Polypropylene pipes are used to equip water supply systems in residential, industrial and administrative buildings. The material used for the production of plastic water conduits belongs to the group of polyolefins and, like all substances in this category, is an environmentally friendly product. The products are distinguished by impact strength, chemical resistance and mechanical strength in different temperature conditions.
Polypropylene pipes for cold and hot water supply have become popular and widely used due to their advantages.
Polypropylene pipes for cold and hot water supply: scope of application
Plastic composite water supply systems are used as a distribution mechanism in public and residential buildings, and are widely used in the agricultural sector to supply the industry with process and drinking water. In addition, polypropylene pipelines can be used to transport chemically active liquids and compressed air.
The technical characteristics of polymers allow them to be used in almost any industry that requires transportation of air and liquids:
- for cold water and hot water supply;
- for organizing heating systems;
- to ensure the workflow of hydraulic and compressor equipment;
- as ventilation and climate control equipment;
- for the purpose of heating surfaces;
- for organizing sewerage;
- in land reclamation, artificial irrigation, drainage, etc.
The effectiveness of welded joints of plastic pipelines is close in strength to the quality of welding of metal products. This allows us to consider polypropylene one of the most advantageous building materials for the production and use of pipelines.
Are Czech pipes the standard of quality?
In the market of polypropylene pipes, Czech pipes also occupy their place. And to make sure of this, we suggest considering the features of well-known brands of Czech polypropylene pipes.
Wawin
WAWIN Ecoplastik. Czech pipes WAWIN Ecoplastik are considered a quality standard in Europe and the world. From the first batch, WAWIN Ecoplastik polypropylene pipes have proven themselves only on the positive side. Thanks to the good quality and selection of fittings and pipes, the Ecoplastik system has become popular in many countries. Czech polypropylene pipes are used:
- for hot/cold water, air, underfloor/central heating;
- PN 10 - for heated floors and cold water supply;
- PN 16 - for central heating with low pressure and cold water with high pressure;
- PN 20 - for hot water supply and central heating.
The product range of WAWIN Ecoplastik polypropylene pipes includes:
- PP-R - all-plastic PN 10, PN 16 and PN20.
- Ecoplastik Stabi is a multilayer PN 20. The pipe consists of a layer of plastic, foil and aluminum.
- Fiber pipe made of polypropylene.
- All-plastic and combined fittings.
The WAWIN Ecoplastik company produces fiberglass reinforced Fiber pipes. They are used in a variety of areas: heat supply, plumbing systems for any purpose. Before soldering them, there is no need to clean the surface of aluminum. Fiber pipes have high strength with a linear expansion of 3 times.
FV-Plast
FV-Plast. Czech FV-Plast pipes are used for heating and water supply systems. A layer of aluminum is included in the pipe design. Thanks to this, the pipe design is more resistant to temperature changes. Due to the presence of a large number of fittings, you can solder all kinds of water supply and heating structures. FV-Plast is used not only for the manufacture of plumbing and heating systems. They are used in agriculture and industry. Also used for wiring air ducts.
The low weight of the FV-Plast pipe makes installation simple and safe. There is a slight roughness on the inner wall of the pipe, which does not affect the water pressure in the system.
Advantages and disadvantages of polypropylene pipes
The reliability and durability of polypropylene pipes for cold and hot water supply largely depends on the quality and performance characteristics of the source material, which is characterized by high strength, elasticity and durability.
The main advantages of polymer pipelines:
- When in contact with water, they do not form salt or alkaline deposits that promote corrosion.
- The diameter of plastic pipes remains unchanged throughout the entire service life.
- The product is environmentally friendly, which especially affects the quality of the transported water.
- The material is chemically inert and non-toxic.
- The composite withstands pressure and short-term temperature changes well.
- Eliminates pressure drop due to friction in the pipes (low roughness).
- Low thermal conductivity.
- In operating mode, no condensation forms on the surface of the pipes.
- High sound insulation properties.
- Composite products are made from an opaque material, which inhibits the formation of algae and light-sensitive bacteria during the transportation of liquids.
- When water freezes in polymer pipelines, their structure is not destroyed, but stretches and is restored when defrosted.
- Installation of polypropylene fittings does not require special skills. The use of sleeve welding allows you to create a tight and durable connection in a few minutes.
- Polymer pipes are 9 times lighter than steel water pipelines.
- Low cost and easy to maintain. Plastic does not require additional heat and waterproofing.
Polypropylene pipes are characterized by increased durability and high operating temperature.
Among the disadvantages of polymer pipes, several positions can be distinguished, these are:
- high linear expansion rates;
- impossibility of installation and operation in low temperature conditions;
- low resistance of the material to ultraviolet radiation;
- The use of plastic products in fire extinguishing systems is not permitted.
The deformation and strength characteristics of plastic pipelines largely depend on the temperature of the transported medium. Therefore, the design of pressure polymer networks must be carried out taking into account the operating temperature, technical conditions for performing the work and the planned service life of the structure.
Advantages
The main advantage of polypropylene over other pipes is its very affordable price. Here are a few specific examples from the price list of the Leroy Merlin online store:
- A non-reinforced pipe PN 20 of domestic production, intended for hot water supply, with a diameter of 20 mm, will cost only 23 rubles per linear meter;
Pipe for domestic hot water needs without reinforcement
- A fiber-reinforced pipe of the same diameter costs 40 rubles per meter, and one reinforced with aluminum foil costs 57 rubles;
- A coupling for connecting 20 mm pipes will delight the buyer with a price tag of only 2.8 rubles, a tee of the same size costs 5 rubles 70 kopecks.
Please note: the closest competitor in terms of pipe prices is metal-plastic. With the same outer diameter as polypropylene, it is only slightly more expensive than an aluminum-reinforced hot water pipe. However, fittings for metal-plastic (compression and for crimping with a sleeve) are 10-15 times more expensive than polypropylene ones, which on the scale of a water supply creates a more than noticeable difference in price.
Fittings for polypropylene pipelines are structurally simple and therefore extremely cheap
However, low cost would not have played a decisive role if not for other properties of polypropylene:
- Pipes are durable. In hot water they last at least 25 years, in cold water - even from 50. Compare their resource, for example, with the service life of black steel in water supply (15 years);
- The smooth inner surface of polypropylene pipes does not become overgrown with deposits. Therefore, the throughput of the water pipeline does not decrease and its hydraulic resistance does not increase over time;
For comparison: when designing steel water pipelines, it is necessary to take into account the increase in the roughness coefficient during operation, deliberately overestimating their diameter.
- Welded connections with fittings are maintenance-free. They are stronger than a solid pipe and can be installed in ties and grooves;
A welded joint is not inferior in strength to a solid pipe, but exceeds it
- The appearance of the pipeline is preserved for decades. It does not need to be periodically painted or cleaned of rust;
- Polypropylene is a dielectric, which prevents electric shock when, for example, neighbors try to save electricity by grounding electrical appliances to the water supply;
- It has low thermal conductivity. This means that the hot water in the pipes will cool more slowly, and the risers and cold water supply lines will not become covered with condensation in the summer heat.
Condensation on a steel cold water pipe
Types of polypropylene pipes
When laying out pipelines for water supply and heating, one of the main factors is the choice of components. Based on their structure and technical characteristics, polymeric materials are divided into several types:
- Single-layer pressure pipe for cold water with an operating temperature of +20°C and an allowed pressure of up to 10 bar.
