Nowadays, when creating various pipelines, polymer channels are increasingly used. They have many advantages over their metal counterparts. Special attention polymer pipes deserve. The price per 1 meter of these structures is significantly lower than that of metal analogues. Their distinctive feature is convenient installation. Such pipe structures are soldered using
In this article we will analyze the structure of the mentioned device, list the most popular manufacturers of equipment and tell you how to fix the most typical breakdown yourself. You will also have the opportunity to watch photos and videos on the topic of this material.
Device structure
Most soldering machines have approximately the same design. The differences lie only in the shape and methods of installing special attachments.
Any soldering iron for polypropylene pipes comprises:
- housings and handles;
- thermostat;
- heating element placed in a metal casing;
- replaceable nozzles coated with Teflon.
In terms of their method of operation, the devices in question are much like a regular iron.
Some experts call these devices that way. The operation of the device is quite simple. The heating element increases the temperature of the stove inside which it is located. From it, heat is transferred to the nozzles. It is these heating elements that help soften the polymer to the desired consistency.
The thermostat allows you to control the heating process. This part is responsible for maintaining the required temperature conditions, preventing overheating of the installed nozzles. If the thermostat is faulty, it will be difficult to operate the device. Heating elements can become very hot. This will negatively affect the duration of their operation. The metal part of the stove will begin to melt over time. As a result, the device will become unusable.
It is important to choose a soldering machine equipped with a high-quality thermostat. For cheap models this element works unstable. This leads to uneven heating of polypropylene structures. The temperature level may be excessively high or, conversely, low.
Note that for experienced specialists such a defect is not critical. At the same time, beginners will be able to effectively complete the task only with the use of an absolutely working soldering iron. This is due to the fact that professionals intuitively work with the device, and thanks to their skills they will be able to minimize the consequences of using an unstable device.
Based on what has been written above, a simple conclusion is drawn - it is better to use high-quality and reliable technology than messing around with a poorly functioning soldering iron. In this case, it is advisable to use equipment with a thermostat that allows smooth temperature control.
Typical failure: the soldering machine does not heat up
Let's sort it out real case repair of the RSP-2a-Pm device from the Czech company Wavin ekoplastik. The problem was this: the device was heating up, but did not reach the required temperature. At the same time, during operation, the sound of sparking contacts arose inside the device. The device was used intensively for a year.
The repair of the device began with its disassembly. Next it was necessary to establish the cause of the malfunction. First the control board was checked. Next, the soldering iron was turned on and the voltage at the output of the mentioned circuit was determined.
When performing the test, you do not need to wait until the tip is completely warmed up. A similar procedure would be appropriate when testing electronics. In our example, it was only necessary to determine the cause of the breakdown. After checking the board, it would be necessary to move on to diagnosing the heating element.
The soldering machine in question was switched on. The heating indicators lit up clearly. It was assumed that the problem lies in the heating element circuits. To accurately identify the breakdown, it was necessary to disassemble the protective grille heating element.
It was decided to check the thermostat screwed to the heater. The main task of this component is additional protection. The operation of the device was completely controlled electronically. The thermostat was installed in order to avoid uncontrollability of the heating element in case of damage to the thyristor.
If the maximum permissible temperature the bimetallic contacts of the safety device will open and the main heating component will stop operating. In a specific case, the mentioned elements burned. As a result, contact opening began to occur at temperatures below the limit. That's what it was main reason constant underheating of the device.
To eliminate this problem, it was possible to repair the thermostat. But this task is very complex and time-consuming. Replacing the element in question was not feasible due to the lack of spare parts.
As a result, the repairman decided to remove the thermostat from the circuit and connect it directly. To do this, the element was disconnected from the heating element contact. Then a new terminal, purchased in a store, was crimped onto another wire, of blue color. To solve this problem, it is possible to use insulated terminals.
Try to use exclusively heat-resistant cambrics. They must withstand high temperatures.
