Connect two polypropylene pipes. How to connect a polypropylene pipe to a polypropylene pipe without soldering fittings? How to properly connect polypropylene pipes? Advantages of using pipe connections without hot soldering

Soldering polypropylene pipes is an operation that sometimes has to be done in own home with your own hands. Buy specifically for this welding machine not at all advisable. Therefore, many are trying to find such instructions, such methods that would save them from expensive purchases. Today we intend to offer a method that is quite applicable at home and does not require any special equipment.

You can get as much information as possible about polypropylene pipes and methods of welding them.

Do-it-yourself soldering of small-diameter propylene pipes

We will talk about pipes that are most often used for wiring inside the house, i.e. about pipes with a diameter of 20 mm. Let's say we need to solder a pipe and an adjacent corner fitting.

Soldering propylene pipes of this diameter can be easily done if there is some safe source of fire at hand, which could be, for example, such a miniature gas-burner.

According to existing regulations and to ensure required quality connections, the pipe should extend into the fitting by 14 mm. To avoid violation of this standard, it is advisable to measure this distance from the edge of the pipe in advance and put a mark with a pencil.

Having done this, you can begin deep heating of the elements being soldered. The fitting, of course, must be heated from the inside.

The end of the pipe is heated from the outside.

When both parts are thoroughly heated, they can be inserted into each other.

When inserting the pipe, you should be guided by the previously applied pencil mark, which should be exactly along the edge of the fitting.

After this, the completed connection should be cooled without exposing it to any external influences. The cooled joint will be very strong and will in no way be inferior in strength to those connections that are usually made using special welding machines. You can verify this by cutting the soldering area you just made.

As can be seen in the photo above, the junction of the pipe and the fitting is completely monolithic, and such a pipe can be included in the composition without the slightest fear home system water supply

So, if you need to solder polypropylene pipes, you can easily do this work on your own, without purchasing any special tools. To do this, just take note of the recommendation we have given.

To install your own water supply from plastic pipes, you don’t need a lot of knowledge and experience, since this process is not complicated. However, to improve the quality of the work performed, it is necessary to become familiar with the technology and some of the nuances of connecting pipe elements of this type. It is also important to learn a few lessons about how to connect different types plastic pipe and the main points of this process.

Methods for connecting plastic pipes

Firstly, it is worth noting that plastic pipes include products made from the following materials:

• Polypropylene.
• Metal-plastic.
• Polyethylene.
• Polyvinyl chloride.

Each material has certain properties, therefore, the connection of products is carried out different ways, including soldering polypropylene pipes without a soldering iron (read also: " "). For greater awareness, it is worth learning the connection methods water pipes from the named materials.

Products made of polypropylene

Polypropylene pipe is the most popular material for plumbing. This is due to the presence of some advantageous points: reasonable price, high strength and long service life. Therefore, learning how to connect all types of plastic pipes should start with this type.

Polypropylene pipes are connected by welding with the obligatory use of couplings, angles, tees and other fitting elements. When connecting polypropylene pipes for water supply, you need to purchase pipes and fittings from the same manufacturer. Otherwise, even strict adherence to welding technology cannot guarantee complete tightness and quality.

To connect the water pipes with your own hands polypropylene pipes, you need to have the following tools on hand:

• Special soldering iron. That's what it's called simply welding device with a set of special nozzles that allow connecting pipes of different sections. In this case, the nozzle for each pipe is selected individually in accordance with its cross-section.
• Cleaning up. This tool is used to cut off the reinforcing layer at the ends of the pipes. Stripping is used only for multilayer reinforced pipe products.
• Pipe cutter By its name you can tell that the device helps cut polypropylene pipes.
• A tape measure, pencil or marker may also be needed in the process of joining polypropylene pipe products.

Installation of a water supply system made of polypropylene pipes is carried out as follows:

1. Turn on and warm up the welding machine. The device must go through three phases: heating to a certain temperature, switching off, and reheating. The operating mode can be monitored by a light indicator (read also: " ").
2. While the soldering iron is heating, the reinforcing layer is stripped in the place where the fitting will be welded.
3. Remove dust and dirt from the surface of the elements to be joined and wipe well wet places. Please remember that failure to follow these steps may result in a weak connection.
4. The end of one pipe and the connecting element are inserted into the heating nozzle and kept for a certain period of time. The heating time must be strictly controlled, since holding it for a long time leads to deformation of the elements, and insufficient heating reduces the strength of the connection of plastic water pipes. Therefore, each welding machine is accompanied by a special table, which indicates the heating time of parts having a certain diameter.
5. The heated elements are pulled out of the nozzles and quickly connected. The strength of the connection also depends on the speed of action at this stage, so the process must be performed quickly but carefully. The pipe is inserted into the fitting until it stops, but it should not be deformed. The connected parts should be held until the plastic has completely cooled.
6. In a similar way, all elements of the water supply system are connected. To avoid damage to the material, you need to perform actions on unnecessary pipe scraps. The process of welding polypropylene pipes is quite complex, but after a few trial steps you can begin independent work. From the leftover material you can make various homemade products from polypropylene pipes, which look quite original.

