Very often in the process of repair work there is a need to replace the plumbing system or heating. As an alternative to the usual metal pipes, polypropylene pipes are used today, which are distinguished by high technical qualities.
The device for the soldering of plastic pipes.
Welding polypropylene pipes with your own hands is a fairly easy process. But it should be understood that it is necessary to strictly comply with the technology of implementation. Only in this case a qualitative result will be obtained.
It is possible to operate the system from polypropylene pipes in half an hour after welding. In order to connect the elements of polypropylene, it is necessary to use socket welding. The clutch method involves the use of a special nozzle, as a result of which the soldering occurs at the expense of the internal soldering, and not end-to-end
To work without interruption, it is worth preparing:
Polypropylene pipe welding time.
- a soldering iron with which the flare soldering of polypropylene elements will be performed;
- depending on the diameter of the corresponding nozzles are used;
- pipe cutter (most often sold with a soldering iron), special nippers can be used;
- if products with aluminum coating are used, it is necessary to use a shaver with which it will be removed;
All the necessary tools are available in every hardware store. To carry out high-quality work and get a good result, you should purchase high-quality equipment. Do not buy the cheapest option. This is especially true of the soldering machine.
The higher the product quality, the longer the instrument will last. He will be able to do his job for a long time, while all heating elements and Teflon coating of the nozzles will remain in good condition. When choosing a soldering iron, it is very important to choose a kit, which includes a special stand that will facilitate the work.
Connection scheme of polypropylene pipes with couplings.
Combining polypropylene elements using scrap materials is almost impossible. Despite the fact that all the work in this direction is relatively light and does not require much experience, it is necessary to follow a certain sequence in which the connections are made.
It is also necessary to use only special equipment designed for this purpose. The only thing you can replace is a pipe cutter. To cut a polypropylene element can be the easiest saw on wood. But it should be understood that the process will be longer, and labor costs will increase.
Before proceeding to the work, it is necessary to prepare a gasket scheme. It will give a complete picture of which areas it is worth starting with and which parts will be soldered and installed at the very end. This is necessary in order to minimize the amount of work that will be carried out on weight. With the right distribution of work, specialists perform soldering of difficult sections on the table, and only after that the section is installed in the right place.Back to table of contents
The process of soldering polypropylene pipes
In order to make a good connection of the edges of the pipe, it is necessary to heat two parts. One element warms up inside, the second outside, it is done simultaneously. After these elements are connected, the process of mixing polypropylene occurs, resulting in a reliable joint.
Plastic pipe soldering scheme.
Soldering polypropylene pipes begins with the preparation of all necessary elements. To do this, the sections are measured and the necessary parts of the pipe are measured. With the help of special scissors or saws cut the required length. In the outer part of the pipe without fail it is necessary to make a chamfer. International standards apply to this process, according to which the chamfer should have a slope of 15 degrees and go down by 2-3 mm.
You can also follow the national standards. According to them, the angle at which the chamfer is made should be 45 degrees, while the deepening is carried out on the third thickness. You can use any option, it all depends on the operating conditions and personal preferences.
To perform a chamfer, you need any object, as a result of which a uniform, even layer of material will be removed. Before you make a spike, it is necessary to degrease the chamfering place and check that there are no impurities and chips inside, which can significantly impair the passage of water.
Before welding polypropylene pipes it is necessary to prepare a soldering apparatus.
Scheme of soldering pipes PND.
It is mandatory to install it on a special stand. If the device has a temperature controller, it must be set to 260 ° C. This temperature is ideal because it is enough to warm the polypropylene well, and at the same time the temperature will not damage the Teflon coating of the nozzles. In addition, there is no too much load on the heating devices, so the device will last a long time, while maintaining their positive qualities.
After the soldering iron is heated to the required temperature, you can begin to weld the two parts. During this process, two parts are involved simultaneously. On the one hand, the product is inserted into the sleeve, and on the other hand, it is mounted on a special fitting of the required diameter.
After the material has softened enough, they are simultaneously removed from the soldering tool and as quickly as possible connected to each other. It is very important to keep the pipe elements on the device for welding for a certain time. Time will depend on the diameter of the product and wall thickness. Overheating will have a negative effect on the fitting and on the element, they can be deformed, and it will be impossible to solder them.
In turn, insufficient heating can lead to unreliable connections, resulting in leaks. In order to find out the necessary aging time, it is necessary to study special tables, the information in them is given relative to world standards.
When inserting an element into a sleeve or fitting, some effort must be made. The element must be inserted until it stops, but do not push very hard. This can cause an influx inside the pipe, as a result of which the permeability of the system will significantly deteriorate.
In order for this not to happen, you can measure the depth of the sleeve and make a mark on the pipe from the edge. This will give the opportunity to visually monitor the process of work. After a while, when you gain experience, it will be felt with your hands, and you will not need to make markup.
The connection of the elements after heating is necessary as quickly as possible. In no case can not rotate the elements. Welding of polypropylene pipes occurs as a result of the fact that the two elements are inserted into each other, and the axis must be observed. Any extraneous movement during the connection may result in a disruption of the joint.Back to table of contents
The main features of the installation of polypropylene pipes do it yourself
- Installation is carried out in parts, it greatly facilitates the assembly process.
- Installation of valves and connections with heating devices can be done at the very end.
- For fastening the entire system to the wall, special plastic clamps are used. They must be pre-attached with dowels.
- To connect with a metal element, you must use special fittings.
By following all the recommendations, you can do this process yourself. Good luck!