The terminals are crimped using special pliers. If worst comes to worst, you can also use pliers. The main thing is that the procedure is performed efficiently and reliably. After its implementation, the cable in the terminal must be motionless.
After completing the procedure for turning off the thermostat, it was necessary to assemble the device. During the process, it was discovered that the wire clamp was damaged. To eliminate this damage, a regular plastic clamp was used. After fixing the cables, the excess parts of the plastic were cut off.
Next, the assembly of the device was completed. After this, the device was tested for serviceability. The soldering iron worked like clockwork again. You can use the information from this article for repairs. various models soldering irons
Watch the video:
How to make a homemade soldering iron for polypropylene pipes? U good master always have high quality tools at hand. Even at home, there is always a tool, and if you don’t find a suitable one, you can assemble it yourself. If you have decided to change sewer, water, heating pipes, you will definitely need a soldering iron for polypropylene pipes.
To weld polypropylene pipes, a special soldering iron is used, which operates on the principle of an iron.
Nowadays it is very rare to find iron or cast iron pipes, plastic material has become very popular.
Which soldering iron is better?
There is very big choice of this product. Sales consultants will offer you a variety of tools, but won't tell you which one is best. Therefore, first of all, you need to pay attention to the country of origin. Now in the ranking of the most popular soldering irons, the Czech Republic occupies first place, followed by Turkey, Russia in third place, and China in fourth place.
Such a device is used to heat the ends of polypropylene pipes and further connect them to each other. The device is made in such a way that it can work with different pipe diameters. To do everything right, you need to know temperature regime
equipment. The configuration of the soldering iron consists of a base, two heating elements, nozzles of various diameters, which are attached to special holes.
The soldering iron allows you to easily connect the ends of polypropylene pipes of any size. To understand the working principle of a soldering iron, it can be compared to the operation of an iron. But the iron is equipped with one heating element, and polypropylene soldering iron
– two. It also has a thermostat and an additional built-in tool – a tape measure. The kit also includes an alcohol marker, a level, and a cutter for plastic pipes.
To start working with it correctly, you must first study soldering technology. The soldering iron should be installed on special legs (they are included in your kit), and only then plugged into the network.
Choose an element according to the size of the connector, which is intended for soldering itself. Heat to maximum temperature, connect the ends very quickly and evenly and press together.
In order for everything to work out well the first time, the soldering iron must be heated to maximum temperature - about 20 minutes, then you need to wait 5 minutes for the tips themselves to warm up.
The soldering process itself will take about a minute, but it is better to read the instructions for the device. If there is a pause in the soldering process itself, do not try to reheat, since the pipes are plastic and the material itself stretches, which means that the seam may be damaged.
Return to contents
Homemade soldering iron for soldering polypropylene pipes
If you can’t afford the device or don’t have the extra money to purchase a soldering iron for polypropylene pipes, you need to make it yourself.
This technique can be made using an old iron.
- You will need:
- iron 800 W;
- heater (not with a spiral, but with a heating element, preferably in an aluminum casing);
- Chromel-Copel thermocouple;
- two tips;
- two wires about 1 m long each;
- old tape recorder;
- asbestos wool;
- plexiglass;
The soldering process itself will take about a minute, but it is better to read the instructions for the device. If there is a pause in the soldering process itself, do not try to reheat, since the pipes are plastic and the material itself stretches, which means that the seam may be damaged.
dichloroethane.
Stages of work execution
The most convenient way to make a homemade soldering iron for polypropylene pipes is from an old iron.
The temperature regulator is removed from the iron plate.
Go to a turner and order two tips, one for the pipe, and the other for the fitting (for the fitting and nut). Take the dimensions yourself; to do this, measure the diameter of your pipe.
When the turner has done everything, use a drill to drill a hole with a diameter of about 6 mm, take the bolts and screw the ends.
On the opposite side from the nose of the iron, drill a hole of such a size that you can easily install a thermocouple.
All parts are connected and assembled into a casing.
Take a wire approximately 1 m long and connect it to a thermocouple.
