Flexible, hot, shiny: stainless steel pipes for heating. Stainless steel corrugated pipes for heating and other corrugations used in heating systems Stainless steel pipes for heating

Due to the fact that the pipes are made from of stainless steel brand SUS304 (Russian analogue 08Х18Н10), the product has a number unique characteristics, which allow it to be used in household and production systems heating:

  • The stainless steel corrugated pipe bends easily without breaking or cracking. In this case, the product retains its original bore diameter;
  • high strength characteristics;
  • stainless steel pipes are resistant to corrosion, and smooth inner surface prevents the formation of deposits;
  • resistance to water hammer, temperature changes, defrosting;
  • simple installation with a minimum number of connections. Corrugated pipes are used to create heated floors. In addition, it is allowed to lay communications in the walls. To securely connect products, no special equipment is required (wrenches are quite suitable);
  • steel pipes are resistant to rodents, mold and mildew;
  • long service life.

You can always buy corrugated pipes for heating at a good price in Moscow from the MetaFlex company!

Stainless steel heating pipes are increasingly considered by consumers as the most promising, although not a budget option for arranging a heating system for your home. Due to the properties of the material, such pipes are not susceptible to corrosion - the main enemy of the lines responsible for delivering heat to homes. Once laid pipes from stainless steel - with correct implementation everyone installation work– will not require repairs for many decades. What can’t “boast” about are pipes made of ferrous metal, which begin to partially leak within 5-7 years after the start of operation.

Characteristics of stainless steel heating pipes

Welded stainless steel pipe. (pipe bending is made of stainless steel)

Having decided to purchase stainless steel heating pipes, the consumer is faced with three market offers:

  • welded pipes made of stainless steel,
  • seamless,
  • corrugated.

Seamless steel pipes

What type, diameter, thickness of pipes are suitable in your case is determined taking into account:

  • budget allocated for the purchase of rolled metal;
  • the nature of the loads to which the heating system will be subjected;
  • specifics of external influences on the future line;
  • technical features the site where pipe laying work is planned;
  • system configuration;
  • pressure indicators;
  • temperature indicators.

Corrugated steel pipes

So, for gravity systems, pipes with a wide diameter are needed.

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Why is stainless steel better than other materials?

  1. It is not susceptible to moisture, which prevents corrosion processes from developing inside the pipes and on them. outside.
  2. Lack of corrosion inside the pipes, ensures preservation chemical properties passing through the water system. This significantly extends the life of motors installed in forced-pressure systems.
  3. The introduction of an increased amount of chromium into the stainless steel alloy makes the material resistant not only to moisture, but also to aggressive substances, for example, 50% hydrochloric acid.
  4. Stainless steel is resistant to mechanical stress.
  5. Seamless stainless steel pipes are particularly resistant to high pressure. Even when emergency situation at the substation and the resulting water hammer, the surface of the heating system with pipes made of stainless steel will not lose its tightness.
  6. The material retains specifications under the influence of typical temperatures, does not change properties when the ambient temperature changes.
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Rolled metal for heating systems from stainless steel

  • resistant to corrosion and aggressive chemical environments;
  • immune to the influence of temperature changes;
  • withstands high pressure.

According to the method of production, stainless steel pipes are divided into hot-rolled and cold-rolled.


Stainless steel pipes have many advantages and are therefore resistant to many damages

By processing technique outer surface are divided into:

  • matte,
  • polished,
  • mirrored

Welded rolled metal from non-ferrous metals for heating is obtained from sheet steel. The presence of a seam on such pipes is their “weak link”, since it creates, albeit scanty, a prerequisite for future leaks at the junction of the edges.

As in the case of welded ones, seamless ones are connected using welding. On the one hand, this creates the preconditions for leaks in the future (subject to poor-quality welding of joints), on the other hand, it does not always suit home owners if the installation/replacement of the system is carried out in a residential building with expensive renovations on the premises. In this case, if the owners want to install heating with pipes that have the longest service life, we can recommend corrugated pipes.

Corrugated heating pipes made of stainless steel are a relatively recent industrial achievement, which appeared thanks to the efforts of Japanese technologists.

