Polypropylene pipes for the heating system

When it comes to keeping our homes warm and comfortable, the efficiency of our heating systems is paramount. One crucial component that often goes unnoticed but plays a significant role in the functionality of a heating system is the type of pipes used. Polypropylene pipes have emerged as a popular choice for heating systems due to their numerous advantages over traditional materials. Let"s explore why polypropylene pipes are gaining traction in the realm of heating and insulation.

Polypropylene pipes are a good fit for heating systems because they have a number of benefits. First of all, even in challenging environments, they will last a long time due to their exceptional resistance to corrosion and chemical reactions. Polypropylene pipes do not corrode over time like metal pipes do, which lowers the possibility of leaks and expensive repairs.

Excellent thermal insulation is another advantage of polypropylene pipes. Because of their low thermal conductivity, these pipes reduce heat loss when hot water circulates through the system. This efficiency helps keep the house at a constant temperature, which improves occupant comfort levels in addition to saving energy.

In addition, compared to more conventional materials like copper or steel, polypropylene pipes are easier to install because they are flexible and lightweight. Their adaptability to different layouts and their flexibility eliminate the need for joints and fittings, which can be weak points in the system and enable more flexible routing within the home.

Furthermore, polypropylene pipes have a reputation for being resistant to sediment buildup and scaling, which are common problems in heating systems that can lower efficiency and necessitate frequent maintenance. Polypropylene helps maintain ideal flow rates and performance by reducing the buildup of debris within the pipes, guaranteeing the heating system continues to function properly for many years to come.

To sum up, polypropylene pipes present a strong argument for heating systems due to their resilience to scaling, longevity, thermal efficiency, and ease of installation. The benefits and versatility of polypropylene pipes make them a worthy consideration for any project, as both contractors and homeowners are looking for dependable and affordable solutions for insulation and heating.

Choice

Thus, we need to buy supplies for a self-sufficient heating system. Which signs to look for and how to select polypropylene pipes?

Reinforcement

Reinforced polypropylene is the material of choice for heating. Point, paragraph.

Why specifically him? Yes, reinforcing with the same wall thickness raises the pipe’s maximum working pressure from 20 to 25 kgf/cm2, but both values are obviously unnecessary for the autonomous circuit.

The truth is that the material with the highest coefficient of lengthening when heated is polypropylene. Оогда температура теплоносителя повышается на 50 градусов (т.е., с комнатной температуры до вполне достижимых в автономном контуре 70 — 75С), каждый метр трубы удлиняется на 6,5 мм.

You can assess the disaster’s scope thanks to the photo.

Aluminum and fiberglass are used to reinforce pipes. The corresponding pipe types vary not only in terms of production technology but also in terms of the reinforcing material. In the first scenario, during the extrusion process, the reinforced polymer layer is fused to the inner and outer shells to form a single unit; in the second, a layer of aluminum foil, roughly half its thickness, is bonded between the two polymer layers.

When the pipe is heated, reinforcement greatly minimizes the pipe’s lengthening. I’ll provide typical values for the two kinds of reinforcement as well as the same parameter for a steel pipeline for comparison’s sake.

Material	Lengthening when heated by 50 ° C, mm/m.Pog.
Polypropylene with fiber reinforcement (chopped fiberglass)	3.1
Polypropylene with reinforcing aluminum foil	1.5
Steel	0.5

Brands

Naturally, pipes with aluminum reinforcement are the option we choose. But there is one subtlety in this instance.

Although you pay more for the brand when purchasing pipes from a well-known manufacturer (Rehau, Valtec, etc.), this is a guarantee of high-quality goods. For pipes made of aluminum, this entails using premium glue and adhering to all technological specifications.

The product quality is guaranteed by the manufacturer’s name.

However, when purchasing goods from unidentified manufacturers, buyers should pay special attention to the fiber reinforcement pipes because it is difficult to damage them due to variations in production technology. Yes, an alluring price frequently surpasses other benefits in the eyes of the buyer. Layers with reinforcement and those without will always cook together during the extrusion process.

Diameter

It is common practice to designate a steel pipe’s conditional passage, a parameter denoting compatibility with a specific pipe thread size. The steel pipe’s conditional passage is roughly equal to its inner diameter.

Polypropylene tubing is identified by its external diameter marking. Consequently, the steel with the same nominal size will be noticeably conceded to its throughput.

The polypropylene pipe’s inner diameter is significantly smaller than its outer diameter because of the walls’ substantial thickness.

The square of the internal diameter of the pipe determines its internal section and, consequently, its throughput. When it is cut in half, the section is cut in half as well.

For this reason, the size of the polypropylene pipes should increase by one or two steps when replacing the steel pipes (e.g., from DU20 to DU32, from 25 mm to 32 mm, and so forth).

The following measurements should be followed when creating the cottage’s autonomous heating system:

• Eyeliner to the radiator – 20 mm;
• Rosliv with forced circulation – 25 – 32 mm;
• Rosliv with natural circulation – 40 – 50 mm.

The minimum hydraulic pressure is a characteristic of the natural circulation heating system. The diameter must be increased to make up for it.

Features of polypropylene pipes

Another common polymer used in construction is polypropylene. It is well known that polypropylene is strong. The material under consideration will unquestionably outperform less expensive plastic samples in terms of both density and the type of reaction to the carrier’s operating temperature.

For this reason, polypropylene pipes started to be used as basic components for sophisticated heating, water supply, and other systems.

The polypropylene pipe is made of a single plastic piece that has been spilled into the shape of an oblong, round workpiece. This is typically just a regular pipe with thicker walls. Products made of polypropylene have walls that are as thick as 1 cm, whereas pipes made of metal-plastic and other polymers have walls that are between 2 and 5 mm thick.

Even with its weak expansion, polypropylene reacts to too much heat. For this reason, samples of regular polypropylene started to be further reinforced with foil or fiberglass. This is carried out in accordance with a system that is comparable to the one used in the manufacture of metal-plastic pipes.

As a reinforcing layer, only lightweight materials like foil or fiberglass are utilized. As a result, the reinforced pipe walls’ thickness likewise rises noticeably.