Joining of metal-plastic pipes

Compound metal-plastic pipes You can also make these products yourself using one of three methods:

1. Connection using compression fittings involves performing the following actions: the end of the pipe is put on the collet, secured with a compression ring and compressed with a clamping nut.
2. Connecting with crimp fittings involves compressing the ring at the end of the fitting using a special press.
3. Docking with push fittings is a new joining method that does not require any tools. This method may be the answer to the question of how to connect plastic pipes without soldering.

Regardless of the chosen method of connecting metal-plastic pipes, the tools should still be prepared. In particular, you will need a pipe cutter, which can be replaced with a regular mounting knife, and a calibrator, which can be any cylindrical object of a certain diameter.

The most popular is the connection of metal-plastic pipes using compression fittings, which involves the following steps:

• First, the pipes are cut using a knife or pipe cutter, ensuring a right angle to the cutting line.
• Before connecting the pipes, the cut ends are processed, that is, the diameter is calibrated and chamfered, using a calibrator in both cases.
• The nut is removed from the fitting and placed on the end of the pipe, followed by a compression ring.
• Now the collet is inserted into the end of the pipe, having first checked the presence of rubber O-rings.
• Slide the clamping ring onto the collet and tighten the nut on the fitting. In this case, you should not allow the nut to be over-tightened, as this will lead to damage. rubber seals(read also: " ").

All water supply elements are connected in a similar way. This type of installation has one advantage: minimum set tools for work, which are at hand for any owner. Moreover, this is the only option that allows you to get plug connection necessary in some situations.

Connection using compression fittings performed in the same order, only the compression ring and nut are replaced with a ferrule ring. A manual or electric press is used to compress it.

Push fittings make it possible to connect metal-plastic pipes much faster than previous methods. To complete the work, it is enough to insert the prepared end of the pipe into the connecting piece, and all actions are performed without much effort.

Push fittings can be used to connect pipes made of metal-plastic and cross-linked polyethylene.

The connection using any of the listed methods is sealed and reliable, so you need to choose depending on the available tools and financial capabilities.

Polyethylene pipes can be connected using one of the following options:

• Using compression fittings.
• Welding using an electric coupling.

The connection with compression fittings is carried out by analogy with metal-plastic pipes, but in a certain sequence:

• The pipe is cut and chamfered.
• A clamp nut is placed on the pipe.
• It is followed by a collet.
• Next, in turn, put on the persistent and sealing ring.
• The pipe is inserted into the fitting body, all parts are moved to the edge and the nut is tightened.

This method is most often used when assembling household irrigation systems in country houses or on a summer cottage.

The connection of metal-plastic pipes in household water supply systems is carried out using electrofusion welding. Therefore, to perform the work you need to have a special welding device and an electric coupling with a diameter in accordance with the cross-section of the elements being connected.

The welding procedure involves performing the following steps:

• Preparation of the surface of the elements to be joined. To do this, use a special scraper to remove upper layer tubular products and degrease the cleaned area.
• The ends of the elements to be connected are inserted into the electric coupling, and the joint should be located exactly in its middle.
• The electrofusion coupling is connected to the welding machine and the coils inside it begin to heat up. As a result, the polyethylene begins to melt and welding of the edges of the pipe elements occurs.

The device for this type of welding has a very high price, therefore, if it is not intended to be used further, it is better to rent the device for a few days rather than waste a large amount for its one-time use.

Pipe products made of polyvinyl chloride are connected using a special adhesive composition. However, it is very difficult to call it glue, since when the surfaces being joined are treated with this substance, the plastic melts and the edges are welded and not glued together. In other words, pipes are soldered without a soldering iron.

The process of connecting polyvinyl chloride pipes is as follows:

• First, the edges of the pipes to be connected are cleaned of dust and dirt and dried well.
• Then the ends are chamfered. This action must be performed so that the adhesive composition is not scraped off when connecting the elements.
• Next, one end of the pipe is inserted into the fitting to measure its depth. Make a corresponding mark on the pipe with a pencil or marker.
• The end of the pipe is treated with adhesive to the mark using a brush. At the same time, we should not forget that you cannot leave the glue on the surface for more than 25 seconds.
• The elements are connected and slightly rotated to evenly distribute the composition over the entire surface. The glue should dry naturally without any external influences. The drying time of the adhesive composition may be affected by air temperature and other factors.