Such pipes are made from steel strip, which is then molded under high temperatures (up to 1150 degrees)


Corrugated pipes have the longest service life

In addition to technical qualities similar to performance characteristics ordinary pipes for heating from the same material, have unique property- they can be bent without the use of additional equipment (R bending determines the diameter of the pipe). This allows:

  • reduce the cost and reduce the duration of installation work - there is no need to use welding
  • reduce the cost of purchasing connecting elements for underfloor heating systems.
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Why is installing accordion pipes cheaper and easier?

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Disadvantages of pipes made of stainless steel accordion

  • cannot compete with seamless or welded ones in resistance to particularly high temperatures;
  • susceptible to mechanical stress (because of this, they are not recommended for installation in children's bedrooms and playrooms);
  • may lose their tightness under the influence of certain alkalis and acids (cannot be installed in rooms where there is a possibility of aggressive chemicals getting on the surface of the heating system).

Installation of corrugated heating pipes is easy

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Bottom line

When arranging a heating system at home, wanting to insure as much as possible against pipe leaks in the future, it is advisable to use pipes made of stainless steel. When laying a line in a newly built house with unfulfilled decorative and finishing work, you can safely weld pipes using welding. And remember, a high-quality stainless steel pipe, the price of which does not exceed the market price, will be the most acceptable. If you choose a pipe for a heating system, the conclusion is obvious: it is better to buy a stainless steel pipe.

IN residential buildings Where the use of open flame burners is not possible for safety reasons, the heating system can be made using corrugated pipes. You can find out where to buy stainless steel heating pipes in your city by contacting a store that sells plumbing fixtures or building materials, or by using the capabilities of a virtual network.

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Video review of a recent industry achievement - stainless steel corrugated pipes:

In this video you will learn more about what a corrugated stainless steel pipe is.

prootoplenie.com

Stainless steel pipes for heating - a guarantee of system reliability for many years

When installing a heating system, considerable attention is paid to the pipes used. After all, the quality of heating depends on them as well.

Stainless steel pipes have been actively used for heating for a long time. Let's consider how relevant the material is at the present time, what advantages and disadvantages it has.

Kinds

Stainless steel pipes for heating can be of three types:

  • thin-walled;
  • thick-walled;
  • corrugated.

Thin-walled ones have excellent characteristics. They are resistant to corrosion and the appearance of precipitation on the internal walls of the pipeline. If you take a pipe that has been used in a heating system for, say, 20 years, you can see that the inside is almost perfectly clean.

Steel pipes can be of two types:

  • seamless;
  • with a welded seam.

The first type is considered more reliable and therefore has a higher cost. A pipe with a seam can sooner or later leak, which is why most craftsmen prefer a seamless one when creating a pipeline.

Another view steel pipes– corrugated. Appeared on the market relatively recently. It can confidently be called an alternative to classic stainless steel.

But there is a significant difference that makes this type more popular:

Read more about corrugated pipes.

Advantages and disadvantages

Stainless steel heating pipes have a significant number of advantages:

  • long service life - the material can easily last at least 50 years;
  • strength – it is quite difficult to deform or damage a pipeline of this type;
  • high thermal conductivity - the pipeline easily transfers heat into the room (but this is a disadvantage if part of the pipeline passes into unheated room– the pipe and, accordingly, the coolant in it cools down quite quickly);
  • accessibility - buying stainless pipes for heating is quite simple, they are common and have a very affordable price.

However, like any other material, this type also has some disadvantages, which makes their use sometimes quite inconvenient.

However, stainless steel has only one drawback - the complexity of installation. To install the pipeline, it is necessary to carry out welding work - and this, first of all, takes a long time.

In addition, this is only permissible if no work has been carried out in the room where the heating system is installed. Finishing work. After all, welding can easily damage both wall and flooring. Accordingly, the repair will have to be done again.

We do not recommend carrying out welding work on your own: they require certain skills that not everyone has. It would be more correct to invite a specialist who will connect the elements and connect the pipeline to the radiators and heating boiler.

Important material on the topic - how to do welding yourself and what you need to know and be able to do for this.

The video below shows a hydraulic test of a corrugated stainless steel pipe. The pipe passed the test. This proves that they can be safely used in modern systems heating.

Conclusion

Of course, many may say that it is much easier to buy propylene pipes for heating.

