Not every battery is suitable for installation in apartment buildings, because frequent pressure surges in the system and the use of water as a coolant affect the performance of radiators. Some metals undergo corrosion and oxidation when they come into contact with water and air. The cast iron radiator remains tested.

Characteristics of cast iron radiators

• The material used is resistant to corrosion.
• Due to the resistance of cast iron to physical influences, batteries are used with any type of coolant. His Maximum temperature can be 150 degrees. A distinctive feature is its resistance to oxidation, because cast iron does not react when in contact with water, even if the acid-base balance reaches 9-10 Ph.
• It perfectly accumulates heat, which increases its heat transfer when compared with other materials. Cast iron batteries retain heat for a long time after the coolant supply is turned off.
• The durability of heating devices is up to 30 years. At correct installation and care, climate control equipment lasts longer than expected.
• Thick walls are the reason why cast iron radiators live a long life.
• The number of sections can be varied to achieve the desired level of heating.
• If one section is damaged, only replace it, and not the entire battery.

Design modern devices heating differs from the usual old “accordions” that are installed in some apartments. Devices created using artistic casting and made in retro style are popular.

Suitable for three types connections.

• Lower. With this connection, the pipes are connected to the lower outlets on both sides. The disadvantage of the lower connection is low circulation.
• Side. This connection method provides for maximum coolant circulation, since the pipes are connected to the outer section into the lower and upper outlets of one side.
• Upper. The pipes are connected to the upper outlets of the outer sections. The circulation with this connection is much higher than with the lower one.

Cast iron radiators cast from an alloy of homogeneous mass intended for use in heating systems apartment buildings. Sections are manufactured separately and connected using engineered gaskets and nipples for tightness.

The heater power stated in the technical specifications almost always differs from the actual one. This is due to the testing of the radiator in laboratory conditions, which differ from real ones.

The heated coolant flows through the pipes heating system into the radiator compartments and heats the air in the room, releasing heat.

Types of cast iron radiators

• Single channel. In the design of radiators of this type, each section has a channel through which the coolant liquid. Climate control devices of this type are easy to clean, which is why they are installed in medical institutions.
• Two-channel. In one section of heating devices of this type there are 2 channels, which increases heat transfer.
• Three-channel. The heat transfer rates are higher compared to other species, while their weight and depth are much greater than those of their counterparts.

Two- and three-channel heating radiators use fins, which increase heat transfer. Sections are stylized in different styles, from retro to futuristic. Sometimes a metal casing is used to hide the battery.

Double-channel heating radiators are popular because they are compact and have good heat dissipation.

Cast iron heating radiators are divided according to installation method:

• Wall-mounted. They are mounted on walls using reinforced brackets; this type of fastening is classic.
• Floor-standing.The batteries are supplied with four legs. They are part of the outer sections, so they are difficult to break off. These do not require additional fasteners, which will save the wall. In addition, not all walls can withstand cast iron. It is more convenient to clean after them, since the distance from the wall can be much greater than that of classical types fastenings.

In height, on average, sizes range from 35 to 150 cm. The length depends only on your preferences, because the number of sections can be different, and the width directly depends on the number of channels.

Disadvantages of cast iron radiators

• Weight. This is the main disadvantage for cast iron products, and radiators are no exception. Because of the weight, and not because of aesthetics, the production of batteries with “legs” began, because not every wall is capable of supporting the considerable weight of cast iron.
• Thermos effect. They are classified as pros and cons. Cold radiators take a long time to warm up. When the heating is turned off, cast iron, due to the same property, remains warm for a long period of time and continues to give off heat.
• Water hammer. Some models of cast iron heating devices cannot withstand water hammer. The shocks occur in apartment buildings connected to a centralized heating system. This can be solved by installing a pressure regulator.
• Pollution. Cast iron batteries collect a lot of dust, and the design does not always allow for complete and high-quality cleaning.
• Appearance. Externally, cast iron devices are attractive, however, it is worth paying extra for beauty. Products made from this metal are sold unpainted, therefore appearance doesn't inspire sympathy.

