Polypropylene pipes. Types and specifications. Sort of polypropylene pipes How to choose the right line of highway

This article will feature polypropylene pipes for water supply with a description of their basic properties, species and applications. Along with metal-plastic pipes, or the system of heating from polypropylene pipes may not even have professional training person. It is enough to get the necessary minimum knowledge to ensure that the quality and appearance of pipelines in your home, bath or other individual buildings would meet the highest requirements.

Properties of polypropylene pipes for water supply

Recently, the installation of polypropylene water pipes was widespread during the construction of individual houses. This is explained by the availability and low cost of all components, simplicity and reliability of installation, long service life (over 50 years), absence of corrosion and increments, clisply appearance, the possibility of use in heating systems, hot, cold and drinking water supply.

Depending on the modification of polypropylene, three types of pipes are produced:

From homopolymer - pp-h (according to European classification), corresponds to PP-G and PP Type 1 on Russian classification;
From block copolymer - PP-8 (PP-B and PP Type 2);
From the rand of copolymer - PP-R (PP-P and PP Type 3).

According to GOST R 52134 -2003, regulating the use of thermoplastic pipes, all three of the above types of polypropylene can be used in the production of pipes for water supply and heating. Standards of countries such as Germany, United Kingdom are also allowed to use them for pipelines, taking into account all sanitary and hygienic requirements.

In accordance with the purpose of the water supply, the following classes of polypropylene pipes are produced:

Class pipe	Operating temperature MAX, C	Application
		For cold water
		Hot water supply
		Hot water supply
		Low-temperature warm floors
		High-temperature warm floors, low-temperature radiator heating
		High temperature radiator heating

By its structure, pipes from polypropylene are produced from both solid material and reinforced by aluminum or fiberglass. Pipes made from solid polypropylene apply only in hot and cold water supply systems, and water supply fromAnd reinforced can be used in all systems, including radiator heating.

Compared to whole, reinforced pipes have a significantly lower temperature elongation. So, for reinforced fiberglass pipes, it is two times less, and aluminum is four. Aluminum perforated interlayer reliably protects against harmful diffuse oxygen penetration through the pipe walls into the coolant or water. These factors are especially important for heating a closed view with a large length of pipelines, when the amount of oxygen in water can achieve such a value, which damages the sanitary equipment.

As a rule, the pipe marking should contain the internal voltage value in MPa (1 MPa≈10 kg / cm²). For example, PP-R 63, where the number "63" means an internal voltage of 6.3 MPa in a pipe at 20 ˚C, in which the manufacturer ensures that it does not destroy at least 50 years. This property of the polypropylene tube is called minimal long-term strength and is indicated as MRS (Minimum Required Strength). The higher this indicator, the stronger the pipe. Therefore, it is necessary to take into account that incorrectly chosen pipe may not withstand the guaranteed life.

In addition, polypropylene pipes can be divided into the following categories:

	Working pressure, MPa	Application area
		Cold water supply up to +20 ˚C, warm floors up to +45 ˚C
		Cold water supply with high pressure, hot water supply up to +60 ˚C
		Used for cold and hot water to + 80 ˚C
		Reinforced aluminum tube for hot water and heating at a temperature of +95 ˚C

The color of polypropylene tubes does not indicate their technical characteristics and applications. Depending on the manufacturer, it may be:

Gray;
White;
Green;
Black;
With a red stripe.

Selection and use of polypropylene pipes for water supply

The scope of the use of polypropylene pipes in individual houses, baths and economic buildings is extensive - from hot and to the arrangement of systems of radiator and floor heating. With their help, you can connect to pipelines from various materials: steel, copper and metal-plastic. Large service life allows you to put them with confidence in both open and closed systems.

How to choose a pipe from polypropylene

However, it is important to correctly make a choice in an extensive assortment of pipes offered by many manufacturers. Here are some criteria that need to be guided by purchasing:

Pipes must correspond to the parameters of water supply or heating systems;
For high-quality assembly of pipelines, all their components must be from one manufacturer. Only then can we talk about the reliability and durability of the mounted water distribution system;
When buying, be sure to assess the quality of pipes and fittings:

smoothness of the inner and outer surface;
the presence of cracks, chips, bubbles, inhomogeneities of the structure, extraneous inclusions;
the correctness of the geometric form on the outer and internal diameter of the pipe;
lack of different wall thickness.

Considering the fact that polypropylene pipes can withstand the temperature of no more than a minus 20 ˚C, you should ask the seller about the conditions of their storage in the winter season. Improper storage can lead to irreversible processes in the pipe material and, as a result, for marriage in the work done.
If drinking water is provided, it will not be familiar with the certificate of quality for compliance with sanitary and hygienic standards.
In order not to have additional difficulties in assembly work, choose only straight pipes. In stores they are often stored in a vertical position, which leads to bending, sometimes quite significant.
Buy pipes only from well-known manufacturers who have proven themselves from the best side and providing certificates of compliance with the stated quality. For example, in domestic "Synikon", "PD Plast", "Valtec" and "Ikaplast" or foreign "Ostendorf", "Valsir", "FIRAT".

Polypropylene pipes, mm

Note: pN25 pipe is manufactured with a reinforcing aluminum layer, which can be a simple or perforated interlayer with through holes. The perforated layer ensures a reliable connection of all layers without the use of glue. The aluminum layer may be as shifting to the outer surface of the pipe, so symmetrically relative to the inner and outer surface. This affects only the process of assembling pipelines, which will be described in the relevant article.

What the company "Valtec" offers:

What is better - polypropylene or metal-plastic pipes

And in conclusion, a few words in favor of choice exactly Polypropylene pipes for all pipeline systems.

Evgeny Sedov

When the arms grow out of the right place, live more fun :)

Content

Modern, affordable and reliable solution for centralized and decentralized systems - polypropylene pipes for heating (PPR, PPR), conventional or reinforced with fiberglass, aluminum. Such products are characterized by resistance to aggressive substances and chemical solvents, durability, it is not subject to corrosive processes, so polypropylene pipes are so popular for heating.

What is polypropylene pipes

A change in the metal comes a more modern material - polypropylene for heating, which is a kind of thermoplastic polymer. Ten years ago, products were made of pure material and possessed not the best indicators of pressure resistance and high temperatures. Today, the range of polypropylene pipes for heating has significantly expanded, each view has its own technical characteristics.

Views

The characteristics of polypropylene pipes are determined by their type. Initially, PPR products were used everywhere - the simplest systems. The stated lifespan of them is much lower than the stated, due to the temperature and pressure of water, deformation occurred. Manufacturers modified the material and this classification appeared on the consumer market:

PPH (type 1) - homopolymer created for industrial pipelines, cold water supply and ventilation systems;
PPB (type 2) - randa copolymer with polyethylene in the structure that can be used in cold water supply systems and floor heating systems;
PPR (type 3) - polypropylene with ethylene, for which high heat resistance indicators are characterized;
PP-RCT (type 4) is a polymer similar to type 3, but has a denser structure, rejected by aluminum or fiberglass.

Marking

Before buying, carefully examine the marking in the first of them. Products necessarily indicate: PPH, PPB, PPR, PP-RCT. 1, 2 Type is not suitable for heating. Domestic manufacturers label products according to the standards of the GOST class of operation. For the heating system, only 5 class is suitable, and 3, 4 classes are used for the warm floor. Also on the lateral part of the product indicates the working pressure. The designation PN25 indicates that the pipe can withstand 25 atmospheres per day.

Manufacturers

The construction market presents polypropylene pipes for heating from around the world. A huge number of manufacturers and their products can mislead an inexperienced buyer. The choice should not be based on whether the products are cheap or expensive, there are promotions, discounts and sales sales. Purchase should be carried out on the basis of the technical characteristics of the product and reliability of the seller. Czech and German companies deserved special consumer confidence.

Wavin.

Builders and repairmen with a high probability have heard about the high quality of Czech products from Vavin Ecoplastics. These products occupy a leading position in the ratings of Plumbing online stores. Experienced masters know where to order products of this company on catalogs with delivery by mail so as not to overpay. One of the demanded options is the following:

model name: Ekoplastik PN20 25x4.2;
price: 62 rubles per meter;
characteristics: 25 millimeters diameter, service life - 50 years, wall thickness - 4.2 mm, operating temperature - up to 700 ° C;
pros: the presence of an oxygen protected layer;
cons: Withstand pressure only up to 10 bar.

To solve various problems and operating conditions, Vavin company produces several options for its products. With significant loads on the system, experts recommend using the following form:

model name: Ekoplastik PN20 40x6.7;
price: 165 r. / m;
characteristics: Operating temperature - up to 700 ° C, allowable pressure - up to 20 bar, wall thickness - 6.7 mm;
pros: withstands high pressure, suitable for central and local heating;
cons: High cost.