- Single-layer for hot and cold water supply with maximum pressure up to 20 bar and operating temperature up to +75°C.
- Multilayer, reinforced with perforated aluminum foil, temperature up to +90°C, pressure - 20 bar.
- Multilayer, fiberglass reinforced - up to +90°C, 20-25 bar.
According to the material of manufacture
In accordance with the international standard EN ISO 15874-2013 and Russian GOST 32415-2013, pressure pipes and connecting fittings are made from the following materials:
- PP-N (Type 1 PP-G) - homopolymers;
- PP-V (Type 2 PP-B) - block copolymers;
- PP-R (Type 3 PP-R) - random copolymers;
- PP-RCT (Type 4 PP) are random copolymers with modified crystallinity and high heat resistance.
Fittings of classes 1-4 must be suitable for transporting hot and cold water for 50 years.
By type of reinforcement
The pipe, whose structure is improved by perforated aluminum foil, consists of three layers. During the manufacturing process, the inside of the pipe is connected to evenly spaced perforated foil and covered with a layer of polymer on top.
Reinforcement reduces the coefficient of thermal expansion of structures.
The outer contour is needed to protect the aluminum perforated layer from damage. The middle part of the foil forms an intra-diffusion barrier to protect against air penetration into closed heating systems.
The low value of thermal linear expansion (less than that of single-layer pipes) makes the product more rigid, which reduces its sagging and allows for a reduction in the volume of fasteners and expansion joints.
Pipes reinforced with fiberglass have the same properties as those with an aluminum layer. The presence of a middle layer gives such reinforcement additional strength and reduces the linear elongation.
Rating of the best manufacturers of polypropylene pipes
Nomination | Place | Manufacturer | Rating |
Rating of the best manufacturers of polypropylene pipes | 1 | Akwatherm | 5.0 |
2 | VALTEC | 4.9 | |
3 | WEFATHERM | 4.8 | |
4 | Banninger | 4.7 | |
5 | WAVIN EKOPLASTIK | 4.6 | |
6 | TEBO | 4.5 | |
7 | NOVAPLAST | 4.4 | |
8 | SupraTherm | 4.3 | |
9 | Pilsa | 4.2 | |
10 | PRO AQUA | 4.1 | |
11 | FV-PLAST | 4.1 | |
12 | RVC | 4.0 | |
13 | DESIGN | 4.0 | |
14 | Blue Ocean | 4.0 |
Now let's move on to a review of the best manufacturers, compiled on the basis of a study of their activities, product range, technologies used and customer reviews.
Akwatherm
Rating: 5.0
In first place is the German company Akwatherm, which has been manufacturing polypropylene pipes for more than 40 years. The manufacturer's products are certified according to international standards and are of high quality. The catalog offers polypropylene pipes for cold and hot water supply, creation of heating systems and heated floors. The products of this company are used for communications in such companies as PepsiCo and the Marriott hotel chain. Before going on sale, samples of each series are tested for strength, flexibility, stretching and withstanding the declared pressure. User reviews are satisfied with polypropylene pipes for drinking water, which are environmentally friendly.
Our experts considered the manufacturer to be the best due to the production of pre-insulated polypropylene pipes. This is a new TI technology that involves preserving communications in a layer of foam and an additional plastic shell. Such pipes can be laid in the ground or run through open unheated areas on the street without additional protection.
Advantages
- there are polypropylene pipes in coils and poles;
- global recognition of product quality;
- products are conveniently divided into categories in the catalog;
- Availability of ISO 50001, 9001, 14001 certificates.
Flaws
- high price;
- not available everywhere;
- Some types of fittings are available on special order only.
VALTEC
Rating: 4.9
Second place went to the Russian-Italian manufacturer VALTEC. The company was founded in 2002 and specializes in heat and water supply systems. The company occupies a leading position in the Russian construction market and actively cooperates with developers, where 1.2 million m² of new housing is supplied with polypropylene pipes every year. The manufacturer has the prestigious “Brand of the Year” award and carefully monitors the quality of its products. Buyers in the reviews like that polypropylene pipes of this brand are insured (flooding of neighbors, etc.), so the burden of eliminating the consequences falls on the insurance companies. But for this, it is important to buy communications at official points of sale and with all the documents.
We included the manufacturer in the list of the best because they provide a long warranty for their products. By purchasing VALTEC polypropylene pipes, you receive a document providing free replacement or repair of the damaged area (a simple refund is possible) for 10 years. This is an impressive period among polypropylene communications (competitors have 5-7 years).
Advantages
- an established system of quality control and production management;
- follow innovations and offer comprehensive solutions;
- can be purchased anywhere in Russia;
- available technical support.
Flaws
- if the claims regarding the alleged defect turn out to be unfounded, then the costs of the examination are paid by the applicant;
- high price.
WEFATHERM
Rating: 4.8
The third place of honor goes to the manufacturer from Germany. The Vefatherm company produces polypropylene pipes with fiberglass or aluminum foil reinforcement. The brand catalog contains communications for supplying drinking water, heating, hot water supply and technical needs. According to the degree of pressure tolerated, pipes are divided into PN10, 16, 20 and 25. There are shut-off valves with transitions to threads or flanges to connect stainless heated towel rails or to connect to the metal pipes of neighbors. Experts in reviews praise the manufacturer for producing polypropylene pipes with increased smoothness of the inner walls. Due to this, less sediment accumulates on the surface of the channels and their throughput does not change over time.
This manufacturer has the highest quality polypropylene pipes with fiberglass reinforcement. They have a low linear expansion (40 mm for every 10 m) and are easy to install.
Advantages
- no stripping is required when connecting joints;
- there are pipes for drinking water, heating and air conditioning;
- high resistance to deposit adhesion;
- A more sparse installation of long-span water supply supports is permitted.
Flaws
- high price;
- When overheated by a soldering iron, the joint becomes severely deformed.
Banninger
Rating: 4.7
Experts put Banninger in fourth place. The manufacturer is located in Germany and has official representative offices in various countries, including Russia. The dealer in the Russian Federation is located in St. Petersburg. The brand's polypropylene products are recognized and are of high quality, which is why they have been installed by such organizations and enterprises as the Central Bank of Russia, the Moscow Hotel, the customs terminal in Kronstadt, and the 1st Medical Institute. The manufacturer uses only heat-stabilized polypropylene PP-RCT, which is characterized by increased reliability. Buyers in the reviews are pleased by the presence of a guarantee for each emergency, which covers losses in the amount of up to 30 million euros.
This manufacturer stands out for its production of polypropylene pipes with particularly large diameters. The internal throughput size can range from 20 to 125 mm. Products with an indicator of 90-125 mm are ideal for installing vertical risers in multi-storey buildings. To supply process water to enterprises in large volumes, the manufacturer offers water pressure systems with a diameter of 160-400 mm.
Advantages
- pipes do not change the taste and chemical properties of the liquid;
- service life 50 years;
- plastic pipes are resistant to acids and alkalis;
- ISO 9001:2008 certificates.
Flaws
- Delivery of especially large quantities can take up to a month;
- some fitting elements are very expensive;
- For installation of pipes with a diameter of 100-400 mm, special soldering irons are needed.