Ways out of this situation:

Paint the battery yourself. A painted battery may look unsightly if the layers of paint are applied unevenly.

Install a grill over the climate control unit. With the help of metal covers, you can “hide” the battery from prying eyes, however, such covers reduce the quality of heat transfer, and the room becomes cooler.

Order a cast iron radiator made in the style of an artistic cast. Batteries cast in different styles, do not need painting. This radiator is not suitable for all interiors.

Calculation of sections of cast iron radiators

Before purchasing a cast iron unit, you will need calculations that will allow you to more accurately determine required amount sections. The example uses the following data:

1. The amount of heat generated by one section is 145 watts (the average figure is taken, the exact data is in the product data sheet).
2. The calculation is made for a room with normal insulation, one street wall and one window. According to SNiP, the amount of heat required to heat it is 100 watts.
3. The dimensions of the room are 4 x 3 meters.

Calculation

1. The area of ​​the room is determined. It is equal to 12 m2.
2. Multiply the area and the amount of heat needed to heat one square meter of room. According to SNiP, the room in the example requires 100 watts/m2. After performing this action, you get 1200 watts.
3. The amount of heat required for the room must be divided by the heat transfer of one part of the battery. Afterwards, round the result up.
4. The number of sections required for installation is obtained. For the room indicated in the example, a radiator consisting of 9 sections is installed.

The calculation is focused on rooms whose height does not exceed 3 meters.

Since each room is unique, there are coefficients that allow more accurate calculations:

For precise measurement amount of heat per square meter, you need to divide the ceiling height by a factor of 3. For a room with a ceiling of 2.5 m, it will be 0.83.

For calculations, the average coolant temperature is used, which is 70 degrees. When this indicator increases, 15% must be subtracted from the final number every 10 degrees; when the temperature decreases, do the opposite.

If the room has not one, but 2 or 3 street walls, then it is worth multiplying the amount of heat for 1 m2 by a factor of 1.75. After this, the number of sections must be divided by the number of windows and radiators installed under each of them. This will ensure uniform heating of the entire room.

If the room has additional thermal insulation layers, as well as if double-glazed windows are installed, the amount of heat for 1 m2 is allowed to be divided by 0.8.

For houses located in regions with extreme low temperatures, the amount of heat for 1 m2 increases by 2 times.

Before installing a cast iron radiator, you need to disassemble it into sections, check the fastening of the nipples, and then reassemble it. You need to install it taking into account the weight of the battery and the material of the wall in the room. Minimum set of tools – grinder, hammer drill, adjustable wrench, building level and a die.

1. If the wall is brick or concrete, select fasteners that are designed to support the weight of the radiator with coolant. According to SNiP, the use of 3 or more brackets is recommended.

2. You cannot hang cast iron radiators on walls made of wood or plasterboard. because they may not be able to withstand the load. In this case, you can install the radiator on floor stand or legs. It is attached to the wall only to maintain it in an upright position.

After installing the radiator, it is connected to the central heating using connecting sleeves and a conduit. Threaded connections It is recommended to seal.

Cast iron radiators must be periodically tinted with paint that can withstand heating temperatures without changing color.

Connection to the heating system:

1. Diagonal. Used when connecting multi-sectional units. The supply pipe is connected at the top on one side, and the return pipe at the bottom on the other.

2. Lower. Used when pipes are hidden in the floor of a room or behind baseboards. This is an aesthetic way to connect. The supply and return pipes are located at the bottom.

3. Lateral. The supply pipe is connected to the upper fitting, the return pipe to the lower one. Side connection has the greatest heat transfer. In case of poor heating in multi-section heating devices, it is recommended to install a coolant flow extension.

4. Consistent. The coolant moves under pressure heating structure. Mayevsky taps are used to remove air. The disadvantage is the need to remove batteries and turn off heaters during repairs.

5. Parallel. The connection is made through a pipeline connected to the supply riser. The coolant leaves through a pipe connected to the return line.

