Polypropylene tubes Fiberglass for heating. Reinforced polypropylene pipes for heating: choice, advantages and installation. Specifications and production

Application in the heating system of polypropylene pipes has significantly simplified installation work. In this case, the qualitative indicators did not decrease. Fiberglass used for reinforcement made it possible to create durable products. In terms of its quality characteristics, this material is not inferior to aluminum, but the installation is as simple and reliable as ordinary propylene products.

Characteristics and properties

The reinforced polypropylene has high protective properties and high-quality characteristics. Reinforcement using fiberglass allows you to create a three-layer design. External and inner layers are polypropylene inserts. Fiberglass is located between the main layers. Such pipes have a special labeling - PPR-FB-PPR.

The fiberglass layer is merged with the bulk, which prevents disruption of the integrity of the structure. Material has low thermal conductivity. This makes it possible to maintain the temperature of the coolant.

Products using fiberglass are not resolve and differ excellent resistance.

Installation work is performed using welding and do not require calibration and stripping segments.

Main advantages

Polypropylene pipelines have excellent properties:

not subject to corrosion, it extends the service life of several times;
able to withstand high working pressure;
resistant to biochemical and chemical impacts;
have low hydraulic resistance indicators, which reduces the impact loss to the minimum value;
very durable and reliable;
fully safe for humans.

In addition, using polypropylene fittings, you can create complex configurations and forms. In terms of strength, polypropylene is much better than similar building materials. But when heated can be deformed: increase in size and lose the desired rigidity.

It was to eliminate such problems and was decided to use fiberglass. This is an unusual solid frame, which is designed to hold the polymer in a standard state.

The design with fiberglass is able to withstand significant loads. At the same time, the plasticity and rigidity of the product increases.

An important advantage of pipes reinforced with fiberglass is a long service life, reaching 50 years.

Appointment and application

Due to its unique characteristics, polypropylene tubes are used in various systems: water supply, sewer and heating. The possibility of using such pipelines is affected by the value of their diameter.

Pipes with a diameter of 20 cm and can be used more for heating in public spaces with a large flow of people: shopping centers, hotels and hospitals. Products having a diameter of 20 to 30 mm differ in good bandwidth and are used for heating in private homes.

20 mm pipelines are used for hot water systems, and products with a diameter of 25 mm are used for risers.
Products with a diameter of less than 17 mm are used when installing warm floors.

For reinforced fiberglass pipes is also used in agriculture. For example, for the organization of irrigation, drainage systems, as well as for the discharge of soil and wastewater.

Due to its high resistance to chemical aggressive media, polypropylene pipes are in demand in industrial sectors. They are used to transport chemical solutions and compressed oxygen.

Comparative characteristics

An important advantage of fiberglass reinforced pipelines can be considered a minimum linear expansion rate, which contributes to greater strength.

In addition to fiberglass, aluminum is also used to enhance the design. The reinforcement of aluminum creates a multilayer structure in which the aluminum layer is under a subtle polypropylene layer. It seems to grow into it, resulting in a reliable connection.

This method of enhancing pipes allows to obtain excellent performance. But there are also their drawbacks. Installation of pipes with aluminum is complicated due to the need for stripping individual areas of the reinforcing layer. This procedure requires a serious approach and certain knowledge.

Fiberglass reinforced construction before welding does not need to be cleaned. This is its main advantage.

The fiberglass layer is used as an oxygen barrier. Therefore, such pipes can safely be used in various heating systems.

Aluminum or fiberglass?

Products with fiberglass possess the following features compared with pipes, enhanced aluminum:

the expansion coefficient is less than 75%, in contrast to analogs with aluminum;
it is possible to increase the distance between the supports, which allows you to save on the installation work;
significantly increase service life;
the thermal conductivity of such pipes is lower than that of aluminum reinforced products;
increased thermal carrier conductivity.

If you plan to install the heating system on your own, it is better to choose a material using fiberglass.

Criteria for selecting pipes

Choosing the desired option for heating, you should pay attention to the following parameters:

diameter value.
maximum temperature.
limit working pressure.
chemical exposure resistance.
features of linear expansion.

The smaller the load on the pipes, the more their service life. Before making a choice, we must decide on the type of water supply and the functional load. It is also important to familiarize yourself with the main stages of the installation of the heating system.

FEATURES OF MONTAGE

Polypropylene structures are mounted by a special welding machine. During work, a certain sequence should be observed. Metal is missing in the product, so the desired sections simply need to be measured and cut off with nipples. Then the chamfer is made for hermetic and tight connections, for this, a special machine is used.

Pipe welding needs to be performed intended for these purposes inverter, each brand of polypropylene products has its own temperature for cooking. After the seam cools, communications are ready to operate.

Polypropylene tubes are environmentally friendly, in many properties show themselves above the steel. They are more technologically, the price of them below, they do not need to be protected from corrosion, the process of connecting them into a pipeline is much less time-consuming, the service life is significantly higher.

For heating are used mainly reinforced fiberglass or aluminum polypropylene pipes. This is due to the fact that the temperature of the coolant in the heating systems can reach 100 degrees Celsius. With such a temperature, unarmed pipes are laid on clips will be linearly lengthened and saving that it requires introducing compensators to the pipeline.Polypropylene pipes reinforced with fiberglass, have a linear expansion coefficient five times less than unarmed. Their seizing is significantly less, which allows you to install clips at a greater distance from each other.