Based on everything said above, we can conclude that in most cases, connecting plastic pipes can be done with your own hands, without having special devices at hand and without possessing special knowledge and skills. The main condition is strict adherence to technology. It is also important to listen to the advice of professionals. This will help install the water supply without unnecessary material costs.

The ability to assemble pipelines yourself is a definite plus polypropylene products. Using convenient and lightweight material, you can build a sewer system yourself, repair and modernize the water supply system.

The main thing is to understand the specifics of connecting prefabricated elements to each other. Agree, this is an important part of the work, responsible for the tightness of the highway and its trouble-free operation.

We offer you detailed information about how polypropylene pipes are soldered, what equipment is used in the work, and also list the most common mistakes made by novice welders.

The information we offer will help you build trouble-free communications. For clarity, the article is supplemented with graphic applications and a video guide.

The soldering process is carried out due to the pronounced thermoplastic properties of the material. Polypropylene softens when heated - it acquires a state similar to plasticine.

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This is what a soldering iron (“iron”) for polypropylene pipes looks like. Simple electrical device, semi-automatic, thanks to which plastic soldering is done

To be completed butt welding soldering machine designs differ increased complexity. Typically, such equipment contains not only a heating element, but also a system for centering the parts being welded.

As a rule, direct welding equipment, like the technology itself, is rarely used in the domestic sphere. Priority of use is industry.

More complex device, with the help of which precise alignment of the welded parts is carried out with further process heating and soldering. Used with direct welding technology

In addition to soldering irons, the master will also need:

• scissors - ;
• construction tape;
• bench square;
• shaver for pipes with reinforcement;
• marker or pencil;
• surface degreasing agent.

Since the work is performed on high-temperature equipment, you should definitely wear thick work gloves.

Polypropylene Welding Procedure

Important warning! Work on welding polymer materials must be carried out in conditions of good ventilation of the room. When heating and melting polymers, they release toxic substances, which in a certain concentration have a serious effect on human health.

The procedure for welding polypropylene is simple, but it requires precision and accuracy in work. You should also avoid common mistakes, such as insufficient or excessive heating

The first thing you need to do is prepare for work:

1. Install blanks of the required diameter on the heater plateau.
2. Set the regulator to 260ºС.
3. Prepare the mating parts - mark, chamfer, degrease.
4. Turn on the soldering station.
5. Wait for dialing operating temperature– turn on the green indicator.

Place the mating parts (pipe - coupling) on ​​the soldering station blanks at the same time. In this case, the polypropylene pipe is inserted into the internal area of ​​one blank, and the coupling (or socket of the shaped part) is placed on outer surface another blank.

Typically, the ends of the pipe are inserted along the border of the previously marked line, and the coupling is pushed in until it stops. Enduring polypropylene parts on heated blanks, you should remember important nuance technology – holding time.

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Conclusions and useful video on the topic

There is always something to learn from professionals. You can see how to work with polypropylene in the following video:

Installing pipelines made of polymers by hot soldering is a convenient and popular technique. It is successfully used in the installation of communications, including at the household level.

People without extensive experience can use this welding method. The main thing is to correctly understand the technology and ensure its execution exactly. A technological equipment can be bought or rented.

Do you have experience soldering polypropylene pipes? Please share information with our readers. You can leave comments and ask questions on the topic in the form below.

Metal pipes, which were standard in the past, are today increasingly being replaced by plastic ones, or more precisely, polypropylene (as well as PVC). And if a welding machine is usually used to install the former, then the polymer analogues are mounted using a special soldering iron. However, the latter may not be at hand at the moment when it is necessary to solder one of these pipes. Is there a way out of this situation? Actually yes. In addition, here we will look at soldering wires.

• Installation of water supply, drainage and heating systems;
• Repair work on heating and water supply systems;
• The need to connect two wires;
• Repairing the awning - sealing the holes.

Is there an alternative to a professional soldering iron for polypropylene pipes?

Before we sort out the soldering of wires and awnings, let's focus on the pipes. The machine for welding them costs several thousand rubles. Mostly professionals buy it for themselves, but for ordinary person This device simply won’t pay for itself. In this regard, we have to look for Alternative option, which may become much more widespread in ordinary houses gas-burner.

This burner performs well both in repair and installation. At the same time, it can solder both small-diameter pipes and fairly large analogues. It is used not only for connecting pipes, but also as a means of installing plastic taps to control the flow of water into the pipeline.

Tips for joining polypropylene pipes without a soldering iron

• The quality of the connection largely depends on the cleanliness and absence of grease on the pipes themselves. Therefore, before work, it is recommended to degrease and clean them from dirt;
• All pipes, as well as fittings and other parts must be from the same manufacturer. This way you will be sure that the same temperature effect must be applied to connect them. In addition, you should not skimp on quality. Its absence may appear both during the soldering process and during subsequent operation;
• Do not solder in cold conditions. If, for some reason, the room temperature has dropped by less than +5 degrees, the connection may be fragile;
• It is recommended to practice on unnecessary sections of pipe.