But the fact is that stainless steel has the highest quality characteristics, which allow you to forget about the problems of the heating system for a long time. Of course, provided that everything is designed and connected correctly.

We hope that we have convinced you that stainless steel pipes have much more advantages than disadvantages. Therefore, you can safely use them.

We will be grateful if you press the buttons social networks.

Have a nice day!

kvarremontnik.ru

The use of corrugated stainless pipes for heating

Development modern technologies led to the emergence of new types of pipes for communications made of cross-linked polyethylene and metal-plastic. Due to ease of installation, resistance to corrosion, light weight, and affordable cost, they have significantly displaced steel and copper pipes. Corrugated stainless steel pipe has not only found its niche, but also significantly expanded it due to its characteristics.


Corrugated stainless steel pipe

Most often, corrugated stainless steel pipes are used when installing heating systems and heated floors.

Properties that make stainless corrugated pipe suitable for heating:

  • high heat transfer (warms up easily concrete surface thickness up to 10 cm);
  • speed and ease of installation;
  • a stainless steel pipe has excellent flexibility, so no additional fittings are needed at the bends of the routes;
  • saving material by reducing connecting bends;
  • long service life of systems;
  • does not corrode.

What should you pay attention to during installation?

Stainless steel pipes for floor heating are used without plastic braiding, as it reduces heat transfer.


Installation of heated floors using corrugated pipes

It is necessary to take into account that the bending radius must be at least three times the diameter of the metal corrugation.

The second point to pay attention to is eddy currents (Foucault currents). Stainless steel conducts electricity and must be grounded when installing it. In places where a corrugated heating pipe may intersect and electrical wiring. The corrugated sleeve must be placed in metal pipe. It will serve as a screen, neutralizing vortex electrical currents. Otherwise, the tightness of the pipe may be compromised due to electrochemical corrosion.

Installation of heated floors has its own nuances. Compression fittings must not be installed in closed systems. They are brought above the level of the heated floor.

Specifications

The corrugated pipe is made of alloy steel, that is, with additives that significantly improve the characteristics of the metal, and therefore, products made from it. Chromium and nickel are used as such impurities. By adding chromium (more than 12%), the anti-corrosion properties are significantly increased and strength increases. The combination of chromium and nickel makes hardware heat-resistant, imparts plasticity (viscosity) to the metal. The stainless steel corrugated pipe material contains 18% chromium and 8% nickel (SUS steel (AISI) 304).

Manufacturing stages:

  1. First, a pipe is formed from an alloy steel strip.
  2. The turns of the tape are connected by automatic welding.
  3. They use a laser machine and check the quality of the welds.
  4. Then the stainless steel pipe is rolled.
  5. The corrugated sleeve is cut and rolled into coils.

The ribbed structure of the pipe is ensured by rolling with special rollers

Corrugated stainless steel comes in two types: annealed and unannealed. The product is annealed, that is, heated, and then cooled so that it acquires plasticity, holds its shape, and bends better. This is especially important for corrugated hoses of small diameters.

Specifications:

Standard dimensions: thickness 0.3 mm. In polyethylene winding 0.5 mm.

Maximum pressure: 60 Bar, destructive 210 Bar

Temperature range that corrugated pipe can withstand: from -50 °C to + 110 °C. The pipe itself can withstand up to 800 °C, but the fitting gasket can withstand up to 110 °C.

Pipe diameter (mm)Bend radius (mm)
12 36
15 45
20 60
25 75
32 96

Standard packages: 50 and 30 meters (for large diameters).

Advantages and disadvantages

The wide range of applications of corrugated stainless steel pipes is determined by a number of material properties.

These include:

  1. Versatility. Pipelines different diameters stainless steel corrugated pipes are used for:
    • hot and cold water supply. Complies with sanitary and hygienic standards;
    • heating systems;
    • heated floors;
    • natural gas supply;
    • ventilation systems, chimney;
    • systems designed for fire extinguishing;
    • as a corrugated hose for electrical wiring with an increased degree of fire safety;
    • transportation of individual chemical compounds.
  2. Corrugated stainless steel has good flexibility.
  3. Retains its characteristics under conditions of temperature changes and repeated freezing.
  4. When used for water supply, it demonstrates resistance to water hammer and sudden changes in water pressure.
  5. Has a long service life. Minimum guarantee period 20 years, in practice they last 2–3 times longer.
  6. Resistant to excessive mechanical stress and high pressure (up to 60 Bar).
  7. Flexible corrugated systems, due to their high wear resistance, can be safely mounted in plasterboard frames.
  8. Not subject to corrosion.
  9. Stainless steel surface ( inner diameter) does not accumulate deposits.
  10. Comparable in weight to bimetal and plastic.
  11. The number of connecting elements (fittings) is minimized.
  12. Fireproof (withstands temperatures up to 800 °C).
  13. Compact. The rolled-up coil takes up little space, making it easy to transport.
The rolled-up coil takes up little space

