Heating radiators bimetallic section sizes. What are the dimensions of aluminum radiators. Bimetal and steel

Bimetallic radiator

Device

Each type of radiator has its own advantages. The cast iron radiator is durable, retains heat for a long time, but does not have a very attractive appearance. Aluminum looks aesthetically pleasing, has a high level of heat transfer, but is short-lived. The steel battery is durable, but retains heat no worse than previous models and requires additional decor if used in a residential area.

Among different types Batteries bimetal radiators have incomparable advantages. They are made from steel and aluminium. From steel, they received strength and reliability, from aluminum - an attractive appearance. Due to the harmonious combination of the qualities of both metals, a bimetallic battery can long time keep warm.

Design features

Water contains a large amount of impurities. When in contact with aluminum, they cause corrosion. Over several years of use, these processes will lead to the flow of the device.

The design feature of these radiators is the presence of an internal stainless steel core, which is surrounded on the outside by an aluminum alloy. So water does not come into contact with aluminum, which significantly extends the life of the system.

There are two manufacturing options:

1. Pseudo-bimetal. In this case, the steel core is located only inside the vertical channels. So aluminum is not completely protected, but only in the weakest places. These models are cheaper and have a typical service life of up to 10 years if they are used in systems with high water pressure (for example, in urban apartments).
2. Bimetal. It has a one-piece inner case made of steel, which is cast on top with an aluminum alloy under pressure. Here aluminum is protected from all sides. These are more expensive models and their service life under similar operating conditions is up to 30 years.

Bimetallic battery device The manufacturing method directly affects the volume of water in the bimetallic radiator section. If we compare with any other battery, then the volume of one section here will be significantly lower. The disadvantage is compensated by the presence of two alloys. As a result, the inner core of steel does not allow the aluminum shell to cool quickly.

There is different ways compounds of two metals. It is preferable if aluminum is poured over steel under pressure. This type of battery will last longer. There is an option when the metals are joined together by welding.

According to the technical type of construction, radiators can be:

• Collapsible. This means that with the help of a radiator key, you can unscrew any number of sections and screw them to another radiator. This type is more often installed in private houses with an autonomous heating system, where there is no high water pressure.
• Non-separable. The radiator is monolithic, it cannot be untwisted, cut, attached to another. Perfect for use in a city apartment, where there is always a high level of pressure.

Dimensions

The size of the sections of a bimetallic radiator is determined by the distance from the middle of the inlet to the middle of the outlet. Today, batteries are made with the distance between the indicated holes:

• 200 mm;
• 350 mm;
• 500 mm.

Dimensions of bimetallic heating batteries

Before choosing the required dimensions of the radiators, it should be remembered that from the floor to the bottom of the radiator there should be at least 12 cm, and from its top to the protruding part of the window sill - at least 10 cm. Otherwise, there will not be sufficient air circulation, which will reduce the efficiency of heat transfer of the device.

The width of the section is in the range from 80 to 90 mm. Thickness - from 80 to 120 mm. Height, width and thickness affect the energy output of the battery.

Section capacity

The specific design of the radiators determines their rather low capacity. This is both good and bad.

Small capacity does not require a large number coolant ( hot water), which means it saves water and fuel to heat it up. But the less coolant, the faster the radiator cools down. Here, rapid cooling does not occur, since there is also a steel shell between the water and the aluminum surface, which does not cool for a long time.

Joining two metals

A small capacity contributes to rapid contamination, clogging of channels when using low-quality water. To solve this problem, a cleaning system is installed in a private house. Minimum requirement- installation of two filters: fine and coarse.

The volume of one section depends on its size:

• with a distance between the inlet and outlet of 500 mm, the capacity of the section will be 0.2–0.3 liters;
• at a distance of 350 mm, the capacity will be 0.15–0.2 liters;
• a distance of 200 mm guarantees a volume of 0.1–0.16 liters.

Calculation of the number of sections

The volume and number of sections determines the thermal power of one radiator. Before making a purchase, it is important to calculate this power in order to find the number of sections required for the room. To do this, use either of two formulas:

1. General. When the calculation of sections is based on the area of ​​\u200b\u200bthe room. On average, at least 1 kW of energy is required per 10 m 2. For calculation, the formula N = S × 100/Q is used. Where N is the number of sections for the room, S is the area of ​​the room in square meters, Q is the power output of the section. Energy capacity is indicated by the manufacturer on the packaging or on related documents.

