Steel heating radiators have better

Radiators are not at present any deficit - in specialized stores can find similar products to suit every taste and "wallet".These heat transfer devices of the heating system may be made of different materials and have quite different characteristics.Some of them are perfect for auxiliary heating, others are adapted for all operating conditions.

Of course, many owners are concerned about the cost of housing.To the category of the most affordable include steel radiators which is the best of them to choose and will be discussed in this publication.

main types of radiators

on sale represented a lot of different types of radiators, and it is therefore appropriate, for informational purposes, severalwords about the main varieties:

• Cast-iron batteries.This type of heat exchangers may have a different appearance - improved, with smooth inner and outer surfaces with a retro or modern design, as well as batteries with familiar to all forms and characteristics of MS-140.Despite the fact that there were many new products from other materials, cast iron radiators do not lose their popularity, as are renowned for their reliability and durability, and high heat dissipation.
• Aluminium radiators have a modern exterior design.They are lightweight, easy to install and economical to use the coolant, and hence in their consumption of energy for heating.The thin walls of these cells are heated quickly and give off heat in the room.Any of these devices and their characteristics, so they can be said that they are more suitable as for use in autonomous heating systems where there is no sudden temperature changes, and even small water hammer pressure surges in the circuit.Bimetallic
• radiators made of two kinds of metal - a steel and aluminum.Designers in developing the most of the positive qualities of these materials, so the internal channels made of steel alloy, which is resistant to the baric loads, and aluminum - this is an excellent conductor of heat.The combination of these materials gives good results, so bimetallic radiators demand the owners like apartments in high-rise buildings and private homes.But fully disclose their potential bimetallic radiators is at high heating rates, which is more characteristic of central heating systems.
• Finally, steel radiators.Detailed information about the characteristics and types of heating devices will be discussed below.

Selection Criteria

radiators To properly determine which battery is better to choose for a particular installation site, you should consider some important factors:

• For the maximum pressure and temperature conditions in the central heating system in a particular village.From this data will depend on which options should have radiators.
• resistance design of the radiator and to the quality of the material and temperature of the coolant.
• necessary thermal capacity for a particular room - it is necessary to know in order to accurately calculate the number of radiators and dimensional parameters.Calculations can be performed on the area or volume of space.Convenient and accurate method of calculation will be offered to the reader at the end of this publication.
• Professionally Decorated radiators too, is an important criterion, since these heaters can support the selected design style, or, conversely, to spoil the look of the room.

main varieties of steel radiators

Steel radiators may have different designs and shapes, different in its design, including the even and the color scheme.As a fundamental device are divided into panels and tubular.The first of them consists of one or several panels, from the second round, rectangular or made in the form of narrow panels of tubes.

To determine the optimal choice of such heating devices, you need to read their structures and characteristics in detail.

panel radiators

These heat exchangers in our country have been actively performed in 70-ies of the last century.They have for some time tried to replace traditional radiators MS-140 made of cast iron, which have been the only effective instrument for central heating high-rise buildings.Then the panel batteries are not accustomed, as for heat transfer, and the quality of his performance and durability of cast iron variant essentially lost.Those owners of apartments, which "lucky" to get a steel heating panels, by all means tried to how to replace them as soon as possible to the usual cast iron.

It took many years until the engineers are not "reanimated" previously developed design and perfected it.An updated version of the panel made of batteries has become more high-quality materials and the latest technology.

Current models of these heating devices is becoming more popular as their performance is significantly increased, and the price remains quite "democratic".

Production panel radiators

Production panel radiators is carried out on special machines, where a steel sheet is formed into the desired shape by means of stamping.This process involves several steps:

• first punching step is performed steel sheet thickness is usually about 1.25 mm thick.

• Further, two equally sized "mirror" on the configuration of the preform are connected together at the edges by welding

When stamping metal sheets, they are squeezed vertical channelswhen welding two plates form a sealed space in the form of original pipes through which coolant will circulate.To connect sheets used roller welding, which securely holds the sheets between the formed channels.

• of steel sheet thickness 0,3 ÷ 0,5 mm and are made by stamping convectors with edges in U-shape.
• Thereafter, the finished panels are fixed by spot welding heaters, if any data type radiator.
• next step on the resulting panels are welded tubes for the tie-in of the heating circuit pipes.
• After welding all the seams are ground.
• final stage of painting produced products.

From quality color heaters depends the duration of their operation, so the process can be called one of the most important in their manufacture.

steel subject to corrosion, especially when it is a long time in contact with water or other chemically aggressive coolant, so high-quality paint, carried out by a special technology is required.

panels Painting

process of painting the panels produced in different ways, and on which of them has been applied largely depends on the quality of products:

• dipping in a coloring composition (OP).
• method using anodic electrophoresis (AEF).
• third method is staining cathode electrophoresis (EFC).Incidentally, it is also used for the application of paint on the car body, and is rightly considered the most advanced coating of steel radiators.