The disadvantages include the fact that the corrugated structure of the pipe increases hydraulic resistance. In this regard, corrugated hose is inferior to plastic, so for longer routes a greater slope is required or an additional hydraulic pump is installed.

A corrugated pipe has less sound absorption, that is, the sound of water will be heard more, compared to metal-plastic cross-linked polyethylene.

It is noted that plastic pipes, from an aesthetic point of view, look more attractive, but this is a matter for discussion. From the moment they started producing corrugated pipes in a plastic shell, they became more visually aesthetic.

It is more difficult to clean a corrugated surface from dirt than a smooth one.

Main manufacturers

Japanese company Neptune. Recognized leader in the production of corrugated stainless steel pipes. Corrugated stainless steel hoses appeared in Japan (about 15 years ago). The company has representative offices in many countries around the world. Experts note high quality, competitive price.

Among the recognized brands that are in demand in the market are South Korean manufacturers.


Stainless Steel Corrugated Pipe Manufacturer KOFULSO

KOFULSO company. The price is higher than that of analogues, but it has good quality indicators. The service life of pipes and fittings is not limited. The O-rings are thicker than in other similar systems and last more than 30 years (under warranty). It is resistant to mechanical stress and water hammer.

"Lavita" Production is located in Latvia. This is good value for money. The cost is lower than KOFULSO, the quality is superior high level. Experts note that sometimes, when a pipe for heating or other systems is installed, the metal rings of the fitting can cut through the walls of the corrugation.

Hydrosta. Like “Lavita” it is an affordable option. Somewhat inferior in quality to KOFULSO. On average, product complaints are 5–7%.

German company Meibes. Like the products of the South Korean company KOFULSO, they have good quality indicators. Stainless corrugated heating pipes from this company meet quality standards. But pricing in the Eurocurrency segment makes its products quite expensive.

Important criteria for choosing corrugated pipes

Please note that the corrugated sleeve is marked only on the packaging, so you should not throw it away immediately. In case of a complaint, it will be useful, along with the purchase receipt. It is rare, but there are cases when, instead of annealed stainless corrugation, they sell material that has not undergone thermal hardening. Qualitative characteristics unmolded pipe is an order of magnitude lower, as is the price, but they look almost the same. You can distinguish them by bending. After annealing, the corrugation bends easily, maintaining its shape, it is more elastic. To confirm, it is better to ask whether the seller has a certificate of conformity.


Criteria for selecting corrugated pipes

The length of the corrugation in the package must correspond to that indicated on the package. If you purchase a piece of pipe, then its edges are cut evenly, at an angle of 90⁰. Cutting at a different angle may damage the fitting gasket.

Upon external inspection of the surface, there should be no visible defects along the entire length.

Check the brass fitting included. The kit should include: connection body, silicone sealing ring, brass clamp ring. Next comes the gasket (silicone comb ring) and the crimp nut.

Installation features

Corrugated pipes for heating and other communication systems are connected using brass fittings (without a fitting). In order to make installation quickly and without complications, purchase components from the same manufacturer as the corrugated hose.


Fitting complete set

When laying pipes, you do not need to stretch it in length, as this will increase the stress. It should maintain its natural shape, without tension or sagging.

Assembly steps:

  1. Cut the pipe with an even straight cut. It is convenient to do it between the links of a corrugated sleeve. To do this, use a metal file, grinder and other tools. Experts use a roller pipe cutter. The edges should not have jagged edges; they should be cleaned with abrasive materials.
  2. The pipe is crimped using the internal gasket part of the connection (compression fitting). The corrugated hose is inserted into the fitting, then tightened with the union nut from the kit.
  3. The shape required according to the project is given, then fixed using special fasteners.
  4. The last stage is checking the system. It is made under more pressure than a worker. In places of leakage, carefully tighten the nuts.