WAVIN EKOPLASTIK
Rating: 4.6
The top five manufacturers include the WAVIN EKOPLASTIK brand, which has been producing polypropylene pipes since 2003. The company was formed as a result of the merger of two enterprises - the Czech and the international corporation WAVIN. The catalog of polypropylene products is divided into the categories System Ekoplastik, SmartFIX, Wavin K-press, M-press. The brand's products are presented in 25 countries around the world. There are pipes in racks and coils. The range contains communications for operating pressures of 10-20 atm. The manufacturer carefully monitors the size of the internal diameter of the pipe and polypropylene fitting to prevent pressure loss.
In our opinion, this manufacturer is the best because it produces new generation polypropylene pipes. A unique feature of the products is the use of basalt fiber instead of glass, which allows them to be used at operating temperatures up to 90 degrees. Polypropylene communications with basalt do not have linear expansion. Such characteristics make the liner ideal for installation next to a boiler, boiler or other heating sources.
Advantages
- same diameter of pipe and fitting;
- there are diameters 20-50 and 160-250 mm;
- products are certified ISO 9001:2009;
- light weight plastic.
Flaws
- sometimes you come across a fake fitting;
- high price.
TEBO
Rating: 4.5
This is a relatively “young” manufacturer, which began its activities in 2008. The company produces shut-off valves, polypropylene fittings and pipelines, fasteners and manifolds. We considered the company to be the best due to the development of several patents with polypropylene pipes, which other brands do not have. In 2011, the manufacturer presented a dismountable plastic connection with a Eurocone and a union nut. This simplifies the subsequent connection of a radiator or pump without using a soldering iron. Judging by the reviews, customers like the combined metal and plastic fitting, which allows you to connect a polypropylene line to a steel pipeline. Such elements from the manufacturer are more compact in size than similar products from competitors.
The manufacturer also has a welded saddle with two pipes. The internal diameter of the first channel is 25 mm, and the second can be 63-90 mm. This design is optimal in small spaces where it is not possible to install a conventional tee. The third “trick” of the polypropylene fitting is the indication of the depth of the welded collar, which makes assembly easier for the master - you can immediately see to what extent the sides need to be squeezed together so that they do not block the internal passage.
Advantages
- Borealis raw materials are used to make pipes;
- quality control at the input of components and output of finished products;
- have their own testing laboratories;
- There is a combination fitting.
Flaws
- 7 year warranty - less than other manufacturers;
- You can’t buy it in every city in Russia.
NOVAPLAST
Rating: 4.4
Next in the review is the NOVAPLAST plant, owned by the KAR Group. This is one of the largest Turkish manufacturers, which began its activities in 1982. The company's polypropylene products are sold in 52 countries, including France, Italy, Spain and Germany. For pipe casting, Borealis granulated polypropylene or Basell raw materials are used. This is a random copolymer type 3 PPR 80, characterized by high quality and environmental friendliness. The manufacturer's pipes are suitable not only for heating and water supply systems, but even for supplying drinking water.
Experts singled out the manufacturer due to the increased strength of the polypropylene pipeline. The company uses high-quality raw materials from global suppliers and produces pipes with a maximum wall section of 4.5 mm. This allows the products to be used even for gas supply. The presence of various certificates and compliance with GOST allows the use of the manufacturer’s materials in residential and commercial buildings that are subject to thorough inspections.
Advantages
- there are certificates from AENOR (Spain) and TSE, SKZ (Germany);
- service life at normal pressure up to 50 years;
- absence of lime deposits on the internal walls;
- the pipeline is allowed to be placed in concrete structures.
Flaws
- maximum pipe diameter 110 mm;
- It is not possible to find a distributor everywhere.
SupraTherm
Rating: 4.3
The manufacturer has been producing polypropylene liners and risers for 10 years. The plant is located in Romania, Bucharest. The company's products have passed many tests and received a number of certificates from international agencies, including: Gost-R, Gost-Ukr, Agrement Technic, ISO 14001, 9001, EN 12168. The manufacturer produces stabilized pipe with aluminum foil reinforcement, ball valves, shut-off valves, polypropylene pipe with and without fiberglass. The products are suitable for cold and hot water and heating. The craftsmen in the reviews like that the liner with an internal aluminum core does not require pre-cleaning before soldering.
We have placed the manufacturer in the list of the best because of the particularly reliable threaded fitting. In such products, the company uses Italian-made metal inserts. This eliminates leakage and protects against puddles of water on the floor. It is best to use such polypropylene products for connecting heated towel rails, heating radiators and pumps.
Advantages
- there are pipes reinforced with fiberglass and aluminum;
- a large set of certificates;
- European quality;
- suitable for industrial use.
Flaws
- soldering of pipes with external foil trim is slowed down due to the need for stripping;
- the surface of some series may be rough, which is why they quickly accumulate debris on themselves (visible on the liner in the heating system).
Pilsa
Rating: 4.2
And here is another Turkish manufacturer actively promoting its polypropylene products on the Russian market. The company offers PPR pipes with a pressure of PN10-20 atm, which can be used in cold and hot water supply. The catalog includes PPR Fiberglass and PPR-AL options, reinforced with fiber or aluminum foil. The manufacturer keeps up with global trends and has recently expanded its range with PPR Basalttherm pipes with basalt fiber, which allows the use of communications to work with temperatures up to 110 degrees due to the absence of linear extension. You can easily recognize such a product by the thick red stripe on the side.
Buyers in the reviews are satisfied with the ease of the pipe soldering process and say that the material is in no way inferior to German competitors. Polypropylene quickly softens with a soldering iron and is easy to connect. If you want to install a heating system yourself with a minimum number of errors (leaks), then choose products from this manufacturer. There is an optimal price-quality ratio, for which the company is recognized as the best.
Advantages
- does not deteriorate from acids and alkalis;
- relatively low cost;
- high-quality polypropylene PPR;
- designed for a pressure of 20 atm.
Flaws
- the manufacturer agrees to compensate for damage caused by defects only in 50% of cases;
- periodic interruptions in the supply of goods to dealers in Russia.
PRO AQUA
Rating: 4.1
The manufacturer is an exclusively Russian enterprise that produces polypropylene pipes for water supply and sewerage at its own plant. The company has several lines suitable for both domestic and industrial use. The manufacturer uses equipment from European companies Sciteq, Binder, and Zwick to produce polypropylene products. Our own laboratory with a Zwick Roelle testing machine helps evaluate the strength of the pipe even before it goes into serial sale, in order to identify weak points in advance and eliminate them. Customer reviews show that pipes from domestic manufacturers are frost-resistant, easy to assemble and durable.
This manufacturer is notable for its careful approach to quality checks of polypropylene products. The company's laboratory uses more than 60 different measurements (rupture, fracture, stretching, heating, cooling, twisting, etc.) to see how the pipe behaves under the most unusual conditions. All research results are stored in the public domain on the official website, so any buyer can view them.
Advantages
- own certified laboratory;
- European equipment is used;
- corresponds to GOST 17025-2006;
- produced according to ISO 9001:2015.
Flaws
- at a steam temperature of 110 degrees they begin to sag;
- sometimes swelling appears on the surface.
