How to solder PPR pipes right?

Polypropylene pipes get gradually most widespread. The reasons for this. Polipropilenovye of pipe and fitingi to them is relatively cheap. The connection of the fitting and the pipe does not leak later, it can be called almost eternal as the tubes themselves. But it is important to understand how to solder plastic pipes. Remember that the right technology-is the key to success.

Soldering Technology

The Process of welding (soldering) is simple in the extreme! Polypropylene is elastic in thermal heat – he goes into a state that can be compared to clay. When the material cools, its structure dramatically solidifies. Scientifically this process is called polyester welding. When you gain enough experience adhesions polypropylene pipes, then it will seem incredibly easy.

Methods soldering

Now solder two ways. Socket soldering – is the joining of two pipes by means of a special coupling or piece of pipe that has a diameter more than two of the welded item. This method is used, when the welding pipe have a diameter less than 63 mm.

Video soldering – it is just the Union of two adjacent faces of the pipes without any additional third-party elements. This option is preferred in terms of aesthetics, but harder in terms of execution.

To perform this (straight) soldering experience is required. How to soldering polypropylene pipes? These both described variants are considered correct, each method has its own nuances and peculiarities. The choices you make for yourself, but mostly for domestic use solder with clutch.

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Terminals

For soldering any of the above methods require special equipment, and in particular, the special soldering iron. If you look at the design of the soldering iron for polypropylene pipes, it ‘close relative" of the iron. The main part of the device – a massive heater. This heater go under special removable nozzles, supplied complete with device (metal bars of different diameters).

If we are talking about how to soldering polypropylene pipes with his hands, we fit above the soldering iron. He household and is suitable for soldering with use of couplings. If we touch industrial soldering, then you need a special soldering iron for soldering polypropylene pipes butt. Structurally, this soldering iron also has a system for attentance of the welded elements.

Also, soldering irons are available in two main capacities. Typically, the power significantly affects the price of a soldering iron, although there are other components in the pricing of the device.

Welding Procedure

The Main rule: soldering should be carried out while ensuring good ventilation. Melting of polymers causes toxic if you breathe them in excess of, the health of the person will suffer significant harm. Also should have protective gloves, goggles and a respirator. But, it is worth repeating the main rule that should not be neglected. How to solder plastic pipes in terms of security, your health? With the influx of a sufficient volume of fresh air!

At what temperature soldering polypropylene pipes?

If you are using for pipe welding is a specialized soldering iron, and other options can't even be considered, then questions about the proper welding temperature, you even should not occur. Your soldering iron is equipped with a green indicator, when it lights up, then you can begin to work. If the temperature issue is interesting just for General knowledge or your soldering iron is equipped with a handle for setting the soldering temperature, the temperature of the welding of polypropylene pipes is 260 degrees. Before welding two pipes, they are chamfered, and these places are degreased.

Soldering

Questions about how to solder PPR pipes, an important factor is time. The little time of exposure to bad soldering iron will melt the elements that will lead to bad connection. If you turned the elements on the soldering iron, they will start to deform and to change its structure, which also does not guarantee quality of connection.

If your welded pipe has a diameter of 20 mm, then stand it in hot soldering iron to about 8 seconds, the same time the need to weld the elements together. The rate of cooling in this case is considered to be 2 minutes.

If you weld pipe with a diameter of 40 mm, then heat them for 18 seconds, for high-quality welding you will need to hold adjacent elements of about 20 seconds, cool down is 5 minutes in this case.

If your welded elements have diameters between 20 mm and 40 mm, you can calculate all the parameters on the basis of the cited examples.

Pipe welding with reinforcement

Let us Consider in detail, how to solder-reinforced polypropylenepipe. Here the main point – removing the protective material. Why? Just below me get this straight. You also need to understand that the foil in the structure of the pipe (reinforcing layer) necessarily require additional heating.

Feature of such tubes adhesions – their increased diameter, as a rule, such tubes are not suitable for household irons. To solve this problem, the pipes need to be cleaned prior to brazing. You can use for this special sweyer (milling cutter for plastic pipe), the principle of its operation is somewhat similar to a pencil sharpener. Sweyer need for removing the outer layer from the pipe, the planer removes the inner layer of the pipe. The device is selected on the basis of the location of the reinforcing layer to the pipe.

The Exception to the above are the tubes that are reinforced not aluminum, and fiberglass. In this case everything is standard and without complications. Now you know how to solder PPR pipes for heating, because the reinforcing layer is present only in the polypropylene tubes with the purpose for heating.

Common mistakes when soldering pipes

To prevent mistakes, no need to rush. There are a few common mistakes are allowed when soldering polypropylene pipes:

• Left a fatty film on the tube (I forgot to degrease).
• Indirect angle cutting of welded elements (crooked cut edges).
• Weak fit of the pipe end inside the fitting (small experience).
• Insufficient or too long heating of the soldered parts (small experience).
• Poor quality the removal of the reinforcing layer pipe (inattention).
• Adjustment of the location of the welded parts after their initial polymer setting (small experience).

When you know enough about how to solder PPR pipes, this issue does not seem difficult. Wiring pipes from polypropylene helps you to save not only your money but also your time. There is one thing that many confuses in the choice of polypropylene pipes – supposedly their estetichnost. But, it should be noted that any pipe does not look attractive. It is advisable to do, if possible, a hidden installation of any pipelines.