Alternative - PVC pipes

There are plastic pipes that do not require soldering, since they can be glued together. In addition, they have all-plastic pipe threads located on the internal and external sides.

In addition, there is a special solvent-based cement for PVC and CPVC pipes. After treatment with this cement, the surface becomes soft and can be quickly glued together.

The procedure for soldering polypropylene pipes

• Compilation detailed diagram, marking of turning points, location of taps, corners and other elements of the system;
• Pipe cutting. It is best to take with a margin of 25 millimeters, which will be fused onto the fitting;
• The pipe and fitting are heated using a burner. The temperature is approximately 280 degrees Celsius;
• The fused elements are held together until they cool.

A universal method of soldering an awning

With the arrival of the warm season, the need for awnings increases. By putting it on your house plot or taking it on a picnic small awning, you may find an unpleasant surprise - a hole. Is it worth buying a new awning after this or can I somehow correct the situation?

For soldering we need construction hair dryer, which will have a special crevice nozzle, as well as a patch with a roller. After preliminary cleaning the damaged area and patching it from dust and grease, it is necessary to place the awning on flat surface. Having attached the patch to it, we begin to heat both surfaces using a crevice nozzle, simultaneously securing it with a roller. The better you heat the surfaces, the better they will stick to each other. But here it is extremely important not to overdo it and not burn a hole.

Soldering wires without a soldering iron using soldering tape

Despite the fact that a regular soldering iron is found in our homes much more often than its counterpart for plastic pipes, it still may not be at hand in right moment, when you need to connect two wires. Of course, you can try to twist them and wrap them with “blue electrical tape,” but this option is only temporary. At the same time, you can connect wires “forever” without a soldering iron.

A special soldering tape will help us with this, which allows us to create a strong layer around the wire. polymer layer, providing complete connection and isolation problem area. The stages of working with this tape are as follows:

• Stripping the wires that we will connect and their subsequent twisting;
• Removing the protective layer from the tape and wrapping it around the twisting area;
• Heating the tape open flame until melting and uniform coverage of the problem area. Regular matches are suitable for this;
• After the tape has cooled, remove excess flux. The wire is fully connected and ready for further use.

Welding wires using special paste

Paste is used to connect various metals such as steel, nickel, copper and others. The reason for this versatility is that this material produced on the basis of silver. In general, the paste contains flux, solder and binding components crushed to a powder state. In the vast majority of cases, this method is used for soldering small wires. So, if your favorite headphones are out of order, and you don’t have a soldering iron at hand, then ideal solution it will become just paste. The way to use it is extremely simple:

• We clean the wires and twist them together;
• Apply the paste to the twist area as evenly as possible;
• Using a regular lighter, the paste is heated until it melts and turns into a full-fledged solder;
• After this, it is necessary to insulate all exposed parts of the wire. The ideal means for this is a heat shrink sleeve. We put it on the soldering area, then heat it up and get reliable insulation.

Polymer parts can be connected not only using heating elements. But how to connect polypropylene pipes without soldering? Soldering polypropylene pipes to connect them is not always used. The presence of other types of connections besides soldering is one of them characteristic features. The absence of the need to purchase welding equipment in one way or another makes this type of welding even more popular and accessible, since few people know how to solder or how to weld pipes. Also distinctive feature is the ability to connect plastic pipes with your own hands without special equipment. How to connect plastic pipes without soldering?

There are two ways to join polypropylene, polyethylene and other polymer materials without the use of special welding equipment: welding plastic pipes using compression fittings and cold welding.

The only thing you will need besides compression fittings for the first type of welding is a special crimp wrench. They are usually sold together. For cold welding you only need special glue. The last type of connection without soldering is most often applicable only for cold water supply. The disadvantage of joining parts without soldering is that it takes more time. Next, each type will be examined in more detail and the answers to the questions of how to connect polypropylene pipes without soldering and how to solder polypropylene pipes on your own will be presented.

Connection using compression fittings

Solder plastic parts possible using compression fittings. They are applicable not only to the corresponding type of pipe. As a rule, fittings made of a material different from the material of the elements being connected cannot be used. However, a feature of such fittings is their versatility, since they can be connected different pipes: aluminum with copper, low-density polyethylene with PVC and so on. Therefore, not every part corresponds to a certain type of fitting. Another advantage of this type of connection is that the structure can be either assembled or disassembled. If you have soldered two parts, it will no longer be possible to separate them as before.

The fitting design consists of the following elements: those that are installed at the end of the pipe (for example, plugs) and those that combine the connected elements into a single whole.