Then they take another wire of the same length and connect it to the heating element. Exited out through the top of the handle.
The handle itself is attached with outside casing.
At the next stage, it is necessary to create a space between the casing and the tile; it must be filled with a thermal insulator; you can take simple asbestos wool.
You should end up with two tips protruding beyond the casing; they need to be thermally insulated.
Now the thermostat itself is placed; it needs to be placed separately and preferably in a plastic case. You can use plexiglass and dichloroethane.
An old tape recorder can be useful for indication; there is an indicator, and in it there are arrows and, most importantly, a zero mark. By all rules, this mark will be 270°.
If the arrow shows in the red sector, it means the temperature is above normal, and if it shows in the yellow sector, it means below.
Another important element is the resistor; it is located outside the thermostat housing.
It will show whether the heating element is working.
The process itself is as follows. As soon as you plug in the soldering iron, use the handle to set the temperature to 270°.
The LED will light up and give a signal that the soldering iron is starting to heat up to desired temperature, and when it goes out, you can start working.
It’s up to you to decide what’s better – to assemble it yourself or buy it. New soldering iron construction market will cost 15-18 thousand rubles. If you want to assemble it yourself, it will only cost about 2 thousand rubles. since any owner always has an old iron in the garage.
Choosing a soldering iron for polypropylene pipes
Polypropylene pipes today have almost completely replaced the previously used metal pipes. 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 metal plate having holes for nozzles.
The main task of the soldering iron is to maintain the desired 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 increasingly you can 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 installing pipes at home, a soldering iron with a power of 700 to 1200 watts is suitable.
Minimum power 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.
The optimal temperature for soldering is +260C. At a lower temperature, the pipe fits into the nozzle for too long and too tightly, which does not provide 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 only possible 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, to increase their strength and durability, they use various coatings. 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 left after previous works.
Cost of the device and fittings
All manufacturers recommend using a soldering iron for plastic pipes with a diameter of 16-63 mm, with 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. 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 you to use in almost all communications plastic pipes. 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 operating principle of a soldering iron for plastic pipes is simple - inside it there is a heating element, which is heated by a voltage of 220 V, and from it the nozzles for pipes and other elements are heated. 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 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 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 also 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 using it. If we evaluate the characteristics of the offered 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 allows you to successfully use this equipment for welding plastic pipes. An additional advantage of the presented models of soldering irons is their small sizes and the availability of a variety of attachments for pipe welding work various diameters.
According to reviews from 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 Our company has an affordable price for 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 By 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 from 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 give 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 need Additional Information and consultation. 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.
Contents Plastic pipes for water supply - assembly and operation features Installation plastic water pipe Self-installation plastic water pipes Which pipes to choose for water supply. Plastic pipes for water supply - features...
Contents Methods of connecting plastic pipes with metal ones: analysis 2 Replacing metal pipes with plastic Replacing pipes: plastic or metal Specialists - Krasnodar Vodokanal - are replacing metal pipes with...
Contents Do-it-yourself welding of plastic pipes (VIDEO) Toilet repair plastic panels Repair of plastic pipes Video repair of plastic pipes Defect in soldering of polypropylene pipes. Welding plastic pipes with your own hands (VIDEO)...
Pipes and fittings made of polypropylene can be said to be in trend today. They are used for indoor plumbing and heating wiring and networks inside houses and apartments. The popularity of this material is primarily due to the ease of working with it. Unlike metal pipes, they do not need to be bent with a pipe bender, threaded, or welded. All the labor intensity of this profession became a thing of the past with the advent of such material as polypropylene.
The main tool for working with polypropylene products is considered to be electric soldering iron or iron. In the factory kit it is equipped with nozzle sleeves for soldering pipes and fittings standard diameters. They can also be purchased separately. But there are times when, for some reason, a factory soldering iron is not available and there is no way to buy it, and of all the parts, only welding attachments are available. This is where a homemade plumbing soldering iron comes in handy.