Historically, the first reinforced polypropylene tubes were pipes reinforced non-fiberglass, but applied along the surface by a layer of aluminum. Their price is slightly higher compared to unarmed. But they have one inconvenience - before installation, such pipes must be cleaned with aluminum, and this is quite painstaking work, which increases the time for assembling the pipeline. In the pipes reinforced fiberglass, the reinforcing layer is bueled inside the design, which does not require such a stripping before they are connected.

Reinforced polypropylene pipes, price which is approximately the same, as well as coated with aluminum, have more thermal resistance, since metal is missing in their design. In view of this, they can be insulated with tubes from energy flow or K-Flex-A with a thickness of the walls somewhat less than pipes with aluminum.

In the warehouse of the organization there are in the presence of fiberglass reinforced polypropylene tubes. External diameter from 20 to 110 mm.

Water supply, heating in the house or apartment (autonomous or centralized) is not without the use of pipes. Many people remember how metal pipes look unattractively, they need to constantly paint, maintain and still at any time they can bring the owner of the housing, because over time they react to temperature differences and pressure are worse.

The metal is pretty quickly from the inside is covered with screaming, which significantly slows down the movement of hot water and, as a result, reduces heat transfer. Probably, all cons of metal pipes pushed scientists, engineers and technologists to develop and introduce new models of pipes manufactured from modern materials on advanced technologies.

Manufacturers of polypropylene reinforced pipes

It is no secret that when buying pipes, considerable importance is the choice of well-proven itself in the Russian and international producer markets. Today we will present some popular brands specializing in such products.

FV Plast (Czech Republic)

The company specializes in polypropylene for heating, hot and cold water supply, heating. The company's products are available only in gray with aluminum and fiberglass layers.

"Metak" (Russia)

The company produces various products from polypropylene, including reinforced fiberglass pipes under the brand "Metak Fiber". The company's products are ideal for highly loaded heating systems.

Banninger (Germany)

The German company produces excellent products that differ in the highest quality and reliability in operation. Buyer will easily find it on shop windows in emerald green color.

In conclusion, I would like to recommend our readers not to buy reinforced polypropylene unknown companies that do not even indicate the name of their brand on marking. Saving a small amount when buying, you can lose much more money (nerves, time), when low-quality products will be submitted. And it happens, as a rule, at the most inopportune moment.

Polypropylene pipes reinforced with fibrovolock appeared later than analogues with aluminum foil. But rapidly began to gain popularity in the sphere of plumbing during the installation of water supply and heating systems.

Technical standards for this type of equipment are largely superior to PP tubes unarmed and successfully compete with reinforced aluminum.

Design and characteristics

Reinforced fiberglass polypropylene pipes are marked with PPR-FB-PPR or PPR / PPR-GF / PPRwhere FB labeling (fiber) and GF - Glass Fiber means the presence of fiberglass, and the PPR is a versatile polypropylene brand that has been successfully used in hot water heating and systems.

Accordingly, the labeling, pipes are three-layer products: polypropylene - Fiberglass - Polypropylene.

But due to the fact that they are produced according to coextrusion technology (the compound of jets of different materials into a single holistic structure almost at the molecular level), layers are not glued, for example, during the reinforcement of aluminum.

That is, with their multi-layered the equipment is homogeneous and does not have the ability to bundle.

Due to this design, reinforced fibrovolok PP pipes are obtained tougher simple polypropylene. This complicates the installation procedure to some extent, but reduces the risk of sagging and allows the samples of smaller diameter for heating and plumbing systems.

Another nuance - the stiffness of the inner layer contributes significant reduction in linear expansion characteristics In polypropylene pipes reinforced with fiberglass. This is one of the reasons for the use of fiberglass reinforced PP pipes in heating systems.

Thickness and the amount of reinforcing composition is calculated in accordance with GOST standards. Fiberglass elements do not penetrate into an outer layer, where they would interfere with welding compounds or internal, which would lead to sanitation standards. Lack of metal eliminates the appearance of stiffery salts - So, all compounds become literally monolithic.

In the manufacture of fiber fiber is painted in different colors, but they are not an indicator of any operational or technical characteristics. According to the sizes, they correspond to the rest of the reinforced PP pipes.What allows you to use standard fittings and replace individual sections of pipelines from the material of the old sample.

Advantages and disadvantages

Of the design deficiencies of the reinforced fiber tubes from propylene, it is possible to note only that compared to models, enhanced aluminum, the coefficient of expansion is slightly higher - by 5-6%.

But compared to unarmed it is below three, by 75%, What allows you to increase the distance between the mounts and reduces the installation cost. As well as:

They are much thinner than those who are unnecessary PP pipes, which is very relevant when conducting them in the walls, while the conductivity of the coolant is higher by 20%.
The fiberglass layer will not give the pipeline to break through, which provides wear resistance and an increase in durability - up to 50 years.
Strength and density of connections do not require regular maintenance.