Modern market has many fittings. Here are the main ones:

• Crimping (aka compression)
• Flanged
• Welded
• Threaded

The compression fitting is a housing that is not affected by ultraviolet radiation. This housing contains a press-fit sleeve and a cover. The housing material contains an O-ring that helps hermetic connection, clamping and thrust ring (sometimes these two rings are combined into one). In case of disassembly/assembly of parts, the sealing ring must be replaced with a new one. These fittings are used for products made of low-density polyethylene (PE 100, PE 80, PE 40), and low-density polyethylene. In addition to UV resistance, compression fittings are also characterized by their resistance to chemicals aggressive influence. The scope of application of connections using compression fittings is typical for low-rise buildings, in the street water supply systems villages and towns, greenhouses. In this regard, it is worth noting again the peculiarity of this type of connection, namely the possibility of disassembling the pipeline in one place in order to move it to a new location.

When working with fittings, be sure to first read the instructions and strictly follow their provisions, as well as the rules set forth below. Before work, you need to familiarize yourself with the quality of the pipes, their sizes and their compliance with the fittings. There are maximum permissible limits for deviations from the norm when connecting: the diameter cannot deviate from the nominal value by more than 1%, and the oval section cannot be more than 2%. If these limits are violated, then it is better to lay the pipeline in a horizontal position. The pipeline is connected manually if the diameter is less than 50 mm, if more, then it is necessary special key. Connecting plastic pipes without soldering must be carried out in compliance with the requirements for thorough cleaning of parts from dirt and burrs, and cleaning so that the edges are smooth and free of defects. For pruning, use special scissors. Mark the required insert length on the product using a marker.

The connection speed is quite fast. The nut is placed on one end of the pipe, the clamp ring is installed, after which the pipe is inserted into the fitting. The ring should reach the stop. Finally, depending on the diameter of the pipeline, tighten the nut manually or using a key.

As a result, we get a ready-made connection of plastic pipes without soldering.

The main advantages of compression fittings:

• Structural strength
• Durability of the design
• Simplicity and speed of assembly
• No susceptibility to corrosion
• Versatility
• The ability to connect plastic pipes with your own hands without welding equipment

How to solder polypropylene pipes without a soldering iron using cold welding or adhesive bonding

Cold welding of plastic pipes is the process of joining parts without heating them. Solder plastic elements possible by applying special glue, which hardens quickly. The adhesive composition usually consists of epoxy resin and hardener. Cold welding has black or white colors. It is usually used for cold water supply. But some glues are also used for hot glue. This must be indicated separately on the packaging.

What kind of adhesive mass is there:

• Fluid mixtures (the package should contain two tubes: one with a hardener, the second with an elastic substance; for example: if you are going to fix a hole in polymer product, then the contents of the tubes must be combined immediately before starting work (a kind of repair); Be sure to use the mixture for no more than 20 minutes, otherwise it will become hard).
• Plastic mass (represents a bar consisting of two layers: a hardener on top, and a plastic component inside; resembles plasticine).

Most professionals advise using the cold welding method for a specific list of materials, which is provided in the instructions.

The packaging also indicates the maximum permissible value temperature for a specific mixture (usually about 260 degrees). If you strictly follow the operating rules, the seam will be durable, strong and airtight. There is glue for high temperatures water (about 1300 degrees).

Thus, soldering polypropylene pipes is not the only way to connect polymers. It is possible to connect plastic pipes with your own hands without using a welding machine. Do-it-yourself polypropylene pipes can be connected by cold welding or using compression fittings. Connecting polypropylene pipes without a soldering iron using fittings has features, among which the most important is the ability to assemble and disassemble structures.

svarkaed.ru

How to solder polypropylene pipes when you don’t have a soldering iron at hand

Metal pipes, which were standard in the past, are today increasingly being replaced by plastic ones, or more precisely, polypropylene (as well as PVC). And if a welding machine is usually used to install the former, then the polymer analogues are mounted using a special soldering iron. However, the latter may not be at hand at the moment when it is necessary to solder one of these pipes. Is there a way out of this situation? Actually yes. In addition, here we will look at soldering wires.

In what situations may soldering be necessary?

• Installation of water supply, drainage and heating systems;
• Repair work on heating and water supply systems;
• The need to connect two wires;
• Repairing the awning - sealing the holes.

Is there an alternative to a professional soldering iron for polypropylene pipes?

Before we sort out the soldering of wires and awnings, let's focus on the pipes. The machine for welding them costs several thousand rubles. Mostly professionals buy it for themselves, but for the average person this device simply will not pay for itself. In this regard, we have to look for an alternative option, which could be a gas burner, which is much more common in ordinary homes.