RVK

Polymer systems for heating are a narrow specialization of the Plastic company, producing products under the trademark of RVK. Production is located in Russia, which provides affordable cost of products. RVK is made in accordance with European standards. Raw materials and equipment are covered from Europe.

model Name: PP-Pipe East. reinforcement by aluminum pn25 20x3,4 L2M RVK;
price: 58 r. / m;
characteristics: wall thickness - 3.4 mm, diameter - 25 mm, internal reinforcement by aluminum, marking - PPRC, operating temperature - up to 900 ° C;
pros: High permissible working temperature, withstands high pressure;
cons: When installing requires soldering.

Heating using RVC products is low heat loss due to low thermal conductivity indicators, long service life, minimal pressure losses. The quality of Russian products is provided not only by the relevant standards with raw materials and technologies, but also by specialists who constantly increase their level, adopting experience of colleagues from Europe. Fiberglass reinforced products - it is reliable and inexpensive:

model name: fiberglass reinforced PN25 20x3.4 L2M RVK;
price: 49 r. / m;
characteristics: Operating temperature - up to 900 ° C, wall thickness - 3.4 mm;
pros: affordable price, ability to withstand high temperatures and pressure;
cons: Requires soldering when mounting.

Prices for polypropylene tubes and fittings from the Russian company Pro Aqua are available, while quality remains at the level. One of the main advantages that Pro Aqua products possesses are durability. Under normal operating conditions, the manufacturer promises 50 years of guaranteed life. Resistance to aggressive media, alkalis, high pressure and temperatures are necessary for the use of products for central heating circuits:

model Name: PN25 Stabi. Pro Aqua 20 mm;
price: 83 r. / m;
characteristics: Aluminum reinforcement, pressure up to 20 bar, operating temperature - up to 900 ° C, Operating class - 5;
pros: impact resistance, possibility of flexion, high permissible working temperature;
cons: For mounting, welding needs.

Three-layer polypropylene fiberglass pipes are one of the achievements of Pro Aqua. The main advantage of such products is the low linear expansion coefficient, which is especially important when arranging heating blocks. One of the popular options for fiberglass reinforced, is the following model:

model Name: RUBIS SDR7.4. Pro Aqua 25 mm;
price: 82 r. / m;
characteristics: Nominal pressure - 25.7 bar, operating temperature - up to 900 ° C, Operating class - 5;
pros: Low linear extension coefficient;
cons: With long contact with solar rays, products may occur.

The German company Banninger delivers products for heating and water supply from PP-RCT polypropylene. Banninger polypropylene pipes can be green or white. Products are characterized by high resistance to acids and alkalis. High quality products allows us to use it not only in domestic, but also on an industrial scale. Popularity in consumers won the budget option:

model Name: Banninger PP-RCT PN16 20X2.3
price: 53 r. / m;
characteristics: Operating temperature - up to 700 ° C, operating pressure - 16 bar, wall thickness - 2.3 mm;
pros: Available cost;
cons: low permissible temperature.

There is another option:

model name: Banninger PP-RCT WATERTEC PN20 32X3.6;
price: 180 r. / m;
characteristics: fiberglass reinforcement, working temperature - up to 700 ° C, operating pressure - 20 atmospheres;
pluses: Low linear expansion coefficient, breaking resistance, good thermal insulation qualities, minimizing the losses from the coolant;
cons: low operating temperature.

The German company WEFATHERM is engaged in the production of water supply systems and heating. WEFATHERM feature is the perfect smoothness of the inner surface. Such a property contributes to minimizing pressure loss. Experts argue that for the goods of this company is characterized by excellent resistance to pressure and temperature drops.

For a long period of existence, the company confirmed wear resistance, durability of pipes from the German manufacturer. Special attention deserves the fact that products are resistant to sunlight. For heating systems, it is often used:

model Name: WeFatherm Stabi SDR 7.4 PN 20 32 x 4.4;
price: 440 r. / m;
characteristics: PP-RCT, Operating temperature - 700 ° C, permissible increase - up to 1000 ° C, diameter - 32 mm;
pros: reliability, durability, resistance to chemical substances and sunlight;
cons: High price.

One of the unique developments of WEFATHERM, which is becoming increasingly popular - reinforcement with fiber fibers. Such systems are easy to install, the material is not resolve during operation. For such products, the exceptional smoothness of the inner walls is characteristic. Low thermal expansion coefficient, environmental friendliness, high chemical resistance makes products reinforced with fiber fibers, ideal for heating systems. The only drawback is the price of the German manufacturer's products too high:

model Name: SDR 7.4 Faser PN20 WeFatherm 90 x 12.3 mm
price: 604 r. / m;
characteristics: reinforcement with fiber fibers,
pros: Simplified installation, pipes are not resolve when exposed to high temperatures, the exceptional smoothness of the walls, which provides minimal pressure losses;
cons: Thermal expansion is higher than that of models reinforced with fiberglass, high price.

Heisskraft.

HEISSKRAFT is a Russian company. The manufacturer claims that pipes are made in Germany, but the plant is located in Pushkino Moscow region. Although such a deception of the manufacturer has already ceased to be a secret, PT Heisskraft continues to be popular with consumers, because the quality of the products is at a decent level.

HEISSKRAFT feature is that technical soot is included. The substance has proven itself as an excellent stabilizer for such products, therefore improves the technical characteristics of products.

model name: Kraftstabi S3,2 (SDR7.4) PN16;
price: 52 r. / m;
characteristics: reinforcement of aluminum foil, up to 900 ° C;
pros: affordable price, chemical resistance, when installing, do not use metal fittings;
cons: The process of destruction begins with a long contact with sunlight.

For hot water systems, centralized and decentralized heating, Heisskraft has developed a thermo-stabilized fiber-reinforced fiberglass fiber. Such systems are used in multi-storey construction.

model Name: Festfaser (SDR 6) PN 25;
price: 520 r. / m;
characteristics: PN 25, T MAX 95 ° C, SDR 6;
pros: stability and safety of characteristics with prolonged exposure to hot water, minimal linear extension, the material is not susceptible to bundle, increased strength;
cons: big value.

How to choose polypropylene pipes for heating

In the modern Russian market, polypropylene pipes for heating are offered dozens of companies from around the world. It may be difficult to understand the widest assortment. The main thing is to pay attention to the characteristics of polypropylene and the manufacturer's reputation, because the manufacturer's statement is not always consistent with the real position of things. Before buying polypropylene products, consider the following selection factors:

Operating pressure. The digit in the marking should be slightly smaller than the system is required.
Temperature. The pipe must be designed for hot water, otherwise it cannot be used for heating.
Reinforcement. This factor is not mandatory, but it is better to choose polypropylene products with such an advantage. Reinforcement can be fiberglass or aluminum.
Diameter. The indicator for this parameter cannot be less than the internal cross section of the risers.
Manufacturer. It is important when buying to take into account who produces products. Companies that have long been working in this segment of the market and earned consumer confidence, preferably than little-known one-day enterprises.
Cost. This item does not mean that it is worth sharing at a low price and buy the cheapest products. It is unlikely that the pipe "for three kopecks" will be reliable and durable. Choose the right value of the price and quality so that the products will serve for a long time and withstand all loads.

And the high performance characteristics of polypropylene pipelines in water supply and heating systems are only the upper part of the iceberg. For the correct operation of the mounted communications, it is not enough to choose the type of polymer pipe and buy material in the desired quantity - preliminary design sketches are needed, and in large objects - serious thermal and hydraulic calculations. In order for the heating system to be effective, polypropylene pipes for heating should have a diameter confirmed by these calculations.

Consider the importance of the size of the diameter of the polypropylene pipes during the pipeline device.

Pipe material for communications. What does the pipe parameters affect

Questions how the water supply should look like, which diameter of the pipes should be in the highway feeding heat, are solved at the design of life support systems in the house. As a result, the diameter of polypropylene pipes for water supply may often differ from the identical size of the heating system pipeline, since these communications have a different purpose and therefore are exposed to different factors.

On a note: If in the pipeline of the heating system, the feed water supply rate is less than 0.2 m / s, then the likelihood of the highway is high, and exceeding the feed rate by 0.2 m / s will increase costs for equipment exposed to large loads.

The use of polypropylene products has significantly simplified the work on the equipment of residential facilities with water heating and water supply systems. However, it is necessary to know exactly what type of polymer pipe material is suitable in one way or another. Existing types of polypropylene pipes have different specifications and are designed for a certain use.

The most reliable for the installation of water heating pipelines and the hot water supply system (DHW) of the product of the PN25 or PN30 brand. It is these stamps that are able to withstand pressure up to 25 and 30 atm. Accordingly, at the operating temperature of the coolant 95 0 C. Even short-term operation of such pipes at a water temperature of 120 °es is allowed, since the distinctive feature of these products are thick walls.

Samples of polypropylene pipes reinforced by aluminum.

For cold water, polypropylene tubes with a homogeneous wall are used. For GVS and heating circuit systems, reinforced products are used, since the inclusion in the structure of the polypropylene tube the shell of aluminum or significantly increases the strength of the pipe material and reduces the thermal expansion value.

