In 1957, the method of using the vinyl polymerization in 1957 polypropylene pipes. Because of the excellent technical characteristics and low cost, they displaced the classic metal pipelines from many household and production buildings. Of these, systems of cold and hot water supply, heating, heating are collected. The only complexity is only soldering polypropylene pipes necessary for their compound.

Property polypropylene

Polypropylene is a colorless material obtained by the polymerization of the propylene monomer with the addition of catalysts. It is characterized by chemical resistance to the effects of various inorganic solutions of hydrochloric, acid or alkaline type. The material does not absorb liquid and has dielectric properties.

The temperature of its melting is about 170 degrees Celsius, and a hardness of about 55 MPa. It withstands the effect of cold to -15 degrees without changing its properties, however, with the values \u200b\u200bbelow this temperature becomes fragile.

Thanks to its characteristics, polypropylene found wide application As a material for the manufacture of water pipes. The polymer used for their manufacture does not harm the environment and does not need special disposal. His fine adhesion with metal allows you to produce various kinds of fittings by sprinkling with brass nickel-plated inserts having threads.

When heated over 160 degrees, polymer material softens and acquires drift. And when cooled, returns its hardness. This property is used when connecting different parts Pipeline made of plastic. To perform a delicate connection, a soldering iron (iron) is used. At the same time, to take advantage of the soldering iron for polypropylene pipes, you will not need special knowledge.

Polypropylene

Types of pipes

According to polypropylene tubes (PPR), both cold and hot water can be transmitted. Depending on the requirements for water supply, one-piece or reinforced designs are used. Reinforcement reduces temperature expansions.

It can be done in the following ways:

• aluminum coating outside pipes;
• by adding an aluminum mesh in the middle of the structure;
• amplification using fiberglass;
• fusion composite material with fiberoloks.

Depending on the type of reinforcement, the instruction on the soldering of polypropylene pipes changes slightly.

To greater extent, it concerns devices using aluminum. Plastic pipes are marked with Latin letters PN and the number after them. These figures are denoted the greatest pressurewhich can withstand the design collected from them. So, PN 20 denotes that the pressure in the middle of the water conduit can reach 2 MPa.

The technical characteristics of the types of PPR and the features of their compound for visibility are convenient to be reduced to the table:

Thus, the scope of polypropylene hydroflubles is extensive. And their resistance to corrosion and external influences, mechanical hardness, durability, simplicity of installation and low price make them popular. Much contributes to the simplicity of the connection of the structural parts, providing a reliable indefinite compound. For comparison, the installation of the entire system takes five to six times less time than from the metal.

Polypropylene pipes. Vida pipes, and their difference

Soldering tool features

In order to discharge pipes from polypropylene, it is not necessary to invite a professional, all operations can be performed independently. But it is worth noting that it is more convenient to work together. The tool used for the connection is called a soldering iron or iron. Classify it in two signs: design design and power.

Despite the structural differences and many trademarks, the principle of operation of devices is the same. Like an ordinary iron, they have two main elements: Heater and thermostat. In addition, the obligatory attribute of the soldering are nozzles. They are considered consumable material And sold both with a soldering iron, and separately in retail. Nozzles made from heat-conducting material covered with a Teflon layer on top. The nozzle of two elements is: one with a deepening, and the second with a collar. With their help and the heating of the inner and outer surface of the pipe and fitting occurs.

The thermoelement is located in the middle of the housing to which the nozzles are screwed. For uniform heating and convenience, their location relative to each other coaxially. When the device is turned on to the network, 220 volts, the thermoelement is heated by transmitting its heat to the body of the soldering iron. And he, in turn heats the nozzles. Using the thermostat, the required heating temperature is set and supported.

As soon as the thermal sensor fixes the desired temperature, the thermorel is triggered, and the voltage supply to the heater stops. When the temperature is reduced by two or three degrees, the heater is connected to the network again.

Technique compound

In order to properly connect the polypropylene tube, buying the soldering iron will not be enough. As in any case, experience is needed, therefore professionals recommend beginners first work on samples, and after already move to the welding of the main design.

Before starting work conduct a number of preparatory operations. This applies both to the parts connected and the solder device. The principle of welding is based on the melting of two parts, followed by their physical docking to each other until the crystallization. In order for the welding seam to be reliable, one of the welded parts is inserted into another to a depth of 13 to 32 millimeters, depending on the diameter of the parts. Welding of two pipes occurs through the fitting. They are of different types and sizes. Each fitting is designed for a certain pipe diameter, so when soldering should be attentive.

In the case of using a reinforced pipe with an aluminum foil, the insert end to the nozzle must be cleaned of its layer. Cleaning occurs mechanically using a special tool. But since this device is quite expensive, often use hackstone. They cut the pipe in a circle to the depth of the arming layer, and then cut off with a knife. This approach requires skill and experience.

Details before welding should be cut to the required length, clean from dirt and degrease. To do this, it is allowed to use isopropyl, isobutyl or ethyl alcohol. The use of acetone, white spirit, gasoline or vodka is not allowed due to the loosening of polypropylene after their impact.

The bushings before work should also be cleaned with a veosh. The attention of the integrity of the Teflon layer should be given, it is impossible to use nozzles with damaged coating. Therefore, clean metal objects Or abrasives is prohibited. In the case of a strong prigar, wooden scrapers are used. For ease of cleaning, nozzles are recommended to be pre-severely heated with a soldering iron.

At the last stage of preparation over the entire diameter of the pipe, a line indicates the depth of the weldable zone. This size must correspond to the depth of the fitting. Then you can already begin directly to welding.

How to solder polypropylene pipes

Welding process

After all preparatory operations Completed, you can go to the soldering. To do this, it will be necessary to screw the nozzles of the required diameter with a screwdriver to the solder. Which side is the external part or inner, the values \u200b\u200bdoes not have, most importantly, to withstand their own significance.

The iron for soldering of polypropylene pipes is installed on a flat surface, turned on and heated for 10 to 15 minutes. In order to connect correctly, you can use the following instruction By soldering pipes from polypropylene:

1. 1. A table with data is studied from which the required time of duration of various technological processes is taken:
   
2. 2. Using the thermostat, the required temperature is set. This value is at least 260 ° C and more depends on the diameter of the parts.
3. 3. Welded details are simultaneously put on preheated nozzles. The pipe is introduced into the groove of the inside to the line marked on it, and the fitting is put on Dorn.
4. 4. After a certain time, in accordance with the table given, the parts are removed from the nozzles and the smooth movement are introduced into each other to the specified depth. By connecting the elements, they cannot be wrapped or curled. They should be kept motionless until the moment of frozen. When connecting the excess molten substance is squeezed out, forming a ring around the seam.
5. 5. As soon as the seams freeze, the resulting item can be released, and at the end of the cooling time to operate.