FV-PLAST
Rating: 4.1
Polypropylene fittings and pipes from this manufacturer are Czech products that have been produced for more than 25 years. For casting communications with and without reinforcement, the company uses type 3 polypropylene, as well as polypropylene copolymers. In addition to pipe products, the manufacturer offers a variety of fittings, including: elbows, tees, adapters from one diameter to another, pipes, shut-off valves, and valves. Certain lines of polypropylene products can be used to create heated floors. The internal throughput diameter of the channels varies from 16 to 110 mm. Based on operating pressure, you can choose products with PN10, 16 or 20. The manufacturer mastered co-extrusion technology back in 2003. As a result, the Stabi and Faser series can be safely used for installation next to boilers and boilers.
Our experts singled out the manufacturer as the best due to Stabioxy technology. It implies the presence of a closed oxygen circuit around the internal channel, which acts as an additional barrier to heat exchange. Thanks to this, coolant losses during transportation from the boiler to the radiators are reduced.
Advantages
- wide variety of fittings;
- no cleaning required before welding;
- can withstand temperatures of +90 degrees;
- Convenient color designation system according to temperature purpose.
Flaws
- they use type 3 polypropylene, although in Europe they have already switched to type 4;
- no diameter over 110 mm.
RVC
Rating: 4.0
This is another domestic manufacturer of polypropylene products, whose plant is located in Orenburg. and has existed since 1989. The main characteristics of the pipes produced are average: flow diameter from 16 to 50 mm (the most common ones are 20-25 mm), designed for a pressure of 20-25 atm, and have a wall thickness of 3.4 mm. For the manufacture of products, polypropylene granules from European suppliers are used. Domestic. Residents of Moscow, St. Petersburg and other large cities like the reviews that they can buy polypropylene pipes in the Leroy Merlin network, where they are always available.
Our experts included the manufacturer in the review of the best due to numerous positive reviews that the pipes of this company do not burst due to freezing of the coolant inside. If a section of the highway ran close to the surface of the earth or through an unheated building, then the frozen water inside only expands the polypropylene shell. After thawing, circulation is restored while maintaining tightness.
Advantages
- thickness of polypropylene walls 3.4 mm;
- plant employees regularly undergo internships abroad;
- there are pipes reinforced with aluminum and fiberglass;
- acceptable cost.
Flaws
- sold in 2 m lengths - for long lines you will need couplings;
- melts easily - you need to be careful not to overexpose it to the soldering iron.
DESIGN
Rating: 4.0
In the penultimate place in the review is a manufacturer from Turkey. The company was founded in 1987 and initially specialized in heating and water supply systems. During this time, the DIZAYN Group concern has succeeded and registered 84 patents in this industry. Now the company exports polypropylene products to 70 countries, including Russia. The product has an affordable price per linear meter. The manufacturer has repeatedly ordered independent examination of products and received international certificates: ISO 9001, SKZ, AENOR, SGS, KIWA. The company has been awarded by the Turkish Patent Union for its continuous contribution to the expansion of the industry through innovation.
The uniqueness of the manufacturer is that it is the only one in the world who produces pipes with a diameter of 1600 mm. Such huge collectors can withstand pressures of up to 12.5 bar and are designed for industrial use and for supplying water in particularly large volumes. They are often placed in underground mines and tunnels, where polypropylene communications reliably protect the fluid supply system from corrosion.
Advantages
- attractive price;
- there are reinforced and completely plastic pipes;
- low linear thermal expansion;
- products are accompanied by international certificates.
Flaws
- quality “floats” - depends on the batch;
- some series are produced in China.
Blue Ocean
Rating: 4.0
The final place in our review goes to the manufacturer Blue Ocean. Although this is a Chinese product, it is quite suitable for a very limited budget for repairs. The manufacturer's catalog contains three options for polypropylene communications: simple pipes, with aluminum reinforcement, and with fiberglass. The product has a clear color designation with stripes, indicating the temperature intended use of polypropylene. In addition, the pipes themselves can be painted grey, white, green or blue, which can be used to better match the interior. Competitors do not have such variety, which is why users like the material in reviews.
According to experts, the manufacturer is the best in terms of manufacturing pipes with increased flexibility. This makes it easier to bring the sides together for joining in difficult areas. For example, a joint located close to the wall near the ceiling can be pulled back with your hands, connected with a soldering iron, and then pressed back to the wall. When installing pipes in the basement, where aesthetic beauty is not important, in some corners you can do without a fitting altogether, simply bending the communication.
Advantages
- affordable price;
- there are options for cold and hot water supply;
- four colors of polypropylene;
- reinforced with fiberglass and aluminum.
Main technical characteristics
Polypropylene is an artificial material with high physical and chemical characteristics, obtained by the polymerization of synthetic substances. Pipes made from such a composite have the following properties:
- density - 0.92 kg/cm³;
- resistance to chemically active liquids;
- bending and tensile-compressive strength;
- high levels of electrical and thermal insulation;
- wear resistance;
- permissible temperature range - -15...+120°С;
- plastic deformation to the conditional yield strength - 50%;
- low linear elongation when heated;
- heat capacity 2.0 kJ/(kg.°C);
- low thermal conductivity.
Reinforcement
It is executed:
Image | Reinforcement type |
| Aluminum foil glued between two layers of polypropylene. |
| Fiber (chopped mineral fiber) included in the middle layer of polymer in the pipe structure |
Useful: three layers of fiber-reinforced pipe are formed on one extruder and reliably fused to each other due to the production technology itself. In the production of pipes with aluminum reinforcement, the quality of the product greatly depends on the quality of the glue used and adherence to the technology.
It is believed that the task of reinforcement is to ensure maximum tensile strength of the pipe. Indeed, a maximum operating pressure of 25 atmospheres is typical for reinforced pipes; however, the functions of the reinforcing layer do not end there.
PN25 pipes with basalt fiber reinforcement (top) and aluminum (bottom)
One of the features of polypropylene is its extremely high elongation coefficient when heated. When supplied to a polypropylene water supply system with room temperature water heated to 70 degrees, each linear meter of it will lengthen by 6.5 mm (versus, for example, 0.5 mm for a steel pipeline).
Extension of polypropylene pipeline when heated
Reinforcement significantly reduces dimensional change when heated:
- Fiber reduces elongation to 3.1 mm;
- Aluminum foil is even more effective: with it, polypropylene pipes reinforced for hot water supply elongate by only 1.5 mm/m when heated to 50°C.
Technical requirements according to GOST
According to established norms and standard requirements for the manufacture and use of polypropylene products for plumbing, heating and hot water supply, materials must meet the following characteristics:
- Pipe used to transport liquids must have smooth internal and external surfaces.
- Small longitudinal defects are allowed on the polymer profile: waviness, stripes that do not protrude beyond the limits of permissible deviations.
- The presence of cracks, swelling, chips, cavities, and foreign inclusions on the internal, end and external surfaces is not allowed.
- Changes in yield strength from the original - no more than 20%.
- Vicat creep temperature ≤ +80…+115°С.
- The height of the profile after removing the sprues should be within the range of 0.3-0.5 mm.
- Fitting joints must ensure tightness for 5000-10000 cycles.
The water pipe used must have smooth internal and external surfaces.
Polypropylene pipes for water supply: manufacturer ratings
First, let's look at what such products are in general. These are the most suitable products if the goal is to create a reliable water supply in the house. By selecting and comparing technical characteristics, it turns out that polypropylene is many times superior to materials such as polyethylene and polyvinyl chloride. This type of plastic is characterized by the lowest density - 0.91 g/cm3.