Advantages and disadvantages

Metal-plastic pipes and polypropylene share many properties because they belong to the same class of polymers and are essentially similar to one another. There are some distinctions, though.

Examine the distinct benefits of pipelines made of polypropylene:

• Extremely low pipes weight;
• Low price (except for reinforced samples);
• The ability to use welding fittings and diffusion welding during installation;
• Pipes do not need preliminary processing, turning or cleaning (except for reinforced samples);
• Maintain high pressure;
• Do not carry out electricity, can be used as a ground.

Metal-plastic high-pressure pipes in the context of

The primary benefit of polypropylene is that it is an entirely pure plastic devoid of any impurities. It is incredibly simple to use. Nothing needs to be calibrated or cleaned.

Even with thick walls, the pipe is severed using standard pipes for pipes. Cleaning is either done because the turn has to rotate multiple times or is not necessary at all. Furthermore, the entire procedure only takes a few seconds.

Additionally, polypropylene pipes can be joined with chemicals or welding fittings, which is a very practical method. The primary benefit of plastic pipes is their welded joints, which are simple to make while maintaining nearly the best tightness and quality of connection in their class.

• The cost of reinforced polypropylene is practically equal to the cost of metalloplasty, with a difference in working characteristics, not in favor of the first;
• Less strength;
• Pipes can not be bent manually, they can crack;
• Polypropylene worst the cycles of defrosting and frost.

Products made of polypropylene are plagued by the same illnesses as regular plastic. Regretfully, they cannot be eliminated without a substantial alteration, which is metal – plastic.

Tips for choosing pipes for heating a house (video)

So what to choose?

So which pipes should I pick? Ultimately, there are many benefits associated with both options, and the drawbacks are negligible—especially when contrasted with less popular alternatives.

We advise you to assess the pipeline project based on a number of factors. By taking this action, you will be able to make decisions while also adding to the bigger picture.

Evaluate the following elements:

1. Potential loads on the water supply.
2. Do I need to disassemble it in the future.
3. Whether the pipe is laid down the street.
4. The level of working pressure.
5. How difficult the wiring is, is the pipes to bend.

After responding to all of these inquiries, take another look at the previously provided list of each material’s properties. And you’ll most likely discover the solution.

In summary, polypropylene is perfect for household water supply systems in private homes and standard water pipelines because of its affordability and usefulness.

It can also be carefully laid along the street.

Although metal-plastic is more costly, it has many working diameters, can withstand high temperatures, does not burst under heavy loads, and is available in a variety of models. It can be utilized both indoors and outdoors. Concurrently, collapsible pipelines made of plastic and metal are gathered.

One major benefit is that since the pipe can be bent, you probably won’t need any angular fittings at all, which improves the system’s overall stability.

Other similar articles on the topic:

Apartment and house

Both homes and apartments have heating systems. However, they differ in terms of loads and structure. More conditions are applied to apartments.

Apartment: This is because there are heavy loads on the systems in apartments. Of course, during the heating season, if it exceeds normal indications, it is insufficient. Depending on your house’s height, floor, and other factors, the pressure in the pipes will range from three to eight atmospheres. However, pressure can rise several times while the system is being cleaned and undergoing "assessment." Thus, the heating pipes you select need to be sturdy!

House: In a private residence, pressure levels are typically between two and three atmospheres. Therefore, the requirements are a little less complicated for private residences.

Materials for manufacture

While polypropylene can vary and have different properties, it is evident that it is a plastic (polymer). The primary molecular structure variation is:

• Homopolymers. Simple compounds in which all the smallest particles have the same structure. Such material is marked by the letters of the RRN;
• Block-polymer. Complex compounds that consist of homopolymers, like a house of bricks. In this case, not one type of bricks is used, but a few. That is, different homopolymers have different structures. The alternation of bricks is strictly ordered. Are marked by the letters of the RRV;
• random-polymer. The strongest material, the structure of which consists of crystals. Markets are launched by the letters PRR.

Aluminum-reinforced propylene pipe

Additionally, the presence of reinforcement is indicated by materials that are tandem, such as PP-R \ Al \ PP-R. This indicates that there is an aluminum layer sandwiched between the two polypropylene layers. What is the purpose of reinforcement? There is no need for strengthening other than to offset linear expansion. Since non-designated propylene pipes have an excessive expansion coefficient of 0.15 mm/m, they are not used for heating. When the temperature rises by one degree, the pipe is extended by 0.15 mm for every meter in the circuit. Twenty degrees of coolant marks the start of the countdown.

There are two types of materials used to reinforce:

• aluminum (continuous or perforated);
• fiberglass.

Fiberglass pipes expand linearly at 0.035 mm/m, while polypropylene pipes reinforced with aluminum expand linearly at 0.03 mm/m.

The quality of the glue used to secure the layers is crucial; if it is used poorly, there may be a delay. As a result, bubbles will form on the circuit and air will drop beneath the skin.

Assume that this is a catastrophe, but what’s scary is the scenery and how ugly it is. In this instance, incorrect installation may have caused the bubbles to form, but more on that later.

Wall thickness and diameter

Just numbers are used to represent these values. For instance, 16 x 2.5, 16*2.5, or Ø16 S2 is another option. 5. They all indicate that the product’s walls are 2.5 mm thick and have an outer diameter of 16 mm.

Keep in mind that the outer size of the product, rather than a conditional passage, is indicated on the marking of polypropylene pipes. This is significant because conditional passage is taken into account when calculating the diameter of the heating pipes.

The external to internal diameter ratio

For convenience, a plate with values for wall thickness and internal and external diameter for products with varying nominal pressures is provided here.

Represented by two digits and letters. For instance, the iv16 version of pn20 might match. The digital value represents the number of atmospheres in which the product will function at a coolant temperature of 20 degrees for the duration of the warranty. The 50-year lifespan of polypropylene pipes is guaranteed by the manufacturers.

You have to be aware that this number was determined through a specific program’s calculation method. It establishes other, less frequently followed settings in addition to ideal conditions. There haven’t been any complaints or refutations thus far; if there are, the bureaucratic system will undoubtedly find something to complain about, such as the circuit’s water being too hard or vice versa.

Also read about the pressure in heating and autonomous systems.