Commissible Mounting Errors can be divided into several types:

1. 1. It is not sufficiently thoroughly performed cleaning the surfaces of soldered parts.
2. 2. Increased water in the weld.
3. 3. When trimming the pipe to the required length, the cut angle exceeds 90 degrees.
4. 4. Insufficient tube input length in fitting.
5. 5. Overheating or insufficient heating of welded parts.
6. 6. Incomplete removal of the reinforcing layer.
7. 7. Non-compliance with the correctness of the docking of parts and actions related to the subsequent attempt to adjust them.

Tricks Montaja

Professionals achieve the high quality of the soldered seams by impeccable compliance with the rules of welding. To do this, they use small tricks. First of all, when docked, it is important to withstand awareness. Make it is not difficult. The secret of the smooth axis is to apply a parallel line with a thin marker or pencil both on the surface of the pipe and fitting. After melting, you will need only carefully combine these lines.

For fixing the soldering iron in its design used weighted leg. But due to the poor quality of the nozzles or insufficient heating, the pulling of the molten elements of the pipeline can lead to turning the device. Therefore, it is recommended to carry out welding with an assistant, in whose tasks will be held to hold the soldering iron stationary.

In order for the slice to be smooth special scissors are used. With their help, the plastic tube cuts exactly and without the application effort. If the cut turned out to be uneven, it is allowed to align it with a file. At the same time, at the end of the alignment, the pipe should be purned and if necessary, remove the chamfer.

When choosing nozzles, preference should be given to those manufactured from metallized teflon. They differ in uniform warming up and easily cleaned. For household needs, a device with a power of 1.2 kW is suitable. It will be enough for welding pipes with a diameter of up to 50 mm.

Thus, it will not need any special knowledge for soldering pipes, the main thing is to comply with the soldering process and follow the recommendations. At the same time, since the temperature of the soldering iron reaches high values, it is worth complying with security techniques to prevent the ability to burn.

Polymer products are used in many spheres. Plastic cup, laundry basket, heating radiators - all manufactured based on polymers.

Universal is considered polypropylene.Pipes from this material are used for mounting the pipeline, a warm-alone system, ventilation in the house. Installation technology does not require special skills. It is possible to disassemble the polypropylene pipes, it is possible for half an hour.

Features

Polypropylene is a synthetic polymer with high physical and mechanical properties. It is simultaneously durable, flexible and resistant to negative impacts. He is not afraid of blows, temperature differences, chemistry. With such characteristics it is difficult to believe that the closest relative of polypropylene is polyethylene.

The material is obtained by the polymerization method of propylene.In order for it to have strength characteristics, catalysts are added to the raw materials. Product chemical reaction Substances - white powder or colored granules.

Granulated or powder polypropylene comes into production, which takes place in six stages:

• Extrusion.First of all, the raw materials fall into the extruder. Inside this device, the granules soften and become plastic mass. In order to turn the solid raw materials into the hard mass, it is heated to 250 ° C. For white pipes, raw materials are used in pure form. If color products are needed, dyes of the desired shade are added to the extruder. Pigment additive does not affect product quality.
• Forming.In the next step, the mass is profiled. The extruder "squeezes" pipe blanks. According to the standard, the diameter of the pipe is 16, 20, 25, 30, 40, 50, 62, 75, 90, 110 mm for work in the house. For underground work (commissioning of communications) use products big diameter - up to 120 cm.

• Hardening. Hot blanks cooled cold water. For this, the products are immersed in the cooling bath.
• Application of the protective layer. The solidified pipes are passed through the equipment that "wraps" the product into a thin layer of protective film. This follicate film. It helps keep materials suitable for use after long storage. Before mounting the film you need to remove.
• Marking.Foil is applied to the foil. According to it, it is possible to immediately determine how one or another type of pipes is intended for.
• Slicing. This is the last production stage. Sliced \u200b\u200bproducts enroll in a warehouse for packing and storage.

Small and curly details from the same raw material (for example, fittings for pipes) are produced in a similar way. After the extruder, the liquid mass is supplied to the mold, where complex parts are cast. Slicing they do not need. Small fragments are made immediately individually.

The production of reinforced pipes is somewhat more complicated. It implies an intermediate or outer layer from more durable materials. This layer is necessary in order to reduce the stretching while increasing temperatures.

Since polypropylene is close to polyethylene - drawn and plastic substance - it also has a property to increase and decrease in size when changing the temperature. With low material is compressed, it is stretched with high.

The stretching coefficient in polypropylene materials is essential.Thus, a pipe with a length of 10 m at a temperature of 95-100 ° C can stretch by 150 mm. it great value For engineering communications, which use the details from propylene.

Stretching is dangerous in that the pipe ceases to be so durable as before the temperature change. Therefore, it needs to be prevented in all systems, where the maximum heat heating temperature exceeds 90 ° C.

The scope of polypropylene pipes is determined by their thickness: than they are thicker, the stronger. The stronger - the largest mechanical and physical exertion they will withstand. The "rustier" pipe in operation, the wider the use range.

Manufacturers produce products of two types: thin-walled and thick-walled.

Thin-walled pipes with marking PN10 and PN16 are considered thin-walled.PN10 withstand the temperature differences up to 45 ° C and pressure no more than 10 atm. Wall thickness - 0.9-1 mm. The scope of their application is strongly limited by technical specifications, so they are the cheapest. It is necessary to use them away from high temperatures.

PN16 withstands heating to 60 ° C and pressure up to 16 atm. The walls are much thicker - 15 mm. At the same time, U. this type The pipes have a distinctive feature that makes it difficult to use the material in many areas. This is a large tensile at temperatures above 60 ° C. Practically in all heating systems, where pipes are often used, the temperature is higher than this value.

Tolstoyed belongs to all brands, starting with PN20. This is already a serious equipment with thick durable walls to 21 mm. It is universally for any type of work.

Tolstown pipes are reinforced and unarmed.

The reinforcing layer is located inside the pipe, between the layers of propylene or outside the product, like a shell. It protects the polymer products from stretching at high temperatures.

Made from different materials:

• fiberglass;
• foil;
• polyethylene;
• aluminum.

Pipes without reinforcement and with the reinforcing layer of fiberglass are the simplest in the installation. They melted well and connect with fittings without obstacles. The connection is reliable.