This burner performs well both in repair and installation. At the same time, it can solder both small-diameter pipes and fairly large analogues. It is used not only for connecting pipes, but also as a means of installing plastic taps to control the flow of water into the pipeline.

Tips for joining polypropylene pipes without a soldering iron

• The quality of the connection largely depends on the cleanliness and absence of grease on the pipes themselves. Therefore, before work, it is recommended to degrease and clean them from dirt;
• All pipes, as well as fittings and other parts must be from the same manufacturer. This way you will be sure that the same temperature effect must be applied to connect them. In addition, you should not skimp on quality. Its absence may appear both during the soldering process and during subsequent operation;
• Do not solder in cold conditions. If, for some reason, the room temperature has dropped by less than +5 degrees, the connection may be fragile;
• It is recommended to practice on unnecessary sections of pipe.

Alternative - PVC pipes

There are plastic pipes that do not require soldering, since they can be glued together. In addition, they have all-plastic pipe threads located on the internal and external sides.

In addition, there is a special solvent-based cement for PVC and CPVC pipes. After treatment with this cement, the surface becomes soft and can be quickly glued together.

The procedure for soldering polypropylene pipes

• Drawing up a detailed diagram, marking turning points, location of taps, corners and other elements of the system;
• Pipe cutting. It is best to take with a margin of 25 millimeters, which will be fused onto the fitting;
• The pipe and burner are heated using a fitting. The temperature is approximately 280 degrees Celsius;
• The fused elements are held together until they cool.

A universal method of soldering an awning

With the arrival of the warm season, the need for awnings increases. When you put it out on your property or take a small tent for a picnic, you may find an unpleasant surprise - a hole. Is it worth buying a new awning after this or can I somehow correct the situation?

For soldering, we need a construction hair dryer, which will have a special crevice nozzle, as well as a patch with a roller. After preliminary cleaning the damaged area and patching it from dust and grease, it is necessary to place the awning on a flat surface. Having attached the patch to it, we begin to heat both surfaces using a crevice nozzle, simultaneously securing it with a roller. The better you heat the surfaces, the better they will stick to each other. But here it is extremely important not to overdo it and not burn a hole.

Soldering wires without a soldering iron using soldering tape

Despite the fact that a regular soldering iron is found in our homes much more often than its counterpart for plastic pipes, it still may not be at hand at the right time when you need to connect two wires. Of course, you can try to twist them and wrap them with “blue electrical tape,” but this option is only temporary. At the same time, you can connect wires “forever” without a soldering iron.

A special soldering tape will help us with this, which allows us to create a durable polymer layer around the wire, providing a complete connection and insulation of the problem area. The stages of working with this tape are as follows:

• Stripping the wires that we will connect and their subsequent twisting;
• Removing the protective layer from the tape and wrapping it around the twisting area;
• Heating the tape with an open flame until it melts and evenly covers the problem area. Regular matches are suitable for this;
• After the tape has cooled, remove excess flux. The wire is fully connected and ready for further use.

Welding wires using special paste

The paste is used to join various metals such as steel, nickel, copper and others. The reason for this versatility is that this material is produced on the basis of silver. In general, the paste contains flux, solder and binding components crushed to a powder state. In the vast majority of cases, this method is used for soldering small wires. So, if your favorite headphones are out of order, and you don’t have a soldering iron at hand, then paste is the ideal solution. The way to use it is extremely simple:

• We clean the wires and twist them together;
• Apply the paste to the twist area as evenly as possible;
• Using a regular lighter, the paste is heated until it melts and turns into a full-fledged solder;
• After this, it is necessary to insulate all exposed parts of the wire. The ideal means for this is a heat shrink sleeve. We put it on the soldering area, then heat it up and get reliable insulation.

bricknews.ru

How to connect polypropylene pipes without soldering?

Owners of private houses and apartments are often faced with the problem of pipeline restoration. Many of them decide to replace old products with polypropylene pipes. Even a person without special skills can install such a water supply system. However, first you need to figure out how to connect polypropylene pipes without soldering.

Cold connection of polypropylene pipes

General information

During the construction of private houses, they increasingly began to install polypropylene water pipes. The popularity of such products is justified by their low cost, long service life, ease of installation and lack of rust. They are used to create water supply and heating systems. Three types of products are produced from polypropylene:

• copolymer;
• block copolymer;
• homopolymer.

The above products can be combined different ways. Many people use the connection of polypropylene pipes without soldering.

Advantages and disadvantages of solderless connections

This method has several serious advantages, due to which some people refuse to solder pipeline elements. These include:

• Small financial expenses. During soldering, you have to use expensive equipment that is not available to everyone.
• Easy to install. It is much easier to install pipeline elements without soldering, since you do not have to use a soldering apparatus and monitor such parameters as pressure and soldering temperature of polypropylene pipes.
• Water pipeline restoration speed. If the products were soldered together and a serious breakthrough occurred, then recovery may take a long time. It will take time to wait for a specialist with the necessary equipment. This problem will disappear if connections are made in other ways.

