About "cut - not cut". This is not the point. The fact is that a person does not have a welder, which means for sure there is nothing to cut pipe threads with. If only with a clutch or locknut
How to connect plastic pipes without soldering - Only do-it-yourself repairs in an apartment: photos, videos, instructions
Replacing modern heating systems and repairing water supply lines, based on plastic pipes, is problematic to carry out without the use of soldering. And therefore, the question of how to solder plastic pipes in order to connect them into a single system is relevant for many owners who decide to do the work on their own without involving masters.
Plastic pipes are an indispensable element both in construction and repair. They are easy to install, chemically resistant and able to withstand operating pressures up to 2 bar at temperatures up to 95 ° C.
But it is impossible to carry out a high-quality installation of the system and correctly solder plastic pipes without the use of special equipment.
Due to the ease of installation and environmental friendliness of the material, plastic pipes are widely used in water supply and heating of residential buildings.
In addition to pipes and fittings of the correct size, for the production of welding you will need:
soldering iron with nozzles;
building level;
roulette;
scissors for cutting pipes;
rags made of dense fabrics.
The soldering iron is supplied with nozzles of different diameters with a non-stick Teflon coating. When heated, they melt the outer surface of the pipe ends and the inner side of the connecting elements.
Advice: in order to save time in the process of replacing nozzles, it is better to choose a device with the ability to install two or three heating sleeves at the same time.
For domestic use, in order to solder plastic pipes with a diameter of 16-63 mm, a unit with a capacity of up to 1200 kW is quite suitable
When planning to solder plastic pipes yourself, you should adhere to a number of basic recommendations:
The soldering iron is placed on the soleplate and fixed with legs on a flat surface. The nozzles of the required diameter are pushed closer to the edge.
They start working with the unit only after it has completely warmed up, which occurs 10 minutes after switching on. The readiness of the device will be indicated by an indicator on the case.
The parts to be joined are heated in parallel. Welding work can only be carried out under the condition that the ambient temperature is above 0 ° C.
The remains of plastic from the heated sleeves are removed immediately after each stage of soldering, using cuts of dense fabric for this purpose. Do not clean the cooled tips as this can damage the Teflon coating and cause damage to the device.
Overheating can be avoided by connecting the plastic pipes with a soldering iron to the regulator.
During operation, it is important not to exceed the heating temperature of the sleeve, the upper limit of which is 260 ° C. With insufficient heating, the plastic will not acquire viscous plasticity, which will cause an unreliable connection. And at an elevated temperature of 270 ° C, the material loses its stability and sticks, not allowing the pipe to fit tightly into the fitting.
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Advice: when working with a unit that does not have an electronic temperature control function that can control heating with an accuracy of one degree, a special thermometer can be used to measure it.
The work on joining plastic elements by soldering includes a number of main stages. Having no experience in soldering plastic pipes, it is advisable to make two or three test connections in advance.To control the correctness of welding, it is advisable to cut the cooled sample along the axis, making sure that the joints are solid.
When preparing the connecting elements, it should be borne in mind that the inner diameter of the fitting should be slightly less than the outer diameter of the pipe to be aligned with it.
Using a cutter or scissors, pipes are cut to the required length, maintaining the angle of inclination of the cuts within 35-45 °. If necessary, solder metal-plastic pipes, the cut ends must be cleaned with a shaver.
Sections and working parts of the surface are degreased with soap or alcohol solution. Along the edge of the slices, markers are applied with a marker, which will act as a guide when the elements are joined.
Heating the soldering iron with a nozzle to the required temperature, insert the end of the pipe onto the sleeve to the full depth of welding, and thread the socket of the fitting onto the mandrel. The soldering operation is very fast and lasts no more than 10 seconds. The timing starts from the moment the ends are inserted.
The holding time and temperature at which plastic pipes are to be soldered are determined according to the table
If it is necessary to solder a reinforced-plastic pipe with a connecting element, a fitting is first put on the heating sleeve, which takes more time to warm up the inner walls. A tight fit of the fitting on the sleeve is a prerequisite for high-quality heating.
Any twists and turns should be avoided while heating the plastic elements. The maximum allowable angle of rotation should not exceed 10 ° C.
Tip: For safety reasons, it is better to solder plastic pipes with protective goggles and gloves.
The melted ends of the heated elements are removed from the soldering iron and connected to each other, focusing on the risks applied by the marker. When connecting parts, no axial rotations to the full depth of the socket of the fitting are allowed. Mechanical loads.
The process of how to solder plastic pipes is clearly presented in the video clip:
When the plastic pipes are properly sealed, a continuous bead is formed at the edge of the bell, which looks like a small ring.
