Various methods of welding polypropylene pipes

Today, polypropylene pipes are welded in various ways.

New construction materials, including polypropylene, allow creating reliable and durable mechanisms of water supply, heating and sewerage.

The technology of welding polypropylene pipes is well developed.

Purposefully for these needs, equipment has been created that is easy to handle. In real conditions, polypropylene pipes are welded by hand using a soldering iron.

The use of one or another method is determined by the specific situation.

In order to qualitatively perform the installation of the pipeline, you need to know the technical and operational characteristics of products made of polypropylene.

Features of polypropylene pipes

The first thing to note, polypropylene pipe is a complex technical product.

Currently, the industry produces three types of these products:

• for cold water supply;
• for hot water supply;
• for heating systems.

Compared with metal pipes, polypropylene products have a lower weight with equal strength. The connection of the elements to each other is accomplished by welding.

The apparatus for welding polypropylene pipes allows the installation of extensive communications.

Welding machine has a compact size, which allows you to work in hard-to-reach places.

Rust, lime deposits, dirt and corrosion do not form on the inner surface of polypropylene pipes. From the reinforced pipes lay heating pipes.

The video shows the process of connecting individual elements when installing a heating system in a private house.

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The welding technology for polypropylene pipes is simple and is available for home use. The welding set for polypropylene pipes contains all the tools necessary for work.

In some cases a soldering iron and a device such as an iron for welding polypropylene pipes are used. With pipes made of metal, such circulation is impossible.

Elementary calculations show that polypropylene parts are used much more favorably than metal products. This applies to pipes of large diameter, and most running sizes.

In order to select the appropriate type of product, you need to know their classification and labeling.

For production, the pipe is marked PN and the numerical code indicates the degree of maximum pressure that the product withstands.

You have to make a choice with knowledge of the subject, and immediately acquire a device for welding. To perform the installation of pipes yourself, you will need special equipment.

Welding tools

Before assembling the pipeline from polypropylene parts, it is necessary to properly prepare.

The welding device should be selected after the technical documentation for the pipeline system has been developed.

The choice is determined by technical parameters and economic considerations:

• limit size;
• ergonomic device;
• cost of the device.

Installation of small diameter products, up to 63 mm, can be successfully performed by a hand-held device. If you want to connect large diameter products, from 63 mm, then mechanical machines are used.

Such a set for welding polypropylene pipes is used for the laying of long lines.

The set of welding tools includes special scissors, which are designed for cutting polypropylene and nozzles of different diameters.

Special device for cleaning the surface of the product before welding. The surface of the parts must be degreased. For this purpose, ethyl or isobutyl alcohol is used.

Acetone can not be used because it loosens polypropylene. The warm-up temperature reaches almost three hundred degrees. Therefore, when working, use gloves.

The video presents a manual device for welding pipes and a sequence of operation during operation. The connection of elements in a private house is more convenient for carrying out with it.

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Handheld device

By its design, the device is a compact product that takes up little space. The main element of the device is a heating mirror on which the nozzle is attached.

In everyday use such a device is called a soldering iron or iron. In order to set a certain temperature level, the welding device is equipped with a control and adjustment unit.

The panel contains LED indicators and on / off keys. The working temperature for welding parts from polypropylene varies from 260 to 280 degrees.

The operating instructions for the device are the same as for any other electrical device.

The main parameters for which you need to choose the device when purchasing are:

• power;
• number of nozzles on the mirror;
• availability of stand.

The more the power of the heat-heating element, the faster the nozzle warms up. This parameter determines the performance of the device.

One or more nozzles can be attached to the soldering iron. The amount varies depending on the design of the device and the dimensions of the soldering iron.

Practice shows that by performing a connection system in your home, it will be enough to have two baits. For such systems, pipes of 20 and 25 mm in diameter are used.

The piping is connected and routed using connectors that are called fittings. These products have different configurations - a corner, a tee, a cross.

The fittings must be handled as well as with polypropylene pipes.

When welding reinforced parts in hard-to-reach places, you must strictly adhere to the set time for warming up and fixing the connection.

Especially for installers who work in their home, a table is made, and it shows the optimal modes for heating and connecting the two elements.

The video shows a fragment of connecting parts in an uncomfortable place for work.

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Mechanical device

Welding units of mechanical type are designed to provide connection of large diameter pipes.

The mechanical device has a more complex design than the manual version.

The welding unit is assembled from the following units:

• support frame;
• control block;
• grip for pipes;
• liners are leveling;
• saw for pipe trimming;
• heating mirror.

The device, despite its complex structure, has a compact design. Installation of the pipeline is carried out on the principle of butt welding.

The operating instructions prescribe a certain sequence of actions. First, the end faces of the parts to be joined are cleaned.

The pipes are then heated, and their temperature should reach the melting threshold. At the final stage, the pipes are joined and tightly pressed against each other.

The pressing equipment is supplied together by the machine.

The welding unit, which has such a device, allows welding polypropylene pipes in the field during the laying of heating lines.

The video shows a device for welding large diameter pipes made of polypropylene.

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Welding technology

Equipment for welding and installation of heating or water supply systems should be prepared in advance. The welding technology is worked out to the smallest detail.

The whole process consists of three simple steps. First, you need to prepare the parts to be joined. Then heat them to melt. The melting point depends on the type of material.

And the third stage is the joining of two segments. The video shows how this is done. Practice shows that the larger the diameter of the tube, the longer it should be heated.

A soldering iron is used to connect products of small dimensions. The heating interval should be as specified in the instruction.

Before the welding machine is switched on, pipe sections and fittings should be prepared. The device of the heating system needs to be displayed with marks on the walls in the attachment points.

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Marker also marks the parts that will be welded. All the elements to be combined must be dried and degreased. Then they are inserted into the apparatus and heated.

The soldering iron must have an appropriate temperature. After heating, the parts are removed from the nozzles and connected by uniform movements. Without rotation.

Selection of the welded

When preparing for the installation of the pipeline, the question arises, which welding machine to choose?

You need to make a decision after evaluating the work front. It is important to calculate the power of the device and the number of nozzles that are attached to the soldering iron.

The welding time of polypropylene pipes is determined by the power.

It is necessary to take into account the cost of the welding machine. Superfluous overpay does not make sense.

But with a low-power unit, the work can be unnecessarily prolonged.