Radiators and their varieties

To ensure that your home is always warm and cozy, you need to be extremely responsible when choosing batteries. Let's talk about the types of heating radiators, the advantageous characteristics of each type, their technical features and disadvantages.

Today, the heating appliance market offers a huge variety of different modifications. Therefore, the consumer is often lost in the assortment and does not know which radiator to choose. It will help answer this question benchmarking the most common options.

Existing varieties based on material of execution

There really is plenty to choose from - there are batteries on the shelves of specialized stores different forms and sizes. But almost all of them are made of four main materials. Therefore, experts distinguish four main types of radiators:

• Cast iron.
• Aluminum.
• Steel.
• Bimetallic.

Note! Each has its own scope of application, its own advantages and disadvantages. By comparing them, you can form a correct idea about the heating device.

Therefore, let’s take a closer look at each one separately.

Cast iron batteries - main technical characteristics

The domestic central heating system was initially focused on the use of cast iron radiators. And the devices have stood the test of time with dignity. Even today they are considered optimal, but the appearance of such batteries does not meet the requirements of modern decor.

Cast iron radiators can operate for decades without requiring special costs for repairs. And all because cast iron is resistant to impurities contained in the coolant. They are used to maintain its temperature, as well as to maintain the throughput capabilities of heating mains.

Special technical characteristics

Modern manufacturers still produce cast iron batteries. At the same time, new heating devices have become more elegant, and even interesting decorative masterpieces made in retro style have appeared.

However, when buying radiators, experts recommend not chasing beauty, but paying attention to technical specifications devices:

• Firstly, these are heat transfer indicators, weight of one section and Atmosphere pressure which each battery can withstand.
• Secondly, the power of the unit, its width, height, depth of the ribs, as well as the advantages of the material from which the sections are made are of no less importance.

Positive aspects of use

Cast iron radiators have a lot of advantages:

1. The material has high corrosion resistance, which is due to the interesting property of the metal. During operation, the surface of the product becomes covered with dry rust, which prevents further spread of the process. High anti-corrosion resistance allows the use of cast iron batteries in systems where steam with a temperature of more than 150 degrees is used as a coolant.
2. The durability of cast iron batteries is ensured by their thick walls. It will take a long time for cast iron to rust through, so this type radiators are considered the most reliable. For the same reason, they can be used in open systems and where the coolant is completely drained to summer time. For comparison, steel is afraid of oxygen, so products made from it must always be filled with water. Otherwise, they will not last even two seasons; they will quickly rust from the inside and leak.
3. Cast iron is not afraid of low-quality coolant. It does not react to an alkaline environment whose pH exceeds 9.5 units. Small pebbles, salt impurities, and rust coming into the batteries from the main line do not cause dangerous damage. Cast iron is difficult to scratch or dissolve because its abrasive resource is inexhaustible. The only weak point is the seals at the joints of the sectional parts.
4. High thermal inertia and excellent storage properties also distinguish the products from analogue products. Even if the coolant supply is stopped, the batteries continue to heat the room, gradually releasing heat and slowly cooling down.

Negative points

Types of water heating radiators

However, cast iron radiators also have plenty of disadvantages:

1. The product is heavy, which makes it difficult to transport and install the heating device.
2. A large volume of coolant, which aggravates the first circumstance. To completely fill the cast iron sections, a decent amount of water is required, which further burdens the heating device. And this requires the installation of additional fasteners.
3. The narrower the radiator, the less efficient it is, and the wider and taller the model, the more ridiculous it looks from the point of view of modern decor.

By weighing the pros and cons, you can make the right choice.

Aluminum radiators

Aluminum batteries have recently appeared on the market. New products immediately attracted the attention of consumers, and for a long time they were the only ones that competed with their cast iron counterparts. However, the joy was short-lived. It turned out that aluminum devices have a lot of technical characteristics that set strict restrictions on their use. Let's look at them in more detail.

Beautiful appearance, light weight, high heat dissipation - one could only dream of such technical characteristics. But practice has shown that aluminum batteries cannot be used everywhere.