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When combining parts, special attention is paid to the correct position of the taps and tees. In the assembled structure, the crane handle should be easily rotated to any position.
The connected parts are left to cool completely, preventing them from scrolling. If the connecting seam turns out to be of poor quality, the knot is cut off and the operation is repeated.
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For high-quality bonding, it is advisable to solder polypropylene pipes only with a special soldering iron. But if it does not exist, not everyone has it, then the pipes are connected together with other materials and tools, for example, a gas burner. This method is suitable for brazing large diameter pipes. Measure and cut off the required pipe section, be sure to add
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2-2.5 centimeters. Heat the pipe and the fitting with a burner at the same time. Connect them and hold a little, wait until they cool down.
Polypropylene is a difficult-to-stick material and for joining polypropylene pipes you need to choose a very high-quality adhesive designed for this material.
Prepares a pipe section and a fitting for it. To reliably glue polypropylene pipes, it is necessary to clean and degrease the surfaces. Then apply the glue in a thin even layer on the pipes and connect the parts with a fitting, withstand the time according to the instructions, at least 2-3 minutes. Do not use the pipes for several hours until they have fully set.
the system chose this answer as the best
Pipes intended for a soldering iron are of high quality (I would like to emphasize the word “high quality”), they cannot be glued.
I need to get this glue
(works with any PVC) and this is a shaver,
plus a surface degreaser (any).
In terms of money, it will turn out to be several times more expensive than renting a soldering iron, or paying the foreman to lengthen the pipe you are writing about (the foreman will come with his soldering iron).
We clean the pipe with a shaver (practice somewhere on a piece of pipe, adjust the shaver knife to remove a small layer).
We have to clean the pipe because the pipe diameter is larger than the diameter of the fittings (with the total diameter of both pipes and fittings).
After we have cleaned it up, we work on the cleaning with fine sandpaper.
We try to bring the pipe into the fitting, the entry should be tight.
Now we remove dust, degrease, dry.
Next, we apply glue to the pipe that is cleaned.
We insert the pipe into the fitting and hold it for a while (30 seconds).
Remove excess glue immediately.
In the end, I would like to give advice:
After we did not correctly connect the pipes under heating with a soldering iron, glue, be sure to attach a sticker above the peephole of the entrance door with the inscription “turn off the main taps”.
And overlap every time you leave the house.
We did our best in this case, but the adhesive connection is not very reliable, I would not dare to do this even for myself, and even more so for the customer.
This is a common "stickiness", not a technology, I strongly recommend finding a person with a soldering iron.
Soldering polypropylene pipes is an operation that sometimes has to be done in your own home with your own hands. It is not at all advisable to buy a welding machine specially for this. Therefore, many are trying to find such instructions, such methods that would save them from expensive acquisition. Today we intend to offer a method that is quite applicable at home and does not require any special equipment at all.
You can get the most information about polypropylene pipes and methods of welding them from our article completely devoted to this topic.
We are talking about such pipes that are most often used for wiring inside the house, i.e. about pipes with a diameter of 20 mm. Let's say we need to weld a pipe and an adjacent corner fitting.
Soldering of pipes made of propylene of this diameter can be easily done if there is some kind of safe source of fire at hand, which, for example, such a miniature gas burner can be.
According to the existing regulations and to ensure the required quality of the connection, the pipe must go into the fitting by 14 mm. In order not to violate this standard, it is advisable to measure this distance from the edge of the pipe in advance and put a mark with a pencil.
Having done this, you can proceed to deep heating of the elements to be soldered. The fitting, of course, must be warmed up from the inside.
The pipe end is heated from the outside.
When both parts are well warmed up, they can be inserted into each other.
When inserting the pipe, you should be guided by the previously applied pencil mark, which should be exactly along the edge of the fitting.
After that, the connection made should be cooled without exposing it to any external influences. The cooled joint will be very strong and in no way inferior in strength to those joints that are usually made using special welding machines, which we have already talked about. This can be verified by cutting the newly made solder joint.
As you can see in the above photo, the junction of the pipe and the fitting is completely monolithic, and such a pipe can be safely included in the home water supply system.
So, if you need to solder polypropylene pipes, you can easily do this work on your own, without purchasing any special tools for this. To do this, you just need to take note of the recommendation we have given.
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A soldering iron is undoubtedly an important tool in everyday life, but not everyone in the house has one. Therefore, in many situations we have to come up with various ways to replace it. Fortunately, our contemporaries did everything for us, and now we can use some tricks.