For reference: The thermal extension is 0.03 mm / m 0 s, whereas for channels with a wall of a homogeneous polypropylene, this value is about 0.15 mm / m 0 C. Based on this, homogeneous products are suitable for cold water supply, and for systems Heating and HBS apply only reinforced polypropylene.

What diameters are polypropylene pipe materials

When choosing components for the device of heating and water supply system, the decisive factors are the temperature of the liquid, the rate of its supply and pressure. The required area of \u200b\u200bthe water supply section is determined with the calculations made in accordance with the scope of application and the operating conditions of the equipment.

Based on the pipe cross section configuration (round ring), its geometrical parameters are determined by outer and inner diameters. The existing classification of polypropylene tubes clearly defines the typical dimensions of each type of pipe products used for installation.

To date, both domestic and foreign manufacturers produce components for pipelines in standard design. Taking into account the practical application, standard engineering and technical solutions have been developed to determine the optimal passage in home heating products and other water communications. Based on the data of the table, it is possible to make the right choice of equipment and components of the thermal highway, without resorting to hydraulic calculations.

As a rule, in the marking there is one of the following values \u200b\u200bof the outer diameter:

16, 20.25, 32 and 40 mm,

which correspond to the internal diameters of PN25 polypropylene pipes:

10.6; 13.2; 16.6; 21.2; 26.6 mm.

For ease of use, the correspondence of diameters and thicknesses of the wall of polypropylene pipes used in heating and water supply systems are reduced to the table:

Table with data on the diameters and thickness of the walls of polypropylene pipes used in everyday life

A reasonable question. Why on finished products the parameters are applied external, if it is so important for the functionality of the size of the internal passage of the pipeline. The fact is that the outer diameter indicates the corresponding type of connection.

The potential for using polypropylene pipes of various outer diameters at the speed of the coolant in the pipeline 0.7 m / s:

the pipe with a diameter of 16 mm is calculated for connecting one or two heating radiators;
the value of 20 mm corresponds to a connection to 5 radiators with a total capacity of up to 7000 watts);
for more radiators (total power up to 11 kW), propylene polymer pipes of the outer diameter of 25 mm are used;
polypropylene tube material with an outer size of 32 mm is designed for equipment of the house as a whole or one floor of the heating system of 10-12 kW of total power (maximum 19 kW);
products with a diameter of 40 mm are used to lay the main pipelines in the residential areas of the large area. Usually it is cottages and country houses, in which the number of heating appliances comes up to 20 pcs., And the total power of all connection points is approximately 30 kilowatts.

The effect of pipe diameter on the operational characteristics of the heating system

The flow rate of the coolant and the volume of the carrier thermal energy directly depends on the inner cross section of polypropylene pipelines. For the clarity of this assertion, the dependence of the heat of thermal energy from the intensity of the supply of coolant and the values \u200b\u200bof the pipeline diameters is reduced to the table:

The selection table of the polypropylene pipe material, depending on the intensity of the supply of heat carrier and the need for thermal energy

Thermal power is indicated in W, the intensity of the coolant supply in kg / s. The calculated data is based on the average temperatures: the coolant supplied in 80 0 s, the returns of 60 0 s, air in the room +20 0 C.

For example: at a flow rate of 0.4 m / s in the pipeline will be transferred the following amount of thermal energy:

for a highway with an outer size 20 (internal section 13.2 mm) the amount of heat is 4.1 kW;
for propylene products Ø 25 and 16.6, respectively, the amount of heat will be 6.3 kW;
propylene pipelines with outer and inner diameters 32 and 21.2, respectively, have a thermal energy supply value of 11.5 kW;
pipe materials in 40 millimeters (the size of the internal lumen is 26.6 mm) will provide heat supply in the amount of 17 kW.

With an increase in the flow rate of the fluid to 0.7 m / s, the intensity of the supply of the coolant immediately increases by 70-80%.

Important! The practical purpose of the table given above is to recommend, based on the value of the required amount of thermal energy, the necessary diameter of the pipe during the selection of pipe materials for the housing heating system.

Consider a visual example:

There is a typical house with a useful area of \u200b\u200b250 m 2. The structure is sufficiently insulated and to create normal living conditions needs heating at the rate of 1 kW per 10 kV. m, that is, it is enough to create a comfortable temperature in the house there will be 25,000 watts of thermal energy (maximum).

On a note: For the first floor, more heat is always required - approximately 2/3 of the total consumed quantity.

Thus, out of 25 kW heating of the first floor will require 15 kW, the second is 10 kW.

The house is equipped with an autonomous heating system based on a double-circuit boiler. The radiators installed in the rooms are connected in parallel. The house has a layout of two wings, with equal thermal power. On the first floor, the power for each wing is 7,500 watts. For the second floor, both wings require 5000 watts.

Two-storey house with water heating system based on autonomous boiler - in context

The boiler gives out for heating at home 25 kilowatt thermal energy. It means that the thermal mains must be used by polypropylene pipes and the internal diameter accessories of 26.6 mm (with a feed rate of 0.6 m / s). This value corresponds to the outer diameter of the pipe of 40 millimeters.

For the supply of branches on the first floor it will take 1500 watts heat. Using data from the table, we get the following:

at a flow rate of 0.6 m / s, the optimal diameter of the inner lumen of polypropylene pipes will be 21.2 mm - the identical idter parameter according to the table is 30 mm;
for each wing, a pipe material with an inner diameter of 16.6 mm is suitable, which corresponds to Ø 25 mm of the external contour of the cross section of polypropylene pipes.

Now consider the procedure for connecting heating devices.

Water heating radiators on average have a capacity of 2 kilowatta, so theoretically, pipes with a minimum value of the outer diameter - 16 mm (PN16) are suitable for their inserts into the circuit. However, in practice, it is recommended to use polypropylene products with an internal section of 13.2 mm and an outer diameter of 20 mm (PN20), since the use of PN16 polymer pipes is recognized as inexpedient due to low technological.

The second floor is equipped with a pipeline cross section of 32 mm. For each wing, pipes and connecting hardware Ø25 mm are used. With radiators, the same picture as on the first floor - the battery connection is performed using PN20 pipes.

Conclusion

Based on the example above for each section of the pipeline in the heating system, it is possible to choose the components of the required diameter - including this will depend on the efficiency of the heating equipment.

It should be remembered that the materials for the pipeline in the heating system are selected with the calculation of compliance with the maximum technical characteristics of the autonomous boiler, despite the fact that in most cases the unit will operate in normal mode - in accordance with the specified parameters of operation.

Polypropylene pipes (PP) among specialists today are considered to be the best pipe products. They have good technical and operational characteristics and differ in their appointment, color, quality and scope of application. They are used for laying, both domestic and outdoor engineering communications.

Marking of polypropylene pipes

When choosing polypropylene products, attention primarily draw a marking applied to them. This is explained by the fact that the technical characteristics of different modifications may differ significantly. For example, not any polypropylene tube is suitable for systems operating at high temperatures and elevated pressure.

The current classification of polypropylene products now implies their division into 4 groups. Their marking consists of two Latin Pn letters and two digits that make up a number denoting the pressure to which PP pipes are calculated.

These values \u200b\u200bare applied to the surface of the products:

PN10.. If the system is designed from products of this group, it is able to withstand pressure not exceeding 10 atmospheres. In this case, the maximum temperature mode of the working environment cannot be over 45 degrees Celsius. Using pipes of this type, there are communications capable of transporting exclusively cold liquids. Since this pipe product has thin walls, it has not received widespread use in the device of internal water pipes.
PN16.. The presence of such characters means that polypropylene pipes withstand the pressure of no more than 16 atmospheres and fluid can be moved, in which the temperature does not reach 60 degrees. These products use for laying cold pipelines. The products of the PN16 group have a high deformation indicator under the action of high temperature, which is unacceptable when creating pressure pipelines that provide hot water supply or heat supply.
PN20.. As such marking is evidenced, pipe products withstands the pressure of about 20 atmospheres (read also: "What does the marking of polypropylene pipes mean - reading features"). It can move hot water having a temperature of up to 95 degrees. The technical parameters of polypropylene pipes of this group allow them to be operated in hot water supply systems. Currently, they are practically not used due to the occurrence of significant deformation in the heating structures of the pressure type. When moving along such a PP tube under high pressure fluid having an extremely allowable temperature, the product begins to lead and bend.
PN25. Pipes made of polypropylene with this labeling are full-fledged products for laying heating systems. They do without problems keep pressure in 25 atmospheres. When they are produced, a composite material is used together with reinforcing inserts made from kapron fiber or aluminum foil. The layer of them lowers the temperature deformation and increases the strength of the pipes. PP products with labeling PN25 are widely used in pressure pipelines. The heat loss in them is less than 2 times compared to other types of pipes.

Advantages and disadvantages of polypropylene products

It is the properties of polypropylene pipes that make them in demand among developers, both multi-storey buildings and small country households.

