Installation of metal-plastic pipes with their own hands

Metal-plastic pipes in our time quite successfully replace the usual of metal. The lack of condensate, simplicity of care and installation - all this was the reason that people try to buy a metal-plastic pipe for the arrangement of communications in their home ownership.

In addition, the known flexibility of such products allows you to reduce the number of connecting nodes, which is also an indisputable advantage.

Composition of metalplastic pipe

1. Outdoor layer of plastic.
2. Average aluminum layer.
3. Inner plastic layer.

Actually, the outer and inner layer perform the role protectional protecting the middle layer from a mechanical damage but also against the adverse effects of the environment (humidity, temperature changes, chemical influence and so forth.).

Classification of plastic pipes

Depending on the size

Pipes metal is composed of three layers and is of different diameters (16-32 mm). Is widely applicable metal-plastic pipe of diameter 20 mm. Depending on the technological conditions also varies, and the thickness of the tube wall.

Depending on the manufacturer

The most tradable commodities in this group of Belgian, Italian or German manufacturer.

Depending on the compatibility with the fittings

1. Made specifically for assembly with the fittings of one producer.
2. Universal, combined with fittings of different brands and models.

"Pros" plastic pipes

1. Flexibility.
2. The possibility of applying for the installation of various types of communications (water line and heating networks).
3. Corrosion resistance.
4. A relatively small price.
5. Easy installation.
6. Lack of extra care needs (regular painting and so forth.).

"Cons" multilayer pipes

1. The short lifetime (about 15 years).
2. The probability of damage of metal pipes in the case of freezing water therein under the influence of low temperatures.
3. The need for revision and braces connecting nodes, obtained by applying the method of compression fittings, every 3 years in order to avoid leakage.

Existing methods of installation pipes made of metal

1. Method of using a screw (threaded or compression) of the fitting.
2. Method of applying a press-fitting.
3. Assembly using crimp sleeves.
4. Installation with installation of couplers press fittings.

Here it should be noted that the connection with the press-fitting, which gave the leak can not be repaired. It is only necessary to change to a new fitting. you can try in case the fittings tuck, twist, etc.

The structure of the fitting

1. Frame. It consists of the thread on the one hand, and fitting rubber-sealing ring - other.
2. Crimp nut.
3. Cone ring.

The principle of operation of the fitting

With tightening the nut compresses the ferrule tube. Tube, in turn, tightly fitting covers with rubber gasket.

How to install metal pipes with their own hands

What do you need?

1. Tape measure and pencil for marking.
2. Scissors special for cutting pipes (do not attempt to replace with knife or ordinary scissors. This may damage the protective layer).
3. Calibrist, round file.
4. Press for fitting.
5. Wrench.
6. Hydraulic or mechanical press clamps.
7. Expander for a supervision press fitting.

How to mount?

For beginners, it is better to start, familiarize yourself with the video:

Using screw fitting

1. Draw a plan for the future placement of pipes and access points with all sizes.
2. Measure the cut pipe of the required length.
3. Cut with special scissors.
4. Align the crumpled edge using the caliber.
5. Clean the slice from irregularities and sowing a round file.
6. Take a threaded fitting and unwind it.
7. Remove the nut and clamping clamp, put them on the edge of the pipe.
8. Insert the pipe into the fitting.
9. Pretty align and lower the clamping clamp in place.
10. Start twisting the nut manually.
11. Adjite it using a wrench to a specific cod.

All is ready! However, it should be noted that such compounds must be constantly in sight. Those. If you plan to hide a wiring into the walls, this method is not for you. Here you need another approach.

Using crimp couplings

1. Measure the desired cut pipe.
2. Cut and calibrate.
3. Put the crimp coupling.
4. Ginger cut, removing roughness.
5. Insert the cut into the fitting with the rubber gasket.
6. Cut the coupling when the ticks appear on it clear rings.

Using supervisory press fittings

1. Measure and cut the pipe.
2. Dress the coupling.
3. Ginger the edge and process it with an expander, ruin.
4. Jump the pipe on the fitting fitting.

Now you can go to the next node!

And some more subtleties

• Before use, you should turn the pipe bay and leave for a day at room temperature if the material was stored at temperatures below 0 ° C.
• Crop the pipe should be careful not to flatten a rather soft edge. First, slightly supervise the pipe, then turning the scissors, finish a smooth slice.
• At entering the apartment you can expect a surprise in the form of a metal pipe-rising. There is a special adapter for connecting a metal pipe with metal-plastic wiring.
• For wiring under 90 °, you do not need to use angular fittings, the pipes from metalplastic begins perfectly. To avoid unnecessary inflection of pipes, use a special spring.

• To fix metal-plastic pipes on the walls, use special clips, selecting them in accordance with the diameter of the pipe.

• For high-quality wiring, first make marking on the clips on the wall and attach them with the help of a screwdriver and self-tapping screws. And then insert a pipe into the clips into the clips.
• Choosing a fitting, pay attention to the state of cutting. Plots with torn thread should be no more than 10% of the total thread. Thread also should not have sizards.