Let's try to calculate the number of sections for a room of 25 m 2, with an energy power of the section of 180 watts. It turns out: 25 × 100/180 = 13.88. After rounding, we get 14 sections (rounding must be done up). With a width of 8 centimeters, the total width of the radiator will be 112 centimeters. In this case, you can install 2 radiators each with 7 sections.

2. Detailed. This formula takes into account the volume of the room in cubic meters (m 3). On average, 41 W of energy is needed per 1 cubic meter of space. Next, use the formula N \u003d S × 41 / Q, where N is the number of sections for the room, V is the volume of the room in cubic meters, Q is the energy power of the section.

Radiator sizes

We calculate the number of sections for heating a room with the following parameters: length 5 meters, width 3 meters, ceiling height 2.5 meters. First you need to find the area of ​​the room. We multiply the length by the width and get 15 m 2. We multiply the resulting figure by the height of the ceilings - we get 37.5 m 3. We take 180 W for the power of one section, then 37.5 × 41/180 = 8.54. Round up and get 9 sections.

When the apartment is located on the first or last floor, in corner apartment, in a room with big windows or in a house with a wall thickness of no more than 25 centimeters, it is necessary to add 10% to the resulting parameter.

Let's summarize. For implementation right choice You need to pay attention to all these characteristics:

• Design. For a city apartment, a monolithic, fully bimetallic battery is suitable, which can withstand pressures of up to 15 atmospheres or more (usually, a pressure of around 12 atmospheres is used in apartments, while in a private house it is recommended to set the pressure to just one atmosphere). Cheaper models are suitable for autonomous heating systems, since they do not have high pressure.
• The size. If the distance between the floor and the window sill is at least 80 centimeters, you should choose the highest model. Otherwise, you will have to take a smaller radiator, so that it is at least 12 cm to the floor, and at least 10 cm to the window sill.
• Capacity. One of the main properties is rather narrow passages. If possible, provide good quality water supplied to the heating system.
• Section calculation. Before buying, read the description of the model to clarify the power capacity. It is better to calculate the number of sections using the second (detailed) formula, where the required amount of heat is determined based on the volume of the room. Do not forget to add 10% in case of significant heat loss due to external factors.

Main technical characteristics of models aluminum radiators heating - information that it is desirable to know before choosing and buying them. Along with the appearance (design) of the heater and its cost, the technical data allow you to compare different models with each other and choose the option that is optimal in terms of the main parameters.

Distinguish quantitative and qualitative characteristics aluminum radiators. Quantitative allow you to compare heating devices in terms of their weight and size parameters and power heat flow. In turn, the quality characteristics take into account the design features and manufacturing technology.

Quantitative characteristics

Quantitative characteristics must be confirmed in the course of tests, the results of which serve as the basis for obtaining a certificate of conformity. The list of confirmed characteristics, as well as methods and test conditions are specified in normative documentation- Russian (GOST) and European (EN 442-2) standards, or specially issued and approved technical specifications (TU).

Number of sections

The vast majority of models of aluminum radiators consists of separate sections. The division into sections allows you to choose the device of the required power, depending on the area of ​​\u200b\u200bthe heated room.

The buyer can purchase both individual sections of the radiator, and a ready-made factory-assembled heater. As a rule, factory-assembled radiators include from 4 to 12 sections. When assembling sections between themselves, a nipple connection is used.

The number of sections required for space heating is determined by the approximate formula:

where S is the area of ​​the room, m2;

P- thermal power one section, W.

The Italian company Global produces twin models of the GL / D series, having 2 rows located symmetrically relative to the plane rear wall sections. Dual radiators are used if they need to be installed at a distance from the wall.

Heat output (nominal heat flux)

This parameter (measured in W) allows you to determine how many sections a radiator should have to heat a certain area.

According to GOST 31311-2005 “Heating appliances. General technical conditions”, thermal power is determined under the following conditions:

• temperature difference (difference between the temperatures of the coolant and the air in the room) ΔТ= 70°С;
• atmospheric pressure B = 760 mm Hg;
• the coolant moves through the heating device "from top to bottom".

