Polypropylene pipes are in active demand among summer residents and owners of private houses of permanent residence. And not surprisingly, such a pipeline is able to withstand various operating conditions, including temperature differences.
In addition, the cost of pipes, low weight and ease of assembly of the structure justifiably makes them a demanded material. Moreover, you can assemble the pipeline yourself - you will need an iron for welding polypropylene pipes and the skills to work with such equipment.
Mastering the welding machine is quite simple, the main thing is to adhere to safety measures and the rules for using the iron. Doubt your own strength? We will help you choose a reliable device, get ready for work and solder the pipeline.
The article outlines the basic criteria for choosing an iron, identifies popular manufacturers, and also describes a step-by-step instruction for using the welding machine.
How the equipment is arranged
At home, polypropylene pipes are welded using a welding machine called an iron. All of them differ in technical characteristics, color, size and cost. But their appearance and operating principle is similar for all manufacturers of such equipment.
Typical structure of a welding iron:
- a pen;
- wire for inclusion in the electrical network;
- iron operation indicator;
- indicator of the device reaching the set temperature;
- temperature regulator;
- heating plate with holes for installing nozzles;
- nozzles for heating pipes - sleeve for putting on pipes and mandrels for fitting;
- stand for installation of the device.
Depending on the model of equipment, there may be mechanical or automatic temperature control. In cheaper models, a mechanical temperature regulator is installed, which allows you to set the desired heating temperature.
The appearance of the apparatus resembles a household iron for ironing clothes, which contributed to obtaining the same name as a device for welding in the midst of ordinary people (+)
A professional device can be equipped with a display that displays the temperature change in real time. When the desired heating level is reached, the appliance switches off automatically. This display allows you to monitor the slightest fluctuations.
More expensive welding irons are able to maintain the desired temperature for a long time, and when cooling by 2-5 degrees, the heating of equipment automatically turns on
How to choose the right device
The abundance of offers makes it difficult for an inexperienced user to choose - it is difficult to immediately buy the perfect iron for welding, which will be convenient and will last a long time. The choice of a suitable device should be approached carefully by comparing the necessary parameters with the model you like.
Required iron power
First you need to determine the required power of the equipment. For this, it is necessary to clearly highlight the front of the upcoming welding of polypropylene pipes. You can certainly aim at the range of 1.5-2 kW, as some masters advise. But it will be a more expensive device, which, most likely, will not be used 100%.
When it comes to a modest pipeline with a pipe diameter of 16-25 mm, a serious unit will be an waste of money - you can easily do with a Chinese iron for 1000 rubles, the power of which is from 350 watts.
The power of the device and other technical specifications are often applied by manufacturers on one side of the device
To calculate the required power of the welding unit, one should proceed from the maximum diameter of the polypropylene pipes to be welded. This diameter must be multiplied by 10 and add 30%. This is a safety margin so that the iron does not work to the limit of its capabilities.
So, for a 25 mm pipe, the power of the device will be: 25 * 10 + 30% = 325 W. It turns out that the power of the future iron should be from 350 W - this is quite enough for welding polypropylene pipes 16, 20 and even 25 mm in diameter.
For large-scale work, it is better not to save and purchase a more powerful iron - 1.2-1.5 kW. Such power will allow reliable connection of plastic pipes with a diameter of 40, 60 and more mm. Up to 10 cm.
The manufacturer indicates the capabilities of a particular device and the features of its use in the instructions or passport. If there is no such document, it is better to refuse to buy an iron by choosing another device that has the necessary documents
Complete set of the welding unit
In addition to power, you should pay attention to the device itself and its configuration. The quality of the material the iron is made of is also important. And without gloves, tape measure and a pipe cutter for PP pipes, it will be difficult to cope with the task for a home master who does not have experience in carrying out such work.
The teflon coating of the liner and mandrel must be of high quality. Sometimes it’s better for a cheap device to buy expensive nozzles, for example, blue from Dytron
Therefore, before buying an iron, you should pay special attention to such points:
- Number of nozzlesgoing bundled. If there are few of them, then it is better to buy the required diameter, choosing the right ones.
- Teflon coating quality - for more expensive irons, nozzles with a good coating are included. Also, you can buy expensive nozzles for the cheapest units, where high-quality Teflon is applied.
- Lack of plastic elements - the iron body must not contain polymer parts. The handle and other elements of the body of a good device are made of heat-resistant material.
- Availability in the set of necessary equipment - gloves, scissors for cutting polypropylene pipes, the necessary nozzles, tape measure, instructions and other accessories. If you buy all this, it will be much more expensive.
- Product packaging quality - The manufacturer supplies a good iron in a metal case, where all components take their places.
As for the configuration, it directly affects the cost of the device. Here you should find the most suitable option for your wallet - how much they planned to spend on this equipment.