Among the positive features of polypropylene products should be noted:

A long service life, which is about 50 years. When pipes use in cold water systems, according to manufacturers, they can be operated up to 100 years.
Solid deposits are not assembled on the inner surface of the products, since a special processing technology is applied at the production phase.
Lack of condensate and frost resistance due to low thermal conductivity.
The low weight of the polypropylene tube, which is 9 times less than that of metal products.
Easy installation and transportation.
Anticorrosive stability.
No additional service required.
Resistance to the action of aggressive chemical media.
Elasticity.
Inexpensive cost. You can buy pipes of different price categories.

In addition to the advantages of polypropylene pipes have drawbacks:

High degree of linear expansion. If the PP products are not reinforced, during installation you need to use special compensators.
Insufficient heat resistance. Regardless of the choice of type of pipes, it is necessary to insulate them, especially it concerns the arrangement of heat supply systems.
To change the direction of the pipe laying, the use of special fittings will be required.
Bad resistance to straight solar radiation. Its negative impact can cause aging material and thereby reduce the service life of polypropylene products.

Since the degree of linear expansion is sufficiently high, when installing the pipeline, it is impossible to allow SP pipes - for this point of attachment on the wall should be located with small intervals.

The process of selecting polypropylene pipes

To make it easier to select these products, you should consider four important points in addition to the product labeling, which was described above:

Maximum allowable temperature. It has already been said that for the heating systems, the best choice will be products having PN25 characters for hot water supply - PN20 and for cold water supply designs - PN16.
Diameter. Select the section taking into account the technical parameters that should be at the pipeline. The optimal choice for wiring in apartments is the pipes, in which this parameter is 20 or 25 millimeters, 32 or 40 millimeters are 32 or 40 millimeters. PP The pipe of a large diameter with thick walls is used for laying trunk pipelines, which are located in the basements of apartment buildings.
The magnitude of the maximum permissible pressure. If we are talking about domestic use, then all pipes are suitable, including the PN10 products. The duration of their service is directly related to pressure in the highway and the temperature regime of the working medium. For example, if the fluid temperature holds for a long time at a mark of 95 degrees, at a constant pressure, the products will serve not more than 5 years, and if the water temperature is about 20 degrees and pressure 10 atmospheres - almost 50 years.
Temperature expansion coefficient. Polypropylene products are distinguished by the ability to change its geometry under the condition of transporting water having a high temperature. These changes refer to the thickness of the pipe walls, and this is very critical for the throughput of pipelines.

Products with marking PN20 Specialists are not recommended to be laid by a closed method, because as a result of their deformation in the layer of plastering, cracks will appear. As for the use of PN25 products, it can be mounted in both ways - open and closed.

The open option will not worsen the interior of the room, since the PP tube reinforced well holds the form and it will not be necessary to bend it. Thus, the method of laying a hot water supply system depends on the coefficient of linear expansion of pipe products from polypropylene.

In the world market, PP pipes are presented in the next high.

PPH - Type 1. These products from polypropylene are considered the most simple from the entire range of products manufactured by the modern industry. Their scope of application is a gasket of cold water supply, ventilation systems, industrial pipelines.

PPB - Type 2. This type of pipe polypropylene rolled steel is made from a complex block copolymer. Such products are involved in the arrangement of pressure systems for the supply of cold liquids and heat supply. Also, this product is used in the production of shock connective elements with high strength.

PPR - Type 3. The technical characteristics of the PPR pipe are based on the production of copolymer by rand. Its introduction to industrial production has been world importance. Initially, he had a PPRC abbreviation - a copolymer polypropylene by random, in the future it was reduced to PPR. From products related to this species, the water supply systems of cold and hot-type are laid. It is this product that will be involved when creating a warm water floor.

Such a molecular structure provided the following characteristics of the PPR pipe:

the highest strength and heat resistance compared to other types of polypropylene;
chemical resistance to different acids and alkalis;
unlike PPH and PPB products, this material is able to withstand the temperature mode of the working medium in short and up to 140 degrees and in constant mode almost up to 90 degrees;
frost resistance - products completely restore its shape after the effect of negative temperatures on them.

The technical characteristics of polypropylene PPRC pipes made their alternative to galvanized metal products. Among them are products that are reinforced by aluminum or fiberglass.

PPS - Type 4. The raw material for the release of this product is complexly flammable high-strength polymer. The maximum permissible temperature of the working medium of these PP pipes is 95 degrees. Experts consider them the best option of unarmed single-layer products for heating systems.

Polypropylene pipes

Polypropylene tube rental is released in four color solutions.

Description of polypropylene pipes of different colors will help make the optimal choice:

White PP products. They are used in the device of water supply systems. They are easily mounted by welding, so work can be completed in the shortest possible time. White propylene pipes are not recommended to operate in street conditions and at low temperature. Transport products should be extremely careful, since any physical or mechanical impact on them may cause damage. PP tube has many advantages: long service life, the ability to maintain pressure 25 bar, corrosion resistance, available cost.
Gray pipes. These polypropylene products are often used when laying water pipes and individual, centralized heating systems. Their main technical characteristics: thermal and chemical stability, long-term operation, environmental friendliness, tightness, etc. They are reliably connected using a soldering iron.
Black PP Pipes. Experts recommend to use them when arranging sewer communications and drainage designs. In the manufacture of this product, special additives are used, which improve their technical parameters. Black pipes have several advantages: resistance to UV radiations, various aggressive media and drying; High strength.
Green polypropylene products. The pipes of this color are chosen to install irrigation systems and watering the household territory. They cost in an inexpensive and therefore the owners of cottages and gardens prefer not to pay attention to their low strength characteristics. Green PP pipes react poorly to physical impact, including pressure in the system. After installation during operation, it is necessary to regularly monitor the state of communications, since the risk of a breakthrough of the pipes is quite large.

Corrugated polypropylene pipes

Use this type of pipe products to create engineering communications on drainage and sewerage, as well as structures for disposal of precipitation and groundwater. The maximum permissible temperature of the fluid, which moves along corrugated PP pipes, is for permanent drains + 60 degrees, and for short-term no more than 100 degrees.

Pipelines that build with the use of corrugated products are mounted in open trenches and a trenchless gasket method. Transitions are shut-off using reinforced concrete wells. No additional equipment and special equipment are required for laying a large diameter corrugation.

Now industrial enterprises have mastered the production of two-layer corrugated pipe products from polypropylene.

Their positive qualities are:

long operational period;
good bandwidth;
resistance to corrosion and aggressive chemical compounds;
increased ring rigidity;
the presence of dielectric properties providing confronting the impact of wandering currents;
resistance to the hydroabrasive type of wear.

Among the disadvantages are exposure to accelerated aging.

Polypropylene pipelines welding technology

In the process of installing the system of pipes made from polypropylene, the thermal polyfusion method is used - the welded parts are heated and quickly connected using a soldering iron.

Some manufacturers equip the tool for welding two, and not one heating element. In this case, the power becomes enough to heat the segments of the pipes of different diameters without any problems.

But this advantage can simultaneously become a disadvantage. The heating is performed at once with two elements capable of overlaying plastic and overload the power supply network. For this reason, the second heater should be used only as a spare when the first fails.

The duration of the heating stage depends on a number of factors:

tube diameter;
ambient temperature, which should not deviate from the norm;
size welding belt.

After heating, polypropylene retains its plasticity for a short period of time. In seconds, it is required to fix the connection, not allowing the appearance of overcasts. The optimal temperature for heating is + 260 degrees.

To ensure a reliable and durable compound, the polypropylene needs to warm up much, but the excessive heating is able to lead to the loss of the shape of the product. Therefore, the time should be controlled during which welding is performed.

Depending on the cross section of PP pipes, it should be:

with the size of a diameter of 20 millimeters - 8-9 seconds;
when welding products with a diameter of 25 millimeters - 9-10 seconds;
when connecting parts with a diameter of 32 millimeters, 10-12 seconds.

It is not enough to heat and connect pipes from polypropylene, they should still be able to cool. The period of fixation in time should last as much as the heating phase. If the execution of this process, as a result of the rush, complete earlier, the compound will exploit.

The technology of performing welding PP pipes refers to difficult work. Not only the heating time has great importance, but not compliance with the rules for performing soldering.

The main nuances of the process are as follows:

During operation, the welding machine must be kept to be kept on.
Markings should be applied to the surface of the pipes that will provide the required depth of welding seams.
Connected parts need to be heated at the same time.

Most developers, having familiarized themselves with the advantages of polypropylene tubular products, stop the choice on these products. Finance, spent on the purchase of PP pipes, will surely pay off over time.

Polypropylene Pipe: Polypropylene PPR, Specifications, PPR Weight, Parameter, Properties, Description

Dimensions and classification of polypropylene pipes

Polypropylene pipes are manufactured according to GOST and their dimensions are regulated by the standard. The diameter of the inner highways is from 10 to 1200 mm, the wall thickness depends on the structural features. Classified: in the composition of raw materials, pressure, appointment.

