Pn 20 25 polypropylene pipes. Polypropylene pipes. Specifications. The main advantages of polypropylene pipes
PPR PN 10 polypropylene pipes are the best choice for laying cold water supply systems in residential buildings, industrial, administrative buildings and greenhouse farms. The use of modern durable random copolymer polypropylene in their manufacture ensures their reliability and durability during the installation of air supply systems and technological solutions.
Mounting Features
The use of polymer pipes is regulated by federal building codes and the set of rules SP 40-101-96. A specific feature of polymer systems, which must be taken into account when designing, is a high coefficient of thermal expansion.
There is also a rigid relationship between the operational life of the pipeline and the operating pressure and temperature of water or air. The maximum service life of 50 years for pn10 polypropylene pipes is determined by manufacturers for a maximum operating pressure of not more than 1.0 MPa and water temperatures up to +20 °C.
Advantages of polypropylene pipes
Chemical resistance, high mechanical strength and elasticity of the random copolymer determined the following advantages of polypropylene pipes over metal ones:
- corrosion resistance makes water treatment and waterproofing of pipes unnecessary;
- chemical neutrality guarantees entry into drinking water foreign impurities;
- smooth inner surface with low adhesion eliminates the deposition of salts and limescale;
- mechanical strength and resistance to temperature fluctuations prevents cracking;
- high elastic characteristics reduce sensitivity to hydraulic shocks.
Technological and consumer features of polymers allow you to quickly mount plumbing systems using low-temperature welding and sealants, without expensive equipment. Therefore, when repair work ah plastic pipes are the best alternative to steel.
Specifications
Vesin Trade offers its customers PPR VASEN PN 10 pipes with a wall thickness of 1.8 mm to 10 mm and an outer diameter of 16 - -110 mm. Pipes are manufactured by Weixing NBM Corporation from the well-known brand pipe polypropylene Hostalen in strict accordance with the requirements of international standards on high-tech equipment. We can offer you pipes in lengths and coils from 8 to 200 meters.
Polypropylene pipes. Specifications. 5.00 /5 (100.00%) voted 2
Polypropylene pipes. Specifications.
Currently, the use of polypropylene pipes is all possible: water supply, heating, drainage, ventilation. In terms of price / quality ratio, this is the most suitable option for the installation of such pipes, not only in industry, but also in household. The most important advantage of such pipes is corrosion resistance and, accordingly, durability. On average, the service life of such pipes reaches 50 years. Thanks to them, the use of steel and cast iron pipes recedes into the background.
Installation of polypropylene pipes is convenient and fast, which allows you to install water supply, heating systems, etc. in the near future. An important advantage of these pipes is resistance to internal raids and deposits. Pressure losses in polypropylene pipe systems are minimal. Resistance to negative temperatures high, this means that the likelihood that the pipe will crack when frozen is minimal.
It is not difficult to guess that polypropylene material is used in the manufacture of these pipes. Polypropylene is a synthetic polymer, a class of polyolefins obtained from the polymerization of propylene. The main advantage of propylene is its low cost, and it is not harmful to the human body. Polypropylene has high strength with relatively low weight.
There are 4 types of polypropylene pipes: 1. The first type with a working pressure of 1 MPa (PN10); 2. The second one with a working pressure of 1.6 MPa (PN16); 3. The third with a working pressure of 2 MPa (PN20); 4. The fourth type with a working pressure of 2.5 MPa (PN25).
The weight running meter polypropylene pipes may vary, depending on the pressure rating, pipe design. Currently, there are many factories producing polypropylene pipes, as a result, pipes may have various designs and weight, so when buying a pipe, you need to contact the company and find out all the necessary specifications polypropylene pipes. Below are the average weight of polypropylene pipes with pressure PN 10, PN 20, PN 25, as well as a table of design pressure of polypropylene pipes PN 10, PN 16 PN 20, PN 25, depending on the service life and temperature.
D is the outer diameter of the polypropylene pipe, mm;
S is the wall thickness of the polypropylene pipe, mm.