Depending on the class of the product, polypropylene fittings can be used to organize both hot and cold water supply. High-quality polypropylene fittings and pipes may differ from each other, so when choosing, you should pay attention to the markings, which indicate the manufacturing technology and characteristics.
READ ALSO: How to remove inscriptions from a plastic sleeve?
PPH and PPR products are considered the most optimal for organizing water supply. As for the former, they have a large margin of safety, but react poorly to low temperatures (below 0) and exposure to ultraviolet radiation. Based on GOSTs and SNiPs, professionals recommend using them to lay cold water lines.
6) Main line made of plastic pipes.
The best heat resistance (withstands up to +900 degrees Celsius) and resistance to UV rays for PPR products. Such pipes are suitable for organizing cold and hot water supply and for heating systems. There is only one caveat - they should be installed in heated rooms, and they are not recommended for outdoor conditions. We are talking about single-layer reinforcement, when reinforced two-layer ones are more suitable for heating.
When choosing pipes, you should pay attention to the markings:
- PN10 – thin-walled products for cold water supply and “warm floor” systems, with a working fluid temperature of no more than +450 degrees Celsius;
- PN16 - a universal option for cold water and hot water, with a temperature of no more than +600 degrees;
- PN20 – thick-walled fittings that can withstand temperatures of +950 degrees;
- PN25 - require reinforcement, suitable for hot water supply and heating systems.
Now regarding the best options for polypropylene pipes. It should be noted here that the production technology is the same in all cases, but each manufacturer adds certain plasticizers to the material, aimed at improving one or another characteristic.
The most popular manufacturers:
- Rehau, Banninger (Germany);
- Ecoplastic FIBER (Netherlands);
- Valtec (Italy);
- TEBO, Vesbo (Türkiye);
- ProAqua, Politek (Russia).
Manufacturers offer products of almost the same quality. The only thing is that you will have to pay extra for a brand, for example, Rehau, while Chinese options, on the contrary, will cost less. Russian products also have their advantages, firstly – availability.
Marking of polypropylene pipes
Technical marking of materials for the consumer is necessary for the correct calculation and selection of the required range of plastic pipes, which depends on the purpose and operating conditions of the product. There is a basic article and several types of additional designations.
The standard designation of a polymer product is as follows:
- the word "pipe";
- abbreviated name of the material;
- SDR is the dimensional ratio of the optimal outer diameter to the wall thickness;
- external profile size;
- wall thickness;
- operating class;
- maximum working pressure;
- standard number.
For example, polypropylene random copolymer SDR 11, external size 20 mm, wall thickness 1.9 mm, class 1, optimal pressure 1.0 MPa:
Pipe PP-R SDR 11-20´ 1.9 class 1/1.0 MPa GOST R 52134-2003.
Marking can also be done indicating the structure of the product, type of material, nominal pressure, category and area of application.
Product structure:
- S—single-layer pipe;
- M - multilayer;
- TI - with thermal insulation;
- PP - standard polypropylene;
- PP-RP - products that can withstand high pressure.
Material type:
- PPB - increased mechanical strength, for hot water in underfloor heating systems;
- PPH - with increased internal diameter (ventilation and cold water supply);
- PPR is a universal pipe with elevated operating temperatures.
Pressure indicator:
- PN 10 - operating pressure 1.0 MPa, temperature - +20...+45°C;
- PN 16 - up to +60°C, 1.6 MPa;
- PN 20 - pressure 2 MPa, temperature - +95°C;
- PN 25 - for heating and hot water supply - 2.5 MPa, +95°C.
Pipe class:
- class 1 - up to 60°C - water supply;
- class 2 - pipelines up to 70°C;
- class 3 - up to 60°C - “warm floor”;
- class 4 - heating, up to 70°C;
- class 5 - up to 90°C, heating;
- class XB - cold water.
Marking of polymer pipes for water supply allows the buyer to quickly determine whether this product is suitable for him or not.
The area of application of the composite is indicated by the color of the product:
- white - water pipes;
- gray - heating system, hot and cold water;
- black - sewerage, drainage systems;
- green - individual water supply within the boundaries of a personal plot.
As additional parameters, depending on the supplier of materials, the pipes may indicate the manufacturer’s trademark, the presence of a certificate, the date of manufacture and the serial number of the batch.
What types of soldering irons are there?
Such welding machines can be supplied separately or in a set with the necessary nozzles, scissors for cutting pipes, gloves, a building level and a tape measure. All this is placed in convenient suitcases made of plastic or metal. Such sets are supplied in metal or plastic suitcases.
Tool for cutting polypropylene pipes.
An important characteristic of irons for welding polypropylene is their power. Here you don’t need to chase heavy-duty expensive devices, since you simply won’t need them if you are designing indoor heating where there are no pipes with a diameter of more than 50 mm. For household purposes, it will be enough to purchase a soldering iron with a power of 600 to 800 W. You can guide your purchase by the attachments included with the device. Their diameter corresponds to the pipes that the device can solder.
When choosing a soldering iron, important attention should be paid to the thermostat. The quality of the resulting weld depends on the accuracy of its calibration and the ability to “maintain” an even temperature. This circumstance is especially important for beginners, since experienced craftsmen do not need prompts from the device; they are guided by their feelings and intuition. Anyone who is just learning to solder should adhere to all standards. For this reason, it is better to purchase a soldering iron with continuously variable temperature control.
Nozzles of various diameters for soldering iron.
If you are a beginner and you are concerned about the question of how to choose polypropylene pipes for heating, then you should purchase branded, time-tested products with accompanying documents. They have all the characteristics of pipes, and most importantly, the melting point. This information will help you correctly set the temperature regulator on the soldering iron, depending on the diameter of the pipes and fittings, which will make the seam high-quality and completely safe for use.
Table of standard sizes of polypropylene pipes
Table of the main parameters of polymer pipes for cold and hot water supply.
Diameter, mm | Conditional bore, mm | PN10 shell thickness, mm | PN20 shell thickness, mm | Weight of 1 m/p pipe, kg |
20 | 15 | 1,9 | 3,4 | 0,106-0,172 |
25 | 20 | 2,4 | 4,3 | 0,164-0,226 |
32 | 25 | 3,0 | 5,4 | 0,266-0,434 |
40 | 32 | 3,7 | 6,7 | 0,412-0,671 |
Which PPR pipes are suitable for heating
Polypropylene pipes began to be used for heating systems relatively recently. Before this, their place was taken by solid steel pipes. Such structures were connected by welding, were durable, but difficult to install and expensive to manufacture.
Polypropylene pipes have gone through a number of important metamorphoses over their short history. Polypropylene itself does not have the heat resistance that the companies developing it expected. That is why the first heat-conducting systems with such pipes quickly fell into disrepair, and they began to be skeptical about the material itself.
At the moment, polypropylene pipes have been significantly improved. There are various models that are used to supply cold and hot water, heat supply and sewage disposal. When carrying out repairs, it is important to choose pipes that are designed for specific purposes, otherwise the structure will not be suitable for use.
It is important! At the moment, there are many companies producing and selling pipes for heating systems. It is advisable to buy pipes along with all components from official suppliers in specialized stores, since there are many low-quality fakes.
Types of PPR pipes
Polypropylene pipes are used in various areas, but not all are suitable for heating. In pursuit of cheap material, you may buy the wrong type of pipe that could withstand hot water under pressure. It is important to be able to distinguish one type of pipe from another.