Thanks to good insulation properties there is no condensation, And the loss of heat is minimal.
A small thermal expansion maximally reduces the risk of damage.
In addition, during installation they do not require calibration and strippingWhat is necessary for pipes reinforced by aluminum foil.
The thermal conductivity corresponds to the indicators of ordinary PP pipes and lower than that of enhanced aluminum.
Cases of solidification of Al polypropylene products are known, which is excluded in fiberglass coextrusion.
All materials are non-toxic and completely harmless.
Have a small weight, differ simplicity of installation. It is connected in any way - the soldering fuse or butt, threaded or flange connection.
Chemical stability allows you to withstand even poor-quality coolant.
High passability due to the smooth inner surface, respectively, and the lack of deposits.
Pipe elastic, abrasive-resistant and low noiseDifferent with durability to increase pressure.
Hold the temperature values \u200b\u200bin the range -10 - +95 Celsius.
When achieving and even exceeding critical marks FB pipe can expand and cross, but not burst.

Criterias of choice

Looking at the labeling of the pipe, you can immediately understand, for what purposes it is intended because pN abbreviation means "nominal pressure", and the numbers - its working indicator.

PN-10 with a wall of 1.9 - 10 mm - designed for a temperature of up to 45 degrees, that is, applicable only in cold water supply systems. Thin-walled, withstand pressure up to 1 MPa or 10 atm. Can be used to arrange a warm floor, but taking into account the temperature regime. The diameter inside and outside - 16.2 - 90 mm, 20 - 110 mm.

PN-20 with a wall of 16 - 18.4 mm is most in demand, as practically universal. Suitable for X / g of water supply, heating, equipment of warm floors. It is maintained to 95 Celsius and pressure of 20 atmospheres. Have excellent bandwidth, used in private and comfortable houses, public institutions, enterprises. The diameter inside and outside - 10.6 - 73.2 mm, 16 - 110 mm.

PN-25 with wall in 4 - 13.3 mm - designed for the arrangement of risers, heating and water supply systems, warm floors, for industrial purposes. Pressure when working - 25 atmospheres, temperature - 95 degrees. Not susceptible to thermal deformation. The diameter inside and outside - 13.2 - 50 mm, 21.2 - 77.9 mm.

When choosing polypropylene pipes reinforced with fiberglass, for mounting the heating system it is necessary to repel from your own requirements and product specifications:

Maximum temperature testimony;
Nominal pressure;
Diameter.

Accordingly, the most suitable polypropylene tubes with fiberglass for heating are PN-20 and PN-25 C D 16 - 40 mm, for warm floors - all three types. To perform a liner to radiators optimal models with a diameter of 20 to 24 mm. When installing the pipes of a smaller size of the inner seam, which is formed during the soldering, can become an obstacle to free flow of water.

Based on the above, it can be concluded that the pipeline is propylene with the GF layer - almost the perfect option not only for sewer or plumbing, but also for the heating system.

In addition fiberglass is an anti-infusional barriernot allowing oxygen penetration. Diffusion is fraught with acceleration of corrosive processes of all metal equipment - pumps, boilers, etc.

This is especially rapidly happening in water waters with high temperature - hot water supply, heating.

Unnamed PP pipes such a property can not boast. In many criteria, they are significantly inferior to reinforced fiber film, especially relative to heating systems - polypropylene pipes without reinforcement are thicker, weaker, prone to deformation.

sansovet.com.

What is the reinforced pipe

Polypropylene is an organic polymer from which safe in operation, cheap (in comparison with the metal) pipes with a long service life. A significant disadvantage of pipelines from a simple polypropylene is their sagging and deformation while increasing the temperature of the transported fluid.

The second quality of polypropylene, which creates problems during the operation of pipelines, is a linear (in length) their expansion during operation in heating or hot water supply. The lengthening of the pipe reaches 10 cm for 1 time-meter and requires the installation of compensators.

With the open installation, it worsens aesthetics, adds cost. When closed, the bibin of the pipeline may cause the destruction of plaster.

Reinforcement is adding polypropylene material into the wall of the material: aluminum or fiberglass.

The reinforcement of fiberglass plastic materials is the latest development in this area and takes into account the shortcomings of the reinforcement by metal. The additional inner layer stabilizes the plastic organic, making pipes more durable.

Reinforced plastic pipelines are approaching the possibilities for metallic, while maintaining all the advantages of an organic polymer.

Polypropylene reinforced pipe has the following qualities:

remains inert to chemical impact;
does not emit harmful substances, suitable for use in the food industry;
retains the smoothness of the inner wall, not "overgrown with" precipitation and scale;
are dielectrics, possess low noise and thermal conductivity;
it has the price lower than metal products;
has low weight, ease of transportation;
the linear expansion coefficient decreases 5 times in comparison with conventional polypropylene;
withstands more meaningful temperature and power loads;
it remains accessible to self-installation.

Scope of application

Polypropylene reinforced pipes are suitable for installation:

heating systems in centralized heating networks, private houses;
hot water pipelines;
industrial pipelines for transporting aggressive substances and food fluids (without heating).

The main consumer of polypropylene reinforced pipes is a private home owner. Plastic products best meet the needs and capabilities of consumers. Save the maximum service life in the conditions of communications of autonomous heating, inexpensive, easily transported, available for self-installation, maintenance, repair.

Note! Polypropylene tubes (even reinforced) are not recommended to be installed in centralized heating systems in cold regions. A significant difference in temperature regime, high loads are negatively reflected on the durability of plastic communications.

Types of reinforcement of polypropylene pipes

There are 2 types of enhance plastic products:

Reinforcement of aluminum foil.
Fiberglass reinforcement.