Manufacturers produce polypropylene pipes of different diameters

Polypropylene pipes are conquered by new spaces every year - they are used in many industries: mechanical engineering, agriculture and, above all, in heating, water supply and sewage systems. The dimensions and configuration of PP pipes are regulated by GOST. Products are divided into types depending on the qualitative composition of raw materials, namely on the degree of modification of the main polymer with various additives.

Classification of polypropylene pipes in the composition of raw materials

PPR (PPRC, PPR) - Products of this type are made from a static copolymer of penprovene (or random copolymer) with a crystal structure of molecules. Resistant to temperature fluctuations from -170 to + 1400s, shock loads, so widely used for the device of sewage, water supply and heating. They are considered the most demanded material for household construction. The dimensions are in the range of 16. 110 mm and are subclusional by pressure to which they are calculated.
PPH products. Made from raw materials with the addition of modifying additives: antistatic, antipyrins, nucleators, which give increased impact strength to the polymer. Products of this type are used for the device of external cold water supply, ventilation and drainage. For heating systems, they are not suitable, since they have a low melting point. The diameters of polypropylene pipes RRN are usually large, since most often they are used in the device of industrial sewage and drainage.
PPB (block copolymer). The structure of this type of raw material consists of a micromolecule of homopolymer (blocks), which differ in structure, composition, and alternate among themselves in a certain order. The final product of this type due to the molecular structure acquires increased impact resistance and is used for floor heating systems, cold water supply.
PPS (polyphenylsulfide) is the highest-class polymer with a special molecular structure. It has increased resistance to loads and heating, improved wear resistance indicators, strength. The diameter of the pipes from the polypropylene of this type is from 20 to 1200 mm. Scope of application - ventilation, hot, cold water supply, heating.

Pressure classification

In the marking of PP products, the designation N25, N10, etc. This indicator makes it possible to assess the stability of the material to the pressure of the liquid passing through the highway.

The following types of polypropylene pipes distinguish:

N10 (PN10) - with a working pressure on the wall of 1.0 MPa and a polymer thickness of 1.9 to 10 mm. Used to arrange warm floors, cold water supply with heating to +45 degrees. The diameter of polypropylene pipes of this type: outer - 20 ... 110 mm, internal - 16 ... 90 mm.
PN16 - rarely used type of products with a pressure on the wall of 1.6 MPa. Suitable for the supply of cold and hot water with heating fluid to +60 degrees.
N20 (PN20) - highways from polypropylene with a working pressure on the wall 2.0 MPa and a thickness of 16 ... 18.4 mm. The most popular material for the device of hot and cold water supply with fluid heating temperature up to 80 degrees. Execution: Outer diameter - 16 ... 110 mm, internal - 10.6 ... 73.2 mm.
N25 (PN25) is a polypropylene tube with a working pressure on the wall of 2.5 MPa and the reinforcement of aluminum foil. Ideal for heating systems, hot water supply with a temperature of the coolant to +95 degrees. Due to the multi-layer structure of this type of product, they have increased resistance to shock, thermal loads. Execution: the inner diameter of polypropylene pipes PN25 - 13.2 ... 50 mm, outdoor - 21.2 ... 77.9 mm.

Currently, there is a reinforcement of a fiberglass polypropylene highway. This avoids the separation of hydroflows during operation, and during installation - the loss of time to stripping sections during welding. Systems with reinforcement of fiberglass mesh are most preferable, as they provide quick installation, deformation resistance, increased service life without repairs.

From which the size of polypropylene pipes depend

What are the diameters of polypropylene pipes? Parameters depend on the temperature and volume of the transported fluid, its pressure on the walls. First of all, the product configuration is selected depending on the purpose. For each type of classification, there is a table of the size of polypropylene pipes, according to a suitable product.

What are the sizes of highways? The physical parameters of sewerage systems, heating, water supply directly depend on what they are intended for. The diameters of metal and polypropylene pipes differ slightly, but in favor of the latter. Plastic parameters - less, and the service life is significantly larger. In addition, the polymer wins the aesthetic properties and corrosion resistance.

The diameter of the PP tube is selected according to the results of the calculations of the lifeline. When choosing steel, copper, polymeric products, you should carefully treat marking - some types are denoted by internal diameter, and some are external. In the labeling of polymer pipes, diameters are indicated only by external.

How to choose the right size of the highway

The inner diameter of polypropylene pipes seload by elementary calculation with the source data:

the speed of the fluid movement on the highway;
water consumption.

The diameter of polypropylene pipes for the water supply of a private house or the mansion is calculated by the formula:

where V is the speed of the passing flow, m / s (taken from 0.7 ... 2 m / s);

π - the number of pi, equal to 3.14.

The diameter of pipes for the private house water supply in practice is taken by 20 mm by default. For a multi-storey building at each stage of construction, various diameters of polypropylene pipes are used on the basis of a refined calculation: for the flow of water into each apartment, each entrance, to the house, quarter, microdistrict uses various highways. Accordingly, the higher the water consumption, the larger sizes are accepted.

In practice, the following sizes of polypropylene pipes in MM are used in multi-factor houses:

for risers of 5-storey buildings Ø25 mm;
wiring indoors - diameter is taken 20 mm;
for standing houses of houses 9 or more floors, polypropylene pipes with a diameter of 32 mm are accepted.

Polypropylene pipes - sizes, table

Polypropylene polypropylene pipes are used in organizing water supply, heating, sewage to homes, residential neighborhoods, public buildings, sports complexes, hotels, for industrial needs. For example, pipes for water supply with a diameter of 500 mm are used for the supply of cold drinking water from cumulative pools to the areas of the metropolis. For the transfer of heat carrier PP pipes of large-sized is not used due to a high heat load, which contributes to the softening of polymer highways.

For ventilation systems and drains of industrial structures, polypropylene pipes are used, the dimensions of which exceed Ø400 mm.

For independent installation of heating, water supply and sewage systems in a private house or apartment, it is important not only to choose the right sizes of highways, but also to connect them correctly. This requires special welding equipment, some skill and ability to use it. Therefore, it is better if professionals will be engaged in the design of communications and their gasket.

In the article, we briefly described the classification and the main parameters of polypropylene plumbing highways used for the device of external and internal heating, sewage, ventilation, water supply. The range of products of various diameters and destination allows you to implement complex construction objects, perform the strapping of DHW, HPW and heating aesthetically, quickly, reliable.

Polypropylene pipe diameters: dimensions in mm, table, internal diameter of PP pipes

Polypropylene pipes for water supply and heating

This article will feature polypropylene pipes for water supply with a description of their basic properties, species and applications. Along with metal-plastic pipes, the inner water supply or heating system from polypropylene pipes may not even have professional training person. It is enough to get the necessary minimum knowledge to ensure that the quality and appearance of pipelines in your home, bath or other individual buildings would meet the highest requirements.

Properties of polypropylene pipes for water supply

Depending on the modification of polypropylene, three types of pipes are produced:

From homopolymer - pp-h (according to European classification), corresponds to PP-G and PP Type 1 on Russian classification;
From block copolymer - PP-8 (PP-B and PP Type 2);
From the rand of copolymer - PP-R (PP-P and PP Type 3).

In accordance with the purpose of the water supply, the following classes of polypropylene pipes are produced:

Operating temperature MAX, C

By its structure, pipes from polypropylene are produced from both solid material and reinforced by aluminum or fiberglass. Pipes made from solid polypropylene are applied only in hot and cold water supply systems, and water supply from water sources, and reinforced can be used in all systems, including radiator heating.

Selection and use of polypropylene pipes for water supply

The scope of the use of polypropylene pipes in individual houses, baths and economic buildings is extensive - from hot and cold water supply to the arrangement of radiator and outdoor heating systems. With their help, you can connect to pipelines from various materials: steel, copper and metal-plastic. Large service life allows you to put them with confidence in both open and closed systems.

How to choose a pipe from polypropylene

However, it is important to correctly make a choice in an extensive assortment of pipes offered by many manufacturers. Here are some criteria that need to be guided by purchasing:

Pipes must correspond to the parameters of water supply or heating systems;
For high-quality assembly of pipelines, all their components must be from one manufacturer. Only then can we talk about the reliability and durability of the mounted water distribution system;
When buying, be sure to assess the quality of pipes and fittings:

smoothness of the inner and outer surface;
the presence of cracks, chips, bubbles, inhomogeneities of the structure, extraneous inclusions;
the correctness of the geometric form on the outer and internal diameter of the pipe;
lack of different wall thickness.