Fig. 1. Dimensions of a polypropylene pipe.
Table 1
Theoretical weight and dimensions of polypropylene pipes PN10.
| D, mm | S, mm | Weight, g/m |
| 20 | 1,9 | 110 |
| 25 | 2,3 | 159 |
| 32 | 2,9 | 253 |
| 40 | 3,7 | 398 |
| 50 | 4,6 | 625 |
| 63 | 5,8 | 981 |
| 75 | 6,8 | 1380 |
| 90 | 8,2 | 1980 |
| 110 | 10,0 | 2950 |
Polypropylene pipes PN10 are designed for cold water supply systems, the temperature range for such pipes is up to +20 C ˚. Operating pressure for such pipes is 1 MPa. Internal diameters vary from 16 to 90 mm, external diameters from 20 to 110 mm, with wall thicknesses from 1.9 to 10 mm.
table 2
Theoretical weight and dimensions of polypropylene pipes PN20.
| D, mm | S, mm | Weight, g/m |
| 20 | 3,4 | 167 |
| 25 | 4,2 | 261 |
| 32 | 5,4 | 424 |
| 40 | 6,7 | 653 |
| 50 | 8,3 | 1020 |
| 63 | 10,5 | 1620 |
| 75 | 12,5 | 2300 |
| 90 | 15,0 | 3400 |
| 110 | 18,3 | 5000 |
Polypropylene pipes PN20 are designed for hot water supply at temperatures up to +80 C ˚. The working pressure of such pipes is 2 MPa. Internal diameters vary from 10.6 to 73 mm, external diameters from 16 to 110 mm, with wall thicknesses from 16 to 18.4 mm.
Table 3
Theoretical weight and dimensions of polypropylene (reinforced) pipes PN25.
| D, mm | S, mm | Weight, g/m |
| 20 | 3,0 | 172 |
| 25 | 3,3 | 242 |
| 32 | 4,0 | 381 |
| 40 | 5,0 | 587 |
| 50 | 6,5 | 825 |
Polypropylene pipes PN25 (reinforced) can also be used in cold water supply systems, but more often these pipes are used in heating system, at temperatures up to +95 С ˚ . This pipe is made with reinforced mesh for greater strength and less heat dissipation. The working pressure of such pipes is 2.5 MPa.
Design pressure of polypropylene pipes PN 10, PN 16 PN 20, PN 25.
Table 4
Design pressure of polypropylene pipes PN 10, PN 16 PN 20, PN 25 depending on service life and temperature.
| Temperature (°C) | Service life (years) | Pipe type | |||
| PN 10 | PN 16 | PN 20 | PN 25 | ||
| Permissible overpressure, 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 |
| 5 | 2,8 | 4,4 | 5,4 | 6,1 | |
Pipes for a pressure of 10 bar have thinner walls, and, therefore, their price is lower. They are used for not very loaded systems, with low pressure. Although tests show that pipes PN10 able to withstand short-term exposure to a pressure of 30 bar. The pipes are connected to each other by welding (sometimes this process is called soldering) with a special apparatus. At the same time, the metal mandrels supplied with the device are heated to a temperature of about 300 degrees, the PPR PN10 pipe and the polypropylene fitting are inserted into these mandrels, softened and then connected, after which, after some time, when the material cools down, a welded joint is obtained. Such a connection, if it is made without violating the technology, is not inferior in strength to an all-propylene construction. mainly used for cold water supply. Because under the influence hot water these pipes, due to their thinness, will sag. For hot water supply, PN20 pipes are used, mostly reinforced. The ability of polypropylene pipes, including PN10 pipes, to tolerate accidental freezing of water in them in case of some kind of accident, has made them indispensable when performing water supply work in places where such a situation is not ruled out. After the accident is eliminated, the pipes can continue their work without any additional restoration work. The main advantages of polypropylene pipes are as follows. The light weight, especially of thin-walled PN 10 products, compared to metal pipes makes it easier to install and save on the delivery of products to the site. Installation is also simplified due to the fairly simple and fast connection such polypropylene construction with fittings using a simple and accessible to every developer electrical fixture. A very smooth inner surface, close in its characteristics to the most "slippery" material - fluoroplastic, does not allow various mineral and other deposits to grow on the inner walls of the PN10 pipe. Long term service, calculated in tens of years, reduces the number of maintenance and repair work on a pipeline made of polypropylene pipes. Due to the great flexibility of such products (especially for pipes of small diameter), the laying of a network of them is characterized by a significantly smaller number of connecting fittings, since many turns of the pipeline during its laying can be performed without the use of corners. Our company offers from its warehouse in Moscow polypropylene pipes PN10 with a diameter of 20 to 110 millimeters, 4 m long.