Metal reinforcement

The essence of the reinforcement by aluminum lies in the fact that aluminum foil is built into the wall of the polypropylene tube. The edges of the foil are searched with each other (in cheap products it can be performed with a mustache, without fixing).

The wall of the reinforced pipe in the section is a three-layer structure, where the metal middle closes the inner and outer layer of polypropylene.

Types of reinforcement polypropylene by aluminum:

the foil can be perforated (with holes throughout the area) or solid;
the location can be strictly in the middle of the thickness or closer to the outer edge;
the wall of the pipe can be three-layer or five-layer.

The five-layer wall contains additional layers of glue (adhesive) between metal and plastic. Product marking: PP-RCT-AL-PPR (with an additional layer) or PP-Al-PPR (without additions).

Reinforcement fiberglass

Fiberglass reinforcement looks different. Fiberglass, in itself, is not a solid "piece" material, but is scattered fibers. Fibrose fiberglass is mixed with polypropylene and also added inside the pipe.

Unlike metal reinforcement, the wall here is a monolithic system with built-in fiber fiber. Polypropylene tubes with fiberglass are called fiberglass. Product marking: PPR-FB-PPR.

Comparative characteristics of reinforced products

Having almost the same operating capabilities, fiberglass pipes do not need a special connection method. When installing plastic with an aluminum layer inside, this layer should be previously removed before welding.

The metal insert mechanically separates the polymer that during operation it may be caused by the destruction and leakage of communications. Qualitatively cook such products for non-professional is a challenge.

Products with fiberglass welded classically. You can use any method of connecting simple polypropylene pipes without changing the work algorithm. The monolithic of the compound places is the main advantage of fiberglass before aluminum. By the coefficient of linear expansion, fiberglass loses about 6% by metal.

Note! Polypropylene pipelines with aluminum reinforcement are most vulnerable to connecting places. It requires constant control in the process of their maintenance and operation.

Technical parameters of operation

Even the plastic materials reinforced with an additional layer have limitations under operating conditions. They can be used for cold, hot water supply and for mounting the heating system, which works on water. For steam heating contours such materials are not suitable.

The technical capabilities of the product are encrypted in its marking. Marking of the composition of the material is given above. Imported pipe pipes can have the following indications of the material:

Stabi - aluminum;
Fiber - fiberglass.

The labeling of diameter simultaneously indicates the extremely withstand pressure in kgf / sq. cm.

Characteristics and use:

PN 10. Maximum permissible temperature up to 45 degrees. Use for the installation of a cold water supply pipeline and a warm flooring device.
PN 16. Temperature - 60 degrees, pressure in 16 atmospheres. In the equipment of private houses is rarely used. Purpose - cold and hot (limited) water supply.
PN 20. Hot water supply. The resolved temperature threshold is up to 95 degrees recommended by 80 degrees. Maximum pressure of 20 atm.
PN 25 (reinforced). Installation of heating systems of any level. Temperature 95 degrees, pressure 25 atm.

Installation of polypropylene reinforced pipes

Installation of reinforced pipes does not differ from the welding of products from a simple polypropylene.

Apply:

chemical bonding (cold welding);
threaded compounds;
diffusion welding.

The best fastening of parts is achieved by high-quality diffusion welding.

For products reinforced by aluminum foil in the classic welding algorithm, the phase of cleansing the cutting pipe from the metal is turned on. To do this, use a special tool - Shaiver.

Algorithm for welding polypropylene pipes:

Preparatory: products are cut into size, cleaned, degrease. The welding machine is heated to 260 degrees (do not turn off in operation).
Heating: The pipe is inserted into the welder sleeve, the fitting is planted on Dorn. Do it at the same time, with sufficient physical effort, but without scrolling.
Connection: both parts are simultaneously removed from the machine and connect with the effort. At the time of frozen plastic, the parts are fixed motionless.

The installation process of polypropylene tubes is not complicated, but requires practical skill.

infotruby.ru.

Polypropylene pipes

Pipes from this polymer, as well as fittings, tees, taps and couplings are used in the arrangement of water supply networks (hot and cold water supply);
The mansion is the sewer pipes from polypropylene;
Systems of heating of any type.

The use of polypropylene pipes in heating networks puts certain requirements to their design. These additional requirements are associated with the operating conditions of such pipelines. As it is known, the temperature of the heating networks is somewhat different from the temperature of the work even in hot water networks.

Why reinforced pipes are used in heating systems

Polypropylene reinforced pipes for heating - whose characteristics allow them to be used for this, have a low temperature expansion coefficient.

Therefore, for use in heating systems such pipes must have a special design. This design is different from simple pipes in that the reinforcing layer is placed between two layers of plastic.

Types of reinforced polypropylene pipes

The reinforcing layer is fiberglass or aluminum foil. Both types are suitable for heating. Although it is worth noting that polypropylene pipes for heating reinforced with fiberglass have large values \u200b\u200bof the thermal expansion coefficient.

The advantages of polypropylene pipes

Polypropylene reinforced pipes for heating have a number of advantages in comparison with pipelines from other materials:

Long service life.
Polypropylene system manufacturers provide a guarantee for their products. The warranty period of such materials is usually 10-15 years. But in practice, polypropylene pipelines easily withstand three or four warranty life.