Pipes with aluminum and foil harder in work. If aluminum is outside the polypropylene layer, it must be cleaned with the entire width of the connecting node. Without stripping, the soldering is impossible. Due to aluminum protection, it will not be possible to melt propylene, and therefore there will be no qualitative connection.

Clean the pipe is needed by a special tool for pipes with aluminum reinforcement. This process is long and time-consuming, especially with the large diameter of the product.

If the aluminum layer is located inside the propylene tube, it is even more complicated to clean it. But it is necessary. When installing the inner and outer layers of propylene should fuse with each other and "secure" aluminum so that water does not fall on it.

Aluminum does not rust, but when water gets through the layers, the pipe can burst.

Combined products and pipes with an aluminum plate inside the product are the most complex in the installation, but not the most efficient.

Pros and cons

The merits of the material quite a lot:

• Relatively a light weight. Polypropylene pipes weigh 9 times less than metal. It is easier to transport and mount.
• The price of one pipe is 4 m - within 30-110 rubles.
• Installation does not require professional skills. It is worth reading on spare parts, but it will not take much time.
• Reliable and hermetic connection of pipeline parts and any other design. It provides soldering. The locations of the joints are protected from water and leaks and are also durable as the pipe itself.
• The material is to be processed. You can make straight and oblique cuts, cut them into fragments from 1 cm wide to any desired length. It is convenient when the pipes have to be mounted in hard to reach places.

• The material matches the GOST requirements. Production use materials that can be in contact with drinking water.
• Specifications satisfy the requirements of SNiP for the installation of pipes in different operating conditions. Suppose installation indoors and outside (under the ground).
• Polypropylene does not rust. There are no materials that are subject to corrosive processes.
• Products do not need to paint. They already have a white or different color and half-one. The dye is added to the raw material at the first stage of production, so the pigment is securely fixed. After 10 years, the service product will have the same color.

• For each task - its solution. If you need to spend cold water, there are PN10, for boiling water - PN25.
• Water in the pipes flows silently. Silence provides the thickness and density of the material.
• Inside the pipe does not appear from DC water.
• Service life - up to 50 years.
• Required use. From the remains of pipes you can make useful and beautiful things for home and life.

But there are still flaws:

• Pipes are susceptible to high temperatures. Even reinforced.
• Products can not bend. To change the direction of the pipe (rotation by angle, down and further), you need to use fittings.
• Special tools are needed for soldering.
• On the surface of the pipes there may be scratches from mechanical damage. It does not harm integrity, but the appearance will suffer.
• Reinforced pipes require preparation before soldering. Only products with fiberglass can be soldered immediately, and aluminum and foil must be cleaned.

Where to apply?

Polypropylene pipes are a multifunctional thing in the farm.

That's what you can do from them:

• Water pipe system. For cold water supply, unarmed thin-walled or thick-walled pipe is suitable. It costs it easily, easily mounted, perfectly copes with water transportation temperature up to 45 degrees.
• Hot water supply system. On pipes with labeling NP20 or NP25, it is safe to feed the water of boiling point. Propylene begins to melt only at 170 degrees.

• The system of centralized heating in the cottage, house or in the country. To do this, select the pipes of a large diameter with fiberglass. They are reliable and do not require complex stripping. Soldering such pipes goes with a bang. The heat-conducting lengthening of pipes with fiberglass is 10 times less than without it - only 1.5 cm. At the expense of this pipe does not sag and not deform.
• Water warm floor. If heat from pipelines with hot water Not enough, mounted a coolest floor system. The minus of such a floor is that it is impossible to turn the pipe with a small step. Plus - in the efficiency of system maintenance and its service life. The service life of the water warm floor is about 50 years. At the same time, the system can be mounted directly into the floor screed.

• Auxiliary systems: ventilation and sewer.
• Fence at the cottage. From the unborn guests will not protect, but it can distinguish the territory with neighbors. On guarded country sites, this is one of the simple and budget options.
• Greenhouse or greenhouse. Pipes are strong and well tolerate snow load in winter. It is convenient to collect simple greenhouse 1.5-2 m high.
• Multi-tiered flower leaf for garden plants.
• Gazebo and garden furniture. Chairs, woodcuts, awnings, portable tables, lounge chairs.

• Houseware. From trimming pipes, you can make useful things for an entrance hall, balcony, garage, workshop, children's room. With the help of tees, couplings and fragments of the pipe is going to any object of geometric shape - shelf for shoes, a stand for flowers, a clothes hanger, a dryer or a trash can. All that is enough fantasies and remnants of the material. Convenient to collect for young children playgrounds, swing, houses. If you add a grid, you will get a great gate for children's football.
• Decor elements. Using corners and adapters, you can collect book regiment in loft-style. Short trimming of different diameters will go to create a frame for a photo or mirror, lamps, flower Gorshkov and VAZ.

What will required?

When working with polypropylene pipes, you will need several groups of instruments.

The first group is necessary for measurements. It includes roulette, ruler, markers, building levels. IN complex cases We'll have to resort to mathematical calculations. For example, when using propylene pipes for water supply from a source outside to the house.

In addition to drawing I. measuring instrumentsMake alcohol and trimming cotton fabric. They are needed for degreasing the surface of the pipes. A markup will be better on the degreasing surface and it is more convenient for soldering.

The second instrument group is needed for cutting. The length of one pipe on average is 4 meters. It is necessary to cut short fragments from it, configuring them under the size of the site where the pipes will be installed.

Cut the pipe with infirred materials is not recommended. It is long, inconvenient, and the cut is obtained by poor quality. His edge "grinds", it turns out with burrs. It must be cleaned with sandpaper or cut off with a thin knife.

Tools for a single cut (can be used to cut off 1-2 fragments when others did not turn out on hand):

• hoven for metal;
• electrolovik;
• pila Bulgarian;
• self-folding knife.

Propylene is soft, so such tools will cope with the task. If you have to use them in the absence of others, it is important to take into account that the cut will be uneven, and chips will get inside the pipe. This chips need to be removed so that it is "walked" along the water supply or a heat-mall system.

Electrical devices (Lobzik, saw) require accuracy in work. It is necessary to control the strength with which pressure occurs on the pipe and turn the pipe during cutting several times. It helps to make a slice straight, not at an angle.

The listed tools should be used correctly - do not cut, but try to fix the product on the spot and press the tool from above. In this case, the cut will be as close as possible to the ideal and chips will get less. But this method is suitable only for thin-walled and small in the diameter of pipes. With reinforced products will have to tinker.