What are the scope of their application, technical characteristics, what does their marking mean? In this article, we will try to understand all these issues. And to understand why this type of pipe structures is truly considered unique materials, without which today it is impossible to imagine the installation or repair of plumbing, heating or sewer communications.
Polypropylene pipe - what is it?
Polypropylene is a type of thermoplastic polymer. It is made by combining (polymerization) molecules of ethylene gas derivative. The international designation of polypropylene is "PP". Next, we will take a closer look at polypropylene pipes: technical characteristics, properties and manufacturing technology of this new generation material.
Having a unique resistance to alkaline solvents and aggressive substances, the material is widely used in the installation of heating systems, water pipes and sanitary facilities. Can withstand low temperatures (up to -10 degrees) or high (up to +110 degrees).
The main properties of polypropylene pipes and their GOST
Modern polypropylene pipes, the technical characteristics and properties of which can be seen in the table, are reliable, durable and quite affordable. The main and indisputable advantage is the fact that they are not subject to corrosive processes, resistant to temperature conditions, easy to install, made of environmentally friendly materials. The main properties according to GOST are presented below.
GOST | Parameter | Index |
Thermal conductivity, at +20 0 C | ||
Density | ||
Heat capacity at +20 0 С (specific) | ||
Melting | ||
(at break) | 34 ÷ 35 N/mm2 |
|
| 18599 | Yield strength elongation | |
Yield strength (tensile) | 24 ÷ 25 N/mm2 |
|
Expansion factor |
A type of polypropylene pipe. Scope of application
The latest production technologies plastic products These are polypropylene pipes. Specifications are shown below.
- PN10 - thin pipe. The service life is approximately 50 years. It is used when installing cold water supply, underfloor heating (heat carrier temperature should not exceed + 45 0 С). Standard sizes: Ø outside 20÷110 mm, Ø inside 16.2÷90 mm, pipe wall thickness 1.9÷10 mm. Nominal pressure - 1 MPa.
- PN20 - this one is used in cold water supply systems in residential or industrial buildings or hot water (up to +80 0 С). The service life is 25 years. Nominal pressure - 2 MPa. Dimensions: outer Ø 16÷110 mm, inner Ø 10.6÷73.2 mm, pipe wall thickness 16÷18.4 mm.
- PN25 - polypropylene pipe reinforced with aluminum film or glass fiber. By its properties it is identical to metal-plastic. The service life depends on the pressure inside it and temperature carriers. It is applied at installation of systems of heating and hot water supply. Nominal pressure - 2.5 MPa. Dimensions: outside Ø 21.2÷77.9 mm, inside Ø 13.2÷50 mm, pipe wall thickness 4÷13.4 mm
The main advantages of polypropylene pipes
What are the indisputable advantages of polypropylene pipes? The technical characteristics of polypropylene, according to manufacturers, are truly amazing. It is considered a versatile building material for installation and renovation. engineering communications in residential and industrial complexes. They have been successfully tested in independent European and world laboratories and have confirming quality certificates. Let's consider the benefits.
- Their main advantage is long term operation - about 50 years, and when used in a cold water supply system, they can serve up to 100 years.
- Due to the specially designed inner surface of the pipes, which is constantly in contact with water, no deposits form on their surfaces.