The classification of polypropylene pipes is as follows:
- RR-N. This is the first generation of polypropylene pipes. This model has all the properties of the base material. PP-N are hermetically sealed and resistant to high pressure, in addition, they do not enter into chemical reactions. However, melting of such a pipe can begin already at a temperature of 50 ͒ C. Such pipes are used in cold water supply systems, ventilation and for industrial purposes;
- RR-V. During the production of this type, the formula of the material was slightly changed. The pipes turned out to be stronger and more durable, but they still could not withstand temperature fluctuations. Such pipes have the advantages of previous generation and, in addition, better withstand the effects of hot temperatures. However, they are unsuitable for heating systems and even hot water supply. Such pipes are often used in sewer construction;
- PP-R. In the production of these pipes, in addition to polypropylene, ethylene is used. This allows them to withstand high temperature loads. In addition, such pipes, as a rule, are reinforced, which allows them to withstand temperatures of more than 100 ͒ C. Reinforced PP-R pipes are the most suitable option for a heating system.
We recommend that you read: Types of saddles for polyethylene pipes and features of their use
Reinforced pipes
Reinforcement is the process of covering a pipe with a material that, in terms of strength or other properties, is superior to the main material of the structure. In the case of polypropylene pipes, reinforcement means coating the pipe with metal, which retains heat and prevents pipe deformation under the influence of high temperatures. Reinforcement can be of two types:
- Aluminum. In this case, the surface of the pipe is covered with aluminum foil. Sometimes such foil is embedded between layers of polypropylene. Aluminum does not allow PPR to expand and change its shape. However, such pipes have one significant drawback - they can delaminate. Delamination occurs if the pipe is made of low-quality materials or is improperly joined to another pipe;
- Fiberglass. This coating is woven between layers of polypropylene. This makes the delamination process impossible. Such pipes are integral and do not deteriorate due to improper installation or operation. The service life of PPR with fiberglass coating is longer, however, such pipes are more expensive.
Technical characteristics of heating pipes
The characteristics of pipes are based on resistance to various factors that act during operation. When choosing pipes for a heating system, you need to pay attention to the following parameters:
- High pressure resistance. Reinforced polypropylene pipes can withstand a system pressure of 6 atm. at a temperature of 70 ͒C. The higher the temperature, the less resistance to pressure. In the heating system, hot water is not supplied at maximum pressure;
- Temperature resistance. Polypropylene pipes with reinforcement begin to melt at a temperature of 120 ͒ C. In the heating network, the temperature rarely exceeds 70 - 75 ͒ C, which creates a reserve of heat capacity in the system. PPR can withstand frost worse than heat;
- Non-corrosive. The main disadvantage of metal pipes is the possibility of reacting with water. Sooner or later, such pipes rust and cease to be airtight. Polypropylene does not corrode when exposed to water. Moreover, it does not react with salts and other impurities that may be found in the system;
- Durability. Manufacturers promise a pipe service life of half a century, but do not give guarantees. In fact, the durability of the structure depends on the type of reinforcement, the correct installation, the temperature inside and outside the pipes, and the pressure in them. If you follow all the recommendations, you can forget about repairs for several decades.
It is important! Polypropylene pipes can be installed outdoors only for residents of the southern regions. When the temperature outside the system is less than -15 ͒ C, polypropylene becomes brittle and pipes may break. Such designs are only suitable for pipelines located indoors.
Selection of heating pipes
For heat pipes, it is better to give preference to polypropylene with fiberglass reinforcement. However, pipes made of this material are also different. They vary in diameter and ability to withstand a certain pressure in the system. The following categories of pipes are distinguished by diameter:
- Less than 1.6 cm. Such pipes are suitable exclusively for underfloor heating systems. This diameter should be sufficient if the pipes are installed correctly;
- 2.0 - 2.5 cm. The most popular diameter when installing heating in a house or apartment. For the riser that goes into the apartment, a diameter of 25 mm is required, and pipes of 20 mm are installed in the rooms;
- 2.5 - 3.2 cm. This category is used in multi-storey buildings with centralized heating;
- More than 20 cm. Pipes of this diameter are needed for large organizations. For example, hospitals with many departments, wards and offices.
We recommend that you read: Marking and quality of polypropylene pipes
It is not difficult to determine the pressure that the pipes can withstand. Just look at the PN marking and the number after it. Thus, PN 10 can withstand a pressure of 10 atmospheres at a temperature of 45 ͒ C, PN 16 - 16 atm. at a temperature of 60 ͒ C, PN 20 - pressure 20 atm. at a temperature of 80 ͒ C, PN 25 - 25 atm. at a temperature of 100 or more ͒C. For the heating system, you must choose at least PN 16, preferably PN 25.
Thus, the best option for heating pipes is fiberglass-coated polypropylene pipes with a diameter of 2 - 2.5 cm and marked PN 25.
How to choose a diameter
When choosing pipes, in addition to quality characteristics, you need to take into account the outer and inner diameters of the product, the size of which affects the hydrodynamic properties of the system.
Pipeline capacity depends on many factors, including:
- number of sources;
- purpose of the water supply;
- pressure force;
- maximum load;
- number of branches (consumers);
- distance between the starting and ending connection points.
Connection to the central water supply for individual use is made using pipes Ø 32 mm. For internal networks, profiles with an outer diameter of 16-25 mm are used.
In everyday life, water pipes from 20 to 32 mm are considered the most used.
General recommendations on how to choose polypropylene pipes
If you decide to choose polypropylene pipes, then before purchasing, take a look at the manufacturer’s official website. You need to do the following:
- Remember the logo, the font used, the letters and their color, the number of large letters. In other words, you need to look very carefully at the logo and its spelling. In fakes they usually change/omit/double one of the letters. Thanks to this, companies can avoid claims, since if the letter is different, then the brand is different.
- Now you need to study the assortment and first select what you need. After this, study the color and location of the markings. This will help you in the store to distinguish the product from a fake (if the store contains a product that differs in color or any details, then it is a fake). In this case, we recommend going to another store and choosing something of better quality there.
- Please review product samples before purchasing. Pipes and fittings from good companies have smooth walls (both external and internal). They have no sagging, depressions or other defects.
- Consider the cut of the pipe or fitting. The wall should have the same thickness. In a reinforced pipe, the reinforcing material is surrounded by polypropylene rings of equal thickness. If you can see with the naked eye that it is uneven, then you should choose another product.
Thus, in order to choose a good polypropylene pipe, you need to pay attention to many details, and you should have a good overall impression of the product.
Which polypropylene pipes are better for water supply?
In order to find out which type of product is most suitable for hot and cold water, you must first choose the manufacturer of the material, read the recommendations and, based on this, make the right choice.
For hot water
When installing hot water supply, it must be taken into account that polypropylene pipes have a relatively high thermal expansion. Thus, with an increase in temperature by 10°C, the length of unreinforced products increases by 1.25 mm/m, and improved ones by an average of 0.32 mm/m.
In this regard, for the equipment of such systems it is necessary to use exclusively reinforced types of propylene pipes.
The temperature of supplied hot water for individual users is within +45…+75°C.
Therefore, to ensure uninterrupted supply, pipes designed for use in this temperature regime are suitable - these are grades PN 20 and PN 25 with an optimal pressure of 2.0-2.5 MPa.