Tools for high-quality cutting Pipes:

• special scissors for plastic pipes, including propylene;
• roller pipe;
• electric pipe cutting;
• guillotine type pipeline.

Scissors for pipes are quite unlike ordinary.The sharp blade is fixed only on the one hand. There is a wide metal base on the second place. Inside the base there is a groove. In this groove when cutting out plastic products, the sharp edge of the blade is included. The edge of the pipe is obtained smooth and fit for installation.

To work with such scissors, only muscular power is needed. To cut the pipe, you need to close the handles of scissors so that the blade passed through the plastic.

Plus, these scissors are that they are light, cheap, easily move from place to place. The minus is that the distance between the blade and the base cannot be increased. It is only thin pipes (up to 45mm).

Products of large diameter (for sewage, heating) cut manually.

Also, some masters consider the disadvantage that the effectiveness of the tool is directly related to physical effort.

Roller pipeline, on the contrary, is more oriented to work with large diameters. Externally, it looks like a clamp. The cutting blade is located on the end side of the clamp.

It is even easier to present this tool if you remember the manual machine to rush the cans. The device is installed on the pipe and is delayed with a bolt. It is important not to drag so that the product does not go cracked. After that, you need to take up the blade handle and turn it clockwise. It turns out a circular slice with a smooth edge.

The advantage of the tool - in convenient use and qualitative result. In size and weight, he is more scissors. According to the principle of action, it is also associated with physical effort.

Electric (or rechargeable) pipe cutter runs from the electric motor.It is as quickly and without extra effort Changes with the task. However, the diameter of the product is also limited, like manual scissors.

Guillotine type pipe cutting refers to manual tools. Its design is fundamentally different from scissors and pipe cutters, and the capabilities are somewhat more. They can cut pipes with a diameter of 5-35 cm. At the same time clamping the pipes do not need to clamp. The cut is cleared without the risk of plastic cracking.

The third group of tools will come in handy for sweeping pipes.

It includes only two tools, but they are very important:

• fatheck seater;
• calibrator.

Purpose of the Fatheck - remove the edge and upper layer Plastic around cutting pipe. This improves the quality of the soldering.

Favorifiers differ in diameter.They are also mechanical and automatic. The tool is not universal, therefore, it is important not to guess the characteristics.

The calibrator is needed for processing reinforced pipes. With it, remove an aluminum layer or foil. It is also capable of eliminating burrs and irregularities on the cut. Some calibrators can execute the functions of the fake.

The useful function of the calibrator is to return the cut perfectly round shape if the pipe is slightly frozen during the cutting process.

The main disadvantage of these tools is that for each diameter, you need your calibrator and a chammeter.

The fourth instrument group is needed for, actually soldering.Welding or soldering pipes is carried out by a soldering iron with replaceable nozzles. Working with this unit requires caution and compliance with security measures.

Since the soldering iron heats up to a large temperature, there is a risk of getting burns when working with it. In the list of purchases for soldering in the first place must be good dense gloves, preferably with heat-resistant coating.

In the set of the soldering iron should be replaceable nozzles For pipes of different diameters. You can change the nozzle with the hex key.

On the side or above the case is a toggle switch for temperature adjustment. To any solder attached instructions with detailed description Tools and all manipulations that can be produced with it.

Instruction

In general terms, for professional, the pipe welding looks simple: heated, connected, fixed. The keyword here is for a professional. For novice specialists and simply home owners, the procedure consists of more steps. And they are more complicated.

There are two methods for welding - jack and in a fool.

When the two parts of the pipe are joined, do not apply additional parts. The smaller diameter tube is inserted into a large-diameter product. It's simple but not the most effective method. Thus it is difficult to connect the pipe rental, if it does not go only in a straight line.

Method in fallen is much more reliable. It implies the connection of parts using the fittings of various configurations. With the help of fittings, you can easily change the direction of the pipeline, make branching and complex water supply systems.

In both cases, welding or soldering is a docking of two heated parts. Due to the fact that the parts from two ends are soft and militia for deformation, diffusion occurs (mutual penetration of materials). A strong connection is formed. In terms of its characteristics, the pipeline at the connection site does not differ from the characteristics of the factory product from propylene.

Soldering models for PP pipes a lot, but their structure is the same:

• Case. It has a steady lower part, stand and handle.
• Heating element. The maximum heating temperature is 260 degrees. From above there is a protective casing.
• Temperature regulator. May be mechanical or electronic. There are light indicators.

• Set of different diameter nozzles. Part of the nozzles is designed for pipes, part - for fittings. Nozzles have Teflon coating. It provides uniform heating of polypropylene parts and easy cleaning.

Types of soldering iron differ in the form of the heating element or sting.Two types are popular: "Iron" and "Rod".

The rod soldier appeared earlier. Its sting is a cylinder with a diameter of several centimeters. The cylinder is fixed nozzle. On the one hand, it is adapted to heat the pipe, on the other - for fitting.

The fitting is heated from the inside.He puts on top to the nozzle. Pipe, in turn, heats up outside. It is inserted into the hole of the nozzle.

In the process of working on the temperature effects, the attachment on the rod can "be broken". They have to twisted, so the rod soldier is less convenient than in the form of an iron.

The sting-iron is a vertical plate with three holes for installing nozzles. The thickness of the plate varies within a few centimeters. Its "nose" is pointed, and in general, the plate resembles the sole of the iron, located vertically. Hence the name of this type of sting.

On the one hand, nozzles for pipes are recorded, on the other - for fittings. In the process of soldering, they do not break down, which is much more convenient than the rod.

Also width from the edge of the left nozzle to the edge of the right nozzle is less than on the sodel soldering iron, so it is more convenient for working in hard-to-reach places.

An important role is played by the number of nozzles with different diameters and the quality of their coverage. The more assortment, the more types of pipes can be used in plumbing work.

In standard sets of 3 or 4 nozzles. For household use The soldering iron is enough. But for professional use in sanitary work, you need to buy a few more varieties.

While choosing a soldering iron, you need to consider the power of the tool. Choosing it on the principle "The more powerful, the more effective," is wrong. Such a tool will be only in vain to spend energy, and not to improve the result of the work.

To select a soldering iron for specific needs there is a simple rule. The diameter of the pipes (in millimeters) must be multiplied by 10 W. The resulting number is the required power. When working with different diameter, products and polypropylene need to be focused on the largest.

PP-pipe melting technology does not differ in difficulty. But in your work with them there is a catch: determine the quality of the soldering will not immediately work. All the oversight and leakage can be revealed only during the operation of the pipeline. Therefore, it is important to study the nuances of work in advance and correctly solder the pipeline system.