Considering the fact that polypropylene pipes can withstand the temperature of no more than a minus 20 ˚C, you should ask the seller about the conditions of their storage in the winter season. Improper storage can lead to irreversible processes in the pipe material and, as a result, for marriage in the work done.
If drinking water is provided, it will not be familiar with the certificate of quality for compliance with sanitary and hygienic standards.
In order not to have additional difficulties in assembly work, choose only straight pipes. In stores they are often stored in a vertical position, which leads to bending, sometimes quite significant.
Buy pipes only from well-known manufacturers who have proven themselves from the best side and providing certificates of compliance with the stated quality. For example, in domestic "Synikon", "PD Plast", "Valtec" and "Ikaplast" or foreign "Ostendorf", "Valsir", "FIRAT".

Polypropylene pipes, mm

What the company "Valtec" offers:

What is better - polypropylene or metal-plastic pipes

And in conclusion, a few words in favor of choice exactly Polypropylene pipes for all pipeline systems.

There was a time when I used copper, and steel, and metal-plastic pipes. Until I learned about polypropylene, and did not spend from them in my bath and house, and heating, and cold, and hot water. Not a single marriage in connections! The work is clean, fast, reliable, "without noise and dust", in one word, pleasant in all respects. The cost of fittings and pipes themselves, compared with other species, funny. It is not necessary neither pipe bending, nor gas waken, nor propane, nor other expensive tools and materials.

Just needed - a special welding machine and cutter. Although you have to sacrifice your money on their purchase, but it is not comparable to those costs that will be on the installation of pipelines from other materials, especially copper. And the purchased tool is always useful when repaired or upgrading pipelines not only in the bath, but also in your home. However, it is better to choose - polypropylene pipes for water supply or any others - to decide yet.

Polypropylene pipes for water supply and heating, let's go

This article will feature polypropylene pipes for water supply with a description of their basic properties, species and applications.

Polypropylene pipes. Types and specifications

Not everyone knows that at present there are many types of polypropylene pipes, characterized by technical characteristics, quality, appointment and color. But these products are increasingly used to arrange domestic water supply networks, and, practically, the steel counterparts were supplanted. On their basis, you can create engineering communications with an increased working environment - hot water supply and heating systems.

Today, quite a few types of polypropylene pipes are made for use in a variety of spheres.

Marking of polypropylene pipes

The first thing to pay attention to when selecting these products is what they have labeling. The fact is that the technical characteristics of polypropylene pipes differ from the modification to the modification. And this factor imposes significant restrictions on the scope of their application. In particular, not all of them are capable of working at a considerable pressure and high temperature.

The existing standardized classification of polypropylene pipes is divided into such products into 4 groups. Their designation contains Latin listers PN and two digits. This number displays, for which the pressure is calculated pipes from polypropylene.

PN. 10. Systems collected on the basis of products of this http://trubamaster.ru/vodoprovodnye/prokladka-polipropilenovyx-trub.htmlgroups, withstand pressure up to 10 atmospheres. The answer to the question about the maximum temperature of the working medium is unambiguous: + 45˚С. These numbers are indicated on the surface of the pipes. With the help of pipe products of this type, we create communications for transporting only cold liquids. The main difference is thin walls. "Thanks", the technical characteristics of the PN10 polypropylene tubes are not widely used for laying the pipeline in apartments.

PN.16 . Polypropylene pipes designated by such a sequence of characters withstand pressure up to 16 atmospheres, you can transport liquid with a temperature of + 60 ° C. These polypropylene pipes can be chosen solely for "cold" highways. In addition, it is inherent in a rather high temperature deformation coefficient that in the pressure pipelines of heating and hot water supply is unacceptable.

Determine the type and purpose of the pipe can be labeled on its surface.

PN. 20. What pressure will endure the pipe from polypropylene, in the designation of which there is a combination of symbols, we already know - 20 atmospheres. And the water temperature + 95˚ is not terrible. The technical characteristics of PN20 polypropylene pipes allow them to use hot water supply.

Important! Due to considerable temperature deformation in pressure heating systems, they are currently not used. When a high pressure fluid is transported under such a pipe with a temperature approaching extremely permissible, it behaves and bends.

PN.25. These are already full-fledged pipes for heating from polypropylene. The temperature of the coolant can reach + 95 ° C. The answer to the question of which pressure is holding a PN25 polypropylene tube, is clear - 25 atmospheres. As a raw material, a composite material with reinforcing inserts is used. Such may be a drop-in fiber or aluminum foil. Both types of layers not only improve the strength characteristics of polypropylene pipes, but also reduce the temperature deformation. Even during the transportation of water with a maximum permissible temperature under high pressure, their linear dimensions will not change. Therefore, reinforced products were widely used in pressure pipelines. Another important factor: compared with a thick-walled pipe from polypropylene, installed in similar highways, heat losses in metal-plastic products are two times lower. But in terms of frost resistance, these types of pipes are comparable.

Pros and cons of polypropylene pipes

The technical characteristics of the polypropylene tube, which made it one of the most sought-after types of building materials, are due to the amazing properties of this polymer.

One of the advantages of polypropylene pipes is the installation: with a fairly simple technology, a solid and durable connection is obtained

What features of polypropylene pipes allocate experts? There are several of them:

service life of about 50 years. And when used only in cold water supply, according to manufacturers, all 100;
prevent the formation of solid deposits. Such a characteristic of polypropylene pipes is due to the application at the stage of production of a special technology for the processing of the inner surface;
noise isolation. This property is even inherent in a polypropylene pressure pipe, in which the movement of high-pressure fluid can cause vibrating and rumbling noises unpleasant for the human ear;
lack of condensate. Due to this low thermal conductivity of polypropylene pipes;
low weight. The value of this characteristic of the polypropylene tube is 9 times less than the value of a similar parameter of the metal product;
ease of installation. But if you took up this case for the first time, you should listen to the advice of professionals. In particular, pay special attention to the time of heating of polypropylene pipes when combined with welding;
do not need additional maintenance;
resistant to the effects of chemically aggressive acid-alkaline compounds;
high elasticity;
available cost. Select such products can be selected in any price range.

Not the last role in high demand, taking into account the characteristics of the climate of our country, the frost resistance of pipes from polypropylene caused by their low thermal conductivity plays.

Polypropylene pipes are resistant to low temperatures, and for their storage and operation does not require special conditions.

Above the pluses of polypropylene pipes were indicated. But, as always, without minuses here either does not do. The main ones are:

Highly high linear extension. Pipes unarmed from polypropylene during installation require the use of special compensators.
Low heat resistance. Regardless of which polypropylene tubes are selected, it is necessary to immediately find the insulation. This is especially true for heating systems.
Bad deformation ability. Change the direction of the pipe without using additional fittings is impossible.
Weak resistance to straight sunlight. Although the achievement of the maximum temperature for polypropylene pipes does not cause this phenomenon, but it is accompanied by premature accelerated aging of the material.

Tip! Taking into account the expansion factor when installing the pipeline, guide the special installation rules. In particular, do not allow pipe sagging - for this you need to place the fastening points on the wall with small intervals.

How to choose polypropylene pipes

For the correct selection of these products, five moments must be taken into account. The marking of polypropylene tubes has already been discussed, so there are 4 important factors.

Maximum temperature. The choice should be done based on the intended value of this parameter of the coolant, taking into account the labeling of polypropylene pipes. As mentioned above, PN25 is the best choice for heating systems, PN20 - for hot water, PN16 - for cold water supply systems.

The usual home water supply can be mounted from a small diameter pipe.

Diameter. It is necessary to select it, taking into account the technical characteristics of the pipeline system being created. The best polypropylene pipes for the apartment wiring are products with a diameter of 20 and 25 millimeters. For risers, it is better to use products with a cross section 32 or 40 millimeters. The thick-walled polypropylene tube of large diameter is used for the main pipeline mounted in the basement of the apartment building.

Maximum allowable pressure. If we talk about use in everyday life, almost all types of pipes are suitable, including the product of the PN10 brand. As the service life is connected with pressure and temperature, consider on the example of this pipe.

water temperature is 20 ° C. Service life will be at least 50 years, if the pressure in the central highway does not exceed the mark in
50 ° C water temperature. In this case, that the service life is 50 years old, it is necessary to withstand pressure not exceeding;
sea temperature 70˚С. The service life will be equal to the declared manufacturer at pressure;
the water temperature is long held at 95˚ C. In this case, the service life of 50 years cannot be speech. Maximum is some kind of 5 years at constant pressure.

Temperature expansion coefficient. We already know that polypropylene pipes are such products whose geometry changes at high temperature of the transported fluid. Changes relate to the thickness of their walls. And this is critical for such a parameter as the throughput capacity of the pipeline.

PN20 type closed package is not recommended. After all, its deformation can cause cracks in the layer of plaster. But the use of polypropylene pipes like PN25 allows you to lay and closed and open. In the latter case, the interior of the residential premises will not deteriorate due to the absence of bending of these products. After all, the pipe reinforced from polypropylene is perfectly holding its shape.

Important! The characteristic of polypropylene pipes "Line Expansion Coefficient" determines which method of gasket hot pipelines should be selected.

As for the service life of polypropylene pipes, then with proper use, each of them will last at least five decades.

