Polypropylene pipes are an inexpensive and practical solution for installing plumbing systems with your own hands. How to solder polypropylene pipes, today can be told by any master, at least once faced with such work. But get strong, tight connections and, Consequently, durable water supply system, it is possible, only carefully adhering to the technology of soldering polypropylene pipe. And for this you need to know all the features of such pipes and work with them.
An inexperienced craftsman will be able to create a reliable polypropylene pipeline
How to solder polypropylene pipes
The novice master is quite capable of soldering the pipes yourself. There is a step-by-step technology of soldering polypropylene pipes. You can spend time, and overcoming inevitable mistakes, learn to make reliable and strong connections of polypropylene pipes with your own hands, or seek professional help. However, the technology of soldering a polypropylene pipe is not so complicated, and it is possible to connect two plastic pipes with the help of fittings, even without special experience.
Importantly! The main thing is to accurately maintain the temperature and heating time of the elements, the quality of the connections depends on this.
It is important to know, and how to solder a polypropylene pipe. Usually, amateur use cheap, poor quality equipment, professional - expensive and prestigious. But it's not so much the cost, how much as a heating device and nozzles. It depends on this technique, how well the fittings and pipes will heat up.
The quality of the pipe connection depends on the equipment used
The main mistakes of a novice master, and improper soldering of polypropylene pipe fit in such situations:
- PND pipes are securely fastened together by a layer of molten plastic, therefore it is not necessary to scroll pipes in fittings during cooling. It will not be possible to solder qualitatively in this case, the adhesion of the polypropylene pipe with the fitting will be brittle, and after a while will lose tightness;
- soldering of polypropylene pipes with their own hands involves different heating times of fittings for pipes of different diameters, and how not to overheat the pipe or fitting, and not enough to warm up. You can pre-train soldering polypropylene pipe and fittings, and check the resulting connection, cutting it lengthwise with a hacksaw;
- soldering of polypropylene pipe or HDPE pipe is possible only after preliminary preparation of the pipe itself. The connection will not be strong, if the elements are combined (fitting and pipe) do not degrease in the soldering places beforehand;
- end of the pipe, trimmed with a hacksaw or other tool, be sure to clean up, removing burrs and checking the geometry of the cut. The correct cut has the shape of a circle, and made at an angle 45? to the plane of the pipe. Soldering of polypropylene pipe, having an oval shape on the cut plane is the right way to a poor connection;
- when laying the highway you need to follow from the source to the consumers, implementing connections in those places, where it will be convenient to work with a soldering iron for plastic pipes;
- the traditional mistake of a beginner is to install the system in the cold season. Many do not know through inexperience, at what temperature it is possible to solder a polypropylene pipe, meanwhile, such products are sensitive to cold and cannot be securely connected. Experienced masters at air temperatures below + 5C do not carry out such work.
A reliable connection can only be obtained if the pipe section is processed correctly
Council! Soldering polypropylene pipes with your own hands using a low-quality tool with a simple and straightforward operation turns into a long and painful event. Use a good tool, if it cannot be purchased, then you can rent for sure.
Rules of soldering of a polypropylene pipe allow a way of separate heating of a fitting and a pipe. You can use this method, if there is no other way to establish a reliable connection. Example, so solder pnd pipes in places, to which access is limited - in the space between the walls or for inserting a tee into the existing system.
Soldering temperature of polypropylene pipes
How to solder a polypropylene pipe qualitatively? Very easy, the main thing is practical experience, but it will take some time to get it. Qualitative, a tight connection of a pipe of any diameter can only be obtained if, if not only the heating temperature is properly maintained, but also the cooling time of the molten plastic. If you overheat the PND pipe during soldering, the material turns into porous, fragile structure.
The soldering time of a polypropylene pipe depends on its diameter and the manufacturer, supplemented the pipe with a reinforced layer, or released the pipe entirely of polypropylene. Soldering polypropylene pipes with your own hands will be correct, if you increase the warm-up time, and accordingly, cooling depending on the diameter of the pipe, guided by table data.