Reviews reinforced with fiberglass

Since then, there have been significantly fewer installation issues since they started installing the PP network. However, the structure’s sagging due to thermal expansion necessitated a highly precise calculation of the compensator’s size and location.

The problem of sagging could be resolved with the appearance of reinforcement made of aluminum sheets; however, the co-carving of individual highway sections became more difficult because the aluminum’s connected areas needed to be cleaned. In contrast to pipelines that are not reinforced, the quality of the junction itself decreased at the same time.

Fiberglass is a great substitute for aluminum. The inner and outer layers are connected to the middle layer during production. The primary distinction lies in its monolithic structure. As a result, deformation in the form of thermal expansion can be avoided in this situation.

Crucially, a tubular variety enhanced by fiberglass has walls that are thinner than those that are not reinforced, which calmly permits the installation of these systems in the walls.

You should pay particular attention to these technical characteristics as they favorably select materials reinforced with fiberglass.

DIY heating installation

It is possible to install the heating system separately. The most important things are to select the appropriate materials, match them accurately, and hermetically join. The design itself is fairly easy to assemble and use.

Which connectors are used

Special connectors are required to join pipes together, as well as to attach pipes to radiators, risers, manometers, and other appliances. There are differences between the following types:

• Direct (ordinary couplings). They are necessary in those places where one pipe is connected to another of the same diameter, but not at an angle;
• Curved. Used in places of bending and rotation of the system;
• Triple. They are necessary if two or two of two, one must make from one pipe – one. For example, in the places where the branches are left from the main pipe to the radiator;
• Blind (plugs). They are installed in “dead end” zones, for example, on extreme radiators;
• With a change in the internal section. They are used when the pipe is switching to a smaller diameter pipe. For example, when connecting pipes with risers;
• With plastic and metal. Such connectors are necessary in a place where there is a transition from plastic products (pipes) to metal (radiators, pressure gauges, tanks).

Prior to beginning installation work, the proposed system’s exact diagram must be recreated on paper, and the quantity of each type of connector must be determined.

Furthermore, it is crucial to select connectors whose internal section diameters match the pipe diameters.

Installation algorithm

You can start the installation process after designing the heating plan and acquiring all required components.

You will need a specialized set that includes a soldering iron, shaders, and nozzles for couplings and drones in order to accomplish this.

You can rent it instead of having to buy it in order to install a single heating system.

It’s crucial! When working, it’s advised to purchase more details than you’ll need initially. The disconnected parts are no longer usable due to improper welding, so you must take new ones.

The following is the installation algorithm:

1. Pipe cutting and laying up connectors. This is the preparatory stage, which is important to perform strictly according to the instructions. Pipe cutting is carried out using special scissors.
2. The cleaning of the pipes by Shaver. This stage is necessary only when installing pipes with aluminum reinforcement. To do this, take a shaver and put it on a pipe, rotations are performed manually or with a screwdriver.
3. Assembly of a soldering iron. Clushes and dorms of the corresponding diameter are put on the device, after which it is turned on and waited for heating to 260 ͒s. On the pipe at this time, a mark of the depth corresponding to the connective element is made.
4. Compound. The pipe is inserted into the coupling of the heated soldering iron to a certain depth, and in the Dorn on the other hand there is a connecting element, after which the elements are soldered to each other for a certain time. Time is calculated as follows: with a pipe diameter 1.6 cm – 5 seconds, 2.0 cm – 7 seconds, 3.2 cm – 8 seconds.
5. All other sections of the pipes are collected in a similar way, after which they attach the structure to the heating system.

Features of installation in the apartment and private house

It is simpler to install a heating system in the apartment. Usually, there is one radiator installed in each room, which deviates from the standard riser. The riser and radiator are connected to the pipes after they are connected in accordance with the suggested layout.

One-pipe and two-pipe heating systems are options if multiple radiators are installed. In the first scenario, coolant is transferred from one radiator to the next. Consequently, the temperature in every radiator after this one will be lower than it was in the first. Two pipes are used in the second scenario: one to enter the liquid and the other to exit it.

Prior to beginning any work in the apartment, the housing office and the nearest neighbors must be consulted regarding the heating repair. In most cases, riser replacement is done centrally.

There will be more work involved in installing a heating system in a private home. Selecting the coolant type, boiler type, and coolant display system from the boiler is imperative, and must be done in that order.

If one lacks experience, installing the boiler itself may also present challenges. Install thermal pipeline, typically in the home’s basements. After that, pipes connect each room’s radiator to the boiler. Although these systems are highly intricate, they have one benefit: each pipe’s temperature and pressure can be changed separately.

A variety of pipe products

Four kinds of propylene pipes are available to consumers from producer companies:

1. RRN (PP, type 1) – the material of their manufacture is homopolpropylene. These products are involved in laying industrial water structures and ventilation systems (read also: “”).
2. RRV (PP, type 2) – pipes are released from the polypropylene blocksopolymer and used when laying pipelines that provide cold water supply, and to create floor heating systems. Connecting fittings and pipe products of high strength are made from the material.
3. RRV (PP, type 3) – products of this modification are made from the state polypropylene state polypropylene. Their main advantage lies in the ability to uniformly distribute the loads provided on the walls of the pipes. These products are used in floor heating structures, water supply with cold and hot water, in heat supply systems. The temperature regime in which they are allowed to operate cannot exceed +70 degrees. Only a short -term increase is allowed. In the place open for sunlight, you need to use pipes with a special shell that protects from the action of ultraviolet radiation. Pipes have excellent soundproofing characteristics.
4. RRS – products are one of the varieties of polypropylene. This type of pipe product is difficult to sprinkle and is subject to operation at a maximum temperature that is not more than 95 degrees.

We’ll look at the reasons behind the growing popularity of polypropylene pipes in home heating systems in our article on "Polypropylene Pipes for the Heating System." Compared to more conventional materials like copper or steel, polypropylene pipes have a number of advantages. Because they are lightweight, installation is less expensive and easier. They also last longer and require less maintenance because they are resistant to chemicals and corrosion. Moreover, the smooth inner walls of polypropylene pipes lower friction and increase energy efficiency. Home heating systems are increasingly choosing polypropylene pipes due to their strength, affordability, and efficiency.