Resistance to corrosion.
The polypropylene reinforced pipe for heating is not subject to corrosion regardless of the type of heat carrier, which is used and the type of boiler - electrocotel or gas for heating).
In case of corrosion damage to the inner walls of pipes, areas are formed with a difficult passage of the coolant according to the system, which negatively affects operational characteristics.

Chemical inertness.
Water and other coolants are chemicals that under certain conditions come into various chemical reactions. If the material from which the pipeline is collected is chemically active when contact with the substance of the coolant, its integrity is broken.

Easy connection and installation.
Installing heating using polypropylene pipes can be easily with their own hands. For such work, you will need a minimum of special tools and equipment. No special skills or qualifications will be required.

Connection strength.
When connecting two polypropylene elements, a very durable seam or joint is formed due to the fact that the polymer is melted at docking and the connection becomes monolithic.

Gas-resistant material.
The walls of polypropylene pipes are absolutely impermeable for oxygen and other atmospheric gases, which protects against rust, oxidation and corrosion metal elements of heating systems.

Economy.
The price of polypropylene tubes is lower than copper and metal-plastic.

Strength material.
The polymer from which the pipes are made, has good mechanical strength and hardness indicators.

Installation of polypropylene tubes

The process of welding or soldering pipe data is characterized by simplicity and efficiency. Below is a step-by-step instruction of such work.

To begin with, you should prepare a set of standard soldering tools. There are ready-made sets. As they look shown in the photo below.

This set includes the following tools:

The welding machine is a soldering iron-heater for the soldering of the termination;
Pipe nozzles;
Nippers or special pipe cutters;
Sheer (with its help remove aluminum foil);
Steemer shooter.

Important!
For the installation of polypropylene pipes, despite the ease and ease of treatment and the compound of the material can not be used by subwoofers.
For a high-quality connection, you must use special tools.

The process of "welding" works

The connection of parts between itself is as follows. The edges of the two parts are heated until the polymer is softened and tightly connected to each other. At the site of the compound, the melted polymer forms a monolithic joint due to the mutual penetration of the material molecules between the parts connected.

Preliminary preparation

Pipes are measured and cut off;

From the outer edge, the chamfer is removed;

The connection site is cleaned and degreases.

Preparation of soldering iron

The welding machine is fixed on the stand;

The heater is turned on;
The soldering iron is heated to 260 ° C.
Two details are taken, which were previously prepared for the connection;
One item is satisfied with Dorn (special cone-shaped metal cylinder);
Another detail is inserted into the sleeve;

Process direct soldering

The parts are heated in the heater (the heating time is determined by tables depending on the thickness of the walls and the type of part);
Details are simultaneously removed from the heater;
The details filmed quickly dock with each other without scrolling along the longitudinal axis (two parts should not be "screwed" one to another).

Installation of the heating system

Polypropylene pipes (or rather welded polymeric compounds) do not require regular maintenance (unlike the threaded compounds of steel pipes and metal shut-off valves and fittings). Therefore, it becomes possible to lay the main heating pipes inside the walls by closed gasket.

It is clear that such a system is set for a long time. Therefore, before proceeding with direct work related to installation, it is necessary to develop a thorough plan, and also a scheme of pipelines with reference to specific rooms and features of walls and floors in buildings.

Such a preliminary plan is also useful to minimize the process of connecting parts among themselves "on weight". Best of all on a special mounting table to connect a large number of parts between themselves, and at the end - just connect them to each other.

If the pipes are not packed inside the walls, they are attached to the walls of the clamps.

This mount is performed in this order:

Claw screw screws to the wall;
A pipe is inserted into the attachment of the clamp.

Important!
It must be remembered that polypropylene pipes cannot be directly connected to the pipes of heating gas boilers for a private house.
To connect, it is necessary to take the segments of the metal pipe of 50 cm long and a suitable diameter and only then connect them to the boiler nozzles.

The video showing the installation of polypropylene pipelines:

conclusions

Polypropylene heating systems have proven themselves in operation. They are reliable and easy to install, install and maintain. Cheapness and availability makes them quite popular for use for mounting gas or electric heating.

otoplenie-gid.ru.

Pros and cons of polypropylene products

Advantages of ordinary polypropylene (PPR) pipes:

low cost - the price of such products is significantly less than products from metals and alloys;
strength;
low weight - polymer products are much easier than a similar metallic;
resistance to low temperature values;
chemical neutrality to most aggressive media - acids, alkalis, oil and gas production, salt solutions;
lack of corrosive threat.

Disadvantages of simple pipes:

The slight value of the upper temperature threshold is to melt the polypropylene pipes begin when the mark of 175 ° C is reached, and it softens already when the temperature in the system rises to 130-140 ° C. At first glance, this should not be a problem, since the operating temperature in the heat supply system is characterized by 90-95 ° C; However, when combining two parameters - increased pressure and high operating temperature - the damage obtained by pipes from the coolant becomes more significant, therefore, the risk of damage is increasing.
Next to expand significantly with increasing thermal load. To a greater extent, this concerns the length of the products: the length of the pipes increases greatly, wave-like lines appear on the surface. This is not only ugly, but also carries the threat of depressurization of the contour or damage to the walls of the walls or floor, up to cracking of fragile materials - plaster or cement.