Fitting installation methods

This is what it looks like general scheme installation Its specifics depend on the purpose of the pipeline.

Conclusion on the topic

Corrugated stainless steel pipe has a number of advantages. High heat dissipation, 40% higher than copper pipe, ease of installation is not everything positive sides such systems. A strong argument in favor of such corrugation is that it easily withstands freezing and defrosting cycles.

But it is worth noting that the cost of such a heating system is higher in comparison with metal-plastic cross-linked polyethylene. It would be rational to use corrugated stainless steel hoses on certain sections of the pipeline with increased loads. Or for installing a heating system with a short length, local heaters. Convenient option for heating systems of small cottages.


Homemade heating radiator from corrugated pipe

When laying electrical networks that require an increased degree of fire safety, stainless steel corrugation is indispensable. Flexible gas hoses allow you to connect and install gas equipment in such a way that it can be moved.

The technical characteristics of the stainless corrugated pipe allow it to be used in various fields, as a reliable pipeline.

Stainless steel pipes used for the installation of water supply and heating systems have a number of advantages when compared with products made from conventional carbon steels. These advantages include durability (which can reach up to 400 years), as well as the hygiene of the material.

In addition, the internal diameter of pipes made of stainless steel does not decrease over time due to the accumulation of oxidation products on their internal walls (and, naturally, such products do not get into the water supplied through the pipes, which is especially important for domestic water supply). That is why stainless steel pipes are increasingly being replaced by products made from conventional carbon steels, which, due to active oxidation, can last no more than 10–15 years.

Advantages of stainless steel

The advantages of stainless steel pipes for heating and water supply are primarily due to the properties of the material from which they are made. This includes steel, chemical composition which contain at least 13% chromium. With a minimum chromium content, products made from it can be successfully used in environments that are mildly aggressive. If the quantitative content of this element is increased to 17%, then the stainless steel successfully resists the effects of even a 50% solution of nitric acid. That is why stainless steel alloy pipes are an ideal material for installing water supply and heating systems.

The surface of stainless steel pipes does not oxidize under the influence of acid and alkaline solutions, providing high hygienic characteristics water transported through them. These qualities, along with exceptional durability, make these products the best option for equipping enterprises operating in the food and pharmaceutical industries.

When choosing stainless steel pipes for arranging a water supply or heating system, you should take into account their high cost and higher installation costs. Meanwhile, such pipes will not have to be replaced after 10–15 years and should be carried out regularly Maintenance, which means that the costs will fully pay for themselves. It should also be taken into account that when using crimping technology, installation of stainless steel pipes takes a minimum amount of time.

In what cases can stainless steel pipes oxidize?

In some cases, even stainless steel pipes can be subject to corrosion. Rust spots on the inner walls of such pipes appear if water containing a significant amount of chlorine in its chemical composition is transported through them. If the composition of the water is normalized, the rusting process of the pipes will slow down, and they will retain their anti-corrosion properties.

A concentrated solution of chlorine, which is used to disinfect plumbing and other systems, can also cause corrosion of stainless steel pipes. In such cases, in order to eliminate the cause of corrosion, the pipes must be thoroughly washed after the procedure is completed.

Stainless steel in a “warm floor” system

Flexible stainless steel pipes

In the modern market, in addition to conventional stainless steel pipes, there are a wide variety of types. Thanks to the advantages of such pipes, which were invented at the end of the last century, they are increasingly being used to solve the most various tasks both industrial and domestic.

Yes, pipes of this type Today they are successfully used for:

  • installation of water supply networks through which both cold and hot liquids are transported;
  • arrangement of a heating system such as a “warm floor”;
  • laying gas communications;
  • creating fire extinguishing systems that use water.

Stainless steel has a number of advantages, among which the following are worth highlighting.