Table 1
| Outer diameter of pipes, mm | Sixteen | twenty | Twenty five | Thirty-two | Fourty | Fifty | Sixty-three | Seventy five | Ninety | One hundred and ten |
| Distance to mark, mm | Thirteen | Fourteen | Fifteen | 16,5 | Eighteen | twenty | Twenty-four | Twenty-six | Twenty-nine | 32,5 |
| Warm-up time, with | Five | Six | Seven | Eight | Twelve | Eighteen | Twenty-four | Thirty | Fourty | Fifty |
| Technological pause no more, With | Four | Four | Four | Six | Six | Six | Eight | Eight | Eight | Ten |
| Cooling time, min | Two | Two | Two | Four | Four | Four | Six | Six | Eight | Eight |
It's not just the heating and cooling times that matter. That is also important, at what temperature it is necessary and it is possible to solder a polypropylene pipe. At least, the ambient temperature must be positive (no less +5?WITH), and the heating temperature of the pipe is, according to Sheaf, 260?WITH. Proper soldering of polypropylene pipe is possible only at these temperature coefficients.
The larger the diameter of the pipes, the longer they need to be warmed up for soldering
Supplied with tools for soldering PND pipes (soldering iron) there is almost always a small brochure, in which it is briefly told, how to properly solder polypropylene pipes by thermal diffusion.
How to properly solder a polypropylene pipe
First of all, check the pipe for cavities, roughness and dents. If all is well, then the algorithm is as follows:
- need to be clarified, at what temperature the polypropylene pipe of the diameter chosen by you is soldered, which should be the "technological pause" and the cooling time of the compounds;
- to equip the soldering iron for pipes with nozzles of the necessary size. Those, who knows, how to properly solder polypropylene pipes, nozzle of larger diameter, if several are installed, have closer to the soldering iron handle. This is justified, if the soldering iron has a sword shape, and convenient in the case of a tubular soldering iron for HDPE pipes;
- set the required temperature level on the pipe soldering iron, using the regulator. If the appliance does not have a temperature indicator, wait, while the soldering iron heats up, and the indicator on the device itself goes out;
- cut, if necessary, pipe to the desired size.
The light on the soldering iron body will tell you, when the appliance is ready for use
Wrinkle! The soldering temperature of polypropylene pipe is quite high, and there is a risk of burns from accidental contact with heated elements. Be sure to wear protective gloves.
Polypropylene pipe connection without soldering
The method of "cold welding" is a solution, how to connect a polypropylene pipe without soldering. A special type of HDPE coupling is used, and a special adhesive composition. Not all polypropylene pipes are suitable for this method, it is preferable to use solderless joints then, when it is not possible to work with soldering equipment. How to solder a polypropylene pipe, if it is forbidden to use electric heating devices in the room? To solve this problem, so-called "sliding" and "compression" fittings were created.
Adhesion of polypropylene pipe with fitting, supplemented with threaded connection, will allow to connect to the operating highway from metal or metalplastic pipes. The compression fitting makes it possible to create a non-detachable connection, but requires a special tool.
Soldering of the PND pipe with your own hands can not be carried out, if you connect the pipes and fittings with tension washers. The disadvantage of this method is, you need a special tool, and the skill of the work will not hurt.
The compression fitting makes it possible to securely connect polypropylene pipes without soldering
The question of that is more complicated, how to solder polypropylene pipes, accidentally damaged during operation, without special equipment. But a certain temperature for soldering polypropylene pipe is crucial, so you still have to find a soldering iron, to replace a failed site or fitting. As an emergency, you can use a special glue or mastic for polypropylene pipes.
That the new water supply system did not present a surprise in the form of a leak, it must be tested before commissioning. The easiest way to check the soldering of a polypropylene pipe at the joints with fittings and adapters is to test the system with overpressure..
Secrets of soldering polypropylene pipe without a soldering iron and with this is not the privilege of only highly skilled craftsmen. Knowledge of that, how to properly solder a polypropylene pipe with a fitting, how to solder a polypropylene pipe and how to connect polyethylene pipes, can be obtained from any source - even the Internet. After watching a short video tutorial, easy to get an idea, how to properly solder a polypropylene pipe from any manufacturer. Therefore, even novice craftsmen are quite capable of installing technically complex and reliable piping systems. But only those become specialists, who adhere to the technology and choose the soldering temperature of polypropylene pipes correctly. Using tabular data, which indicate, how to properly solder a polypropylene pipe, you can also spend money, allocated for the construction or repair of communications, more economical.