of the iron. It itself is attached directly to the casing.
4. At the final stage of work, the space between the casing and the slab is filled with asbestos material (wool), which acts as a heat insulator. Upon completion of this operation, the casing is returned to its place, resulting in a housing with two pairs of conductors brought out.

These wires are connected to the power plug and the thermostat according to a circuit that allows you to set a given value for the melting temperature of polypropylene (255-265°).

Thermostat circuit and printed circuit board

Industrial designs with paired nozzles

For the manufacture of thermal nozzles for industrial soldering irons, special materials are used that conduct heat well (copper, aluminum alloys and the like).

On the outside, they are coated with a special layer that prevents polypropylene from burning (Teflon is most often used for these purposes).

Known samples of nozzles for soldering propylene pipes differ both in their shape and in the method of attachment to the heater, which can be various designs. In this case, preference is usually given to products that allow the installation of paired nozzles (or several pairs of them at once).

The capabilities of such a device are significantly expanded, since it becomes universal in its technical indicators.

The working dimensions of soldering iron nozzles (their diameters) must correspond to the same indicator for polypropylene pipes and have values ​​from 16 to 110 millimeters.

Special nozzles with sizes from 20 to 32 millimeters must be included in the kit of any soldering iron that belongs to the category of semi-professional devices. Specialized models of soldering fixtures can be equipped with a large number paired nozzles, the size range of which has been expanded to 63 millimeters.

Pipes are firmly established in every home. Their versatility makes it possible to install water supply systems not only in houses, apartments, but also in summer cottages.

The use of such elements for a heating system is also one of the most popular areas. In order for the work to be completed efficiently, you should study the rules and secrets of soldering polypropylene pipes. And you should start by studying the characteristics and features of the material.

Types of PP products

There are several options for execution. They can be distinguished by markings along the length of the product:

1. PN-10. Suitable for systems with weak pressure not higher than 1 MPa and temperature not exceeding 45°C. As an option, install a water heated floor.
2. PN-16. The pressure in such a system should not be higher than 1.6 MPa, and the temperature should not exceed 65°C. Used for supply cold water.
3. PN-20. One of the most popular types. Used for supplying hot and cold water. The pressure in such a system can be up to 2 MPa, the temperature is allowed up to 80°C.
4. PN-25. Used in heating systems. System pressure up to 2.5 MPa, temperature up to 95°C.

For private use, pipes with a diameter of 16 to 110 mm are used.

The color of the product does not affect individual characteristics. Most often, products are found in white. The exception is black pipes. They have additional protection against ultraviolet radiation.

Is it difficult to do it yourself? The work instructions must be followed exactly, but otherwise the process is not complicated. There is a whole list of fittings for pipes, which should also be studied.

Advantages and disadvantages of PP products

Such systems have a decent list of advantages:

1. Durability of the material. Service life up to 50 years. Achieved due to the absence of corrosive processes.
2. Environmental friendliness. High quality material- guarantee of safety for human health.
3. Possibility to hide in boxes under tiles. Achieved due to the durability and tightness of the system.
4. Aesthetics. Even on open space The pipes look neat.
5. Virtually no plaque is formed inside the system. Achieved due to the smooth inner surface.
6. Lightness of design.
7. Simplicity of installation work.
8. Versatility due to large quantity connecting elements.
9. They do not conduct current.
10. This material makes the system less noisy.
11. Does not freeze. Has a good

The disadvantages include the fact that you will get low-quality material.

Types of soldering

There are two types of connections - butt and socket. The connection according to the first option may not withstand high pressures in the system. Therefore, the most popular and in a simple way is a socket connection using fittings and a special welding machine. As his instructions show, it must be performed with strict adherence to technology.

Then the quality of the system will meet all requirements and can last up to 50 years.

Types of fittings and their features

These systems have a large list connecting parts, which allows you to do the wiring as efficiently as possible:

1. Angled 45° and 90°. With their help, you can rotate the system from 45° to 135°. They can be with or without thread.
2. Adapters are double, triple, four-way. These options also include threaded options.
3. Contours. When soldering the system, they allow you to bypass the intersections of pipes.
4. Compensators. They look like a loop. They are installed to stabilize the pressure in the system. This significantly extends the service life of the pipeline. You can assemble it manually using fittings, but it is cheaper to buy a ready-made option.
5. Taps and valves. Shut-off elements used during pipeline operation.
6. Plugs. At repair work, for example, in a bathroom, some of the pipes are plugged before tiling is completed. This helps avoid blockages before installation begins. plumbing equipment and water leaks.
7. Fastening elements. Allows pipes to be fixed to surfaces.

Selection of pipes and fittings for them

First of all, you should draw a connection diagram to correctly calculate the material.

Next, the connection characteristics are analyzed. As mentioned earlier, PN 20 models can be used to connect cold and hot water, PN 25 - for heating system. Pipes are usually sold in lengths from 2 to 4 m, or in coils.

The soldering instructions indicate that the fittings are selected taking into account the required parameters and must match the outer diameter of the pipes.

Tool for the job

The following list will be required:

• welding machine for polypropylene pipes with nozzles;
• roulette;
• marker;
• special cutter;
• equipment stand;
• carrier or extension cord;
• protective gloves;
• instructions.

Soldering should occur after reading the technical documentation for the equipment.