This coating technology is highly reliable and resistant to various influences.The coloring process is carried out in three stages:

- first phase - treatment of steel radiator zinc-manganese anti-corrosive composition, which significantly increases the service life of batteries.

- The second stage - the color of the radiator means of cathodic electrophoresis.Products are immersed in the coloring composition of which is given a positive charge, while the panel is connected to the negative electrode.The process ends at the time when the paint uniformly cover all surfaces of the panel.This layer of paint is a reliable sealant for steel from various aggressions.

- The third stage - the paint is applied to the epoxy powder and products are sent to the camera to high temperatures for melting of the protective layer.After heating and melting the powder on the panel is formed a high-quality glossy coating of the desired color - is not exposed to ultraviolet rays, and non-yellowing and does not fade over time.

When painting metal products undergo periodic heat, do not apply formulations comprising substances such as heavy metals and formaldehyde.In the ink used in the method of coloration (EFC), contained only 2% of the solvent, while, as the application of the AEF - 10.9%.

Because of the ink includes a small amount of solvent, battery, heating even to extremely high temperatures, will not allocate harmful substances.

All ready radiators necessarily tested under pressure of 1.3 MPa, and if the products are successful, then the manufacturer can safely give a guarantee on their operation for up to 10 ÷ 15 years.

purchasing steel panel battery, you need to carefully examine the passport attached to them with the characteristics which must be specified method of coloring.

addition, recommended a very good look at the radiator cover.It should be of high quality on the front and, and on the back surface, no cracks, chips and scratches, without sagging paint.

considered substandard coating if the front and back surfaces differ in color or texture of smoothness.From these articles it is better to refuse.

existing heating types of steel panel radiators

panel radiators are divided into several types, which tend to be divided by the number of panels and convector heat exchanger design.Thus, the radiator may have one, two or three panels, and set one, two or three convector therebetween.

If the radiator will be more than one panel, on its sides are usually mounted the wall, and the top grating is installed.

The table below shows some of the parameters of the standard types of panel radiators.

Appearance	brief description of the design	Dimensions radiators
		Height mm	Length mm	Widthmm
	10 type panel radiator consists of a heating panel without convector fins.The device has no side walls and an air discharge grid. figures characterizing heater, means: "1" - a series of panels;"0" - the lack of convectors. Despite the fact that a number of panels is only one, and there is no additional heat exchanger elements, this type has its own great advantage, which in other cases is considered a minus - is the absence of the convector.If not convector, then there is no directional movement of heated air masses, which contain large amounts of dust. Due to this, 10 of the radiator type can be set not only in living rooms, but also in children or hospitals. During one panel, which has no complex configurations, the upper grille and the side walls are much easier to care for.Suffice it to wipe the surface with a damp, clean cloth.	305 ÷ 905 405 ÷	3005	63
	11 type consists of a single panel and a number of convector fins welded on the rear side. In this embodiment, no upper grille and the side walls. Convection occurs through a series of ribs, but it promotes circulation, along with dust air masses.Therefore, having these radiators, they have cleaned more carefully, as the dust settles on the walls of the convector.	305 ÷ 905 405 ÷	3005	63
	20 type . This type of radiator consists of two panels without convectors. Top is air grille, and on each side wall fixed.Heat transfer from this type radiator twice higher than that of one pane.Cleaning this model is quite simple because of the lack of convector fins.	305 ÷ 905 405 ÷	3005	66
	21 type . This design incorporates two panels and one convector mounted between and welded to the outer panel.Above all complex covered bars, and the sides walls.	305 ÷ 905 405 ÷	3005	102
	22 type. This type of radiator is made up of two panels, two convectors, side panels and top grille.In this case fins welded to both panels.	305 ÷ 905 405 ÷	3005	102
	30 type. This design integrates the three panels interconnected at a certain distance, the side walls and the upper grille.	305 ÷ 905 405 ÷	3005	102
	33 type has the greatest depth is up to 170 mm, and consists of three panels and three rows of convector fins established between them. ribs are welded to the inner surfaces of the panels.Radiator has side walls and an upper grating.	305 ÷ 905	405 ÷ 3005	157

Now - about the essential technical and performance characteristics of the product:

• panel radiators are designed for a maximum temperature of the coolant to 95 ÷ 100 degrees, so at standard temperature in the systemheating to 70 degrees, they will last a long time.
• operating pressure for these batteries must not exceed 10 bar (1.0 MPa).