This homemade product is one of those “blow, spit, and do the job.” You can literally assemble it on your knees from an old iron and a wooden block. With such homemade heater you will definitely save the situation and cope with soldering polypropylene pipes. And now we’ll show you how to do it.
What you need to assemble a soldering iron
- An old iron with a working heating sole;
- Wooden block, approximate cross-section 40x50 mm, length 40-50 cm;
- Four self-tapping screws, 3x14-16 mm;
- Sleeve attachments for a plumbing soldering iron with a clamping bolt;
- Power cable with plug;
- Electrical tape, 45 mm self-tapping screws.
Assembling a homemade soldering iron for polypropylene pipes
First of all, we disassemble the household iron, disconnecting the soleplate from the thermostats. We won't need the rest of the iron anymore.
Next we prepare wooden block. If necessary, it can be sawed, planed, or simply cleaned on an emery wheel, as the author of the homemade product did (photo).
To secure the bar, we drill several holes on the sole of the iron, in an area free from the heating element. The diameter of the drill should be less than the width of the screw head.
We insert the block adjusted to the cross-section into the groove of the sole, and attach it to several screws using a screwdriver and a Phillips bit.
There are bolts at the end of the heater contact group. We drill slot holes for them on both sides of the block, and unfold the contacts with pliers to connect them.
We press the contact plates with several self-tapping screws - press washers.
Not far from the end of the sole, we drill a hole for the clamping bolt for the sleeves. Now you can attach several paired welding attachments. We place them on the clamping bolt and tighten them with a hex wrench.
All that remains is to connect the power cable to the contact group, and wrap the contact area on the handle with electrical tape.
The soldering iron is ready for use. Such a device can be used for soldering polypropylene pipes and fittings, making plumbing or heating wiring.
Conclusion
Despite the simplicity of the design, it cannot be considered completely modified. It does not have a heating thermostat with automatic protection. The ergonomics of the tool also leaves much to be desired, because such a device must stand firmly on its edge during operation. However this homemade apparatus serves as proof that if desired, even specialized tool can be assembled from scrap parts.One of the best ways replace old pipeline elements or lay a new one - do the installation of polypropylene pipes yourself. The work will not take much time if the house has the pipes themselves, the necessary set of fittings and welding machine for polypropylene pipes. In just half an hour you will be able to use the new system.
This welding technology is called socket (socket) welding. The pipes are not connected joint to joint, like metal ones, but through additional adapters - fittings, with which the edges are soldered at a temperature of 260 degrees. There are also adapter fittings from a welded to a threaded connection.
Welding machine 
Types of fittings for polypropylene
For full-fledged work You will need the following list of tools.
- Welding equipment (machine for welding polypropylene pipes, special iron, soldering iron)
- A set of nozzles for a soldering iron (the most popular models are 20 mm)
- Special scissors or ring cutter. For small amounts of work, you can get by with a regular saw/knife
- Shaver for cleaning the contour (needed when removing reinforced coating, if any)
- Bevel remover. It is used in case of poor quality of the contour (rags) so that the plastic does not lift up. But this will not happen when using special scissors. If necessary, you can make a sharpener yourself by soldering a knife blade into a fitting at 45°
Homemade welding machine for polypropylene
The price of soldering irons for polypropylene pipes starts from 1000 rubles. If the amount of work is not so large and you want to save money, then you can make a soldering iron with your own hands.
For this you will need:
- old iron – 0 rub.;
- double-sided nozzle right size– 250 rub.;
- computer thermal paste – 140 rubles;
- drill, metal drill and bolt with washer of the appropriate diameter.
- Screw the attachment to the soleplate of the iron, lubricating its ends with thermal paste for good heat transfer.
- Decide in advance how it will be more convenient to work, and secure the nozzle with the larger side up or vice versa. It is important to do this at the beginning, because when the iron is hot, it will be difficult to change it.
- Saw off the sharp tip of the iron to make it easier to work against a wall.
- Before using, warm up the iron for a few minutes and wait for it to turn up the heat a second time.
