About the benefits of the Radena brand
Skeptics often like to say that Raden's heating radiators are only "on paper" Italian. They are actually made in China. So what? Today, many popular brands have moved their production facilities to China. It is not the country of manufacture that is important, but the production process. Apparently, Radena is all right with this, as experts praise the brand for quality products.
For example, craftsmen from different parts of the country often say that in their locality, heating equipment from Radena is considered the most popular among customers. Excellent durability of products is noted. We will make a reservation, subject to proper use.
Radena bimetallic radiators are successfully used both in centralized and autonomous heating systems.
It is not uncommon for owners, due to ignorance of the basic principles of work, to block products with cranes on both sides. They think it's safer this way. You shouldn't do this! Sooner or later, the pressure will reach a critical level, which is to blame for the hydrogen gradually accumulating inside. After some period of time, the device, as they say, will explode.
It is believed that Radena products are one of the few that pass the so-called "5 rubles" test without any problems. Although the “term” exists among specialists, it is quite possible for an ordinary person to complete the test. It is necessary to put the radiator on a flat surface and try to put a coin of the denomination indicated in the name under it. There shouldn't be any passes.
Above we have already talked about some production aspects. One more should be mentioned. Radena radiators are almost the only ones on the domestic market that are painted in sections. Only after applying the protective composition, the different components are combined into a common structure. Unwind the product, it is uniform white everywhere.
Double coloring eliminates fading. Even gaskets are aimed at extending the service life. How? Seemingly minor parts are of the self-centering type. Thanks to this, the collector remains flat for a long time. "Walks" on the sides are excluded.
The absence of leakage is explained by the unwinding force, the value of which exceeds 50 N. m. If you make a vertical section of the radiator, you can really see a wide ellipse instead of a rhombus. Due to this feature, strength and heat transfer are ensured.
The listed advantages are more typical for aluminum, but bimetallic products also combine some of them. Plus, it is precisely a complete bimetal. No compromises, like, for example, Rifar. This fact alone speaks volumes. Where the main has been taken care of, the secondary will never be forgotten. Radena is responsible for the quality on all counts!
Do not consider our article advertising. On the contrary, we publish independent reviews so that readers can form an unbiased opinion about the various products sold on the market. But if some products have pronounced advantages, it is always appropriate to mention them, which we did. Approach the final choice only after a comprehensive study of most of the options offered.
Features of Raden technologies
First, let's talk about aluminum radiators. Their first and very important feature - the shape of the horizontal and vertical collectors - is a wide ellipse. This form creates the least resistance to the flow of the coolant, because it passes a lot, and the heat transfer from the sections is good. At the same time, the collector itself experiences less stress, which contributes to increased reliability and service life.
The second feature is the wall thickness of the vertical tubes: this manufacturer always has it more than 1.9 mm, which is comparable to the thickness of the pipes for supplying the coolant. And this is another plus for strength and reliability.
They guarantee warmth and comfort for many years.
Radena bimetallic radiators are no less reliable. It is full bimetal, with thick-walled steel collectors. Moreover, high-carbon steel is used, which is why the pH value can vary over a very wide range: pH from 6 to 10.5.
The third feature: two-stage painting. First, all sections are pre-processed. They are cleaned, then treated with degreasing compounds, preparing surfaces for painting. Further, each section is covered inside and outside with a layer of paint (anaphoresis technology). This is corrosion protection.
Please note that all surfaces are processed. inside too
Finding a second campaign that paints radiators inside will be very difficult. Then another layer is applied on the outside - epoxy powder paint. Spraying takes place in an electrostatic field, which ensures high durability of the coating.
All reviews are positive. It's just hard to believe
The coloring is very reliable, does not fade with time and does not change color, does not peel off, there is no marriage - this is according to the installers. The coloring is uniform on all sides. Sections can be disassembled and assembled, while the appearance does not suffer, chips and cracks do not form.
Further "little things" that add pluses in favor of radiators:
- Intersection gaskets - graphite, self-centering. Therefore, during assembly / disassembly, the radiator is always even. Never flows.
- The carving is deep and even, not filled with paint.
- The ends are always already cleaned. Taken out of the package and ready to assemble.
- The unwinding force is stable, above 50 Nm. Very reliable and high quality build.
- The radiators are packed in bubble wrap, the boxes are reinforced on the sides and corners, so damage during transportation is very rare.
All these nuances seem insignificant, but they speak of high quality. And all the "little things" give burst pressure for aluminum radiators - 52-55 atmospheres. The result is a stable clientele and no complaints.