Manufacturers offered customers two types of heating devices:

1. Cast construction, where each section is a single piece.
2. Extrusion units in which a section consists of elements glued together.

It is better to purchase cast products, since extrusion ones have a weak point - it is located where the columns connect to the core. Both of them can withstand high atmospheric pressure of 16 atmospheres. In this case, the safety margin is up to 40 atmospheres.

Pros and cons of aluminum radiators

Advantages of aluminum heating devices

The advantages of aluminum heating devices include the following:

1. Aluminum models have high power. The more sections the battery includes, the large area it can warm up. The air heats up very quickly, using less coolant.
2. Aluminum radiators are much lighter than their cast iron counterparts, but at the same time they look very elegant, elegant and modern.
3. The described heating devices fit perfectly into modern stylistic concepts.

And everything would be fine, but you can’t use aluminum batteries everywhere. Aluminum is a fragile material that is afraid alkaline environment. Alkali literally corrodes parts, turning their surface into a porous sponge that can break at any moment.

Note! That is why it is necessary to carefully monitor the quality of the coolant - its pH should be within 7-8 units. But even this indicator does not correspond drinking water, which is served to Russian residents.

Any impurities clog up very quickly aluminum battery, so install it on the system central heating it is forbidden. It should not be connected to pipes made of other materials, as this will accelerate corrosion processes.

You are not allowed to install the devices yourself. After all, there are a lot of nuances that require mandatory compliance during installation. And if you are not a professional, you can make gross mistakes that will lead to incorrect operation of the batteries and their rapid breakdown.

Steel models

Manufacturers continue to experiment and use other materials to make radiators. Therefore, steel batteries were born, which could not become a universal alternative to the two options described above.

Radiator heating Aqua-Pex

Steel is stronger than aluminum, but it is afraid of oxygen and corrodes much faster than cast iron, but its heat transfer is much higher. These models are not suitable for unstable heating systems, as they are very sensitive to water hammer and do not tolerate coolant drainage well.

Therefore, use steel batteries in apartment buildings and in rooms heated with central system, it is forbidden. But the owners of private houses installing autonomous systems heating systems, may take a closer look at this option.

Appearance steel radiators does not cause any complaints. Moreover, you can find various modifications of devices on sale, choose tubular or panel products presented in a wide range of colors.

Bimetallic products

Bimetallic batteries are a new generation of heating devices. They are made of two materials, so they incorporate the advantages of steel and aluminum devices. Manufacturers thereby wanted to compensate for their shortcomings. Therefore, the cores are made of durable steel, and the casings are made of aluminum.

What does this give? Aluminum in this combination becomes less sensitive to water hammer, while steel makes it easier to relate to the quality of the coolant. The steel core is internally treated with special polymer compounds, which reduces the risk of corrosion.

Undoubtedly, such models could be an excellent alternative to cast iron heating devices, but the high price does not make them popular and in demand. At least for now.

Generalization on the topic

As you can see, the range of radiators has increased significantly, and now you can choose the option that is most suitable for specific operating conditions. For those who live in apartment buildings and want to save on replacing heating appliances, experts recommend using only cast iron models. And steel and aluminum radiators can only be used in systems autonomous heating.

Batteries are an important part of the heating system in apartment building. The room temperature depends not only on how hot water runs through the pipes. The quality of room heating depends on the design, material, power and method of placement of heating radiators.

Extremely wide range heating equipment may cause difficulties in selecting suitable batteries. In order to find out which devices to give preference to, you will have to first study the features existing types batteries

Various types of heating devices

There are several classifications of batteries.

Depending on the type of heat or energy carrier, they are divided into the following types:

• electric radiators;
• oil radiators operating on electricity;
• water batteries.

Depending on the material, batteries are:

• cast iron;
• steel;
• aluminum;
• copper;
• plastic.