It is not worth buying an iron in a paper box - it will not be convenient to store and transfer it from the installation site to the garage. Moreover, nobody puts a hot device in a paper box
When it comes to assembling a plastic pipe at home, at the cottage and at the mother-in-law, it is better not to save on the tool - it’s 5-10 times more expensive to hire a specialist. If you have to replace a section of the pipeline, then you don’t have to buy an iron at all - you can rent the necessary equipment.
The cost of the service depends on the region of residence and the model of the device. On average, an iron for welding can cost 150 rubles per day.
Value for money
Choosing the right iron for welding, I want to focus on the optimal ratio of quality and price. So, the cost of individual models can start from 800 rubles and reach 20,000 rubles. Such a range will perplex the beginner.
In order not to get confused, it is important to initially determine the task that the device will perform. If the scope of work is very modest, then you should not overpay - a suitable model of Chinese production for 1.2-1.5 thousand is quite suitable.
For example, Foxplastic, made in China and having a perfectly acceptable configuration. Moreover, to buy separately scissors, gloves and nozzles will cost an order of magnitude more expensive.
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Rothenberger for welding polypropylene
Chinese iron Foxplastic
All irons for welding polypropylene have their own characteristics depending on the country where they were produced. So, the most desired brand is Rothenberger. The devices of this German company are not cheap - their cost starts from 10 000 rubles.
The second step is occupied by Czech devices - these are various models of irons from the company Dytron. The cost depends on the specifications. But experts note the high cost of the brand - not every newcomer will allow himself to have such a device.
Although it’s still worth buying a separate nozzle, the Teflon coating will survive more than one cheap iron for 850-1000 rubles.
Candan Turkish iron pleases home craftsmen with excellent models at an affordable price. Yes, and the grade of irons is good
Turkish companies are in third place: Valtec, Candan, Cobra, Kalde other. They occupy a wide niche among such equipment - original irons are able to last 3 years or more.
When buying Turkish devices, you must definitely look at the manufacturer so as not to get a fake. Such a situation is not uncommon now, so you should carefully examine the proposed purchase before paying its cost.
Many domestic irons for welding polypropylene are collected by the Chinese. This, for example, Sturm Energomash and others
At the last step are the most budget models assembled by Chinese factories. There are many of them, moreover, often domestic brands assemble their devices in the same place - in China.
Chinese irons have a low price, but the guarantee for such products is about 1 year. And some manufacturers do not give any guarantee at all. Therefore, before buying, you should carefully study the packaging and check for a passport or instruction and warranty card.
For a modest front of work, an iron for 900-1500 rubles will be just right. If the budget allows, it is more advisable to pay attention to Turkish devices, which will help to assemble more than one polypropylene pipeline.
Welding Iron Guidelines
In order for the equipment to serve for a long time and not bring a lot of problems, it is important to operate it correctly. Otherwise, instead of pleasant work, there will be continuous troubles - broken equipment, an inoperative pipeline and burnt hands / feet of an inattentive craftsman engaged in welding polypropylene pipes.
Work safety measures
It is important to adhere to the basic rules for working with iron prescribed by the equipment manufacturer. Although irons are different from different companies, personal safety measures will be the same in all cases.
Firstly, do not touch the heated device with bare hands or feet - the temperature of the heating plate can reach 260 ° C and above.
Heat-resistant gloves will protect the hands of a home craftsman from accidental exposure to hot surfaces during welding
Protective gloves should be used for safety. They can go in the kit and lie in the suitcase in which the manufacturer supplies his device. Otherwise, it is better to purchase a heat-resistant pair of gloves in advance and carry out all the welding of polypropylene pipes in them.
If the manufacturer does not supply special gloves with the device, they should be purchased separately. No need to save on this personal protective equipment - treating burns will be much more expensive
Secondly, when carrying out welding of polypropylene pipes, it is necessary to clean the working surface of nozzles from adhered plastic in a timely manner. This is right to do immediately after connecting the next section of the pipeline.
Do not wait until the unit cools down - it is enough to take a soft cloth or a special device for cleaning Teflon surfaces and carefully remove the remaining polypropylene from the sleeve and mandrel.
When sticking plastic remains on the nozzle after the next warm-up of the polypropylene pipe and the coupling, it must be removed without waiting for the iron to cool completely
You should carefully select a tool for cleaning Teflon nozzles.
It is strictly forbidden to use the following:
- cleaning products containing abrasive substances;
- metal scrapers and sponges;
- liquids that can damage the Teflon coating.
Thirdly, Do not drop the iron or fill it with water. If it falls, it may become damaged and stop working. And to cool the iron, just unplug it from the outlet and wait a couple of hours - the device will completely cool down by itself.
Fourth, from the room where the installation of the pipeline is carried out, it is necessary to remove animals and children. Do not forget about the high temperature of the working parts of the welding iron.
Although working in a company with a pet is more fun, it can be quite a dangerous activity for him - the animal may accidentally cripple by touching a red-hot nozzle
First start-up
Separately, it is worth noting the first launch of the purchased equipment - this should be done outdoors. The fact is that in the new welding machine, the internal parts are coated with a special lubricant, which will begin to smoke when the iron is first heated.