This conventional problem is not solved, even the installation of compensators is not fully effective. The most logical solution is the use of reinforced fiberglass plastic pipes. Characterizing all the positive properties of high-molecular compounds, and in addition to high resistance to high temperatures, these pipes can be used in almost any heating circuits and hot water supply systems.

Comparison of pipes reinforced with fiberglass and aluminum foil

To strengthen plastic pipes and give them thermal stability, two types of reinforcement are applied:

aluminum foil;
fiberglass.

In this case, the aluminum plate can be used in various versions: in perforated or solid form, act as an outer coating or located in the middle of the products, between the layers of the polymer. Fiberglass placed by necessity inside plastic reinforced pipes.

It should also be noted that the increase in aluminum allows products to withstand greater pressure inside the system, so if the working pressure is not known or too high, it is better to use this particular option.

The characteristics of the reinforced pipe foils (denoted by PPR-Al-PPR):

increased rigidity of products, resistance to mechanical loads and all types of deformation;
the thickness of the layer of the reinforcing metal is 0.1-0.5 mm (variables depending on the size of the pipe cross section);
the method of combining aluminum and plastic - glue, on the quality of which depends on the quality of products;
magnificent tightness that does not decrease over time.

Installation of pipes with an aluminum layer is conjugate with some technological difficulties: before soldering or welding individual elements, the metal layer on the ends must be cleaned. Failure to comply with this recommendation will lead to a rapid loss of the structure of the structure - due to the first place, the separation of polymer and metal during heat treatment, in the second - due to the electrochemical damage of aluminum.

Against the background of the problems listed above, polypropylene tubes with fiberglass look a more acceptable solution:

the reinforcing material in nature and characteristics is quite similar to the main polymer;
before welding or soldering, there is no need to clean the ends;
during the heat treatment process, fiberglass and alloy not only are not separated, but, on the contrary, form a stronger connection.

Based on this, reinforced with fiberglass pipe - in most cases the ideal solution for the design of pipelines of various technological orientation.

Characteristics of fiberglass reinforced

As it is easy to guess, such products have three layers: two polypropylene and one reinforcing, consisting of the same material in a mixture with fiber fibers (fiberglass). Due to the almost the same composition, such a three-layer design is almost equivalent to monolithic.

Marking of reinforced fiberglass polypropylene pipes - PPR-FB-PPR (i.e. polypropylene-polypropylene). See also: "What does the marking of polypropylene pipes mean - reading features."

Characteristics of fiberglass reinforced polypropylene pipes:

full absence of corrosion threat;
the wonderful smoothness of the inner surface of the products opposing the accumulation of deposits and, as a result, the occurrence of blockages;
increased mechanical strength of products;
lack of threat of longitudinal or transverse deformation when increasing the internal temperature of the system;
chemical and biological neutrality - both aggressive environments and vital waste;
a small hydraulic resistance, therefore, the value of pressure losses is reduced to a minimum;
good noise reduction;
no way affect the properties of the supplied water, therefore, are absolutely safe for the health of people;
long service life - with proper installation and operation - at least 50 years.

Despite the attractive characteristics of the pipes reinforced with fiberglass pipes, they are inferior to aluminum products in two indicators (read also: "Types of PPR pipes and their characteristics"). First, able to withstand smaller pressure in the system. Secondly, due to the smaller stiffness for pipe sections or pipelines from 1.5 m, it is necessary to use additional fasteners, otherwise they will also be saved, as a result, the contour will begin to deform, and this will create a threat to depressurization. See also: "The characteristics of reinforced polypropylene pipes are views and advantages."

As for the dimensional characteristics of the reinforced fiberglass pipes, the following diameters are most popular:

up to 17 mm - are used for a warm floor;
up to 20 mm - for home water pipes hot water;
20-25 mm - used pipes with fiberglass for heating in common areas and when installing sewage risers.

To secure the pipes of a smaller diameter, it is quite enough clips from plastic, for products of large sections it is necessary to use clamps.

Installation of pipes with fiberglass

The connection of such products is carried out in the same way as conventional plastic pipes.

Three methods of fastening products can be distinguished:

With carving fittings.
With cold welding (i.e., special glue).
Thermal welding (soldering).

The first embodiment is made as follows: the end of the pipe is stretched into the fitting of the connecting element and is crimped in a circle by mounting nut. The compound on reliability (strength and tightness) is not inferior to the third method, it is permissible to apply even when designing pipelines of pressure type. The only drawback is with an unimaginable application effort when twisting the mounting nut, it can simply burst.

In the case of cold welding, the glue uses the speed of creation of a joint, but not reliability. When installed on the inner surface of the polypropylene coupling, glue composition is applied, then the end of the pipe joined; The connection is still kept that the glue has time to frost.

When welding with the welding machine, it is warmed by the surfaces of the ends of the pipes and connecting couplings; After the compound, they form a single polymer mass. Such a connection is most durable and hermetically.

In general, the use of pipes reinforced with fiberglass is fully justified, convenient and beneficial from an economic point of view.

trubaspec.com.