For cold water
Unlike hot water, both single-layer and multi-layer pipes are suitable for cold supply. The main requirement for laying a water pipeline is the pressure of the liquid and the distance to the source.
In terms of price-quality ratio, more suitable materials are single-layer pipes with an operating temperature of up to 20°C and an allowed pressure of up to 10 bar. According to the designation, such pipes belong to service class 1, white or gray, grades PN 10 or PN 16.
How to choose a soldering iron for polypropylene pipes
In this section of the article we will try to figure out which machine is best to choose for welding polypropylene pipes?
Soldering irons are almost the same in design, but in order to choose the most suitable one, it is necessary to take into account the difference in the method of attaching the nozzles to the heating surface.
The soldering iron consists of the following parts:
- body with handle;
- welding heating element in a cast metal casing;
- thermostat;
- special nozzles.
A soldering iron is very similar in design to an iron. These devices differ from each other only in purpose and shape. A soldering iron, like an iron, has the main elements of a powerful heating element and a thermostat. The heating element is mounted in a flat or round housing.
In order to choose the most suitable mounting design for working attachments, you need to pay attention to the shape of the body. The soldering iron works according to the following scheme: the heating element is connected to the electrical network and heats the plate, and it heats the nozzles.
Heated nozzles transform polypropylene into a viscous mass, which allows you to create a hermetically sealed pipe connection. The nozzles should ideally be heated to a temperature of +260 °C, to maintain which the thermostat operates. This device is necessary to ensure that the propylene does not overheat, otherwise it will become too liquid, “leak” and this will reduce the diameter of the pipeline or damage it.
If the heating is insufficient, the tightness of the connection will not be sufficiently reliable. The temperature regulator performs another important function - it protects the heating element, preventing the metal head of the tool from melting. Cheaper soldering irons have built-in low-quality thermostats, due to which polypropylene pipes may not be heated enough or, conversely, too hot. This will negatively affect the quality of the work performed by the installer.
In order for the soldering iron to work well, you should choose a high-quality nozzle, which directly determines how the joint will turn out. The nozzles have different coatings. It is important to choose them in such a way that the non-stick layer has sufficient thickness. It is most reliable if the nozzles are coated with Teflon or metallized Teflon, which is even more durable. Both materials are heated evenly at the ends of polypropylene pipes.
Read material on the topic: Advantages of polypropylene pipes
In order to choose this device correctly, you need to pay attention to its characteristics.
Power
The most important indicator of the quality of a soldering iron. It determines what the maximum diameter of the polypropylene pipes to be connected and the heating time of the soldering iron can be; therefore, the power affects the installation speed, which is very important when it is necessary to perform large volumes of work. You cannot think that it would be better to choose a device that requires a lot of power. Often, buyers purchase a device with a power of 1.5–2 kilowatts, but this is the wrong approach.
In order to choose a soldering iron of the power you need, remember the rule: multiply the diameter of the pipes to be connected in millimeters by 10, this will be the minimum power of the device in watts. To carry out work on installing pipes in an apartment, a soldering iron with a power of 700 W is suitable (the diameter of the pipes is usually 16–63 mm). We recommend that professionals choose more powerful devices of 1.5–2.0 kW, since the diameter of the connected polypropylene pipes is more than 100 mm.
Set of nozzles
The work you do will be more efficient if you install several attachments on your soldering iron at the same time. This will improve the functionality of the device and its usability. Nozzles, as a rule, come complete with the purchased device; they are suitable for soldering polypropylene pipes of standard diameter. The 20th nozzle is used to connect metal pipes with a diameter of 0.5 inches, the 25th and 40th nozzles are used for pipes with a diameter of 0.75 and 1.25 inches. If it becomes necessary to connect polypropylene pipes with a large diameter, nozzles will have to be purchased separately. A hand soldering iron can be used to install polypropylene pipes with a diameter of no more than 63 mm (this corresponds to a steel pipe with a diameter of 2 inches).
In order to choose the nozzles you need, you need to take into account the performance of the device: the value of this indicator directly affects the size of the nozzle diameter. In addition, it is important to take into account the specifics of the work being performed. Here you need to answer the question: what diameter of polypropylene pipes should you choose? For professional repairs, pipes with a diameter of 10 to 110 millimeters may be required. Home craftsmen only work with sizes of 16 mm (0.5 inches), 24 mm (1 inch) and 32 mm (1.25 inches). There is no need to buy any other attachments, since the sizes listed above are quite sufficient for non-professional repairs.
It is also important to choose the right construction material for the nozzle. Preference should be given to materials with good thermal conductivity and Teflon coating. To do household work you only need 2-3 attachments, so it will not be difficult to purchase quality products.
Heating temperature and thermostat
Welding machines used to connect polypropylene pipes are heated, as a rule, to a temperature of +50... +300 °C. The most common equipment is one that operates at a temperature of +260 °C. It is important that the symbols on the thermostat scale are written clearly and legibly; the position of the flywheel must be securely fixed so that if accidentally touched it does not change the set temperature.
You can choose a device that provides a digital indication of the heating temperature. For home use there is no need for such a function, especially since it increases the cost of welding equipment.
You can choose a device that has a built-in power button, which makes using the tool somewhat easier (no need to insert/pull out the plug into the socket). If the device is designed for professional work, then it may have two heating stages that can be switched if necessary. If you decide to choose a device that is of particularly high quality, then it will most likely be equipped with an emergency system for disconnecting from the network in the event of a threat of overheating.
Device ergonomics
The device should be comfortable to use. It is important that its handle fits comfortably in your hand, is covered with an anti-slip layer, and does not heat up.
The design and reliability of the stand is also an important detail. If you decide to choose tripods or arcs, then be prepared for the fact that they can slide on the flat surface on which they are installed. It is better to purchase a device with a stand in the form of a platform. In the case where you plan to carry out most of the work in the workshop on a workbench, you should choose a welding soldering iron on a stand; it should be equipped with a clamping device for fixing on the edge of the work surface, this is how you can achieve maximum stability.
Equipment
It is often more profitable and convenient to buy a device that is already equipped with all the necessary tools and accessories. As a rule, they are packaged in a compact metal case, which is very convenient for the master.
The device comes complete with a stand, couplings and mandrels of six different diameters, screws, a screwdriver and an allen key for installing equipment, special scissors for cutting polypropylene pipes, a tape measure (there may also be a small bubble level for precise marking and alignment of pipes at the installation site ), work gloves to prevent burns.
You don't have to buy it all as a set, but buying these items individually will cost more.
Features of the use of polypropylene pipes in the heating system
When determining which brand of pipe can be used for heating, it is necessary to take into account the supply temperature, which depends on the characteristics of the installed heating devices, their technical capabilities, the type of expansion tank and the method of recharging the system.
The higher the water temperature, the shorter the service life of propylene pipes for water supply and heating.
In an apartment, the cross-section of polypropylene water pipes should be equal to the internal diameter of the supply pipelines (risers). It should be taken into account that the wall thickness of polymer pipes is greater than that of steel reinforcement. In a private house, central wiring is carried out with a Ø 32 mm profile, connection to radiators is carried out using pipes with a cross-section of 20-25 mm.
For individual heating, multilayer reinforced products are used, but it must be remembered that for products with aluminum foil, the linear expansion is much greater than for products with a fiberglass layer.