Detailed instructions for beginners:

• Wipe the soldering iron nozzles with a clean dry napkin.
• Install a soldering iron on a special stand.
• Install the two nozzles of the desired diameter on the stare. Nozzles are not in a row, but one against the other. The pipe weighs more fitting, so the nozzle for it is installed on the part of the working hand. For the right-handers - on the right side, for the left-hander - with the left.
• Connect a soldering iron to a 220 volt network. When connected, it is important to ensure that the heating elements do not touch the cord of the soldering iron.
• Set the welding machine to the maximum temperature - 260 degrees.

• Wear gloves with heat-resistant coating. All manufacturers of soldering machines for PP pipes indicate that in order to comply with security, touch the hot parts of the soldering iron with unprotected parts of the body is prohibited. Also, the soldier should not be access in children and animals.
• Preheat plastic parts. In the process, it is important to monitor the preservation of the corner of the connection.
• Remove hot propylene parts in turn, join each other.
• Cool solder natural way. It is impossible to cool it with water or cold air. From such manipulations, the product will be due to the warranty period.

Manufacturers do not indicate universal heating time for different types of pipes.For thin-walled products of small diameter and thick-widespread temperatures, the temperature and time may differ.

Professional installers determine the degree of heating from experience and with a support for intuition. The table helps the table that each manufacturer is inserted into the instructions. It takes into account the time of operation with the pipe depending on its diameter and the length of the connecting seam.

Tables different manufacturers may differ.

Exact time Determined by the power of the soldering iron and its model.

Installation

Soldering or welding of PP pipes is an integral part of the installation process. It is impossible to first discharge the entire system of the water supply system in one whole, and then unhindered it in a reserved place. Some sites still have to solder weight. Therefore, the soldering and installation go in parallel.

Work is performed in stages.

First stage - organizational

The organization consists of two important events: choosing materials and creating a drawing.

Polypropylene pipes must comply with its technical characteristics of the system in which they will function. If it is a cool water supply system, you can stay on PN16 pipes. For hot, you need a minimum PN20. In addition to the pipes themselves, there will be connective fittings and holders (loops).

Drawing is a pipeline laying scheme.It should reflect all the elements starting from the water source and ending with water consumption. In the scheme, it is important to indicate all sections of the system that will be laid in the ground and indoors, at what depth they will be and for which height increase water. For every 40-50 cm, fasteners should be provided. Also noted the location of adapters, branches, couplings, cranes, radiators.

The water supply is mounted in two ways: open and closed. Open easier for installation with your own hands. A beginner will cope with him. Closed more time-consuming and complex. It is better to entrust to experts.

In addition to the fact that the drawing gives a visual idea of \u200b\u200bthe location of the pipes, it helps to calculate the amount of materials.

Polypropylene - actually wasteless material. But no one is insured against the first work with him, so it is necessary to purchase a material with a small margin. 5-10% will be enough.

From the remaining pipes and fittings you can always make useful trivia for home, so this is not a waste of money.

Second Stage - Preparatory

In order for the installation to be quick and easy, you need to prepare areas on the street and in the room for which the pipeline will be laid.

If part of the pipes need to be mounted in the ground, then the trench is discarded.So that they do not move in winter, it is necessary to make a deepening below the level of freezing. As additional protection, it is recommended to use the insulation. They turn the PP pipes before immersion in the ground.

The optimal option for insulation is the mineral wool or materials on a foil basis.

Inside the house you need to install mounting elements along the pipeline. Their location relative to the horizontal line and each other is determined by building level. Laser device is best suited for this. You also need to break through the hole with a hole in the walls through which the pipeline will be held.

In the preparation process, it is easy to identify hard-to-reach plots for installation. It is important to think in advance how it is better to mount on these areas of the pipe - use the finished parts cooked on the table, or do it on weight.

The soldering iron temperature is the damage to any subject in close proximity. Before assembly, you need to clear the path for which you have to move during installation in order not to accumulate obstacles.

The third stage - the analysis of the plots of pipeline by complexity

At this stage, you need to work on the diagram to get around the entire mounting path and note which elements of the pipeline can be mounted on the desktop, and which will be welded only on weight.

The resulting sites should be noted in the diagram.Some of them may be too short, so they can be combined. Some, on the contrary, may be too long. They need to be equipped with an additional fastening on the wall or divided into several parts so that the pipe does not savage and stretched.

Fourth stage - cutting pipe

Thin-walled products are well cut with scissors for PP materials and pipes. In rare cases, the electrolovka is suitable.

For thick-walled pipes with reinforcement from aluminum and foil before cutting, we need a stripping. A multifunctional carrier or shaver is coping with it.

If there were no special tools and the cut turned out to be uneven, it needs to sand. More efficiently use two types emery paper - First with a larger grain, then fine-grained.

When cutting pipes, it is important to take into account that 15-30 mm of length will go to the connecting seam. They need to be added to the length of the pipe, which is applied to the pipeline scheme. If the connecting parts are on both ends of the pipe, then add 15-30 mm twice.

You can always cut off too much, but it will not be possible to grow missing a few centimeters. In order not to make a mistake, you should not chop up all the elements of the pipeline, including complex areas.

Plots of pipes that will be heated with a soldering iron, you need to mark with a marker.

The end of the pipe should enter the nozzle to the mark.

Fifth Stage - Welding (Spike) parts on the desktop

As mentioned above, in practice, spike pipes consists of more steps than heating and compound.

So that the seams turned out to be reliable, and the system functioned correctly, you need to solder:

• Degrease the attachment of the soldering apparatus, the inner surface of the fittings and the ends of PP pipes. Alcohol can erase the marker markup. If necessary, it can be updated, specifying measurements by line.
• Install a soldering iron on the stand. It should be heat-resistant, and working surface Smooth and stable.
• Wear gloves with heat-resistant coating.
• Fix the nozzles of suitable size.
• Connect the tool to the power grid, adjust the temperature of 260 degrees.

• The fitting is put on the nozzle, and the pipe is inserted into it. Thus heats up inner side The connecting element and the outer part of the pipe. It is important to comply with the recommendations on the heating time (in seconds), which gives the manufacturer. The larger the diameter of the pipe and the thicker of the wall, the more time. Usually after 6-8 seconds you can already solder (connect the parts between yourself).
• Connect preheated parts. Insert the pipe into the fitting, hold a few seconds to start the diffusion process, and then postpone to complete cooling.
• Check connection. You can do this no earlier than 2 hours after welding. You can check the detail on strength mechanically by closing the details with your hands, or skip the water through them. If the pipe does not flow, and the water goes well, the compound managed.
• Swing all the details that can be connected on the table.