However, connecting plastic pipes without soldering has one serious drawback - installation of the pipeline can take much longer.

Connection methods

Insertion into a polypropylene pipe without soldering is carried out different methods. The choice of method directly depends on the purpose of the pipeline, the size and type of elements used. The most common connection methods include:

• Use of flanges. This type of connection is quite reliable. The products are connected with bolts that are screwed into special holes in the flanges.
• Use of fittings. These products are made of cast iron or steel. They are used when working with small diameter pipes. The advantage of fittings is that they allow you to make transitions between parts of the pipeline and connect them at different angles.
• Use of couplings. To use them, threads are made on the pipes and wrapped with tow to make the connection more airtight.
• Gluing. This method cannot be used for plumbing with hot water. During installation, glue is used, which is applied to the parts.

Fitting

If the technology of soldering polypropylene pipes is not used, then they are connected using fittings. They are connecting elements that are most often installed at turns and branches of the pipeline. The fittings consist of a body, a cover, a sleeve and a clamping ring located in a special socket. They also have a folded ring with which the polypropylene pipe is fixed.

When installing a water supply system, it is necessary to use pipes that comply with all standards.”

The ovality of the cross-section of products should be within 1% -1.5% of the diameter. If fittings with a diameter of less than 50 mm are used during operation, installation is carried out manually.

Before connecting plastic pipes without soldering with fittings, you must follow the step-by-step instructions:

1. Pipe cutting. They must be cut at right angles.
2. Removing hangnails. The surface of the products that will be placed in the fittings must be perfectly flat.
3. Installing the nut. It is removed from the fitting and installed on the pipe, after which the clamping ring is put on it.
4. Pipe installation. It fits into the fitting all the way and is secured with a nut and a clamping ring.

Flanges

Flanges are used if you need to connect plastic pipes without soldering. This connection is very reliable, as it can withstand temperatures up to 650 degrees Celsius and cope with pressures up to 20-30 MPa. The diameter of the flanges reaches 3000 millimeters. During selection optimal size the pressure of the pipeline and the material of the products from which it will consist are taken into account.

Flange connection of PP pipes

Flanges are made of cast iron or steel. They can be:

• Cast. They are part of the fitting or pipe structure.
• Welded. It is made in the form of a washer, which will have to be attached to the structure yourself.

When using them, you must follow these recommendations:

• At the place where the pipeline elements will be connected, you need to make special cut. At the same time, it must be done so that hangnails do not appear.
• A gasket is installed on the cut, which should protrude by 15 cm.
• The flange is attached to the gasket and connected to the flange that is installed on the second pipe.

Also, when performing such work, it is necessary to take into account the following nuances:

• You cannot install two or more gaskets on one flange, as this will make the connection less airtight;
• When installing the water supply system, it is recommended to use rag cardboard gaskets;
• the bolts should not protrude too much above the nuts;
• The gaskets must be installed in such a way that their outer cross-section does not touch the bolts.

Couplings

They are used during the creation of pressure and gravity pipeline. Connecting plastic pipes without soldering using couplings with your own hands is quite simple. To do this, just follow these rules:

• the edges of the joined elements are cut so that the cut is perfectly smooth;
• the place where the coupling will be installed is indicated by a marker;
• the coupling is coated with a special lubricant;
• Using a mark applied with a marker, the coupling is put on the pipe.

Connecting PP pipes with a coupling

Gluing

Connecting plastic pipes without soldering fittings can be done using glue. Before this, the surface of the products must be prepared. First you need to cut the product using special scissors and remove burrs sandpaper. All fitting and gluing locations are marked with a marker. After this, you can begin gluing, which consists of the following steps:

1. Degreasing. Before using glue, you must use a cleaner and degrease all areas where it will be applied.
2. Applying glue. The glue must be applied thin layer to the places where the fittings will be installed.
3. Pipe installation. They are installed all the way into the fittings. This must be done very carefully so that the parts do not wobble too much.
4. Drying. The glue will dry completely within 15-20 minutes. However, the pipeline only needs to be filled no earlier than every other day.

Gluing PP PVC pipes

Conclusion

Polypropylene pipes are connected in various ways. Having figured out how to connect polypropylene pipes to each other and to metal pipes, you can install the pipeline yourself.

How to connect a polypropylene pipe to a polypropylene pipe without soldering fittings? How to properly connect polypropylene pipes?

If there is a need to install plastic pipes, then most often they use the so-called cold welding. This technology involves the use of an adhesive composition special purpose and fittings.