Water pipe, laid inside the walls, will not spoil the view and style of the bathroom, but for this method of gasket you need to choose strong pipes

Assortment of polypropylene pipes

This world market segment is represented by the following varieties of polypropylene pipes:

PPH. These are the simplest polypropylene products and all those that only produces the modern industry. They are intended to create cold water supply systems, industrial pipelines, as well as ventilation systems;
PPB. Such a kind of tubular rental is made from a complex polypropylene block copolymer. These products have found applied in pressure systems of cold water and heating. But they are used not only as pipes of pressure from polypropylene. It is made of high-strength shock connecting elements;
PPR. For production, polypropylene randomsopolymer will be applied. Based on this type of pipes, systems such as hot and cold water supply, including water warm floors, are created;
PPS. This is a separate type of pipe rental sorting, as raw materials, a complicated high-strength polymer is used as raw materials. The working maximum temperature of PPS polypropylene pipes is + 95˚С. According to experts, this is the best single-layer (unarmed) product for heating systems.

Color of polypropylene pipes

Polypropylene pipe rental is represented by four colors. They are white, gray, black and green. Based on white or gray polypropylene pipes, various engineering communications are mounted, ranging from water supply and ending with an individual heating system.

Each type of pipes has its own color or labeling strip on the outer surface.

However, the disadvantage of white pipes is the impossibility of exploitation in the conditions of the street, since such products are characterized by low frost resistance. Already at a temperature of 0 ° C, the type of polypropylene is used for their manufacture begins to crystallize.

Helpful information! White pipes withstand pressure 25 bar! At the same time, the gray polypropylene pipes are inherent in the best tolerability of thermal loads.

Gray pipes also possess the following advantages:

the possibility of operation in pressure systems;
thermal and chemical stability;
long operational period;
environmental friendliness;
tightness.

In addition, gray polypropylene tubes are perfectly connected by a regular soldering iron.

From the existing data sorting product to create sewage, as well as drainage systems, it is recommended to use black pipes from polypropylene. Improved in the raw material production additives increase their technical capabilities. Of the advantages of plastic black tubes it is worth highlighting:

resistance to various aggressive environments;
impotence of UV radiation;
high strength;
the resulting service life is fully maintained.

Currently, many country owners are interested in the question of which polypropylene tubes are the best for watering. The answer is unequivocal: green. They are sold at such a low price that gardens simply may not pay attention to the strength characteristics of these products.

Polypropylene corrugated pipes

Such products of large diameter are used to build wastewatering systems, sewage, removal of rainfall (livnevka) and groundwater (drainage).

Polypropylene corrugated pipes are used in a variety of spheres - small diameter in demand for gasket power grid

Estimated for a polypropylene corrugated pipe Maximum value of the temperature of permanent drainage - order + 60 ° C, and short-term up to + 100 ° C., which is rare. Pipelines created on the basis of this product, trenchless gasket and in open trenches, and the organization of transitions is carried out with reinforced concrete wells. Moreover, no other structures, as well as special equipment for laying and installing corrugated steel diameter is not required.

Modern enterprises have currently mastered the production of two-layer corrugated pipes from polypropylene. Of their advantages, it is worth highlighting:

high ring rigs;
chemical and corrosion resistance;
confront the impact of wandering currents. Dielectric properties are beneficially distinguished by product data from metal analogues. After all, those being laid near the cable trails, due to the effects of electrochemical corrosion are subject to accelerated aging;
high bandwidth;
increased resistance to hydroabrasive wear;
long service life.

Features of welding polypropylene pipes

To weld products of this type, a method of thermal polyfusion is used. It consists in heating the welded parts followed by their rapid compound. This procedure is performed using a special soldering iron. Some manufacturers of such tools equip them at once with two heating elements, the power of which is enough to heat the pipes of a particular diameter. It would seem that this is a plus. But not in this case.

For high-quality connection of pipes using the thermal diffusion method, special equipment and clear observance of welding technology will be required.

Important! The heating simultaneously with two elements is able to overheat plastic and cause power overloading the power supply. Therefore, use the second heater should be used as a spare when the first fails.

Heating time depends on:

pipe diameter;
width of the welding belt;
environmental temperatures. It should not go beyond the norm.

Material after heating saves plasticity very short time. For a few seconds you need to have time to fix the connection, at the same time getting rid of the distortion. The optimal temperature for heating is the mark of + 260 ° C. To ensure reliable connection, the pipe material must be warm enough. But excessive heating can cause a loss of form. Therefore, you should control the execution time of this operation. Depending on the pipe cross section, it is:

8 ... 9 seconds for pipes with a cross section of 20 millimeters;
9 ... 10 seconds, if tubes with a diameter of 25 millimeters are welded;
10 ... 12 seconds when welding pipes with a diameter of 32 millimeters, etc.

Heated and already connected pipes must be cooled correctly. Fixation requires the same time as the heating phase. If you hurry and stop the execution of this procedure earlier than the required time, the deformation of the compound will arise. Welding of polypropylene pipes is a relatively difficult process. Critical is not only non-compliance with heating time, but also failure to fulfill the soldering rules. The main ones are as follows:

during operation, the welding machine must be in the included state all the time;
mandatory drawing on the surface of the markup pipe to ensure the proper depth of the welding seam.
connected elements must be heated simultaneously.

Upon learning what is polypropylene tubes, most of our compatriots prefer to buy such products. Invested money will pay acknowledged by many factors. In particular, the low thermal conductivity of the material allows you to abandon the purchase and installation of thermal insulation. At the same time, heat saving during the transportation of the coolant is about 20%. That is, gas consumption in the autonomous heating system can also be reduced.

Polypropylene Tubes Specifications

Polypropylene pipes. Technical characteristics. Marking of polypropylene pipes. Pros and cons. How to choose polypropylene tubes. Sort of polypropylene pipes.

Plastic pipes have long been an excellent alternative to metal products. Such popularity is explained by the strength and durability of polymeric materials. In addition, polypropylene pipes have a composite structure, which allows the material to withstand high temperatures and pressure (without deformation), not subject to corrosion, do not respond to aggressive components.

In addition, the installation of such pipelines is made much easier: plastic is easily processed, soldier heat welding. In this article we will analyze the key parameters that will be useful as a home master and professional plumbing.

Scope of application of pipes from polymer material

Given that polypropylene pipes are capable of functioning in almost any conditions, the products have a wide area of \u200b\u200bapplication. In particular:

Halfing of hot and cold water supply in multi-storey and private buildings.

Sewage.

Arrangement in the "Warm Paul" system.

Answering of groundwater and wastewater.

Creating drainage, irrigation and reclamation systems.

Ventilation.

Pneumatic systems.

Pipelines for transporting chemically active substances.

It should be noted that, depending on the application, various types of pipes are used. When operating conditions, these products can serve about 50 years old Without loss of functionality.

Physics and mechanical characteristics

Melting point: + 149С (GOST21553).

Density: 0.9 g / cube. CM (GOST15139).

Yield strength (stretching): from 24 to 25 n / sq. MM (GOST11262).

Tensile strength: from 34 to 35 n / sq. MM (GOST11262).

Extension to reach the yield strength: 50%.

Expansion coefficient: 0.15 mm / MMS (GOST15173).

Thermal conductivity (at + 20 ° C): 0.24 W / ms (DIN 52612).

Specific heat capacity (+ 20c): 2 kJ / kgf (GOST23630).

Advantages and disadvantages of plastic pipes

Polypropylene has a number of indisputable advantages over metal pipelines. These moments can be attributed to the strengths of the material:

Long lifetime. Manufacturers assure that pipes used in cold water supply may not be less 100 years.

Low weight. Polypropylene - lightweight material. If you compare products of similar length and diameter from plastic and metal, the first will be easier for approximately at 9 times.

Simple montage. A person who does not have special skills and knowledge can cope with the installation of such a water supply.

Increased noise insulation level. Pipes in residential building do not miss noises.

Resistance to corrosion. The inner surface of the pipe is processed by special technology, which eliminates the appearance of solid formations, which reduce the capacity of the pipeline.

In addition, it can be noted high resistance to low temperatures and dynamic loads. Such pipes do not need special maintenance, are implemented in the affordable price segment.

There are materials and some disadvantages. In particular:

The high probability of linear expansion is preserved, which requires installation special compensators.

Accelerated aging material under the influence of direct sun ray.

Low heat resistanceWhat implies the mandatory use of the insulation.

In addition, the vintage pipelines are not allowed, so the number of mounting elements is significantly increasing.

Legend - marking

On the labeling of polypropylene pipes, you can learn about used for the manufacture of raw materials and technical features of the material. Above the designations that indicate the ability of pipes to withstand a certain pressure inside the highway.

Now consider the label, which indicates some properties of the material. In the construction market, you can find pipes such categories:

Ppb. - products with high resistance to mechanical damage and hydraulic manifolds used in "warm floor" and cold water supply systems.

PPH - Large diameter pipes, which are usually used when installing ventilation systems.