  • Such products can be successfully operated in conditions characterized by even very low temperatures.
  • Flexible stainless steel pipes can withstand even significant water hammer in water supply and heating networks.
  • The high flexibility of such pipes, as well as their ability to accept any configuration, allows them to be used for installation of communications in hard to reach places and in rather cramped conditions.
  • With the help of special fittings, characterized by high strength and corrosion resistance, you can install corrugated pipes made of stainless steel quite quickly. At the same time, savings in labor costs when establishing gas or water supply can reach 80%. It is also important that laying communications from such pipes does not require special training of personnel.
  • The service life of communications consisting of stainless pipes is measured in more than one hundred years, and the fittings with which they are connected can last at least 30 years (this is especially true when organizing urban water supply and heating).
  • Corrugated pipes made of stainless steel are lightweight and compact in size (when assembled), which significantly reduces transportation costs.
Based on the listed advantages, we can conclude that flexible pipes made of stainless steel are an innovative solution that allows not only high-quality installation of gas and water supply systems, but also significant savings on such a procedure.

Installation methods

When laying water supply or communications for other purposes using stainless steel pipes, several types of connections are possible, namely:

  • welded;
  • use of flange type connecting elements;
  • crimping.

To connect using water supply and heating networks, you will need not only special equipment, but also a qualified specialist. Such a process is usually carried out, and the welding itself is performed in an environment inert gas. Most in a modern way Plasma welding, which allows high-quality joining of stainless pipes, also requires the use of special and expensive equipment.

In domestic conditions, it is not always possible to use welding, since for this you need not only to have special equipment at your disposal, but also to attract a qualified specialist to operate it. In this regard, in such cases, threadless flange or threaded fitting connections are used.

Flanges are essentially two ring-shaped elements connected to each other using studs or bolts. To achieve tightness when using flanges, use a special sealing element made of rubber or other soft polymer material. Parts such as flanges, which differ quite large sizes, are used primarily when pipeline elements need to be periodically dismantled and maintained, spending a minimum of time. The disadvantages of connections of this type are that they react rather poorly to temperature changes and pressure surges in the pipeline.

Stainless steel heating pipes are increasingly considered by consumers as the most promising, although not budgetary, option for arranging a heating system for their home. Due to the properties of the material, such pipes are not susceptible to corrosion - the main enemy of the lines responsible for delivering heat to homes. Once installed, stainless steel pipes - if all installation work is carried out correctly - will not require repairs for many decades. What can’t “boast” about are pipes made of ferrous metal, which begin to partially leak within 5-7 years after the start of operation.

Characteristics of stainless steel heating pipes

Welded stainless steel pipe. (pipe bending is made of stainless steel)

Having decided to purchase stainless steel heating pipes, the consumer is faced with three market offers:

  • welded pipes made of stainless steel,
  • seamless,
  • corrugated.

Seamless steel pipes

What type, diameter, thickness of pipes are suitable in your case is determined taking into account:

  • budget allocated for the purchase of rolled metal;
  • the nature of the loads to which the heating system will be subjected;
  • specifics of external influences on the future line;
  • technical features of the facility where pipe laying work is planned;
  • system configuration;
  • pressure indicators;
  • temperature indicators.

Corrugated steel pipes

So, for gravity systems, pipes with a wide diameter are needed.

The pressure inside the heating lines of private houses is significantly less than in systems industrial purposes. Therefore, when choosing thin-walled products, the buyer does not risk anything. On the contrary, installing pipes with thinner walls will relieve excessive load on the foundation of the building.

Why is stainless steel better than other materials?

  1. It is not susceptible to moisture, which prevents corrosion processes from developing inside the pipes and on their outside.
  2. The absence of corrosion inside the pipes ensures the preservation of the chemical properties of the water passing through the system. This significantly extends the life of motors installed in forced-pressure systems.
  3. The introduction of an increased amount of chromium into the stainless steel alloy makes the material resistant not only to moisture, but also to aggressive substances, for example, 50% hydrochloric acid.
  4. Stainless steel is resistant to mechanical stress.
  5. Seamless stainless steel pipes are particularly resistant to high pressure. Even if an emergency occurs at the substation and the resulting water hammer, the surface of the heating system with pipes made of stainless steel will not lose its tightness.
  6. The material retains its technical characteristics under the influence of typical temperatures and does not change properties when the ambient temperature changes.

Rolled metal for heating systems from stainless steel

  • resistant to corrosion and aggressive chemical environments;
  • immune to the influence of temperature changes;
  • withstands high pressure.