Sixth Stage - Pipeline Laying

In fact, this is the installation of all items to the place allotted. To connect some of them, in the process will have to weld the part parts. This is also done step by step, as on the working surface.

Seventh Stage - System Check

A few hours after welding, the parts are set and cooled. The performance and reliability of the system are checked by putting water on pipes.

Typical errors

Newbies in sanitary work and self-taught masters who want to save on professional installers, often make the same errors. At first glance, these are little things, but they lead to the fact that the system quickly fails.

What you should not do when installing PP pipes do it yourself:

• Overly hurry. PP-pipe welding requires some efficiency. But this applies only to the speed of connecting parts while they are still hot. The rest of the hurry has negative consequences. Most often, novice masters simply do not give the soldier to warm up to the desired temperature. As a result, the "clutch" of the details are bad.

  The non-historical installers have another problem - they heat the items to the desired temperature, and then they are listed for a long time before inserting the pipe into the fitting. During these few seconds, the product temperature drops, and with it the quality of diffusion and the quality of diffusion.

• Rely on the temperature indicators of the thermometer built into the soldering iron. If the equipment is old or from an unscrupulous manufacturer, the necessary 260-270 degrees on the display may appear due to failure in operation. The real nozzle temperature is often below this parameter. For insurance, it needs to be checked with a contact thermometer. It is worth such a device inexpensive, and the farm will come in handy not only to work with the soldering iron.
• Overheat propylene products. The beginners may seem that the longer heal, the better the connection will be. In fact, it is not. If plastic melt too much, then in the pipe is formed. It will interfere with the free flow of fluid on the pipeline or it will be bought by a cut of the pipe.

• Welding pipes on the street in cold weather. For low temperatures Details are cooled too quickly as the connecting seam. They do not have time to grasp reliably.
• Do not clean the pipes and nozzles from dust and fat. It also negatively affects the quality of the connection.
• Do not trace pipes with aluminum reign. The temperature and melting time in aluminum and propylene are different. Although aluminum refers to anti-corrosion materials, due to it, the pipes can flow.

• Mount at once all the elements of the pipeline on the floor (desk, land). Such a designer is then impossible to set according to the scheme.
• Use thin-walled pipes for hot pipeline. They will not withstand high temperatures, stretch and burst over time.
• Cut pipes with a hacksaw or an electric lobby without a subsequent stripping of a slice of a sandpaper.
• Trying to speed up the process of cooled pipe with cold water or air.

Not a little mistakes, you need to still take into account the tricks of welding, which have developed from professional installers over the years. Conditionally, they can be divided into "Lifehaki" on the choice of materials and tools, and useful tips for work.

How to choose pipes:

• Take the rule that thin-walled pipes can be used only for cold water and decorative products. To work with hot water it is worth choosing only reinforced top-walled. For ventilation, pipes are needed with PHP marking.
• Products with fiberglass as a reinforcing layer are universal. They are suitable for beginners who only learn to use the soldering iron, and serve up to 50 years. Do not be kept on the stories of consultants about best quality pipes with aluminum.

• Appearance Pipes can also say a lot. If the product has a uniform color, a smooth round cut and smooth walls inside and outside - it is high-quality. If the painting goes with spots, the cut is not round, and the walls are rough - the product will in the process of operation.
• The pipe must be smeared. A characteristic sharp smell of plastic has only low-grade raw tubes. The product from high-quality propylene almost does not smell.
• The pipe should be in the fitting of the tight and only in the hot condition. If there is a gap between the walls at least a millimeter is a marriage.
• All components need to be purchased from one manufacturer.

Tricks welding and mounting is much more.They come with experience, and each masters have their own techniques. But there are several universal councils.

So, each wizard knows that the soldering apparatus nozzles are processed by a special solution in production. He protects the tool from negative influences ambient Before using. The protective layer evaporates when the soldering iron is first turned on with nozzles. When evaporated, a characteristic smell appears and easy smoking. Therefore, you need to start the device for the first time on the street and give it to warm up to full evaporation. Only then proceed to the soldering.

The second secret concerns the processing of pipes and the soldering iron by a degreasing means. It is better to choose pure alcohol. It quickly evaporates and leaves the smell inside the pipes, in contrast to acetone and solvent.

If the ambient temperature is close to zero, you need to slow down the cooler of the connecting seam. To do this, use napkins from warm fabric.

Wipe parts need a napkin from a fabric that does not leave a pile. Inside the soldering iron, it will smooth.

For a double pipe loop (hot water and cold), preferably the location of the hot contour over the cold. So the condensate will not be formed on the pipes. Connect the parts in the places of transition from the horizontal to the vertical can only be at an angle of 90 degrees.

Today, polypropylene pipes are used for mounting the water supply system. These are comfortable in work, reliable and durable products. Make with their help the water supply system almost any configuration will be able to each. The main thing is to know the rules of the compound. In this article, it will be discussed. It will be described here about how to solder pipes from polypropylene.

Methods soldering pipes from polypropylene

To connect pipes from polypropylene take advantage of one of three ways. Namely:

• using a diffuse soldering (using a special device - "Iron");
• solder with the use of electropline;
• using a cold spike.

Diffuse soldering is considered the most common method. In this case, various good fittings are used and an electric heating device (soldering iron or "iron"). This method will be described in more detail just below.

When connecting with the help of electropotting, special connecting elements are used. They are wear on the ends of the pipes. After that, electrical voltage is supplied to special metal inserts in the fitting. As a result of the heating of the metal, polypropylene melts, and after cooling, a solid connection is created.

This method is rarely used, only in cases where the spike using the "soldering iron" is impossible. Also in this way of creating communications from polypropylene pipes enjoy large construction companies, when performing large amounts of work. The fact is that the electrophings themselves are quite expensive, so it is unprofitable to use them at home.

Another method to combine polypropylene pipes is using cold welding . Special glue is applied to the desired plot. With its composition glue mass slightly softens polypropylene. As a result, a solid and reliable connection is created. In more detail with this method, you can familiarize yourself with the video from the Internet.

But this method has its drawbacks. First, the cold soldering can only be used when installing communications for the supply of cold liquids (cold water supply). When heated, the connection may lose its tightness. Secondly, the pipes are necessary to firmly secure. If you use a cold spike on sites where pipeline movement is possible, the connection (over time) will give to flow.