Advantages of using pipe connections without hot soldering

If you are thinking about how to connect a polypropylene pipe to a polypropylene pipe, then you can use a method that involves the use of special fittings. This technique has many advantages, among which we can especially highlight the increased efficiency of installation of drainage and water supply systems, the reduction of the possibility of leaks that can occur during butt welding or when chemical compound. Among other things, the described technology is less labor-intensive and also requires less energy consumption. Among other things, it is associated with lower material consumption. Installation work is quite cheap. Using fittings and glue, you can connect pipes of various diameters, which range from 6 to 400 millimeters.

Comparison of cold soldering with mechanical and welded joints

Before connecting a polypropylene pipe to a polypropylene pipe, you should consider all the advantages of the cold soldering method. Thus, this technique, with low material consumption, speed and quality of work performed, is not inferior to traditional welding. This gluing technology does not require the use of special equipment, which greatly simplifies manipulations. You don’t have to use a special machine designed for welding, which consumes quite an impressive amount of electricity during operation. Due to this, it is possible to reduce costs installation work. If you are faced with the task of how to connect a polypropylene pipe to a polypropylene pipe, then it is worth comparing the adhesive connection using fittings and mechanical mating of the elements. The latter technology is not so energy-intensive, but more material-intensive. This is due to the need to purchase additional fittings, which increases the cost of work.

Features of connection using fittings and glue

If you do not know how to connect a polypropylene pipe to a polypropylene pipe, then it is important to familiarize yourself with cold welding technology. To do this, you will need to use glue, which is intended for connecting pipes with parts such as fittings. The latter are most often made from chlorinated polyvinyl chloride. After application, the glue begins to dissolve the surfaces of the parts by 1/3 of the thickness. This makes it possible to implement diffusion cold welding. On this process affected by air temperature and humidity. Before connecting polypropylene pipes using cold welding and fittings, you must ensure that the temperature environment ranges from 5 to 35 degrees. If there is a need to carry out installation work at temperatures below zero, then you should purchase frost-resistant glue, which can be applied until the thermometer drops to -18 degrees. If the work is carried out in hot weather, then gluing must be done in much more short time, which will eliminate the possibility of the composition drying out before the manipulations are completed. Before connecting polypropylene pipes using the described technology, you need to make sure that the glue has a uniform consistency, sufficient fluidity and does not have foreign inclusions.

During breaks between work, the container with the adhesive composition must be closed as tightly as possible, which will prevent the evaporation of volatile active components.

Technology for connecting pipes using fittings and glue

If you decide to use the cold connection method, then you need to use the technology described below. At the first stage, you need to cut off part of the pipe in such a way that you can obtain an element of the required length. For this purpose it is recommended to use a pipe cutter, special scissors or a hacksaw, the latter of which has fairly fine teeth.

If you are thinking about the question of how to properly connect polypropylene pipes, then at the next stage the end of the product is chamfered, and it is important to maintain an angle of 15 degrees. In the process of carrying out these manipulations, a chamfer is used; it is important to prevent the formation of burrs. The next step is to thoroughly clean the fitting socket, as well as the pipe, from dust, dirt and moisture.

In order to achieve effective cleaning connecting elements, you need to use cleaners designed for pipes made of CPVC. With the help of this composition it will be possible to prepare the surfaces well enough for further gluing.

Nuances of the work

If you are faced with the task of how to connect polypropylene pipes without a soldering iron, then at the next stage you can apply glue. In this case, you need to use a brush, carefully distributing the composition over the surface of the socket and pipe. The elements are inserted into each other; to distribute the composition evenly, you need to rotate the fitting 90 degrees relative to the pipe. The parts are fixed for 30 seconds, during which time they should not be rotated again. It is important to complete the entire process within 1 minute. If you are thinking about how to connect polypropylene pipes without soldering, then after gluing is completed, you need to check the presence of a bead, which is a uniform adhesive layer located around the circumference. You may have to get rid of excess glue using a soft rag.

Why is it worth using the cold method of joining plastic pipes?

Before connecting polypropylene pipes with fittings, you need to weigh all the positive negative sides other technologies. If we're talking about O adhesive connection which was described above, it is worth highlighting the advantages that it is possible to implement high-quality installation pipes even in places where access is particularly difficult. The master will not have to use additional expensive equipment that can consume during operation a large number of electricity. The whole process can be carried out independently, without resorting to help. professional companies. In the process of gluing parts, a structure is formed monolithic type, which ensures the tightness of the joint. If you decide to use adhesive cold welding, then, unlike conventional welding, inner surface the product will not form sagging, which can narrow the lumen and contribute to the settling of solid particles.

Conclusion

If you connect polypropylene pipes to each other, following the simple rules and recommendations described above, then leaks and sagging of the pipeline will be eliminated. The service life of a pipeline installed using this method can reach 50 years.