When using a floor heating system in a private house, the pipes are calculated based on the design temperature of the structure, the type of room and the area of the heated area. The heat exchange limit is within the range of +35…+45°C.
Turkish quality or soap bubble?
Among the wide variety of polypropylene pipes, Turkish pipes occupy a separate place, which is rightfully deserved. Let's look at seven types of polypropylene pipes that have reliably established themselves in the domestic market.
TEBO pipes and fittings
TEBO technics. TEBO technics brand pipes are produced Ø20–Ø160 mm. They are used for water supply and heat supply in industrial enterprises. They do an excellent job of transporting various aggressive chemical mixtures. The TEBO technics product line includes the production of PN10 and PN20 pipes. This type of polypropylene pipes is intended directly for creating water supply networks. The Turkish company TEBO technics produces reinforced and fiberglass pipes. According to TEBO technics, it ranks in the middle suitability class. There should be no problems working with these pipes.
Pilsa
Pilsa. Unlike other polypropylene pipes, Pilsa is elastic, durable and wear-resistant. Due to this, these pipes are successfully used in cold/hot water supply systems and heating systems. It is customary to use Pilsa PN20 for the heating system and hot water, and PN10 for cold water supply. For several years after their installation, you will not have to worry about their maintenance. The most important requirement is compliance with installation technology.
Pilsa polypropylene pipes cannot be hidden in the wall. To use these pipes in a heating system, it is necessary to use a controlled boiler, as otherwise temperatures of more than 95°C may be given.
For objectivity, one drawback of Pilsa pipes should be noted. After stripping the pipes of aluminum, it may partially remain on the surface. This is explained by the fact that the pipes have a slight ovality.
Wesbo. The Turkish plant Novoplast produces polypropylene pipes, which are known as Wesbo. Although the price of these products is low, they are of high quality. However, as for the set of shaped elements, there is a big minus here, since the choice is very small. But this is perhaps the only negative, which is why they are also very popular in our market.
Valtec
Valtec. Turkish Valtec pipes are of the best quality. Fittings of the PP-R 100 brand are produced here, which allows the pipes to have greater reliability and strength. The pipes have a perfect round shape. The placement of foil in reinforced pipes is ideal.
Firat. Fittings and pipes of the PPRC system from the Turkish company Firat are manufactured in accordance with all existing international quality standards. For many years the company has occupied leading positions. These pipes are easy to install and further maintain. They don't rust.
The only drawback of Firat pipes is their high expansion coefficient when heated. If you use them in hot water supply, the Firat pipes may fail.
Kalde. Kalde pipes are often compared to Ekoplastik. But this comparison is biased, since Kalde pipes have a continuous shell of aluminum. Ekoplast has a perforated shell. The interior is gray Kalde plastic. According to reviews, Kalde polypropylene pipes are softer and more pliable, and due to the lack of perforation on the aluminum layer, delamination of the pipe may occur.
If you do not follow Kalde pipe installation technology, bubbles appear on the surface of the pipes. Their laying is allowed only outside the wall.
Turkish pipes
Jakko. The company produces high-quality polypropylene pipes - reinforced with fiberglass. During the soldering process they show their best side. Joints can only leak if the specialist who soldered them has no experience. Although most often problems arise when soldering hot water supply and heating. For cold water, Jakko pipes are ideal. Although the manufacturer claims a minimum level of linear expansion, sagging is observed on a route of more than nine meters.
To cope with the problem of sagging, compensators can be installed in the pipeline. On average every four meters.
Installation and wiring - what are the nuances?
The structures of polypropylene pipes are one-piece. They are mounted using diffusion welding. Special fittings are used to install internal outlets. When connecting plastic and metal parts (faucets, mixers), corner joints with pressed-in brass segments are used.
Polymer pipelines are suitable for all types of installation:
- in separate channels and shafts;
- exposed wiring on the surface of the walls;
- closed laying in a layer of cement-sand screed or plaster.
Work order:
- Plastic pipes are cut with special scissors included in the equipment assembly kit.
- Measure the distance with a tape measure and use a pencil or marker to transfer this value to the surface of the product.
- The junction area is thoroughly degreased. Pipe markings that fall within the installation area must also be removed.
- Nozzles are installed on the unit and plugged into the network. The heating temperature regulator is set to 260°C. The heating time of the material is controlled by a burning light bulb. When the operating temperature is reached, the indicator goes out.
- The prepared parts are put on welding attachments. Wait 7 seconds and remove the blanks.
- Quickly, without rotation, the pipe is joined to the fitting and pushed to the specified level.
- Before installation, the finished connection must cool and gain strength (2 minutes).
- It is better to pre-assemble complex components, such as a manifold, branches, and then install the entire set in place.
- When installing water pipelines on walls and ceilings, it is not recommended to use fixed supports.
Popular manufacturers
For those who choose polypropylene pipes for water supply, prices are of great importance.
- Budget products include domestic products from the Politek, PRO AQUA, Santrade, RVK and Heisskraft brands.
- Products from China are also inexpensive, but you should carefully choose the manufacturer. Experts recommend choosing well-proven brands Dyzain and BLUE OCEAN.
- The average price category includes polypropylene pipes from Turkey that are cheaper compared to European manufacturers and somewhat inferior in quality to their products: Kalde, TEBO, FIRAT, Pilsa, Vesbo, Jakko.
Products from Europe traditionally remain the most expensive.
- The quality of German manufacturers is considered impeccable: Rehau, Banninger, Wefatherm, Aquatherm.
- The products of the Czech brands EKOPLASTIK and FV-Plast are somewhat inferior to them.
The main disadvantage of polypropylene pipes from Europe remains their high cost.
A brief description of the types of products, their labeling and purpose will help you decide how to choose polypropylene pipes for water supply, and recommendations from experts will guide you in the variety of products from different manufacturers. It is important to find the optimal compromise and price-quality ratio so that the system lasts a long time, but does not require excessive costs.
What determines the service life
The main quality parameter of composite pressure pipes is their service life, which depends on the characteristics of the source material and the conditions of use - operating temperature and pressure.
Under standard operating requirements, the operating cycle of water pipelines for cold and hot water supply is 25-50 years, respectively.
Standard conditions provide for the use of water supply systems within the boundaries of the recommendations provided by the manufacturer. Exceeding the permissible temperature and pressure leads to softening and rupture of the material structure, which affects the service life of the product.
Advantages compared to other types
Let us list the main advantages of pipes made of polypropylene :
- Reliability . They do not corrode; the service life, subject to the requirements for media temperature and pressure, is 50 years for hot water.
- Pressure stability , which is achieved by the absence of deposits on the internal walls.
- Due to the elasticity of the material (2.5 times greater than steel), there is no risk of rupture of the line if “defrosting” occurs: under the influence of water turned into ice, the dimensions of the pipe will change, but destruction will not occur. With increasing temperature, all sizes will return to their original state.
- Silence . Noises that may arise when the coolant moves are almost completely eliminated, because the material absorbs noise, unlike analogues made of metal.
- Low thermal conductivity reacts poorly to temperature changes and prevents the formation of condensation, which again distinguishes it from “metal” competitors. Heat loss during the delivery of coolant to heating radiators is also reduced, unlike metal analogues.
- Light weight . Metal pipes of similar size are 9 times heavier, which means that the use of analogues made of polymer materials significantly facilitates transportation and installation.
- Low price.