To perform the spike of two polypropylene pipes, it is necessary to pre-prepare required tools and materials. It will take:

Also before soldering view the tablewhich indicates the temporary framework of all works. To heat the polypropylene pipes of a certain diameter to the desired state, a certain amount of time is required. Also, it is also necessary that the polypropylene is fixed in the compound and completely cooled.

As a rule, for mounting the water supply system or heating uses pipes of small diameter. In this case, it is necessary:

Prepare all the tools and materials, as well as learning the necessary temporary parameters, you can start working on soldering. And how to do it correctly, tells in the next chapter.

Good time of day, dear reader! The assembly or repair of heating systems, water supply systems, sewage from modern types of polymer products is easily and fast, thanks to the type of seating used to connect the parts. You can perform these work with your own hands, if you know, prepare in advance required tools and fixtures.

You can save the following types of pipes.

1. polyvinyl chloride (PVC);
2. polypropylene;
3. copper pipes;
4. polybutene;
5. from polyethylene increased heat resistance;
6. plastic products with reinforcement.

Required tools and materials for soldering

To work at home, you will need to prepare all the necessary tools and materials in advance:

• electric soldering iron;
• nozzles and support for the soldering iron of the appropriate size;
• fire or acute knife for removing sowing;
• measuring ruler or roulette;
• marker;
• shears for cutting pipes;
• sheer is a device for removing the reinforcing layer;
• special chamfering tool;
• solder for soldering;
• fluxes and fittings;
• alcohol composition for degreasing.

Solder for soldering

Solder produces in the form of wire, foil, bar, etc. It is necessary to obtain a stronger seam of copper structures. Made on the basis of tin, silver, zinc, lead, antimony or copper.

Depending on the melting point, it is divided into:

• fusible;
• medium fusible;
• high fusible solder.

Fluses and fittings

Fluses are used when soldering to protect the connected metal surfaces from oxidation. They are produced in the form of liquid, dry mixture or pasty state and differ by chemical composition, properties and destination. For example, to clean the surface of copper rolled and improving the yield of solder boric acid, zinc chloride, hydrochloric acid.

A protective film can be created using rosin, wax, various resins.

Fittings are a small size of the product, put on the ends of the pipes that are connected by soldering. These include clutches, tees, crossmen, circuit, plugs, corners, etc. They must be from the same material as the pipes themselves. And of course, not for anyone is a secret that it is possible to buy fittings in any store plumbing.

Scissors for cutting

This type of tool has other names - pipe cutting, pipe scissors or. It is intended for quick cutting of plastic products, ensures the edge of the cut without sovereigns, which simplifies the preparation for the welding process.

There are 4 types of pipe scissors differing in design and price:

• precision pipe cutting with a ratchet mechanism. The device is used to cut pipes with a diameter of no more than 75 mm;
• roller scissors;
• automatic pipe cutting in the shape of a pistol;
• pipe cutter - guillotine.

Tips for choosing and operating a pipe soldering iron

If its technical parameters should be taken into account:

• power. Powerful devices are needed to weld the pipes of large diameter, for household systems, in which the diameter of products does not exceed 50 mm, you can purchase a power device with a power of 0.6 - 0.8 kW;
• the quality of the coverage of the nozzles and the technology of their application. The welded products are easily removed from the tonglon coating nozzles, so it is desirable to choose a soldering iron that is equipped with such nozzles. In addition, you should pay attention to the possibility of heating not only one, and two or three nozzles at the same time. This will significantly speed up the performance;
• type of temperature controller. The soldering iron can be equipped with an electronic, capillary or bimetallic thermostat. It is better to choose a model with electronic regulator Temperature, as the other two has too much discrepancy between the predetermined and actual heating temperature of the products.

The essence of the process and ways soldering

Soldering is used for sealed connection of the pipeline sections among themselves, mounting shut-off reinforcement, control and measuring and safety devices.

To connect the ends of the pipes and pipes pipe fittings The three soldering technologies are used:

• diffusion method. Welding is carried out due to the heating and squeezing of the connecting elements without melting the base material of the parts and the use of additional substances;
• soldering with the help of electropline. Special fittings with a heating element are used to connect. The soldering process occurs due to the partial mission of the inside of the electropline under the action of electric current;
• cold way. Heat resist elements are connected using additional material - solder.

Step-by-step instructions for soldering plastic pipes

It consists of three main phases - heating, docking, fixing and cooling elements, to perform a certain preparation, compliance with the temperature regime and safety rules.

Security measures

In the process of soldering, it is necessary to comply with elementary safety measures to work with power tools:

• the soldering iron must be protected from atmospheric precipitation, dirt and splashes;
• before connecting the device to the network, you must make sure of its condition, the integrity of the power cord and fork;
• during operation, it is necessary to air the room and use the thermocryptoms;
• do not touch open areas Skin to heated surfaces.

Preparation of elements and details

At this stage, you must perform:

• cutting products on segments of the desired length;
• sweeping cuts from sowing and their thorough grinding;
• degreasing cuts with alcohol mortar;
• application of a seat, according to which it will be possible to control the depth of the injection of pipes into the apparatus;

Preparation of soldering iron

The device needs to be included in the network in advance, set the thermostat to the desired position and warm up the product to operating temperatures depending on the type of plastic.

Typically, the heating time of the soldering iron is 30 minutes until the light goes out. The device will be ready to work 10 minutes after reaching the set temperature.

When preparing the device, it is also desirable to additionally control the temperature of the fittings and the sleeves with a surface electric thermometer.

At what temperature to solder plastic pipes

For soldering of polyethylene products, the thermostat on the device is mounted 220 ° C, for polypropylene - 260ºС. If the controller is missing, you can adhere to the parameters of the heating of parts from table 1.

Table 1.

Rules of docking

When assembling joints, it is necessary to monitor the combination of the edges so that both products have coincided with the surface and the axis of the pipeline does not move. The gap between the edges should be uniform over the entire diameter with a size of 2 - 3 mm.

Pipe connection

Preheated parts are removed from the soldering iron's nozzles and connect with each other, slightly pressing the ends. The solidification of the polymer will occur in 2-3 minutes.

Stripping and cooling connections

The connection site should be in a fixed position until the plastic cools up to a temperature of 38 - 42 degrees. To do this, the connected parts are fixed in a clamp or clip until cooling.

Snapshots are performed by a sharp knife after fully cooling the docking space.