Features of reinforced polypropylene pipes

The advantages of reinforced polypropylene pipes

Disadvantages of polypropylene tubes

sun rays Negatively affect the structure of polymers, so polypropylene pipes cannot be used in the open space
linear expansion Polymer reinforced pipes 2 times more expansion of metal pipes

In this regard, reinforced polypropylene pipes are used in the system Hot water supply.They are produced by dual coextrusion. A layer of thermoplastic polymer is applied to the reinforcing framework under high pressure from the outer and inner side. The plastic is hardening in air, resulting in a solid connection with a solid framework.

This applies to all types of polymers, and PVC, and polypropylene and other varieties. Nevertheless, the technological properties of reinforcing pipes differ significantly. It depends on what material is made Reinforcing framework. Most often, either aluminum foil is used as a frame, or fiberglass. In pipes reinforced with aluminum, less thermal expansion. The diffusion barrier prevents the penetration of free oxygen through the walls of the pipes, respectively, calcium does not settle, and, it means that the walls of the boiler and radiators are not oxidized.

The fiberglass reinforced fiberglass (PPR-FB -PPR) has fiberglass threads, charged to polypropylene. These are three-layer structures consisting of an outer layer of polypropylene, the reinforcing layer of fiberglass and the inner layer of polypropylene. As a result of extrusion, all three layers are sintered into a single crust and form a very durable body of the pipe. Such pipes more plasticthan aluminum reinforced pipes. In addition, the radius of the latter is limited to 63 mm, and the first reaches 125 mm in diameter.

The only minus reinforced fiberglass pipes is their smaller than that of pipes reinforced by aluminum, resistance to internal pressure. In this regard, for their fasteners it is necessary to use a greater number of mounting elements. It is possible to install polypropylene pipes using glued couplings (the glue is applied on the coupling and part of the pipe, and then for 15 seconds the glue "sticks out" the coupling), but this method is not considered reliable. You can apply the press fittings for metal-plastic pipes, but the most reliable way is the diffusion welding, when the pipe and the melted coupling form a single body.

Due to the high popularity of reinforced pipes in consumers, some manufacturers for the sake of reduced the cost of the final product are used in the production process. low-quality raw materials.Moreover, in appearance to distinguish the high-quality product from the counterfeit is almost impossible. Fiberglass can be different colors, so it should not be oriented on its tint. The seller of polypropylene reinforced pipes is obliged to have a certificate, as well as it must allow the Buyer to check the external inspection of the product condition. Fastening elements are also required to be high quality, in particular, their composition should be brass. Only high quality polypropylene pipes have a solid compound and anti-corrosion properties.

Truck marking and their indicators

The latest development in the field of plastic production is high-temperature polypropylene "Randa copolymer"(PPRC type 3). Its main advantages are:

Below are the main physico-mechanical properties of the PPRC material (type 3).

PPRC polymer pipes Type 3 can be used as pipeline networks of cold and hot drinking water in residential buildings and administrative buildings; To operate installations using compressed air; in heating networks; as a pipeline for agricultural needs; In the industrial pipeline network.

Consider technical characteristics of PP-R pipes Three-layer fiber-reinforced fiber fiber (PN 20).

Polypropylene tubes reinforced with fiberglass, ideal for systems autonomous heating and hot water supply. However, to maximize the use of the best qualities of this material, you must comply with the manufacturer's recommendations. Also in order to avoid contact of water with a reinforcing middle layer, when installing, you need to use a special coal.

On the Internet, users leave many positive feedback on polypropylene tubes.

The heating system should be performed as much as possible. This applies to all design elements. It is especially important to correctly pick up the pipes for the heating wiring. It is important to consider the category of products and choose the manufacturer. Since companies engaged in the manufacture of polypropylene pipes, quite a lot, should be "put" on the most reliable. Today there is still no single classification of polypropylene pipes. The same models can designate in different ways.

It is necessary to decide in advance with the technical characteristics that polypropylene pipes will be posted. Some designations can still be standard, so you need to decide in advance. For example, polypropylene pipes for heating fiberglass reinforced can be used with certain conditions.

Marking and technical indicators

To understand the difference between polypropylene products, it is worth starting to navigate in stamps and names. Each pipe has a labeling of two letters "PP". In the English-language version, the designation looks like "PP". They can stand other letters or numbers. With the help of such designations, the following materials are called:

It is random-copolymer products that are most reliable when creating a heating system. They are quite safe and differ in excellent quality. They are used in the device of central heating networks. Often they are chosen for installation in private houses. In the latter case, a boiler should be installed on liquid fuel or gas. When installing a solid fuel boiler with overheating protection for wiring of the heating system, a special polymer is used. It is very resistant to elevated temperatures. It is used when heating the coolant to 110 degrees.

In the presence of a solid fuel boiler, not equipped with a system of automation, polypropylene models will not solve high temperatures. At the same time, the wiring is made using copper and steel products. Polypropylene can be used in such conditions only when using liquid heat accumulators.

Important! PPR pipes can be installed in different systems with both cold and hot water.

Particular attention is paid not only to the permissible temperature of the carrier, but also pressure. This parameter is denoted by the PN letters. The numbers that are located immediately behind them denote water pressure that pipe can withstand. This characteristic means that products are capable of exploited with a pressure of more than 50 years. At the same time, the temperature of the medium should be 20 degrees.

When changing the temperature environment or pressure of the coolant, the service life is significantly reduced. For example, if the pipe will be operated at 50 degrees, it will be able to serve only 7-8 years. In addition, the greater the pressure, the more thickness there should be a wall of products. Many pipes are performed with a reinforced layer.