Depending on the design, heating radiators are divided into the following types:

• sectional - thanks to the presence of separate sections, they allow you to adjust the size and power of the installed heating device;
• tubular - batteries designed specifically for a centralized heating system. They are an all-metal structure with a horizontal manifold and vertical tubes;
• panel - made of steel and even concrete. In the second case, such batteries are located inside the walls and transfer heat in the form of radiation;
• lamellar - have a core with lamellar ribs mounted on it from thin sheets metal, carry out convection-type heat exchange.

Types of batteries suitable for apartments

Let's consider what types of radiators are suitable for a standard centralized heating system in an apartment building. It is characterized by the use process water as a coolant, high operating pressure and temperature. The characteristics of heating devices for an apartment must correspond to the features of this system. Compare device parameters from different materials To understand which types are suitable for your home, you can use the table.

Classic radiators made of cast iron, despite a large number of modern analogues made from other materials are not going to retire yet. Cast iron is resistant to corrosion and impact high temperatures, durable. Some manufacturers have changed better side appearance of cast iron products, decorating them with carvings and turning this device into a design element.

Tip: The radiation intensity of the radiator can be increased by painting it dark.

Bimetallic radiators

Efficiency and reliability bimetallic radiators achieved through a combination of two types of materials: steel and aluminum. The high thermal conductivity of aluminum makes it an excellent material for a battery case, and the strength of steel ensures immunity to pressure changes and corrosion processes. Best on Russian market Bimetallic products from Italian manufacturers are considered.

Steel radiators

Steel radiators can be panel, tubular or sectional. The first type is the most popular due to optimal combination characteristics and cost. However, steel batteries are practically not used in multi-storey buildings with central heating, since they are not designed for high pressure systems.

Aluminum batteries

Aluminum radiators have very attractive characteristics, including excellent heat transfer and low inertia, allowing you to quickly change the temperature in the room. But they are very demanding on the quality of the coolant, so they are also not suitable for a centralized heating system.

Copper heating radiators

Copper batteries have a lot of advantages and only one drawback - very high cost. Their performance characteristics impressive: copper radiators are superior existing species in terms of efficiency, reliability and durability, as well as resistance to corrosion and water hammer.

Installation of copper radiators expensive pleasure not only because of the cost of the battery itself. They can only be connected to all-metal pipes, which are also expensive. Take advantage of the advantages of copper, and at the same time purchase the product at more affordable price You can if you choose a copper-aluminum radiator, the tubes of which are made of copper and the fins are made of aluminum.

Plastic batteries

Most the new kind heating devices are plastic batteries. Such products are easy to install and have wide choose flowers and do not require additional care. However, many apartment owners interested in the new product will be disappointed: plastic radiators cannot be installed in a house with a centralized heating system. The reasons for this are the maximum operating temperature and pressure, which should not exceed 80 degrees and 2 bar, respectively.

Attention: for standard room with a three-meter ceiling height, having one door and one window, a radiator power of 90 to 125 W will be required per square meter.

The required number of sections will depend on the material the radiator is made of. Power of one section different types batteries:

• Cast iron - from 80 to 150 W;
• Aluminum – 190 W;
• Bimetallic – 200 W;
• Steel - from 450 to 5700 W (meaning the power of the entire battery).

High quality and effective work Heating systems are the key to comfort and coziness in any room. This means that the selection of all elements of the heating system must be approached with the utmost care, giving preference only to the best offers on the market.

One of the main components of any heating system is radiator - a specialized device that transfers heat from the coolant to the air in the room. Currently, the choice of heating batteries is simply huge and property owners are often at a loss if they have to choose a specific option.

In order to eliminate such troubles, it is necessary to understand the main characteristics of the equipment and consider the advantages and disadvantages of each radiator.

Heating radiators: functions and features

Modern heating batteries– devices that, in addition to solving the main problem (heat transfer), also have a number of additional advantages:

• Stable heat transfer with high energy output;
• Stylish appearance, the ability to fit into any interior;
• Low thermal inertia;
• A variety of design options, ranging from standard to designer models.