Some manufacturers additionally indicate the heat output measured at a temperature difference of 30°C and 50°C.

External heating surface area

This value includes the area of ​​all surfaces of the radiator section that are in contact with the air in the room, including the area of ​​the fins. The outer surface area is usually:

1. for sections with a center distance of 350 mm - 0.3 ... 0.4 m2;
2. for sections with a center distance of 500 mm - 0.4 ... 0.5 m2.

Geometric characteristics

Overall and mounting (connection) dimensions determine the possibility of installing a heating radiator under specific conditions of placement. Also, the dimensions of the heater affect its thermal output.

Dimensions.

center distance

The center distance is the distance between the axes of the upper and lower collectors. Among the mass-produced radiators, models with center distances of 200, 300, 350, 500, 600, 800 mm predominate. The center distance of 500 mm is the most common, and radiators of this size are present in model range all manufacturers. Global produces models of the Oscar series with center distances from 900 to 2000 mm.

Mounting dimensions.

Section width

The vast majority of aluminum radiator models have a section width of 80 mm. Less commonly, sections are produced with a width of 70 mm, 100 mm and other values.

Depth

This value determines the installation distance from the axis of the collector to the adjacent wall of the room. The most common products are 80 mm deep, but to increase the thermal power, manufacturers in some models increase the radiator depth to 100 mm.

Section internal volume

One of the parameters that determine the power of the heater. The internal volume of the section (measured in liters) depends on the height of the radiator, as well as the shape and cross-sectional area of ​​the vertical channel. To increase the internal volume, some manufacturers produce models with an oval channel section (Royal Thermo radiators).

Vertical channel of oval section.

Section weight

The weight of the section includes the weight of the paintwork, as well as the average weight of the gaskets and nipples. Sometimes in the passport for the product indicate the specific value of the mass (material consumption), which is measured in kg / kW.

Pressure

Most aluminum radiators are designed for an operating pressure of 16 atm (1.6 MPa). Some models assume operation in systems with a working pressure of 20 and 25 atm (for example, Rovall manufactured by the Sira Group).

The test (pressure) pressure, at which the radiator should not collapse, should be 1.5 times higher than the working one. Manufacturers also indicate the maximum (destructive) pressure, which is usually 40-60 atm, but not less than 2 times higher than the working one.

Heat carrier temperature

Heating devices of this type are designed for a coolant temperature of 110 ° C. Some models (for example, Rifar Alum series) allow operation at 135°C.

Tables 1 and 2 show the specifications for models with 350 and 500 mm center distance. The comparative tables show the weight and size parameters, the volume of the coolant and the nominal heat flow of the production section of 7 different companies.

Table 1 - Technical characteristics of aluminum radiators (center distance 350 mm)

Manufacturer and model	Overall dimensions, mm			Section volume, l	Section weight, kg	Thermal power, W
	height	width	depth
Rifar Alum 350	415	80	90	0,19	1,20	139
Royal Thermo Indigo 350	435	80	100	0,29	1,30	155
Konner LUX 80/350	430	80	80	0,28	1,05	145
Ferroli POL 350	431,5	80	98	0,31	1,10	155
General Hydraulic Lietax B 350-80	420	80	80	0,22	0,80	135
Global VOX R 350	440	80	95	0,35	1,12	145
Varmega Almega 350/80	426	80	80	0,30	1,10	147

Table 2 - Technical characteristics of aluminum radiators (center distance 500 mm)

Manufacturer and model	Overall dimensions, mm			Section volume, l	Section weight, kg	Thermal power, W
	height	width	depth
Rifar Alum 500	565	80	90	0,27	1,45	183
Royal Thermo Indigo 500	585	80	100	0,37	1,65	205
Konner LUX 80/500	582	80	80	0,43	1,25	190
Ferroli POL 500	581,5	80	98	0,38	1,40	180
General Hydraulic Lietax B 500-80	582	80	80	0,36	1,03	180
Global VOX R 500	590	80	95	0,46	1,45	195
Varmega Almega 500/80	576	80	80	0,38	1,20	191

Models with a center distance of 200 mm are the smallest in height among aluminum sectional radiators. Products of this standard size are used for installation under window openings with an increased glazing area. Comparative characteristics of devices of this size are shown in Table 3 and include data on products from three manufacturers.