- Noise isolation. When transporting hot water from a heating medium or with a simple flow of water, noises can occur. Polypropylene is able to absorb them.
- No condensation. The PPR polypropylene pipe is resistant to temperature changes due to low thermal conductivity.
- Light weight. Compared to their metal counterpart, they are 9 times lighter.
- Ease of installation.
- Additional maintenance is not required.
- Resistance to acid-base substances.
- The elasticity of the polypropylene pipe is very high.
- Affordable price.
Product data sheet pn25
Not so long ago, manufacturers developed and mass-produced a polypropylene pipe pn25. Its technical characteristics are described in detail in the product data sheet.
Characteristic name | Values for polypropylene pipes: dimensions |
||||||
20÷3.4 | 25÷4.2 | 32÷5.4 | 40÷6.7 | 50÷8.3 | 63÷10.5 |
||
Internal Ø | |||||||
Specific heat capacity | 1.75 kJ/kg 0 С |
||||||
Ø tolerance | |||||||
Linear expansion, (1/ 0 С) | |||||||
Heating time during welding | |||||||
Roughness coefficient(equivalent) | |||||||
Cooldown time, (seconds) | |||||||
Tensile strength | |||||||
Regulatory Series | |||||||
Elongation at break (relative) | |||||||
Weight (kg/linear meter) | |||||||
Tensile yield strength | |||||||
Melt flow rate (index) PPR | 0.25 g/10 min |
||||||
Thermal conductivity | 0.15 W m/ 0 С |
||||||
Heating time during welding | |||||||
Elastic modulus PPR | |||||||
Pipe socket depth (minimum) when welding | |||||||
Pipe density (equivalent) | |||||||
Volume (internal) linear meter / l | |||||||
Elastic modulus PPR + fiber | |||||||
Dimensional ratio(standard) | |||||||
PPR Density | |||||||
Pressure (nominal), PN | 25 bar | ||||||
Time of welding | |||||||
A novelty in the metal-plastic industry with high quality and properties - polypropylene pipe pn25. Specifications are detailed in the table above. It was she who was able to solve the problem with a high coefficient of thermal expansion of plastic pipe products. This makes it possible to use it in the drinking water supply system, hot water supply, heating installation and other utilities. And also for the transportation of other liquids or gases that are not aggressive with respect to the materials from which they are made.
Design features
Layers on the inside and outside are made of special polypropylene grade PPR100. In it, the percentage of fiberglass fiber is at least 12%. The inner layer is made from the same material, but the fiber content is increased to 70%, and also with a red dye content. The presence of fiberglass fiber in the composition of the pipe reduces the level of deformation from temperature effects, but, unfortunately, cannot cope with oxygen diffusion.
What is the reinforcement of polypropylene pipes. Types of reinforcement
Consider their universal technical characteristics, types of reinforcement, where they are used. Special reinforcement makes it possible to use in a heating or supply system. In addition, they are not only famous for their long service life, but also for their high quality and efficiency. To date, there are two methods of reinforcing this type of product: fiberglass and aluminum. Let's consider each of them separately.
fiberglass reinforcement
Fiberglass reinforcement is a three-layer pipe construction: two layers of polypropylene (internal and external) and a fiberglass layer. Marked as PPR-FB-PPR. Such an abbreviation in the marking confirms the monolithic structure and fiberglass reinforcement. During installation, these products do not need the need for calibration or stripping, experts recommend installing more additional fasteners during installation.
Reinforcement with aluminum
Pipe products with such reinforcement are a material for the installation of heating or hot water systems with high level structural rigidity. They are identical in strength to metal counterparts with thin walls. On their surface, the PPR-AL-PPR marking must be present. Reinforced with two layers of aluminum: the first is perforated with small holes, and the second is solid and solid over the entire surface of the pipe structure. During installation, the aluminum layer needs to be cleaned, only the polypropylene layer is soldered. If the technology is correctly implemented, then the mounted system will work for many years without problems.