Design solutions for heating radiators: variety of types

On the domestic market types heating radiators are extremely widely represented. Differentiation of all such equipment can be made according to several basic parameters, including the material of manufacture and design features. It is the last parameter that means a lot for the efficiency of the heating system; it also affects the cost:

• Sectional heating batteries. These types of heating radiators differ in that they consist of a certain number of sections. Can be made of steel or aluminum. Dimensions, as well as width, depth and weight may vary depending on the model range;
• Tubular radiators. The main component of such elements of heating equipment are special curved tubes through which the coolant circulates. Materials for such devices can be very diverse, ranging from steel to copper;
• Panel radiators. The containers where the coolant circulates from the system are made in the form rectangular panels. The dimensions of such products can be very diverse.

Most Popular panel radiators are all kinds of wall and ceiling panels. As a rule, the features of such devices include a low-temperature heating surface, a radiation component of the heat flow, and the possibility of do-it-yourself installation;

• Plate batteries. Essentially, these are plates of steel or copper on which additional heating elements. The structure can be either covered with a casing or equipped with a decorative grille, or even simply open.

Advice: The choice of the design of a particular heating radiator should be made based not only on personal preferences, but also on the design of the heating system and the area of ​​the room.

Materials for the manufacture of heating radiators: large selection and unique qualities

Today, types of radiators for heating are presented in a wide range.

One of the factors that you should pay attention to when choosing a particular type is the materials used.

• Steel radiators. Such batteries can be seen in photos and videos of many designs. modern houses. Radiators appeared relatively recently on the domestic market (only 20-30 years ago), but have gained enormous popularity among consumers.

Heating devices of this group transfer heat from the coolant by convection. Wherein distinctive features This type of heating radiator is characterized by an increased level of heat transfer, ease of installation and versatility. In addition, the price of steel batteries is affordable for everyone.

Steel radiator sections are connected spot welding, which increases strength and extends the trouble-free operation of equipment. The main coating for batteries is a high-quality and environmentally friendly varnish that is resistant to many aggressive factors and mechanical damage.

It should be noted that in addition to the advantages, steel radiators also have some disadvantages. For example, steel batteries are afraid of water hammer and are sensitive to the quality of the coolant;

• Cast iron radiators. The most traditional and practical radiators. They have excellent thermal conductivity and are able to withstand the effects of low-quality coolant.

Radiators made of cast iron can be effectively used in any heating systems, from centralized to autonomous. These are the most popular radiators on the domestic market, due to their low cost.

Despite all the advantages, cast iron batteries also have disadvantages. For example, when the pressure in the system increases above 6 atm, gusts may occur. And such structures look bulky and not very attractive, and therefore their use in newfangled interiors is unacceptable;

• Aluminum heating radiators. Beautiful appearance, sectionality, light weight and increased heat dissipation - all this today attracts consumers in batteries made of aluminum. They work efficiently and without problems for about 5-7 years and do not require repair or replacement.

The main problem that may arise when operating these batteries is the need to maintain a certain pH value of the coolant in the system ( optimal value 7-8). Another problem that plagues owners is the regular airing of the system.

In various specialized stores in our country you can find three main types aluminum radiators– solid (profiles connected by welding), sectional and combined. The cost of radiators of this group depends, as a rule, on the number of sections;

Tip: If you intend to install aluminum radiators in the heating system of a house, apartment or office, it is important to comply with some installation requirements. For example, there should be no antagonistic metals in the system, otherwise a conflict of materials will arise, which will lead to accelerated corrosion.

• Bimetallic radiators. Modern and original choice for any type of heating system. A feature of such heating devices is the ability to withstand high pressure in the system, resistance to water hammer, as well as the use of any coolant.

These types of heating radiators have original design– they combine two types of materials at once (usually copper and aluminum or steel and aluminum), which makes it possible to achieve increased efficiency work and heat transfer, significantly extend the life of trouble-free operation. At the same time, bimetallic batteries are resistant to high pressure, and therefore can be chosen for both autonomous and centralized systems heating.