Devil in detail

Reinforcement

For a long time, pipe reinforcement has been a straightforward and efficient solution to the issue of polypropylene’s thermal expansion. Stabilization of linear sizes is carried out by materials with a lower coefficient of thermal expansion. Consequently, thermal expansion drops to 0.03 mm/m*from, a five-fold reduction.

There are two primary ways to reinforce pipes:

• Aluminum foil. The pipe reinforced with aluminum is a glued three -layer sandwich, in which a thin aluminum layer is hidden between the layers of polypropylene. These pipes are greatly dependent on the quality of manufacture and, in case of violation of technology, are easily proper.
• Pipe reinforced with fiberglass, on the contrary, are monolithic structure. The fiber layer is located right in the thickness of the polypropylene pipe. These pipes are not relaxed; In addition, with a welded connection, they do not require cleaning the reinforcing layer.

For heating systems, both types of reinforcement are ideal. It is important to remember, though, that reinforcement only lessens polypropylene expansion—not eliminates it—while enhancing the pipe’s capacity to tolerate pressure.

Although the values in the diagram are approximations, they still let you see the big picture.

The temperature of the coolant

We recall that they had promised regulatory documents. However, does the heating temperature always adhere to the guidelines in the documents?

The way that pipes and water temperature interact is caused by a number of factors.

• Most manufacturers guarantee the operation of pipes at a temperature of up to 90 – 95 degrees.
• According to temperature graphs that are relevant in Russia, the upper limit – 95 – 105 degrees – the temperature of the coolant reaches only in severe frosts. At 30 – 40 degrees, which is either unattainable in the country"s essential part of the territory of the country or is an exception.
• On the other hand, with 95C in the heating system, the temperature on the supply pipeline of the heating main reaches 140C.

Due to severe frosts, thermal disturbances in the temperature schedule, and numerous resident complaints, a crude and uncomplicated solution to the heat issue is implemented: a nozzle is removed from the elevator node, which controls the water temperature in the heating system and the subsor.

Radiators and risers get direct entry to water from the main heating supply. At that temperature, polypropylene is not the only material that is hazardous—destructive.

A graph showing how the feed temperature on the street depends.

They ultimately boil down to this:

1. Polypropylene pipes should not be used in heating systems in those regions that are characterized by severe frosts in winter. If you have the average January temperature below -25, it will be reasonable to opt for pipes made of galvanized steel or stainless steel.
2. Use both hot water supply systems and in heating systems only reinforced pipes. Reinforcement and aluminum and fiber are equally applicable; In the second case, the installation of pipes on welded joints is slightly simplified. If you do the assembly of the heating system with your own hands, you will not need a reference tool. At the same time, the price of the uninfected meter of pipes with different types of reinforcement is extremely insignificant and in the unpredictable direction.
3. When installing heating systems with polypropylene, it is necessary to avoid the pipe in the spacer between the walls or ceilings. There should always be gaps for thermal expansion.

This also holds true for installing pipes on walls or floors. Additionally, when a long straight section of pipe is used, compensators—ring rounds of pipe or P-shaped brackets—are made. These allow the pipe to avoid bending in an arc when it is lengthened.

A circle of pipe serves as the most basic compensator.

About technical characteristics

One benefit is that it’s simple to combine with metal because of unique polypropylene fittings. as well as any plumbing fixtures that are already housed inside.

The chef fittings typically have 45, 33, 900, and 66 degrees of small slope. Use the soldering method if you need to join multiple polypropylene blanks together.

Pipes made of polypropylene come in a variety of colors, including black, green, white, and gray. With the exception of color, these products are nearly identical to one another.

If an apartment building is where the water supply is installed, a diameter of 16–100 millimeters is sufficient. It takes homopolymer pipelines to conduct cold water. Blockopolymer variants perform admirably in the same task.

If the marking PPR is shortened, then the design incorporates aluminum foil reinforcement. In order to minimize thermal expansion, this is required.

PPRC indicates a five-fold decrease in its coefficient. This feature is definitely advantageous when selecting pipes for the supply of hot water.

PEX-L-PEX is the designation for metal-plastic pipes, and PN-10 or PN-20 are the best options for cold water supplies.

The presence of a PN-25 marking indicates the presence of an extra layer of reinforcement, which is unquestionably advantageous.

Everybody makes a decision based on the objectives.

Installed in a home’s water supply, polypropylene pipes typically have lashes as long as four meters. The outer side of the pipeline serves as the basis for diameter measurements.

Video: How to Make a Decision

Criterias of choice

In fact, we have now nearly reached the issue of selecting heating pipes.

What should you look for when making a purchase? Please provide us with a comprehensive instruction.

The type PN ** marking on the pipe has a direct bearing on its working pressure. The maximum working pressure on which the pipes are designed in atmospheres is indicated by two digits that follow the letters.

Subtle: The indicated working pressure is for temperatures in the 20s. It is safer to divide it into three at 80–90 degrees, so PN25 pipes are the better option. This is more of a reassurance, though, as the owners do not cause issues despite the PN20 pipes being heavily heated.

Temperature

Pipe marking typically includes information about the maximum operating temperature as well. For reinforced pipes, the majority of manufacturers specify either 90s or 95s. From the consumer’s perspective, these values are equal because one of the manufacturers is just better defending itself against potential legal action.

Builders use rather complicated formulas that take into account various factors such as thermal load, temperature difference between supply and return (which depends on CHP in the case of central heating), pipe material’s coefficient of roughness, color of rising Venus, and moon phase to accurately calculate the required diameter.

But practically speaking, all you need to do is keep in mind these two basic guidelines:

• When wiring heating around the apartment, the used polypropylene pipes should not underestimate the lumen relative to the risers. Most new houses use risers from the DU 20 pipe (3/4 inches); Accordingly, you will need a polypropylene pipe with an external diameter of 26 millimeters). In Stalinks with inch risers, it will reasonably use pipes with an external diameter of 32 mm.
• For a private house with an area of up to 250 square meters, the most efficient and trouble -free heating system is Leningrad (a ring from a pipe around the perimeter of the house on each floor, in parallel to which, without tearing it, heating devices are cut). For the ring, a pipe with a diameter of 32-40 is taken, for inserting radiators-20-26 millimeters.