Table 3 - Technical characteristics of aluminum radiators (center distance 200 mm)

Manufacturer and model	Overall dimensions, mm			Section volume, l	Section weight, kg	Thermal power, W
	height	width	depth
Varmega Almega 200/80	275	80	80	0,20	0,64	101
Sira Heatline 200	245	80	80	0,16	0,56	89
Konner LUX 80/200	275	80	80	0,26	0,62	123

Qualitative characteristics

Before purchasing a heater, you should also study the quality characteristics various models, showing design features and manufacturing technology.

Heat carriers

The technical passport for the product must indicate with which coolants it is allowed to operate. The permissible range of values ​​of the hydrogen index (pH) of the coolant can also be specified. If an aluminum radiator is supposed to work with non-freezing liquids (antifreezes), special intersectional gaskets are used in its design.

Connection methods

The standard section of the aluminum radiator has a top and bottom manifold that allows one of the known side connection methods. Some Models heating appliances equipped with a manifold with a lower connecting pipe, which allows for a convenient lower connection when installing a collector heating system.

Manufacturing method

Sections can be made by injection molding or extrusion. Extrusion is a pressure treatment method that results in a preform of increased density. Radiators made by this method have higher strength, which allows them to withstand increased pressure.

Aluminum sectional radiators have proven themselves in individual systems ah heating, when the homeowner has the opportunity to independently choose the type of coolant and control its quality. Such devices are characterized by high thermal performance, outperforming bimetallic models due to their lower cost. The technical characteristics of aluminum heating radiators give the buyer the opportunity to choose the best model among a number of analogues.

Dimensions radiators define coolant quantity that they are able to accommodate.

This is due to the power of the heating batteries.

Standard sizes of radiators

AT GOST 26645-85 tolerances are described with nominal intervals.

The radiator has three linear dimensions, responsible for the volume of the section.

Width: thin or thick

This is the distance between the outer walls of the battery. Pretty variable.

The depth is usually 75-140 mm depending on material and manufacturer.

In rare cases, larger items are found.

Length

Visually - length. This is the gap from the left to the right side wall. The indicator is taken equal to 80 mm when creating an order 95% appliances. In other cases, a little more, maximum - 88 mm. Any other radiators are made to order. This does not apply to cast iron devices: they are wider.

Minimum Height

The most variable value, which is the vertical component of the section.

Usually it is 380-420 or 540-580 mm.

There are special types of batteries, the length of which is in the interval two to three meters.

Similar devices are placed in bathrooms.

Important! Axial distance is often mentioned. This is the gap between the connection points of the supply and return pipes. Standard sizes - 350 and 500 mm. But there are also other options, especially among aluminum products.

How to choose the right size of radiator sections

Determining the dimensions of sections and their number - most important step in the creation of a classical heating system.

With standard position

The power that they are able to develop depends on the size of the batteries and the material.

The length is almost always the same and is 80 mm. First determine the height. To do this, choose the installation location, on which the available space depends.

And design also plays a big role. These parameters determine the vertical component. Usually decided between 350 and 500 millimeters.

Depending on the characteristics of the room, you can purchase devices from 200 mm. If a radiator is purchased for a bathroom or a bathroom, a narrow model is recommended that can completely close the space between the floor and the ceiling. Altitude devices have different variations from one and a half to three meters.

Having defined two linear characteristics and material, move on to calculating the depth and number of sections. The number of the latter is usually taken equal to 10 , but there are others. The thickness is found from the volume. The cubic value is divided by the length and height. The definition of power is also closely related to these indicators: knowing the required one, you can find the number of sections.

With original interior

To create a design, manufacturers often donate technical specifications.

Primarily This applies to cast iron products. Domestic radiators look serious, while they are simply covered paint.

European ones are sleeker, but weaker in heating. In any case, you need to find out from the documentation about the power that they are able to develop, since you need to choose devices for heat transfer.

Reference! There are batteries in the style of "retro". They have a pleasant appearance but expensive.

Aluminum have the same shape, except for custom-made, but differ in a variety of colors. In addition, a wide range of dimensions helps to fit them into almost any part of the room.

Bimetallic radiators, unlike analogues, are not only straight, but also curved. Because of this, they look good in rooms with smooth corners.