Long service life of bimetallic heating radiators (about 20 years), the ability to operate at high blood pressure(up to 20 atm), as well as the possibility of individual selection of the number of sections, make such batteries best choice for many properties.

Another advantage of bimetallic radiators is the reduced volume of coolant circulation, which allows you to save on coolant. Disadvantages - small cross-section of tubes (12-15 mm) and high blood pressure in the system, which affects the life of the boiler and threaded fittings.

The weight and dimensions of cast iron heating radiators will primarily depend on the number of sections in one device, but these same sections can also differ radically from each other, since they are single-, double- and triple-channel.

But, despite their bulkiness, cast iron batteries are in great demand for water systems central heating, since they fully comply with the necessary parameters for heat transfer and strength under any possible surges in coolant pressure.

It is these devices, familiar to probably every Russian citizen who has reached the age of conscious, that we will talk about, and we will also show you a video in this article.

Cast iron radiators

A cast iron radiator is a convection-radiation column heating device, which is assembled from several sections. It was invented by Franz San Galli in 1857.

Types and designs

• As we have already said, how much a cast iron heating radiator weighs, as well as its volume, directly depends on the number of sections, as well as on the number of channels in a single section of this device. For example, we will consider such heaters from the ChM series, which are made in accordance with the requirements of GOST 8690-94. All of them are designed for installation taking into account the depth of the opening under the window, that is, small, medium and large depths, which can be filled based on the number of columns in the sections.
• Heating devices of the ChM series are designed for centralized water heating systems for residential, public and industrial buildings with a minimum working pressure of 1.2 MPa (12.236 atm) and (test) pressure of 1.8 M Pa (18.354 atm) and a water temperature not higher than 150 ᶷC (their price is the most affordable).

• Of course, the weight of cast iron heating radiators will also depend on the sections, from which it is assembled, and they are made of gray cast iron in a sand-clay form using the casting method, which allows the device to maintain stable characteristics for about 40 years or more.
• Cast iron is a fairly resistant metal to low-quality coolant, that is, water may have a high content of salts, alkalis and rust, but at the same time it is porous, which contributes to the delay various elements and sludge sedimentation, so batteries need regular maintenance.

The complete set of the cast iron heating device also consists of two side plugs (left-hand thread G 1 ¼), as well as two fittings or, as they are also called, through plugs (G 1 ¼ right-hand thread) and a hole with left-hand thread G ¾ for heat pipe fittings. When joining sections together, steel nipples and heat-resistant rubber gaskets are used in accordance with TU 38.105376-92.

Note. One of the most negative factors that can characterize such heating devices is the weight of the cast iron radiator and its long heating time, which is why, strictly speaking, it is not used in autonomous heating systems - high energy consumption for boilers using any type of fuel.
But at the same time, it gives off heat for a very long time, which makes it possible not to turn on pumps for water circulation so often, therefore, such batteries are almost ideal for centralized systems.

Section parameter name	Digital designation
	World Championship1-70-300	World Cup1-70-500	World Championship2-100-300	World Championship2-100-500	World Championship3-120-300	World Championship3-120-500
Number of channels	Single channel rectangular		Two-channel rectangular		Three-channel rectangular
Weight (kg)	3,3	4,8	4,5	6,3	4,8	7,0
Volume (l)	0,66	0,9	0,7	0,95	0,95	1,38
Heating surface area (m2)	0,103	0,165	0,148	0,207	0,155	0,246
	0,075	0,110	0,1009	0,1426	0,1083	0,1568
Installation height (mm)	300	500	300	500	300	500
Height (mm)	370	570	372	572	370	570
Depth (mm)	70	70	100	100	120	120
Width (mm)	80	80	80	80	90	90