This kind of thing will resemble an insert.

Manufacturers

Here, assistance will be given in the form of a review of customer forums.

In order to decrease popularity, there will be roughly the following rating in the dry residue if we eliminate all verbose enthusiasm and outpouring:

There are undoubtedly more producers out there that provide high-quality goods at competitive costs but are not included in this list. You can find what you need by doing a quick Internet search for the manufacturer’s name.

All polypropylene pipes are generally covered by the listed properties.

Problems of pipe welding

PPR pipes can be joined together using a different kind of adhesion or the so-called welding method. While this is a reasonably easy and practical method of connecting, it necessitates a serious and responsible approach. In this process, a lot of installers are dishonest and weld everything at random. Ultimately, you can obtain this image:

For seasoned installers, these circumstances are similar. The worst part is that, short of chopping the pipe in half, there is no way to determine whether the junction turned out to be normal or not.

We had a situation where we called in a third-party brigade to install a boiler room made of PPR pipes. Despite the fact that every pipe has a specific maximum temperature, the guys twisted the welding iron at that point. They received numerous warnings about this. They nevertheless did so on their own. Although everything appeared to be connected flawlessly, some connections eventually flowed following the boiler room launch. I had to do it again.

Pipes from Turkey. Quality characteristics

The company TEBO produces products with a 20–160 mm diameter based on polypropylene. These goods are resistant to the effects of nearly all hostile media.

There is a unique series that is installed in heat supply systems and has fiberglass and aluminum reinforcement.

The company’s designs are also frequently utilized in real life Pilsa. mainly because of the fusion of such superior properties as elasticity, strength, and wear resistance.

Video: Pipeline made of polyethylene

The most important thing is to buy a pipe line that fits a specific pipeline. After that, the procedure won’t be connected to any issues down the road.

Every manufacturer demands that customers accurately follow the guidelines provided in the operating instructions. For example, Pilsa prohibits waln up their pipelines into the wall, which is unquestionably a disadvantage.

For optimal results, it is preferable to install a controlled boiler on the system. It will permit keeping the interior at a temperature of no more than 95 degrees.

Novaplast manufactures a selection that is distinguished by a limited selection of external mounts and a reasonably low price. However, the caliber stays very high.

Valtec It also has strength and dependability to its name. This holds true for fittings as well as pipes. One brand of polypropylene that has taken center stage in manufacturing operations is PP-R 100.

Firm Firat produces its goods in accordance with all regulations before releasing them onto the market. As a result, even severe rust cannot harm its products. It’s true that a high coefficient of thermal expansion is a disadvantage.

Kalde, the manufacturer, closes an aluminum shell that is continuous. As such, the product quality is marginally lower when compared, say, to ecoplastic.

Polypropylene of Czech origin

Czech company Wawin Ecoplastic has emerged as a virtual industry leader in this field of manufacturing. There are other indicators of the manufacturer’s receiver besides high-quality products. World-class standards line up perfectly. Where can Czech goods be used?

1. In underground heating and cold water supply.
2. Cold water supply with high pressure, hot water supply.
3. For a turn that go to hot water supply, central heating.
4. With central and underground heat supply.
5. In order to transport hot water with cold, air wrap.

In specialist retailers, customers can easily find:

• Fitings, whole -plastic with combined varieties.
• Fiber – a series of polypropylene products.
• Stabi – pipe brand in several layers.
• PP-R-brand of whole-plastic pipeline.

Fibera: Reinforced fiberglass with plastic pipes. linear growth when the heat minimum is present. The strength is quite large with small weight. There is no need to process the surface further before welding commences.

The manufacturer creates rigidly constructed tubes with an aluminum insert to shield them from temperature fluctuations. They can be implemented in any complexity level of system.

German quality

Additionally, German businesses held strong leadership positions in this market. This includes goods sold under the weFatherm brand, for instance. This covers not just the pipelines but also different fittings needed to produce compounds of the highest caliber.

Introduced Wefatherm The systems differ from their competitors in that they offer the following advantages:

1. Permissible combination of pipes of several types inside one system. What is facilitated by a wide selection of connecting reinforcement.
2. Perfect smoothness retains the surface inside. Due to which constant pressure is maintained, sharp changes are absent.

The goal of diffuse welding is to create seams with optimal sealing.

This brand’s pipes and fittings are appropriate for carrying chemicals that are reactive as well.

For those who are interested in buying high-quality goods, Faser is also something that they should consider. Even at pressures of up to 20 bar, they are utilized in hot water.

They have a diameter that falls between 16 and 250 millimeters. The manufacturer also influences the benefits and drawbacks of polypropylene pipes, albeit to some extent.

• POPHAN for cleaning sewage pipes
• Polypropylene pipes and fittings FV-Plast Czech Republic
• The maximum distance from the septic tank to the house
• Isolation is very enhanced – GOST 9.602 2005

What are the fittings for

Any pipeline’s device consists of a number of branches, connections, and turns. Fittings enable the possibility of their devices. They are separated into multiple kinds with varying mounting techniques, compositions, and functions. Depending on how they are connected, they can be:

• flange;
• crimping;
• threaded;
• welded.

Polypropylene fittings fall into the welded and threaded connection category. They have unique notches on their surface that aid in locating the fitting when welding. They are indispensable when installing water and heating systems, offering the same benefits as polypropylene pipes.

Fitting labeling (PN10, PN16, PN20, and PN25) matches pipe marking. Manufacturers announce:

• tees;
• Divids;
• couplings;
• sliding and motionless supports;
• plugs;
• knee (turns);
• flanges;
• contours;
• Ball Valves;
• valves and much more.

Additionally, electrical fittings with designs that incorporate electric heaters are available for purchase. When butt welding isn’t worth it, these are employed. Generally, this occurs when the damaged areas are healing under restricted or challenging weather.

Not just polypropylene pipes, but also fittings made of polypropylene are joined together. Many adapters, couplings, and drives are available to connect with pipes made of different materials. Fittings with brass or chrome inserts make it simple to make connections to any type of sanitary. It is important to remember that pipes and fittings should come from a single manufacturer; otherwise, nobody will likely be able to guarantee the compounds’ quality.