Regardless of the material chosen, before buying, you should read the technical documentation and find out the dimensions internal parts sections containing the coolant.

This will help determine the batteries, not only by external signs, but also by the ability to heat.

Should be mindful of combinations. So, if a certain device fits the design, but its power is not enough, you can install additional heating by hiding it behind the side panel. Or combine radiator heating with warm floors.

good option for guest rooms will become fireplace installation. Although the latter more often plays a decorative role, it is also able to reduce the number or size of sections installed in the room. Sometimes it's better to sacrifice beauty than to freeze every winter.

If there was a desire create a special design, contact the battery manufacturer. They will help you do the calculations. Thereby ready product will look beautiful and perform its direct function.

You will also be interested in:

What sizes are

Radiators are available in the following sizes.

Cast iron

According to the specification standard dimensions:

• Width - 93 or 108 mm.
• Depth from 85 to 140 in steps of 5.
• Height - 588.

Sections made to order can be of almost any size.

Knowing the length, the dimensions of the assembled device are determined, since a paronite gasket is placed between the parts in 1 cm thick.

If installation is carried out at a point with a lack of space, add the size of the flush valve.

Important! The axle spacing is usually 500 mm. Small batteries with magnitude 350 are rare.

Each section is capable of issuing from 160 W if the average daily temperature of the air and the coolant differs 70 degrees. Cast iron withstands working pressure up to 9 atm.

Aluminum

different models have similar internal dimensions. Width is t 80 or 88 mm. Depth ranges from 10-90 mm. Height is 50 or 35 cm. Bathroom models reach three meters long.

Photo 1. Aluminum radiator model Indigo 500/100 with side connection, section power 196 W, manufacturer - Royal-Thermo, Russia.

Designing heating systems is not an easy task. There are many nuances to consider: even choosing the size of a radiator requires certain knowledge.

What should be the dimensions of the radiators

The choice of dimensions of heating devices is not based on aesthetic considerations. Heat dissipation plays a key role here. This is especially true if a model is selected for installation under a window. It is necessary to choose a model in such a way as to meet several requirements at once:

Only under such conditions will the heat transfer of the heater you have chosen be normal: it will produce the number of watts declared by the manufacturer.

Terminology

Often in descriptions and specifications there is the concept of "center distance". Sometimes there is the term "inter-pin" and "center-to-center" or connecting dimensions. These are different names for the same quantity. It is defined as the distance between the centers of the inlets of a section or radiator.

This parameter is important if the supply pipes are in good condition and there is no need to change them. In this case, in order not to digest the eyeliner, you can choose a model with the same center distance as the old radiators.

The overall dimensions of the section itself or the radiator are described by the following parameters:

• mounting height;
• depth;
• width.

If the radiator has a sectional structure, then the depth and width refer to the dimensions of the section. Moreover, the depth of the radiator will be the same, and the width of the battery depends on the required number of sections (you need to add about 1 cm more to the gaskets that fit for tight connections).

The names of radiators often contain numbers: RAP-350, Magica 400, Rococo 790 or RAP-500. The numbers are the center distance indicated in millimeters. This makes it easier for both the buyer and the seller to navigate. The fact is that with the same center distance, the mounting height can differ significantly. Therefore, the specification put the most accurate value.

Example specifications. This is a Revolution Bimetall model.

The radiator parameters that may need to be taken into account include the volume of water in the section. For apartments connected to centralized heating, this characteristic does not affect anything, but for individual systems it can be important: when it is necessary to calculate the volume of the system (to determine the performance of the boiler or the characteristics of the pump).

And perhaps the most important parameter is thermal power. It is worth noting that the highest power is not always necessary. Increasingly, in apartments and houses with good thermal insulation, heating devices of medium power are required, and not huge ones.

When selecting the heat output of one section, it must be remembered that the radiator under the window must cover at least 75% of the width of the window opening. Then it will be warm in the room, there will be no cold zones and the glass will not “sweat”. Therefore, it is better to take 10 less powerful sections than 6 pieces with a large heat output.