Table: specifications cast iron radiator for one, two and three channels

Designation World Cup-1	Number of sections (pcs)	Heat Flux Rating (kW)		Weight, kg)		Radiator length (mm)
World Cup1-70-500-1,2-2	2	0,22	48,64	10,7	0,396	178-184
World Cup1-70-500-1,2-3	3	0,33	47,58	15,7	0,594	258-265
World Cup1-70-500-1,2-4	4	0,44	47,05	20,7	0,792	338-346
World Cup1-70-500-1,2-5	5	0,55	46,73	25,7	0,990	418-427
World Cup1-70-500-1,2-6	6	0,66	46,52	30,7	1,188	498-508
World Championship1-70-500-1,2-7	7	0,77	46,36	35,7	1,386	578-589
World Cup1-70-500-1,2-8	8	0,88	46,25	40,7	1,584	658-670
World Championship1-70-500-1,2-9	9	0,99	46,16	45,7	1,782	738-751
World Cup1-70-500-1.2-10	10	1,10	46,09	50,7	1,980	818-832

Table of characteristics of ChM-1-70-500-1.2

World Cup 2 designation	Number of sections (pcs)	Heat Flux Rating (kW)	Specific material consumption (kg/kW)	Weight, kg)	Heating surface area (? t =70° C), ECM	Radiator length (mm)
100-500-1,2-2	2	0,285	48,1	13,7	0,512	178-184
100-500-1,2-3	3	0,428	47,2	20,2	0,769	258-265
100-500-1,2-4	4	0,570	46,8	26,7	1,024	338-346
100-500-1,2-5	5	0,713	46,7	33,3	1,281	418-427
100-500-1,2-6	6	0,856	46,5	39,7	1,537	498-508
100-500-1,2-7	7	0,998	46,4	46,3	1,792	578-589
100-500-1,2-8	8	1,141	46,4	52,9	2,049	658-670
100-500-1,2-9	9	1,283	46,3	59,4	2,304	738-751
100-500-1,2-10	10	1,426	46,1	65,8	2,561	818-832

Table of characteristics of ChM-2-100-500-1.2

World Cup 2 designation	Number of sections (pcs)	Heat Flux Rating (kW)	Specific material consumption (kg/kW)	Weight, kg)	Heating surface area (? t =70° C), ECM	Radiator length (mm)
120-500-1,2-2	2	0,314	47,78	15,1	0,564	198-206
120-500-1,2-3	3	0,470	46,95	22,3	0,844	288-297
120-500-1,2-4	4	0,627	46,60	29,5	1,126	378-388
120-500-1,2-5	5	0,784	46,39	36,7	1,408	468-477
120-500-1,2-6	6	0,941	46,21	43,9	1,690	558-568
120-500-1,2-7	7	1,098	46,11	51,1	1,972	648-659
120-500-1,2-8	8	1,254	46,05	58,3	2,252	738-750
120-500-1,2-9	9	1,411	45,96	65,5	2,534	828-841
120-500-1,2-10	10	1,568	45,92	72,7	2,816	918-932

Table of characteristics of ChM-3-120-500-1.2

Assembly, disassembly

As we have already said, you can increase or decrease the heat transfer and volume of a cast iron heating radiator by adding or unscrewing sections, of which there can be from two to infinity, although it is unlikely that anyone will install more than 15 pieces.

Most often we have to deal with two-column sections, which you see on top photo– they are connected using a nipple and heat-resistant rubber gasket. The nipple inside has rounded shape with two parallel planes, which allows you to fix the key head there, but inner diameter can be either 1 ¼ ̎or 1 ̎.

In accordance with this, a key is selected, where the head can be flat or repeat the internal shape of the nipple - the instructions are silent on this matter. In order to unscrew one or more sections, you need to insert the key so that the head reaches the nipple, which is located at the junction, therefore, first it is placed on top of the battery to mark the immersion depth on the rod.

The forces applied to rotate using the gate are usually not enough, therefore, the lever is increased by cutting a pipe - the same lever is needed during assembly so that the connection does not leak.

Conclusion

You can always assemble and disassemble a cast iron radiator with your own hands, if you have a wrench with a suitable head for this, but you will need to install new gaskets, and sometimes new nipples. When connecting the battery to the heating circuit, it is advisable to ensure that it shut-off valves for the possibility of dismantling during the heating season.