Installation of polypropylene pipelines

Soldering or heat welding are the methods used to join polypropylene pipes. Use a specialized soldering iron for this task. It is vital to practice on cheap pipes and couplings or use any scraps for this in order to create a high-quality seam. The adhesion process moves pretty quickly, so it will no longer be possible to turn the fitting or pipe without damaging the seam if you can’t barely get the welded elements in place in a matter of seconds.

There are currently three different methods of welding that produce a homogenous seam:

• polyphous, or coupling, for pipes with a diameter of up to63 mm;
• joint, or flange, for pipes with a diameter of more than 63 cm;
• Using electrophytines.

By heating the connected areas before the polypropylene melts, you can create an unusable seam with any type of welding. A device with a clamping hydraulic mechanism will be useful in the second scenario, and a device for chopping welding in the first.

The soldering irons are fitted with Teflon-coated nozzles of varying diameters, which are intended to be used for soldering both the pipe’s outer surface and the interior of the bell-shaped coupling.

Polypropylene pipes that have aluminum foil outside must be cleaned to the size required to fit through a coupling or other fitting before welding can begin. It is not necessary to do this for other pipes. The soldered components need to be degreased after being carefully cleared of dust. Following that, you can start the pipeline installation process.

1. The pipe at right angles is cut with special scissors or a hacksaw for metal.
2. A nozzle of the desired size is installed on the soldering iron and the device for heating is turned on to the required temperature of 250-270 degrees. It should be noted that the heating time is 15-20 minutes.
3. Fiting bell on one side of the apparatus is put on Dorn, and on the other, the end of the pipes is inserted into the sleeve to the mark of the welding depth.
4. After heating both elements, they are removed from the nozzle and confidently combined with each other, observing mutual alignment. The required heating time depends on the diameter of the pipe.
5. The cooler of the weld is a few seconds, during which the turn or bend is not allowed to make. The incorrect connection is not subject to the correction, it is simply cut out.

It is crucial to understand that if the joint is not warred, it will become unreliable; additionally, if the product overheats, the product’s shape will be lost and the seam will become deformed. You can view the following video to learn how to correctly weld polypropylene pipes:

You can view the following video to learn how to correctly weld polypropylene pipes:

Fittings with threaded inserts on one side are used to connect to metal or metal-plastic pipes, and different seals are also used.

Because polypropylene pipes can expand or contract in size when heated, sliding supports and a variety of compensators, including M-, P-, and round-shaped compensators, are used during installation when using these pipes in the hot water supply system.

Types of polypropylene pipes

Continuous plastic pipes

The cheapest plastic pipes are continuous ones.

PVC is used continuously to make monolithic products, with an expansion coefficient of 0.15%. They are only applicable to the installation of systems that move a substance at a low temperature, such as cold support and ventilation.

Using these pipes is just not practical at water temperatures above 10C; they will not withstand the heat and risk cracking or burst. This needs to be considered.

Reinforced polypropylene pipes

Plastic products are reinforced with aluminum. Additional layers reinforced with aluminum can be found inside, as a point perforation, or outside, as a thin foil. The application of perforation takes the shape of a hole-filled grid. A dense clutch of the polymer with a metal alloy is formed during the casting process when the viscous material falls into the holes. Pipes made of reinforced polypropylene are the most dependable

This kind of strengthening allows the system to handle coolant that has reached 90 degrees Celsius. It is important to keep in mind that installing and welding products reinforced with aluminum can be challenging because these products don’t always match the depth of entry into fittings, necessitating extra cleaning and upper foil removal.

Pipes with fiberglass

A fiberglass-filled layer sits between two layers of plastic in such a product. Cleaning and calibration are not necessary for plastic elements that are reinforced with glass during installation. The solder passes easily and quickly, saving a substantial amount of money in both temporary and ongoing expenses.

The hardness, density, and service life of elements are all increased by glass. These pipes’ significant increase in thermal lengthening indicators over those of aluminum-enhanced products is a drawback.

Use of fiberglass-lined plastic pipes in a coolant temperature mode variation

Metal -plastic pipes

Products made of metal and plastic have an inner layer of aluminum and an outer layer of PVC. These samples have the capacity to transfer extremely high temperatures and can be used for home heating and water supply. The metal layer that comes into contact with the material being transported may corrode, which is a drawback of metalloplasty elements.

Fittings are the components used to join pipeline elements. They are required for any engineering communication’s arrangement. You can easily select the accessories that are best suited for installing different plumbing devices because they come in a variety of models and are made of polypropylene with brass inserts or chrome. You will need a welding machine for installation.

The diameter of the heating pipes is directly proportional to the diameter of the connecting components. Once you know the diameter of the main element, you’ll know exactly which connecting part to purchase. Products come in various diameters:

• The diameter of 32 mm is suitable for the water supply device in an apartment building;
• Product diameters of 20 mm, 25 mm are more suitable for arranging private heating;
• The diameter of 16 mm is most popular. It is suitable for many technical work.
• There are pipes and fittings with a diameter of 40 to 600 mm, but the area of their use is quite specific.

Plastic pipe installation in the heating system is a reasonably easy process.

It happens quite frequently that the diameter listed on the package is not what it actually is! Since there are fewer marriages in construction markets, it is preferable to purchase fittings in stores.

Polypropylene pipes or metal behind and against

Water was only collected from metal pipes, mostly composed of steel, until recently. Due to the high expense, harvesting of copper, stainless steel, and aluminum was not very popular. Steel pipes were upgraded to eliminate many shortcomings. For instance, they were zinc to lessen corrosion. However, upgrades came at a cost, so not all users could afford them.

Since polypropylene pipes lack the majority of the drawbacks associated with metal products, they have quickly replaced them in areas of the home like the water supply system. Furthermore, polypropylene water supply pipes are less expensive than metal ones.

The qualities of the material used to make plastic products are primarily responsible for their appeal. Oil products and their byproducts are the source of polypropylene. Different types of material can be used in different situations.

The most widely used pipes from a propylene (PP-R) static copolymer are taken into consideration. They fall into the middle-of-the-road product category and are mostly utilized in water supply systems. These pipes are single-layer pipes used in systems that supply cold water. Monolithic products cannot be used for hot water supply; only multi-layer products containing additional materials can be used. However, their cost is significantly higher.