Check the quality of the compound

At the end of welding, all joints are subject to visual inspection. In high quality execution welded seam There must be a smooth surface, without traces of porosity, cracks, folds and excessive shine, which occur during overheating. The influx in the seam zone should be solid and uniform over the entire circumference of the compound and rise above the outer surface of no more than 2 mm - for products with a wall thickness up to 10 mm.

The maximum height of the pipe roller with a larger wall thickness is 4 mm.

Video by soldering

How to solder the pipe on the wall can be viewed on the video:

Frequent errors

Soldering plastic pipes does not require special skills, but if you do not adhere to the established rules and rules, it is possible to spoil the connection. Typical errors Beginner masters are:

• using dirty nozzles. If droplets of the molten polymer remain on the nozzles, then with the next welding, they can wake between the edges of the products and the connecting seam should be sharply weakened;
• water residues and dirt on the outer surface. They will exclude tight contact of the surfaces of parts over the entire area;
• application excessive effort when combining parts. Part of the melt at overpressure may be extruded inside the pipe and reduce its permeability;
• an attempt to clean the influx of molten plastic to the complete cooling of the connection site, which inevitably leads to the deformation of the pipe;
• insufficient warming or overheating of the place of the joint.

To ensure maximum reliability of the pipeline connection sites, experts advise adhere to the following requirements:

• right start welding work after 10 minutes from the moment of heating the soldering iron;
• perform operations on welding or soldering parts only at the positive ambient temperature;
• pipe areas, connected welding method, it is necessary to make it possible to cool, not allowing their offset relative to each other or twisting;
• on the thickness of the walls of more than 6 mm, the welding of finishing products is performed by double seam. At a lesser thickness of the wall of the joint, you can sow one seam;
• all design elements fixed by soldering should be from one manufacturer, as they can be varied in the composition of the ingredients in raw materials, which will negatively affect the quality of the weld.

Soldering in hard-to-reach places and corners

When soldering pipes located in hard-to-reach places, for example, close to the surface of the wall or ceiling, a special technique is used, consisting in the successive heating by the solder apparatus of the direct and response section of the compound. Warming the flange of the straight area you need large quantity The time so that he does not have time to cool down while in the work there will be a retaliatory part of the workpiece.

Smooth line in places angular junctions Pipes can be achieved when using special angular adapters and fittings. At the same time, it is important to very accurately place on the supply pipes the depth of their entry into the body of the corner detail.

Connection of plastic pipes without soldering

Plastic pipes are not necessarily welding, they can be connected with a special adhesive composition. It is applied to the entire pre-skimmed surface of the pipe of the pipe, which will be introduced into the socket. In the terminaby, the inner surface is also degreased and covered with glue, but only 2/3. For better clutch of the surface of the pipes under the adhesive connection before degreasing process with sandpaper.

The prepared part of the pipe is injected into the socket until it stops and turns 90 degrees. In this position, the above parts should be held 1 - 1.5 minutes until the glue is grabbed.

Complete drying of the adhesive composition will occur in a few hours.

Sewed plastic pipes leading to a tank septica can be connected using compression fitting. In this method, the process of connecting pipes consists of the following steps:

• stripping upper layer on a pipe from pollution;
• chamfering at the end;
• weakening of the cape nut on the fitting and install the end of the pipe into it;
• spinning the nut in the opposite position, at this moment there is a clamp (compression) pipe with a crimp ring.

Fitting fixation is performed manually or with a horn key. The accompanying effort should not be excessive, otherwise the pipes can burst.

Pouring method involves the use of a highly elastic sealing ring. The tightness of the compound is ensured by the compression of the gasket between the cable walls and the smooth end of the pipe.

Welding of plastic pipes of large diameter

To connect the pipes with a diameter of more than 50 mm and the wall thickness of 4 mm, use the butt soldering technology, which lies in the simultaneous cooking of the ends of the 2 segments throughout the plane. The most difficult welding in this method is to properly perform the centering of the joints and provide the desired length of the clearance between the details.

Soldering of polypropylene pipes occurs in enough short timeThis is the most attractive side of the polypropylene tube. Due to the low price, technological and ease of docking, it took a leading position among pipes from competing materials. Preferably applied when laying a plumbing and partially thermal engineering network. And let the strength inferior to communications from metal pipesBut, clutch repairs in an apartment or house, preference gives exactly this material. Pipes are securely, firmly and quickly combined with soldering in minutes.

Polypropylene pipes are becoming increasingly popular due to the simplicity of installation and reliability.

Types of polypropylene tubes

Plastics, which comes to the manufacture of the product, refers to high strength. It does not rust, does not accumulate salt and lime growths do not stick to it. Networks collected from polypropylene are designed for a long service life (up to 50 years). Actually the service life of pipelines is not limited if there is no exceeding technical Conditions Operating temperature or pressure. The material of the parts is capable of working for a long time at a sufficiently high pressure at low temperature of the liquid, and vice versa.

Polypropylene pipes are produced in four color species, the color is nothing but the color does not mean. Polypropylene is allowed to use in the water supply, sewage system and heating.It is allowed to connect plastic with metal, making transitions.

Polypropylene products are divided into categories: PN10 - this category is installed by thin-walled products. Application is limited to 45 ° operation temperatures and cold water. PN16 is a category that is allowed to use in pipelines with high pressure on cold water or on heating system without pressure. PN20 - Most. universal optionThis category is used for cold, and for hot water - up to 80 °. PN25 is the reinforced category of the polypropylene tube, aluminum foil is introduced into the composition, due to this, the use is expanded to a temperature of 95 °.

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Technology soldering polypropylene pipes

According to technical managing On the product of welding works on polypropylene pipes, if the diameters of the connected pipes are less than 63 mm, then soldering the field welding method. Fitting is installed at the junction site, this is a special detail to which both pipes weld. For pipes with a diameter, more than specified fitting is not required, they are welded. This compound is considered more reliable.

It is made by the handwriting apparatus - "Iron".

When welding is performed on pipes from 40 mm and above, it is better to use welding machines with a centering device.

The work is somewhat more complicated, but it is necessary.

The welding machine is arranged as follows: it has special removable nozzles for pipes that are heated with electricity. Nozzles Made like a sleeve that melts the exterior edge of the pipe or heats interior Connected details.

Nozzles are performed by various diameters - from 14 to 63 mm. To exclude the burning, the heating parts are covered with teflon. Making welding work, constantly monitor the cleanliness of the nozzle. It is necessary to erase marks of plastic after each welding, better with special rags or wooden scrapers. It is necessary to clean up to the complete cooling of the heating element, an attempt to clean the cold elements can spoil the teflon layer.