Scheme of the movement of the coolant in bimetallic radiators with bottom connection
It looks a lot like a promotional article, but the quality is really high. The information above is not on the official website (partially there is about painting, and even then not all). Apparently, the subtleties are trying to protect from competitors. Data taken from reviews of installers (on third-party resources).
Radena
If you want to buy Radena radiators, you are making the right choice, which is economically justified. To date, radiators manufactured under the Radena brand by the Italian plant Galetti are recognized all over the world. High quality and Italian sophistication - Raden radiators will perfectly fit into any interior, will allow you to create a really warm and cozy atmosphere in any home.
Aluminum Radena radiators. This is a good option if you are looking for the best balance of performance and cost. Aluminum radiators have the highest heat output, so they provide heating efficiency. In addition, these radiators are beautiful, have a small weight. Those radiators that are supplied to the Russian market are adapted to our operating conditions, in particular, to the system pressure standard for Russia.
The only drawback of aluminum radiators is their electromechanical corrosion, which occurs when there are antagonist metal ions in the system, in particular copper. Copper is a "stronger" metal, so it will attract aluminum ions to itself - until the aluminum turns into a thin foil. Therefore, there is an opinion that aluminum radiators cannot be installed in a system where there is an electric boiler with a copper heating element.But if the heating wiring is made of polypropylene or polyethylene pipes, nothing bad will happen to the radiators, since in this case the aluminum-copper galvanic pair breaks. Also, the prevention of electromechanical corrosion is the use of through-hole plugs - nickel-plated, cadmium-plated, chrome-plated.
Aluminum radiators are sensitive to the quality of water in the system, so they should be installed in houses and apartments where it is possible to control the quality of water.
Bimetallic Raden radiators. Radena bimetall - universal radiators. They combine all the advantages of steel and aluminum radiators. As statistics show, Radena bimetall cs 500 radiators are the most popular. Parameters of one section (depth × width × height): 85 × 80 × 552 mm.
Radiators Radena bimetall cs 500, the price of which is quite affordable, especially when compared with the quality and characteristics of radiators, is really one of the most popular. These are universal radiators suitable for use in private houses, apartments, administrative and other buildings. School? Raden. Hospital? Raden. State institution? Also Raden. If you enter “Radena bimetall cs 500 reviews” into the search engine, you can only find positive reviews. Indeed, Raden's bimetallic radiators collect only positive reviews - it is impossible in a different way.
Raden bimetal - these are radiators consisting of a steel frame and an aluminum case. A steel frame is in contact with the coolant - tubes made of thin but strong steel. Therefore, Radena 500 radiators, for example, or Radena 350, or other Radena models are not afraid of contaminated water, withstand a sufficiently high pressure in the system, and are resistant to water hammer and other "surprises" from the heating system. Over the years of operation, Raden bimetal radiators have received only positive reviews, regardless of the room in which they were installed.
As for the aluminum case, it increases heat transfer. In addition, the special housing design improves convection by properly distributing warm air flows.
Thus, if you want to buy reliable, economical and efficient radiators, you need Raden radiators, the price of which is more than justified.
Radena company brief information
Under the trademark in question, a variety of sectional type radiators are produced. Product development is carried out in Italy, whose manufacturers follow European quality standards. The equipment sold directly on the domestic market takes into account the peculiarities of the local climate. Naturally, it has the necessary documents. Otherwise, no one would have allowed the goods to be sold in retail outlets.
An example of a Radena radiator in a home interior.
Since Radena covers many market segments, the company's radiators are considered universal models. If necessary, products can really heat administrative or residential buildings. Industrial facilities and public buildings are also included in the scope of product use.
When applying a protective coating to the surface of heating equipment, again, European requirements regarding environmental friendliness and safety are observed. The release of harmful substances into the environment is excluded as a fact. After manufacturing, the radiators are packed in a special film and immersed in boxes made of durable cardboard. Thanks to this, they are not damaged on the way to customers, which cannot be said about a number of other similar products.
The outer part of the package contains important information. It includes the radiator model, the scheme according to which it should be placed, and the main technical properties
Be sure to pay attention to the listed data so as not to make a mistake. Each unit of production has a technical passport
Radiator packaging and designations on it.
Bimetal batteries Radena
As already mentioned, Radena is a complete bimetal.What does it mean? That both vertical and horizontal collectors are made of steel. Why do they do it? The first reason is to exclude the contact of aluminum with the coolant, which is very far from the norm in centralized heating networks. Aluminum is known to be a reactive metal, and at high pH levels it corrodes quickly, leading to leaks. That is why manufacturers set requirements for hydrogen activity: so that there is a guarantee of long-term operation.