Welding machine for PP products

As a rule, such equipment is sold in a separate suitcase. The kit includes:

1. Cutter for PP material. Sometimes you have to buy this tool separately, because the kit may contain a low-quality one.
2. Nozzles for different pipe diameters.
3. The welding machine itself.
4. Keys for installing nozzles.
5. Instructions. Soldering of polypropylene pipes, as well as maintenance of equipment must be carried out in accordance with this technical documentation.

Instructions - preparation for work

Welding system temperature environment should be at least five degrees.

If this is external work, soldering is not allowed in wet weather.

Place pipes and fittings so that they do not interfere with the work, but at the same time they must be within easy and quick tolerance. Pull out the cutter and place it next to the material.

Remove the welding machine from the packaging. Select the required nozzles. One should be a mandrel, the second a sleeve. The first one is used for warming up. inside fitting, the second - for outside pipes. Install on the equipment and secure. Place the device on the stand. Connect to the network, set the required temperature regime(usually set to 260°C), turn it on. Make sure that the welding surface does not come into contact with anything.

As the instructions indicate, soldering of polypropylene pipes should be carried out only after the apparatus has been fully heated. For this purpose, the equipment has backlit buttons and when fully warmed up, the indicator goes out.

Soldering pipes has several stages that allow you to achieve an ideal result:

1. Cut the pipe to the required length. Make an even, unmown cut. A cutter is used for this. It should be sharp and the blades should not dangle.
2. Clean the edges from burrs and plastic crumbs. Degrease the surface. If there is water inside, wipe with a cloth. In any case, both the fitting and the cut pipe must be clean and dry. If the part is to be used, foil reinforced, should be removed upper layer. Otherwise, soldering will not be possible.
3. Try on the elements. Make a mark on the pipe to ensure a smooth connection to the fitting. In principle, this is an optional procedure. Depends on the experience of the welder.
4. When soldering polypropylene pipes occurs, the instructions should already be studied, including the section on safety precautions during work.

The welding process will be easier to do with two people, but it can be done alone.

To do this, remove it from the stand and press the handle to the floor with your foot. A pipe and a fitting are simultaneously put on both sides - each on its own nozzle. Movements should be with pressure, twisting clearly parallel to the ground. Alternately half a turn is done towards yourself and away from you with each hand at the same time.

Having dressed all the way, you should wait for the time according to the instructions. It will definitely contain a table with accurate data. Remove both elements at the same time and insert them into each other using a screwing motion with pressure, again wait time according to the instructions. An influx should form at the junction. It will provide a tight connection.

There are very complex transitions and connections. It is better to solder these in parts.

Several are gathering individual designs and the connection is made on site. In such areas you will probably need the help of another person.

As you can see, the process is simple - soldering polypropylene pipes. The instructions should be at hand. She will give full information according to the time of heating the pipe and soldering.

note

You should adhere to safety precautions when working. Avoid contact with heated elements during welding. After work, turn off the equipment and allow it to cool before putting it away.

Main mistakes when welding and soldering polypropylene pipes

And now the system is ready. Pressure testing is done, and the joints leak. It seems that everything was done using technology, but such a nuisance came out. What could be the problem:

1. The pipes were not warmed up enough. As a result, the seam turned out to be leaky.
2. Poor connection. When connecting the pipe and fitting, a tight connection did not take place. Work must be carried out with pressure and inserted until it stops.
3. The edges are not deburred. As a result, a gap may form.
4. The fitting or end of the pipe was wet. Water will not give a complete seal.
5. Pipe and fitting from different manufacturers. Poor soldering may also occur due to differences in chemical components.

Or the opposite effect may occur - water does not flow through the pipes.

This may occur due to overheating of system elements. And inside, at the place of soldering, a solder has formed, which does not allow water to pass through. Therefore, it is said that the work technology must be fully observed when soldering polypropylene pipes. Instructions for each welding machine Your own is attached and you need to study it before starting work.

Polypropylene pipes, due to their low cost and ease of connection, are used by many owners when installing water supply in an apartment or house. There are many tools for soldering pipes, but not everyone can afford them, so I made a soldering iron from an old electric iron.

On the “sole” from the iron (heating element) (photo 1, item 1) in advance drilled hole Using a bolt on both sides, I secured the heating element for the outer (7) and inner (see photo 2) diameters of the pipes. The heat-insulating casing (photo 1, item 2) and the temperature controller module (3), mounted on a textolite plate (4), were connected to the heating element and installed on a stand (5). PTFE insulators (6) were placed between the casing and the plate.

The aluminum stand securely holds the structure, and the protruding part of the textolite plate is freely inserted into its groove (8) and easily removed, which allows you to conveniently store the device. Wooden handle I attached it to the textolite with self-tapping screws. The temperature controller module was assembled according to the diagram...

When installing a water pipeline, I turn on the soldering iron and set the desired temperature. I insert 25 mm diameter pipes into the heating element on both sides for no more than 5 seconds, take them out and solder them together, connecting the heated ends.

Diagram of a homemade soldering iron for plastic pipes

1. Variable 500 kOhm (R 1)

2. Resistor 4.7 kOhm 0.5 w (R2)

3. Resistor 1 mOhm, 0.25 w(R3)

4. Dinistor DB-3(VS 1)

5. Triac TS 25-4 (VS 2)

6. Thermal electric heater 1000w(T3H)

7. Capacitor 0.1 uF, 400 v(C 1)

8. Neon lamp HL 1 (network indicator)

The temperature controller is mounted in an aluminum case measuring 130x60x90 mm on a board made of foil fiberglass. The control knob is located outside and has divisions. When the device is turned on, the red lamp lights up.

DIY soldering iron for plastic pipes - photo

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