The question of soldering polypropylene pipes today is acute for every owner of his apartment, because everyone, without exception, wants high-quality fastening of pipes, since this directly depends on:
service life of the water supply or heating system,
the need for repair costs.
Therefore, many are interested in how to properly solder pipes in order to avoid trouble in the future.
For soldering polypropylene pipes, of course, a special soldering iron is required. But what if there is no such tool in the house? The answer is simple: use the materials and tools at hand. For example, a gas burner.
Undoubtedly, every home should have a gas burner. But if it is not there, when choosing this tool, you should take into account its main parameters:
gas used;
connection of the cylinder.
This brazing method is suitable not only for small diameter pipes, but also for large diameter pipes.
Using a gas burner, you can independently repair or install the heating system in a short period of time.
accuracy,
care,
striving for quality,
preparation for the main work.
Let's consider step by step how to properly solder pipes:
Step 1. We select pipes of a suitable diameter. Please note: the newly purchased pipes must match the old ones in diameter. This will help avoid connection problems.
Step 2. Having measured, cut off the required pipe section. Do not forget to add an additional 25 millimeters, which will subsequently remain fused into the fitting.
Step 3. Heat up the pipe and fitting with a burner. This must be done at the same time.
Step 4. After that, the parts need to be connected and held a little, waiting for them to cool.
Please note: Before installing the pipes, it is necessary to draw up a detailed diagram according to which they will be connected.It should be noted the installation locations of slewing angles, tees and cranes.
Consider tips and tricks that will help you do the job efficiently:
It is recommended to purchase fittings and pipes from a predominantly single manufacturer. This is an important point, since each manufacturer has its own technology for manufacturing these elements. This means that the melting temperature of the parts may differ, which is not suitable for the solidity of the structure.
Before the main work, the parts must be cleaned and degreased, which will avoid disturbing the quality of the connection.
Practice on the pipe sections first so that you know how much effort is required to get the expected result. Please note: the pipe inserted into the fitting must not be turned under any circumstances, this will break the strength of the connection, since the surfaces of the parts will gather in waves.
If you choose quality, don't skimp! Good products will last longer than you will save in the future.
If the room temperature is below + 5 ° C, there is no need to take risks and start work, because its efficiency is significantly reduced. The joints in this case will be fragile, and the connecting parts will require additional heating. And this is fraught with unnecessary melting and deformation of elements.
Surely many have come across the fact that you need to fasten two wires, but there is no soldering iron at hand. It remains to rely on the ingenuity of contemporaries who offer easy soldering methods that everyone can master.
The following materials are offered on the modern market:
Solder paste is a mechanical mixture of flux, solder powder and lubricant, that is, a binder.
Manufacturers of solder pastes practice their manufacture on the basis of silver, which makes it possible to use this mixture for soldering various types of nickel, steel, as well as copper alloys.
exfoliate very quickly, but not oxidize;
be viscous (which is very important!) and maintain deformation;
have adhesive properties;
washed off in common solvents;
do not drain beyond the boundaries of the applied layer;
do not leave indelible residues after application;
do not affect the technical properties of the board.
Step 1. The primary task is to prepare the wires. We clean the surface of the wire using a clerical knife or wire cutters.
Step 3. Carefully spread the soldering area with soldering paste. It is necessary to apply drops of paste over the entire surface of the wire evenly.
Step 4. Warm up the place of application. To do this, you can use a regular lighter. After warming up, the paste will form a strong seal.
Step 5. We put a heat-shrinkable tube on the wire, which we also process with a flame, so that it is evenly distributed over the surface of the wire.
Please note: This soldering method is primarily suitable for bonding small diameter wires, such as headphone wires.
Surprisingly, solder pastes are applicable in water supply. There are special requirements for such substances:
Silver or copper is added to the composition of the solder, and this increases the melting point. This makes the alloy mechanically strong and durable.
The flux or solder is not allowed to contain toxic substances, therefore they do not contain lead or any toxic metals.
The flux must be easily washed off with water and should never be corrosive.
Solder tape is a material used in electrical wiring installation, repair or replacement, in domestic and field conditions, as well as in the automotive industry.
Step 1.It is necessary to remove the insulation from the wire, that is, to strip it with wire cutters.
Step 2 Twist the wires, and then wrap the twist with solder tape. After removing the protective film, the side with the flux is applied to the surface of the wire and crimped.
Step 3.Heat the winding place with a match or a lighter until the solder completely spreads over the surface of the wiring.
Step 4. Wait until it cools down, and then remove excess flux.
Video (click to play).
As you can see, it is not at all necessary to run to buy a soldering iron to solder the wires, you can use the methods described above. This will save both time and money.