You can determine why consumers favor polypropylene pipes with metal by contrasting the features of metal (steel) and polypropylene pipes (PP-R).

Pipe material	Advantages	Flaws
Polypropylene	Flexible enough to restore the form after deformation	Do not tolerate sunlight
Withstand high temperature and pressure	Not used in hot water supply systems
Resistance to aggressive chemical elements	Strongly change their size when temperature changes
For installation, no special skills are required	You can not clean the highway due to inexhaustible joints
Salt growths are not formed on the surface
Can be mounted in a closed way
Environmentally friendly
Low price
Light weight
It absorbs sounds from the flow of water
Long life
Pipes compounds are ineffective and very reliable
Delivered in large sections, which reduces the number of joints
When freezing water do not burst
Metal	Great strength	Prossessed by corrosion
Low cost	Mud and deposits are layered on the walls
Very small linear expansion coefficient	The joints are made detachable, they require constant control
Actively react with various chemical elements
Large weight, which complicates installation and transportation
Supposed in small segments
Highly qualified specialists are required for installation
High thermal conductivity
Relatively short life

The most widely used pipes from a propylene (PP-R) static copolymer are taken into consideration.

Heating system in a private house approximate action plan

Similar to the preceding option, installing a heating system in a private home requires careful planning and upfront preparation. Keep in mind that the two-pipe wiring option is better in this situation. You should first choose the kind of heating element (boiler).

Typically, they are:

• solid fuel;
• gas;
• electric

It is advisable to leave the connection of the heating system to solid fuel boilers to experts due to their intricate maintenance requirements. When a home has a gas pipeline supplying it, using gas boilers makes sense. In this instance, the installed electric boiler is the safest option in comparison to earlier choices.

The manner in which the coolant in the system moves will also be a significant consideration when installing heating in a private residence.

The division into circulation is acknowledged by most people.

• natural (gravitational);
• forced (pumping).

In the first scenario, an air vent and an expansion tank must be included in the heating system diagram in order to prevent abrupt pressure drops. To prevent coolant from freezing, it is advised that the expansion tank be installed in a warm room at the same time.

It should be remembered that systems with natural coolant circulation have certain drawbacks despite their relatively easy installation. As a result, they are employed for an extended period of time and their overall length shouldn’t be greater than 30 m.

The proper positioning of the so-called pipe, a vertical piece of pipe that connects to the boiler, is crucial when installing a dependable heating system. When selecting an appropriate polypropylene pipe, you can pay attention to the following values: Therefore, you should select a pipe with a section of at least 40 mm if the supply pipe has a diameter of 32 mm.

Once the optimal polypropylene pipes for heating have been determined, you can move on to the next step, which is connecting them to the radiators.

Select one of the following methods to accomplish this:

• lower;
• side;
• diagonal.

The option with the lower connection, also known as the "Leningradka" scheme, entails connecting the supply and outlet pipes to the radiator’s lower section. It is not advised to use such a system for multi-story buildings. However, it can work well in a private home, particularly since the lower wiring can be concealed in the area beneath the floor if that’s what the owner wishes.

The supply and outlet pipes for a side connection are found on one side of the radiator—one from below and one on top. This system, which is reasonably efficient, is most frequently found in apartment buildings.

The supply pipe is connected to the upper radiator pipe and the diverting pipe is connected to the lower radiator pipe in a diagonal connection. This layout will work best with contours that are sufficiently extended when installing ten or more radiators. It should be mentioned that heat losses with this kind of scheme typically don’t go above 2%.

In conclusion, it is safe to state that heating pipes and polypropylene fittings are not only reasonably priced but also sturdy, high-quality parts. They are worthy rivals to steel pipes due to their superior heat resistance, thermal conductivity, and long operating life. And reinforced polypropylene pipe will be the most dependable polymer product on display. Prosperous acquisitions!

Fundamentals of installation

Propylene pipes are used to collect heating from the boiler, and soldering is the only method. The couplings must be soldered if you need to change the direction of circulation because the pipes do not bend at all. For the task at hand, you will require:

• special scissors that allow you to make an even and smooth cut;
• Shaver is a tool for removing chamfers and reinforcing reinforcement;
• soldering iron.

The soldering iron’s ideal volume temperature is 260 degrees.

Heating up the details prior to the connection is crucial.

The duration of propylene pipe heating

The components that require soldering ought to be placed on the soldering head and connected to one another. Cleaning the reinforcement layers is not required if the products are made of fiberglass; if they are made of aluminum, it is absolutely necessary.

Precisely the amount that the pipe enters the clutch needs to be removed. Water may collect between the contour’s layers during operation if the stripping is of low quality. As a result, bubbles start to appear beneath the circuit’s outer layer. They resemble those that are created when low-quality glue is used in factory marriages. They were covered in the first additional article.

You have a limited amount of time to merge and reject the heated details. It filled all the cavities and forced out the air into the molten material because there is a consistent rim of squeezed polypropylene at the junction. Take caution—molten polypropylene has the potential to escape both inside and outside. In this instance, the connection’s conditional passage is significantly diminished, resulting in a violation of circulation.

Propylene pipes

Polymers of the following kinds are currently unwavering leaders in the field of guaranteeing household heat and water supply:

• polypropylene;
• polyethylene;
• polyvinyl chloride.

These species are all united by a single characteristic. Since they are all thermoplastic, they can all change from a viscous to a plastic state when the outside temperature rises. The materials solidify during the cooling process. On this list, propylene holds an honorable first position, sharing the championship palm with a steamed polyethylene. Today, the most practical and easy-to-use polymers for heating system applications are these two kinds.

Propylene-piped home heating systems frequently have long, straight sections. Thermoplasticity of polymers plays a cruel joke on the heating contour in these areas of the pipeline. The effect of thermal lengthening is triggered when improperly chosen pipes start to change shape as a result of the circulation of the hot heat carrier.

Polypropylene pipes for heating types, characteristics, properties

PPR pipes, also known as conventional polypropylene pipes, have been used more recently for heating system installations. It became evident over time, though, that this material is not totally appropriate for these uses. Pressure and high temperatures caused PPR pipes used for heating to become highly susceptible to deformation.