The standard window width is 1100-1200 mm. Accordingly, 75% is 825-900 mm. This is how long or longer your battery should be. Looking ahead a little, let's say that the average width of one section is 80 mm, which means you will need 10-12 sections.

standard height

Speaking of the standard height, they mean the center distance of 500 mm. It was these connecting dimensions that the well-known cast-iron "accordion" of the Soviet era had. And since they have a long service life, these batteries are still in heating networks. Only now they are being replaced with new ones. Moreover, they often do not want to redo the system, so they are looking for heaters of the same size. What's good: they are in almost any group.

Cast iron

Today, not only “accordion” is made of cast iron, although it exists and is a success. There are also retro-style radiators with a center distance of 500 mm, made in a modern style:

Aluminum

Steel panel radiators are standard in heights up to 900 mm. But there are also special models that can reach two meters or more. For example, Kermi has two models Verteo Plan and Verteo Profil - they can be up to 2.2 m maximum. Kos V, Faros V, Tinos V, Narbonne V and VT, Paros V also have giants. They differ in the type of front panel (smooth or profiled) and depth. But all of them have only a bottom connection.

Steel tubular radiators are available up to 3000 mm high. Moreover, if necessary, some manufacturers can do higher. There are high models from any manufacturer: everyone who is present on the market offers such non-standard options. Here we list only the most interesting from the point of view of design: Entreetherm, Planterm at Arbonia, Dekor series at Kermi, Harmony at the Russian KZTO,.

In other types tall radiators no. Choice and so, I must say, considerable. Wouldn't get lost.

All heaters, the center distance of which is less than 400 mm, can be considered low. And there are many different models available.

In the cast iron group, the minimum center distance for the BOLTON 220 model with an installation height of 330 m is slightly higher than the Hellas 270 from Viadrus: it has an installation height of 340 mm. All the rest are taller ones with a center distance of 300-350 mm or so.

Among aluminum radiators, the firm has the smallest mounting height of 245 mm, and the center one is 200 mm. These are Alux and Rovall models with a depth of 80 mm and 100 mm. Similar dimensions have models from another well-known manufacturer (Global) - the Gl-200 / 80 / D model, and the Russian one - these are the Base 200 and Forza 200.

aluminum batteries bigger size(with an interaxle of 300 mm or more) is available from all manufacturers. There is a wide choice here.

The same Rifar and Sira have bimetallic ones: the height is 245 mm and 264 mm, respectively. But most of all models with connecting dimensions of 350 mm. Any manufacturer has them. Such a distance, in fact, can also be attributed to the standard - everyone has it.

Even more choice in the group of steel radiators. The smallest panel is produced by Purmo - Purmo Planora and Ramo Compact - their center distance is 150 mm, and their height is 200 mm.

For all other manufacturers, the height starts from 300 mm. Moreover, the length can be up to 3 meters (the step of its change is 100 mm).

Radiators in the floor - the lowest possible

Tubular radiators are also very small: from 150 mm Delta Laserline dimensions (manufacturer Purmo). For Arbonia, the height of all models of tubular radiators starts from 180 mm, for Zehnder from 190 mm (Charleston model), for the Russian KZTO from 300 mm.

There are low radiators. They are produced mainly in small dimensions - their power is large, and the price is also rather big. The lowest models are as follows: Ukrainian "Thermia" - a height of 200 m, Polish Regulus-sistem - all models with a height of 215 mm; Russian "Isoterm" - from 215 mm; Chinese Mars (sectional type) with a height of 385 mm.

And the lowest can be considered. They do not protrude above the floor level at all, but are placed for heating solid glazing, or are built into window sills. panoramic windows. They are of different power and purpose, they can be used as additional or main heating.

flat radiators

In some cases, it is not the height that matters, but the depth of the radiators: flat batteries are needed. There is not much choice here.

Shallow depth. Their models RAP 500 and RAP 300 have a depth of 52 mm, while the thermal power is decent - 161 W and 105 W.

Tubular steel radiators have a shallow depth: two-pipe ones are made from 50 mm thick, three-pipe ones from 100 mm to 110 mm, all the rest are already more solid - from 135 mm and more.

Neither bimetal, nor, especially cast iron, is flat. But there is a very good and perfect flat type heating - With such a system, heating devices are located along the floor along the perimeter. Their dimensions are about 30 mm deep and 100-120 mm high.

Results

A variety of heaters allows you to choose an option for any conditions: there are not only standard sizes, but also low, high, flat. For every taste and color.