- The nozzle temperature should be 260°-270°C. If there is no temperature sensor, you can approximately measure it using lead and tin. Tin (for solder) should melt well, its melting point is 231°C, and lead will begin to melt only at 327°C.
Video lesson
Video instructions will show how to weld polypropylene pipes.
Installation instructions
- Before starting work, it is important to decide on the location of the pipes. It is advisable to make a plan on paper to reduce the number of welding “on the fly”. It will be much more convenient to assemble the main elements on the table, and then secure them into the system in several steps.
- To connect polypropylene pipes, the edges of the elements are heated. The inner wall is heated in the coupling, and the pipes are heated on the outside. To do this, they are almost completely put on the soldering iron nozzle and held for several seconds.
- After this, the elements are immediately connected in the desired direction. You'll have a couple of seconds to center them if necessary, usually done by eye. In this case, you cannot rotate them internally in relation to each other. Welding time depends on the thickness of the plastic and the width of the seam.
- The heated polypropylene will mix at the joint, and will weld securely if it is heated to the desired temperature. It is also impossible to keep it on the soldering iron for too long, the plastic may leak, the internal diameter of the channel will decrease, and the tightness of the connection will be compromised.
Before soldering polypropylene pipes, be sure to open the valve on the coupling, otherwise air will push it out of the soldering iron nozzle.
- At correct connection part of the plastic should come out evenly, forming a slight overhang on the coupling. If problems arise when putting it on and the plastic bends too much, you need to chamfer the edge.
According to German standards DVS-2207-1, stripping for polypropylene pipes must have an angle of 15° and a recess of 2-3 mm. In Russia, the standard is a chamfer bevel of 45° and a recess of 1/3 of the thickness. In fact, any bevel within these limits will do. The main thing is that it is uniform.
Manual pipe cutter - The welding machine for soldering must be placed on a stand (special clamp). You need to set the temperature on the regulator to 260°C, but for speed of work you can increase it to 280°C. Other temperatures will lead to an unreliable connection, so when purchasing a device it is not necessary to choose a model with a thermostat.
- The elements will be difficult to fit onto the heating nozzle because they have a larger radius. When putting them on, you can turn them a little along the axis to make it easier to put on the nozzle. However, the pipes cannot be inserted all the way, so that their ends do not melt inside. At first, to avoid this, you should make marks with a pencil, but then it will not be difficult to feel the desired depth.
- When all the elements are assembled, you can start hanging welding. Usually these are transitions between walls, connections to batteries, water supply inlets.
Ordinary plastic pipes are only suitable for cold water, they are not designed to work under pressure. When installing pipelines and heating, only reinforced polypropylene pipes must be used. To weld them, you will need to remove part of the reinforcement with a special shaver.
Shaver for cleaning edges from reinforcement - If the pipes are suitable for the boiler, there should be no plastic nearby. To “keep it out”, pipes are connected using an adapter from a welded joint to a threaded one, through a metal pipe more than 0.5 m long.
- Do not forget to install a shut-off valve before the new section of the pipeline, this will help when repairing or installing a new point.
- Starting a new section will show whether the soldering process was completed correctly. After opening the shut-off valve and letting water into the system, check all connections for leaks.
Connecting metal with polypropylene
During repairs, situations often arise when a new section of polypropylene needs to be connected to old metal pipes. This connection done using special fittings. If a fitting is soldered to polypropylene with a soldering iron, then when connecting to metal pipe you can go two ways. You can weld the pipe to the fitting using a welding machine, or you can cut a thread on the pipe and screw the fitting. It’s easier to weld, but you need a welding machine, so you usually cut a thread on the pipe. Before the joining operation, the iron section is cleaned and lubricated with grease.
The use of polypropylene pipes allows you to hide them inside the wall, unlike screw metal pipes. It is first important to ensure that the connections are tight.
Now you know how to properly solder polypropylene pipes, and you can easily do it yourself. Practice on small scraps first, and you'll quickly be able to update your home's plumbing.