Ppr. - Universal products, equally effective in hot and cold water supply.

Regardless of marking, polypropylene pipes are made of plastic. However, manufacturers are usually added to the original raw materials active additives that increase the elasticity and thermal resistance of the material.

Types and classification

4 classifying groups are provided that are divided into operating pressure parameters. It looks like this:

PN 10.. Used to transport liquid low temperatures - to +45 Degree.

PN 16.. Are suitable for the arrangement of the gas supply system or fluid, provided that the temperature of the coolant does not exceed +60 Degree.

PN 20.. Widely used pipes capable of withstanding the temperature to +95 Degree.

PN 25.. Hot water and steam products, with heat carrier temperature +100 Degree.

The numeric designation of each group indicates the pressure value in the atmosphere inside the highway. Estimated pressure depending on the service life and temperature:

Temperature (° C)	Service life (years)	Type of pipe
		PN 10.	PN 16.	PN 20.	PN 25.
		Permissible pressure excess, kgf / cm2
20	10	13,5	21,7	21,7	33,9
	25	13,2	21,1	26,4	33,0
	50	12,9	20,7	25,9	32,3
30	10	11,7	18,8	23,5	9,3
	25	11,3	18,1	22,7	28,3
	50	11,1	17,7	22,1	27,7
40	10	10,1	16,2	20,3	25,3
	25	9,7	15,6	19,5	24,3
	50	9,2	14,7	18,4	23,0
50	8,7	13,9	17,3	23,5	21,7
	25	8,0	12,8	16,0	20,0
	50	7,3	11,7	14,7	18,3
60	10	7,2	11,5	14,4	18,0
	25	6,1	9,8	12,3	15,3
	50	5,5	8,7	10,9	13,7
70	10	5,3	8,5	10,7	13,3
	25	4,5	7,3	9,1	11,9
	30	4,4	7,0	8,8	11,0
	50	4,3	6,8	8,5	10,7
80	5	4,3	6,9	8,7	10,8
	10	3,9	6,3	7,9	9,8
	25	3,7	5,9	7,5	9,2
95	1	3,9	6,7	7,6	8,5
95	5	2,8	4,4	5,4	6,1

By types, products are divided into reinforced and unarmed. For the second group, reinforcement of such materials is allowed:

Fiberglass.

Internal reinforcement perforated foil.

External - aluminum layer.

Composite: Inner layers of glass - or fibrovolok.

only reinforced pipes are used to arrange hot water supply or heating systems.

Tables standard sizes

Considering that the pipes of this type are used almost everywhere, manufacturers produce products in a wide dimensional range. The product sizes varies in such limits:

Diameter - from 5 to 400 mm. Small pipes are usually used when laying pneumatic systems, medium - private and multi-storey construction, large: arrangement of buildings where high throughput of engineering communications is necessary.

Length - standard value is 4 metersHowever, this is not a reference characteristic, remains at the discretion of the manufacturer.

Wall thickness - 1.9-15.1 mm.

It is necessary to clarify that polypropylene pipes can be performed as a monolayer and multilayer structure. The second option implies reinforcement: five-layer construction, where there is an aluminum gasket between the plastic layers. The thickness of the reinforcing layer is usually varied within 0.1-0.5 mm.

Outer diameter, mm	PN10.		PN20.		PN30.
Outer diameter, mm	Inner diameter	Wall thickness	Inner diameter	Wall thickness	Inner diameter	Wall thickness
16			10.6	2.7
20	16.2	1.9	13.2	3.4	13.2	3.4
25	20.4	2.3	16.6	4.2	16.6	4.2
32	26.0	3.0	21.2	5.4	21.2	3.0
40	32.6	3.7	26.6	6.7	26.6	3.7
50	40.8	4.6	33.2	8.4	33.2	4.6
63	51.4	5.8	42	10.5	42	5.8
75	61.2	6.9	50	12.5	50	6.9
90	73.6	8.2	6	15
110	90	10	73.2	18.4

See the table sizes on the water - gas pipeline steel pipes. Find out about the conditional passage and how to avoid confusion between inches and mm.

Equivalent passage, mm	Outer diameter, mm
Equivalent passage, mm	Steel gas pipelines	Steel plumbing	Polymer
10	17	16	16
15	21.3	20	20
20	26.8	26	25
25	33.5	32	32
32	43.2	42	40
40	48	45	50
50	60	57	63
65	75.5	76	75
80	88.5	89	90
90	101.3
100	114	108	110
125	140	133	125
150	165	159	160
160		180	180
200		219	225
225		245	250
250		273	280
300		325	315
400		426	400
500		530	500
600		630	630
800		820	800
1000		1020	1000
1200		1220	1200

Some important montage nuances

The installation of plastic pipes is somewhat different from metal analogs. In particular, when installing, it is necessary to comply with such conditions:

Polypropylene tubes do not bend at right angles, here tees and fitting compounds are used to change the direction of the highway.

Plastic does not destroy under the influence of temperature differences: the pipe increases in length. Therefore, if the length of the segment of the pipeline exceeds 10 metersThe temperature compensators are necessarily installed.

Under the influence of high temperatures, the pipe is subject to linear expansion, so hard fixation of the pipeline inside wall structures is not allowed: thermal clearances are left.

For hot water, only reinforced products are used that are less susceptible to linear extensions.

An insignificant bending of the pipe is allowed. This can be done heated surface with a construction hairdryer (temperature around 140 degrees).

It should be noted that the storage of plastic pipes on open spaces is not recommended. To protect products from direct sunlight, which destroy the structure, be sure to be equipped.

Key selection criteria

To buy high-quality pipes that easily work out the manner declared by the manufacturer, it is necessary to follow the selection recommendations:

Selection of component parts.

When mounting, couplings will be required, fittings, wiring tees. The ideal option will be combined elements having threaded inserts or metal frames. Such products will provide a high-quality transition between plastic and metal pipes.

Manufacturer.

Products use consistently high demand all over the world, so plastic pipes are produced by domestic, European and Asian companies. The pipes manufactured by German, Czech and Russian companies have proven well. We need to treat the products of Turkish and Chinese manufacturers: Low cost implies low quality.

Marking.

Here you need to pay attention to the bandwidth of pipes, resistance to hydrowards and temperature differences. The optimal option is the selection of a pipe that is slightly superior to the desired values.

It should be noted that the durability of the plastic pipeline affects not only the characteristics of the product, but also the correctness of the installation.

Rating of proven manufacturers

Among the companies engaged in the production of polypropylene pipes, such brands are most popular:

Wawin Ecoplastik. Czech company, which managed to conquer a high rating from builders of the whole world. The revolutionary solution of the manufacturer is Fiber entirely flapping pipes that have a minimum weight, but at the same time show high strength and resistance to linear extensions.

FV-Plast.. Another Czech company, presented in the market reinforced pipes with perforated aluminum inserts. Released products have a wide dimensional range, ideal for the arrangement of hot and cold water supply.

Pro Aqua.. Russian enterprise engaged in the production of multifunctional polypropylene pipes. The company's products are distinguished by high technical characteristics, while sold in an affordable price range.

In addition, you can pay attention to the products of such companies: Banninger Reiskirchen (Germany) and Valtec (Italy). Plastic pipes of these brands are in a high price segment, but possess practically reference quality.

Polypropylene pipes. Types and specifications. Sort of polypropylene pipes How to choose the right line of highway

Properties of polypropylene pipes for water supply

Selection and use of polypropylene pipes for water supply

How to choose a pipe from polypropylene

What is better - polypropylene or metal-plastic pipes

What is polypropylene pipes

Views

Marking

Manufacturers

Wavin.

RVK

Heisskraft.

How to choose polypropylene pipes for heating

Pipe material for communications. What does the pipe parameters affect

What diameters are polypropylene pipe materials

The effect of pipe diameter on the operational characteristics of the heating system

Conclusion

Marking of polypropylene pipes

Advantages and disadvantages of polypropylene products

The process of selecting polypropylene pipes

Polypropylene pipes

Corrugated polypropylene pipes

Polypropylene pipelines welding technology

Dimensions and classification of polypropylene pipes

Classification of polypropylene pipes in the composition of raw materials

Pressure classification

From which the size of polypropylene pipes depend

How to choose the right size of the highway

Polypropylene pipes - sizes, table

Polypropylene pipes for water supply and heating

Properties of polypropylene pipes for water supply

Selection and use of polypropylene pipes for water supply

Polypropylene pipes. Types and specifications

Marking of polypropylene pipes

Pros and cons of polypropylene pipes

How to choose polypropylene pipes

Assortment of polypropylene pipes

Color of polypropylene pipes

Polypropylene corrugated pipes

Features of welding polypropylene pipes

Scope of application of pipes from polymer material

Physics and mechanical characteristics

Advantages and disadvantages of plastic pipes

Legend - marking

Types and classification

Tables standard sizes

Some important montage nuances

Key selection criteria

Rating of proven manufacturers

See competent video about how to solder polypropylene pipes