Polypropylene and its application in the sewer system
So, we found out that polypropylene as a pipe material is highly resistant to aggressive alkaline and chemical substances. Therefore, to the question "which pipes are better to choose for engineering communications?" the answer is unequivocal - modern polypropylene sewer pipes. Technical characteristics: stability, strength and durability. In addition to resistance to the effects of aggressive substances on them, and there are a lot of such in gutters, they will also last for a rather long period. They are not affected by corrosive processes in comparison with metal pipes. Pipe length for sewer system is about 4 meters, the diameter of polypropylene pipes (technical specifications contain such information) is from 16 mm to 125 mm. That is, their sewage system is quite wide. They are connected to each other by diffuse welding or using special fittings.
Polypropylene Valtec pipes
Today, there are a lot of offers from manufacturing companies of these products for buyers in our country. And when choosing the material for the gasket engineering systems sometimes it is quite difficult to make a choice in favor of one of them. By appearance they are exactly the same, and differ only in manufacturing technology. And even then, if a person is incompetent in the issue of pipe products, then he is unlikely to understand the characteristics either. This is especially true for new firms that have recently appeared on the sales market.
Italian manufacturers Valtec present their new Valtec polypropylene pipes to the buyer. Specifications: excellent quality, new manufacturing techniques, durability and reliability. Moreover, this company has occupied a leading position in the sales market for several years. Its products have always been and are in demand. The quality is high due to the fact that the company keeps pace with the development of new technologies and introduces them into its production. Manufacturers give a 7-year warranty on the goods.
The price for the entire range of products is quite affordable. There are always available integral for cold water supply systems and composite polypropylene pipes reinforced with glass fiber or aluminum with a section diameter of 20 ÷ 90 mm. Employees of the company are very closely monitoring the quality of products, so errors or deviations from the standards are completely excluded. Produced in special tubes up to 4 meters with printed markings, with accompanying documentation and certificates.
PPRC pipes
These are pipes made of high temperature polypropylene. They are produced with a section diameter of 20÷160 mm. Reinforced with fiberglass or aluminum. Their main difference is small indicators of thermal expansion, low pressure loss. The production technology fully complies with GOST and the requirements of foreign standards. What are polypropylene pipes pprc? Specifications, properties and advantages of the plastic product:
- low thermal conductivity;
- high level of sound insulation;
- resistance to corrosion processes;
- resistance to aggressive substances;
- high strength;
- resistance to bending more than once;
- environmentally friendly material;
- ease of installation;
- affordable price;
- long service life.
The use of polypropylene in the water supply system
Plastic pipe products rapidly entered the list of demanded building materials, polypropylene water pipes became no exception. Specifications, advantages and disadvantages are presented below.
Advantages:
- resistant to corrosion;
- service life - from 50 years;
- zero conductivity, hygiene;
- ease of installation;
- do not require additional care;
- affordable price;
- ability to withstand pressure of about 20 bar;
- excellent thermal insulation.
Flaws:
- do not withstand temperatures over 100 0 С;
- inability to repair or repair;
- welding work required.
Produced in different color schemes: grey, green, black and white. The color of the pipe does not depend on the properties and quality, except for black. He has the ability to protect her from ultraviolet radiation. For the installation of the water supply system, pipes with a diameter of 16 ÷ 110 mm are used. For cold water supply, pipes labeled PPH homopolymer or PPB block copolymer are suitable. To supply hot water or heating, pipes marked PEX-AL-PEX are used. They are reinforced with either fiberglass or aluminum.
Classification of polypropylene pipes
All polypropylene pipe products are classified in a certain way.
- PPB - marking means that these are pipes with mechanical strength advanced level, polypropylene pipes are used for heating. Characteristics: reinforced (fiberglass or aluminum foil), strong, durable, affordable.
- PPH - marking of products with large diameters. Used in ventilation systems or in cold water systems.
- PPR is the most popular and versatile brand. Its versatility lies in the fact that it is able to carry high temperatures water flow. It is used in hot water supply and heating systems.
All these three brands differ from each other only in the type of plastic used in the manufacture. They contain special additives that make them more elastic and durable.