A rather unpleasant odor and thick smoke will appear - it is better when the device is tested outdoors.
No need to be scared if the first time you turn on the iron there will be an unpleasant smell - this is quite acceptable. To calm down, you should read the instructions for the device provided by the manufacturer in advance. Often, the seller does not warn about this feature of a naive buyer who does not have experience in using such equipment.
If everything is assembled correctly and third-party objects do not touch the heating part of the iron, and the smoke is flowing, it means that the protective grease applied by the manufacturer burns out
After the first start-up of the apparatus, it is advisable to practice before proceeding with the welding of a real pipeline. Especially if there is no experience in carrying out such work. It is also advisable to get used to the features of the iron when a very cheap Chinese device is purchased.
Often you can find reviews of real users who are advised to set the temperature in the range of 220-230 ° C. This fundamentally contradicts the rules for welding polypropylene pipes, where the required temperature is 260 ° C.
Everything is right here - the problem is that many cheap irons made by the Chinese simply do not know how to maintain a stable temperature in a given range.
With the correct heating of the desired section of the pipe and connecting fitting, and neat connection, a double even plastic ring is formed at the junction of the two parts
Therefore, when the user set 230 ° C, then after 10 minutes the actual operating temperature may well reach 255-265 ° C. It is not surprising that at a specified temperature of 260 ° C, an inexperienced welder receives burned parts or a connection that is completely unusable.
In such cases, you must definitely practice making the correct connection and get used to your iron. Moreover, for training you need a couple of hours of free time, 5-7 pieces of pipe and the same number of fittings. This is an inexpensive pleasure - one fitting costs around 10 rubles.
During training, it is important to check the seam from the inside - to do this, cut the cooled joint and see if the inner diameter of the pipe is narrowed after welding
How to use an iron for polypropylene
For the proper use of the apparatus for welding polypropylene, it is necessary to study the instructions supplied by the manufacturer. Then you have to open the package, preferably it was a suitcase, and assemble the device by installing a sleeve and mandrel of the desired diameter.
The soldering iron itself has to be firmly fixed by installing it on a special stand. For more comfortable work, the masters advise screwing the stand to the board or sheet of plywood, and then put the iron on. This ensures greater stability when working with equipment
In the legs of the stand, you can independently drill holes in order to fix the device on the table or on the board with self-tapping screws. This will make the use of the iron comfortable when welding.
When the necessary nozzles are fixed, it is necessary to turn on the device in the socket and set the temperature using the thermostat. It can be a wheel that needs to be twisted, indicating the desired number or an electronic display - the details of the settings depend on the model of the device.
The operating temperature for welding polypropylene pipes is 260 ° C. This parameter should be specified.
The warm-up time of the device depends on the power and features of the model - it can be 5 minutes, like with irons Wellner, and 20-30 minutes with Chinese devices.
When the indicator has signaled that the operating temperature has been reached, the pipe welding process can begin.
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Pick up pipe and fitting
Degrease the polypropylene pipe section
Degrease fitting area
Insert the pipe into the sleeve, and put the fitting on the mandrel
hold the pipes on the nozzles for the right amount of seconds
Remove the pipe and fitting in one motion
Wait 10-20 seconds for plastic to harden.
Wait for the polypropylene to cool completely.
It is important in the welding process to adhere to the time indicated in the special table going to the specific device.
There, the manufacturer indicates:
- the heating time of the pipe and fitting in seconds;
- the time in which you need to have time to connect 2 parts is from 3 to 5-6 seconds;
- the time it takes to fix and create a reliable seam is from 10 to 20 seconds.
All these parameters may differ from different manufacturers of irons, so you should act according to the information given in the iron passport.
After trial welding is completed, cut the connection and check the quality of welding - it is important that the inner diameter of the pipe does not become too narrow
If all succeeds, then you can continue to work on welding polypropylene pipes. At the end of work, unplug the equipment from the outlet and wait for it to cool. Then remove the nozzles and put all the accessories in a suitcase.
Iron should be stored in a special metal case, which will extend its useful life and protect against accidental damage
In addition to the iron for soldering polypropylene pipes use cylindrical soldering irons and other devices. More information about different welding machines is written in this article.
More expensive models of irons have their own advantages, allowing to simplify the process of soldering polypropylene pipes, especially in the absence of practical experience at home craftsmen. About this in the video clip:
The rules for soldering polypropylene pipes are demonstrated in detail in the video clip:
The video clip gives an overview of the iron for welding by a Turkish manufacturer:
Having studied the basic rules for choosing irons for welding polypropylene, you can choose a device for personal use at an affordable price for your wallet. It is not difficult to use an iron - if you wish, you can weld a polypropylene pipeline on your own by buying a welding machine.
This will help to significantly save on the call of masters specializing in welding polypropylene pipes.
Looking for an iron to assemble a polypropylene pipeline? Or do you have skills with such a device? Please share your experience with readers, ask questions and participate in discussions. The comment form is located below.