According to the method of production, stainless steel pipes are divided into hot-rolled and cold-rolled.

Stainless steel pipes have many advantages and are therefore resistant to many damages

According to the technique of processing the external surface they are divided into:

  • matte,
  • polished,
  • mirrored

Welded rolled metal from non-ferrous metals for heating is obtained from sheet steel. The presence of a seam on such pipes is their “weak link”, since it creates, albeit scanty, a prerequisite for future leaks at the junction of the edges.

Seamless rolled metal made of stainless steel is more durable than welded metal, but more expensive. If your budget allows, then it is more advisable to use it in the heating system of your home. seamless pipes, the most resistant to all types of influences and loads.

As in the case of welded ones, seamless ones are connected using welding. On the one hand, this creates the preconditions for leaks in the future (subject to poor-quality welding of joints), on the other hand, it does not always suit home owners if the installation/replacement of the system is carried out in a residential building with expensive renovations on the premises. In this case, if the owners want to install heating with pipes that have the longest service life, we can recommend corrugated pipes.

Corrugated heating pipes made of stainless steel are a relatively recent industrial achievement, which appeared thanks to the efforts of Japanese technologists.

Such pipes are made from steel strip, which is then molded under high temperatures (up to 1150 degrees)

Corrugated pipes have the longest service life

In addition to technical qualities similar to the performance characteristics of conventional heating pipes made of the same material, they have a unique property - they can be bent without the use of additional equipment (R bending determines the diameter of the pipe). This allows:

  • reduce the cost and reduce the duration of installation work - there is no need to use welding
  • reduce the cost of purchasing connecting elements for underfloor heating systems.

Why is installing accordion pipes cheaper and easier?

When installing corrugated pipes, the master only needs gas keys and pipe cutter. To connect individual sections into one line, use compression fittings, into which high-temperature silicone seals are inserted. After securing the ends of the pipes in the fitting, secure fastening is carried out by tightening the seal with a compression nut.

Disadvantages of pipes made of stainless steel accordion

  • cannot compete with seamless or welded ones in resistance to particularly high temperatures;
  • susceptible to mechanical stress (because of this, they are not recommended for installation in children's bedrooms and playrooms);
  • may lose their tightness under the influence of certain alkalis and acids (cannot be installed in rooms where there is a possibility of aggressive chemicals getting on the surface of the heating system).

Installation of corrugated heating pipes is easy

Bottom line

When arranging a heating system at home, wanting to insure as much as possible against pipe leaks in the future, it is advisable to use pipes made of stainless steel. When laying a line in a newly built house with unfulfilled decorative and finishing work, you can safely weld pipes using welding. And remember, high quality a stainless steel pipe, the price of which does not exceed the market price, will be the most acceptable. If you choose a pipe for a heating system, then the conclusion is obvious, it’s better buy a stainless steel pipe.

In residential buildings where the use of open flame burners is not possible for safety reasons, the heating system can be made using corrugated pipes. You can find out where to buy stainless steel heating pipes in your city by contacting a store that sells plumbing fixtures or building materials, or by using the capabilities of a virtual network.

Video review of a recent industry achievement - stainless steel corrugated pipes:

In this video you will learn more about what it is stainless steel corrugated pipe.

10376 0 4

Flexible, hot, shiny: stainless steel pipes for heating

In this article I want to introduce the reader to a relatively new material - corrugated stainless pipe. We will study it key features, let's get acquainted with several samples from different manufacturers, let's compare corrugated stainless steel with competing solutions and explore the rules for its installation.

What it is

A stainless steel corrugated pipe for heating is a thin (with a wall thickness of 0.3 mm) corrugated stainless steel, obtained by rolling an endless tape. Here is a typical metal composition:

Some grades of steel used in the production of corrugated pipes contain up to 30% molybdenum. It increases the toughness and strength of the metal.

For installation of pipes they are used compression fittings with high temperature silicone seals. When the union nut is tightened, the silicone ring compresses the corrugated pipe, eliminating spontaneous disconnection of the connection.

For installation in cold water supply systems, pipes are supplied with an outer polyethylene sheath. Polyethylene has a relatively low thermal conductivity and helps get rid of condensation. The same pipes can be used for heating: the shell will prevent possible burns when high temperature coolant(for example, when installing a radiator in a children's room).