Furthermore, their operational period ultimately proved to be significantly shorter than what the manufacturers had claimed. Using reinforcing technology during the pipes’ manufacturing process was a great way to modernize them. This allowed for the improvement of the current issues while maintaining all of the benefits of polypropylene products.

As of right now, reinforced polypropylene pipes can be divided into the following categories:

• With aluminum -they are made using aluminum foil, which, depending on manufacturing technology, can be on the surface of the pipe or between propylene layers (the so-called sandwich technology) and prevents pipes from the negative consequences of excessive thermal expansion;
• with fiberglass – in the manufacture of which the structure of the structure is achieved due to a durable, cast compound of polypropylene and fiberglass. This, in turn, gives the pipes special strength and does not lead to relaxation either in the process of installation, or with further operation.

It is crucial to remember that in order to prevent stratification at the welding sites and during subsequent use, polypropylene pipes for heating with aluminum reinforcement must first undergo a thorough cleaning. ..

Pipes with fiberglass reinforcements do not require welding during cleaning because they are not in short supply.

Products should only be selected from reputable manufacturers and suppliers in order to reduce the likelihood of purchasing a fake and prevent situations connected to low quality pipes (such as their strong stratification).

Unfortunately, the influence of thermal expansion and the ensuing deformation it causes cannot be totally eliminated by the technology used to reinforce polypropylene pipes. Consequently, to decide in favor of a specific product type, taking into account both personal preferences and the availability of material resources.

It’s also crucial to understand that polypropylene pipes will be the most appropriate for heating systems. The truth is that pipes composed of low-pressure polyethylene (PND) or polyvinyl chloride (PVC) are more suited for organizing cold water supplies or, in certain situations, sewage because of their extreme softness. In this sense, the obvious benefits of polypropylene pipes—such as their strength, light weight, and dependability—serve as an additional argument in favor of purchasing them.

The following are the primary technical attributes of heating polypropylene pipes:

1. Pressure resistance. This property is completely dependent on the temperature of the coolant – the higher it is, the less pressure in the system is permissible. So, most polypropylene pipes can withstand pressure within 4 – 6 atm at a temperature of the coolant at 70ºС.
2. High temperatures resistance. As a rule, polypropylene pipes can easily tolerate short -term fluctuations in the temperature of the coolant to 95ºС. It is obvious that such changes for the heating systems of residential premises are rather an exception. Since the polymer softening temperature is 110 – 140ºС, and the melting temperature is 140 – 170ºС, this once again confirms the feasibility of using polypropylene pipes for heating.
3. Resistance to corrosion. Lack of reaction to constant contact with water, the presence of smooth surfaces that impede the accumulation of salts make polypropylene pipes with worthy competitors compared to other products.
4. Low thermal conductivity. In this connection, condensate is not formed on the pipes, and the surface temperature will be almost the same as the temperature of the coolant.
5. Long -term operational period. According to manufacturers, the permissible service life of polypropylene pipes is about 50 years, while for steel pipes this figure ranges from within 20 years. Of course, the scheme of the heating system, the working pressure, and the temperature temperature changes will affect this property.

Additionally, the dimensions of the pipes themselves as well as the appropriately chosen fittings have a direct impact on the efficient and dependable operation of the heating system. We will then discuss the selection of polypropylene pipe for heating, taking into account its primary characteristics.

Metal -plastic pipes

The least expensive option is likely metal-plastic pipes. Fittings can be used to connect such pipes; in this scenario, the system can be detached and not sewed into the walls. In situations where it is imperative to conceal the press connection wiring. For the assembly of temporary water supply systems, their affordable price and simple installation make them essential.

1. low cost;
2. easy installation, when collecting on fittings does not require special devices;
3. are not subjected to corrosion;
4. The permissible radius of flexibility is 4 dimeters of the pipe; for more severe flexion, special springs are used that prevent deformation;
5. resistant to high temperatures, used to install hot water supply and heating.

1. The main disadvantage is the different coefficient of expansion of the components of the pipe – in aluminum it is one, in plastic – the other, the expansion at temperature differences are compensated by the adhesive layer, but such a complex structure of the pipe can hardly be called perfect.
2. short service life from 12 to 17 years;
3. require a periodic tightening of connections on fittings (approximately every 3 years), pipes can begin to dig up due to temperature differences.

The ability of metal-plastic pipes to withstand internal pollution and corrosion is one of their key benefits. The smooth inner surface keeps solid formations from sticking, which typically results in a drop in throughput. These pipes are convenient, easy to bend, and install without the need for specialized tools.

Advantages	Durable, corrosion-resistant
Flexible, easy to install
Cost-effective compared to metal pipes
Disadvantages	Not suitable for high-temperature systems
May degrade under UV exposure if installed outdoors

The longevity and efficiency of your home heating system depend on the materials you choose. Because of its many advantages, polypropylene pipes have become a popular option for many homeowners. These pipes are a dependable choice for heating systems since they are strong, resistant to corrosion, and simple to install.

The ability of polypropylene pipes to withstand corrosion and chemical damage is one of their main benefits. Polypropylene pipes are resistant to chemicals and moisture found in the heating system, unlike metal pipes that may rust with time. Because of their resistance, the pipes will last longer and require less maintenance and replacements.

Polypropylene pipes are not only extremely flexible and durable, but they can also be easily installed in a variety of configurations. Their adaptability makes installation easier, saving money on labor and causing the least amount of disturbance to your house. Polypropylene pipes are versatile and user-friendly, making them ideal for both new system installation and retrofitting.

Moreover, the high thermal conductivity of polypropylene pipes guarantees effective heat transfer throughout the system. This characteristic makes it possible for your heating system to run more efficiently and with less energy usage. Homeowners can benefit from cheaper heating costs and a smaller environmental effect as a result.

All things considered, polypropylene pipes are a wise option for anyone installing or upgrading a heating system. They are a dependable choice for both residential and commercial applications due to their strength, flexibility, and thermal conductivity. You can make sure that your heating system is long-lasting and efficient, resulting in years of comfort and savings, by making an investment in polypropylene pipes.

Video on the topic

Choosing a pipe for heating systems.