Brief data characterizing radiators made of and steel (bimetallic)
The second reason for using steel in radiators is to increase strength. Aluminum and its alloys are soft metals, and since pressure drops in central heating networks can be very considerable, not all aluminum batteries can tolerate them. Especially if, for economy, the walls of the collectors are made thin. And steel, even of small thickness, can withstand greater pressures than aluminum.
In radiators, steel collectors are interconnected by welding: a vertical tube is welded into the collector from the outside in a circle. But steel has a low coefficient of thermal conductivity, therefore aluminum is deposited on it, air ducts are created. The resulting bimetallic section has high strength, low reactivity and good heat output.
Technical characteristics of bimetallic batteries "Radena"
Some companies produce radiators in which only a vertical tube is made of steel. They have a higher heat transfer than a full bimetal, but the coolant is still in contact with the coolant. They can not be used in all networks, but the advantages of this option include their lower cost. Full bimetal due to the complex technological process is much more expensive.
Radena produces only full bimetal and uses only high carbon steel. Therefore, the working pressure is 25 atm, the medium temperature is 100 o C and the guarantee lines are 25 years. One ruler, three center distances: 150, 350 and 500 mm. The price for Radena CS 500 radiators, from trading companies, is about $14. And this is the price of full bimetal. In the specification, they are designated Radena CS 150, Radena CS 300, Radena CS - modifications with a side (standard) connection. There is a radiator with a bottom connection, for example, Radena VS 500. Their technical characteristics are shown in the table.
Aluminum heating equipment
Although many experts suggest that buyers purchase Raden, this is not a mandatory rule. Aluminum as a manufacturing material is quite good in terms of heat output and a number of other important characteristics. If the working environment allows, the application justifies itself. Some rules still need to be taken into account.
Aluminum radiators from Radena are used in systems based on hydronic heating. Buildings - administrative, residential, public. Suitable for low rise buildings.
Production process and cost
It's time to talk about more serious things. Let's start with a little background, which is that Raden's aluminum heating radiators are made from a number of sections. The latter are cast under high pressure. Then they are combined into a single whole. For this, steel nipples and gaskets of a special type are used.
Radiator aluminum Radena 500.
Coloring of production is made by epoxy polyester. Apply a couple of layers. If you are well versed in various technical subtleties, we add that two methods are used to create a protective coating. The first is cataphoresis. The second is electrostatic spraying. We are talking about enamel in the form of a powder. At the very end, the product is covered with a paint composition that belongs to class A.
You need to know the following - both the manufacture and painting of Radena aluminum radiators are done at an acceptable level. In total, there are two types of aluminum products to choose from - R350 and R500. The price of R350 is approximately $11.3 per section, R500 is $11.8.
Specifications
The basic properties of R350 and R500 do not differ much. We will consider the first option. If the R500 is something different, we will explain separately. Normal operation of radiators is guaranteed at a working pressure of the heat carrier of 16 atm. As for the test, it is 24 atm. The burst pressure is 50 atm.
The heat output of one section is very high - 165 watts. The R500 model has slightly more - 192 watts. In order for the heating equipment to serve for a long time, the temperature of the coolant should not exceed 110 degrees. Plus, more than 0.02 mg of oxygen is prohibited per liter of working fluid
Pay attention to pH. Valid value is from 6.5 to 9
https://youtube.com/watch?v=WKGFsqCO1uY
One section of the product holds 0.275 l (R500–0.330 l). Differs in some limit and weight. R350 - 1.05 kg, R500 - 1.35 kg. Section height 431 mm and 581 mm respectively for different models. Center distance - 350 mm and 500 mm (hence the indexes in the title). The remaining indicators are again the same. For example, the depth of the radiator section is 85 mm. Width - 80 mm. The inlets intended for connection are 1 inch in diameter. White colour.
We believe that the information provided is more than enough to superficially evaluate aluminum products. Let's move on to a more interesting option. We are talking about Radena bimetallic heating radiators, which are even more versatile.
Radena connection kit
Heat output of one section, W: 165 Capacity of one section, l: 0.275 Center distance, mm: 350 Section weight, kg: 1.05
Heat output of one section, W: 192 Capacity of one section, l: 0.330 Center distance, mm: 500 Section weight, kg: 1.35
Heat output of one section, W: 120 Capacity of one section, l: 0.11 Center distance, mm: 150 Overall height, mm: 241 Section weight, kg: 1.06
Heat output of one section, W: 135 Capacity of one section, l: 0.16 Center distance, mm: 350 Section weight, kg: 1.5
Heat output of one section, W: 185 Capacity of one section, l: 0.22 Center distance, mm: 500 Section weight, kg: 1.95
Bottom connection Heat dissipation of one section, W: 185 Capacity of one section, l: 0.22 Center distance, mm: 500 Section weight, kg: 1.95