For the heating of private houses, the PN 10 brand is often used. Such products are suitable for systems in which the coolant is moved to 70 degrees. For a short time, they can be operated and when heated heat carrier to 95 degrees. In such conditions, they will serve, of course, not 50 years old, but more than a dozen exactly. The advantages of such models include low cost.

However, they have a substantial minus - they have a significant expansion coefficient. When the pipe will be heated to 70 degrees, each of its meter increases by 1 cm. When installing such products in the clearance wall, while time, the nearby materials will be destroyed. When laying the pipes on top, after time, they will be marked noticeably.

Reinforced polypropylene pipes

For heating wiring, polypropylene pipes reinforced with special materials are often selected. Their marking looks like this - PN 20 and PN 25. Such brands are distinguished by the reinforcing material. If we consider PN 20, fiberglass is used in them. In PN 25, aluminum is used for these purposes. Despite the fact that the strengthening layer in these pipes is performed from different materials, each of the brands is distinguished by a low expansion ratio. However, when using fiberglass, this figure is below 7%, in comparison with foil products.

Best marks are considered to be Banniger and Valtec. The number of fakes of these manufacturers is very large, so when buying products under these brands it is better to be renewed. You should know some signs of the original model. For example, high-quality tube has smooth layers. This indicator is the main one. It is easy to distinguish the original from the fake.

If the reinforced layer is located strictly in the middle of the wall, polypropylene from the inside and outside should have the same thickness anywhere along the length of the pipe. If reinforcement is made of aluminum, the strengthening layer is located a little closer to the outside.

There is another faithful sign that the goods are fake. Most manufacturers use aluminum welding. Such products are characterized by high reliability. However, for the production of such pipes requires expensive equipment. If the seams are performed by braziness, it means there is poor-quality production.

The original pipes inner and outer surfaces are characterized by smoothness. Applied to the surface is quite clear, without defects. It is not lubricated and applied according to the ruler. Some manufacturers of poor quality goods for lack of problems with the complaint about the counterfeit often distort the name. It may not be enough letters, or an excess symbol will be added.

Therefore, to the title on the material it is necessary to look. This will help avoid buying poor quality goods. In general, with an accurate choice of the brand, it is worth visiting the official resource of the manufacturer. This will help to figure out how specifically the original models look like. It is important to look at the surface. It can be both smooth and matte. Special attention is paid to the logo. It is important to learn the range.

Pipes with fiberglass

In the products of the brand PN 20, fiberglass protrudes as the reinforcing layer. This type of pipes were originally made for hot water. Such products perfectly behave and when installing in heating systems. They will be operated too well. However, their service life will be less than 50 years. Quality is usually determined by the price. The best pipes are manufactured by Europeans. This is proven by experience. However, the cost of their products is quite high.

It is worth understanding how polypropylene tubes reinforced with fiberglass are used in heating. It does not matter here, from which material the models are made, and what kind of streaming layer in them. Fiberglass is performed by different colors: green, blue and red. The shade depends on the use of a certain coloring pigment.

If you focus on the appointment of fiberglass pipes, it is important to pay attention only to the shade of the strip located longitudinally. If it is made red, it means the product can be used in networks where hot water is present. If there is a blue strip on the pipe, it is intended for cold water supply. If there are two bands, the pipe can be used in both cases.

Features of using pipes in heating

Products that have fiberglass in their composition can be installed in the heating system when registering certain subtleties. This is due to the main disadvantage of polypropylene products. Material has high oxygen permeability. When the temperature of the medium is significantly increased, many oxygen accumulates in the system. This leads to the destruction of metal parts.

The system should be equipped with high-quality radiators. Then no problems will arise. When installing in iron or poor-quality aluminum radiators, the use of pipes only with a foil layer is allowed. In this case, there will be no free access of oxygen to the radiator.

Important! The permeability depends also on the thickness of the walls, but not too much. The main indicator is the quality of the material.

Most installers advise for heating to use precisely pipes that are reinforced with fiberglass. This is explained by the simplicity of their installation. Installation is twice as fast as in the case of foil products. To get the high quality of the weld in the manufacture of foil products, you will need to remove the foil layer. It needs to spend a lot of time. In addition, such work requires special tools.

In addition, cleaning pipes requires sharp skills. However, when performing high-quality heating in his own house, such subtleties should spend time. Therefore, the pipes with a foil layer of reinforcement should be learn more.

Reinforcement Foil

Reinforced polypropylene products have a standard designation - PEX / AI / PEX. There are two options for mounting a foil layer: exactly in the middle of the wall and closer to the outer edge. The reinforced layer should not be contacted with the coolant. Even water can significantly reduce the life of the product. It contains salts that gradually destroy the metal layer.

When water enters the oxidative reaction with aluminum foil, the latter begins to collapse. After a while, such a pipe will break. For this reason, in almost all such products, the reinforced layer is placed closer to the outside.

If the pipes are located in the floor or mounted into the walls, there may be serious problems, after some time of their operation. Their repair will be performed very difficult. Quite often in the walls of the products there are micropores. Therefore, if there are doubts as a pipe, it is worth mounting them over the walls.

Installation of pipes inside the walls there are another drawback. When welding pipes with fitting, only the upper layer is connected. The pipeline in this case becomes unreliable.