As one of the most important components of this aspect of the underfloor heating system, many people look up a lot of information and do their homework repeatedly for it.BODEN has been engaged in the underfloor heating industry for nearly half a century, and has full experience in the application of manifolds. Today's article is prepared for warm friends who are looking for a satisfactory floor heating system.

Let's talk about manifolds together.

According to the literature, the earliest origin of floor heating is in Turkey, 1300 BC, Turkish palaces have underground heating of the building structure. And in the East, people also found the remains of underground heating in the Qin Wang Palace. That era, human experience and communication can reach do not know, but people must be afraid of cold. All found that the ground heating, turned out to be the most comfortable and pleasant way of heating.

In ancient times, underground heating fireways had central combustion chambers and branching tunnels. Nowadays, the floor heating buildings, there are manifolds.

The material of the manifold is currently three common: stainless steel, brass, high temperature polymer plastic.

Previously BODEN introduced the advantages and disadvantages of these three materials, today to sort out, brass manifold how to choose? Brass because of its long history, has stood the test of time, more than stainless steel to explore the capital, polymer plastic is not widely used now, the good and bad is still to be estimated, so there will be an opportunity to do rational proof of it.

In fact, brass manifold from the manufacturing process, can be divided into three kinds:

Red punch process of manifold

Red punching is a process in which the metal is heated, extruded, cooled and then recast. The red punch process can eliminate the impurity level of the original metal embryo material and equalize the metal structure. The crystal structure inside the part presents a linear composition, so that the part is more outstanding in terms of resistance and densification. And has better corrosion resistance. And improve the safety of water.

Casting process of the manifold

Casting is the raw material is melted to let it in the molding die natural molding. That is, the metal material is melted into a liquid state, and then let it solidify into a solid state of the manifold. This method of production is low cost and easy to process, so it is relatively inexpensive. But the disadvantage is that its internal structure is not compact enough, often have air holes, cracks, the crystal is coarse and not fine enough, pressure resistance and impact resistance are weak.

Profile composition process of the manifold

Profile refers to the raw material itself, this kind of manifold utilizes the original profile directly turning, or pulling into shape. In the raw material directly through, branch pipe part of the corresponding size, the number of raw materials, cutting and then fused into one. Because it does not contain secondary processing, the raw material requirements are relatively high. Raw material good profile manifold, in the pressure and temperature resistance and impact resistance have excellent performance, because the structure is very dense, high strength, accident rate is low. Oxidation resistance is also good.

Now the manifold, from the function, and can be divided into three categories: basic, standard, and unique functionality.

The basic type is by the manifold trunk and branch circuit and manual adjustment valve, exhaust valve composition. Standard type and then on this basis, can also be added automatic adjustment valve, exhaust valve, and intelligent control system. Unique functionality of the manifold, now can be integrated into the flow meter function, automatic mixing function, wireless remote function and so on. It can be said that the unique function type is the standard type of special customization to meet the individual user's products.

Selection of manifold, to identify its quality from the following aspects. The most serious case of quality problems of the manifold is that the interface leaks, and then the whole blow up.

Material

This previously shared with you, pure copper material is now the most popular, stainless steel manifold also has a part of the market share. It has the advantages of corrosion resistance and oxidation resistance.

Thickness rating

The thicker the manifold, the better, the more durable. Because the floor heating system has water pressure, the thickness of the manifold is more resistant to pressure, impact resistance. Of course, the price is relatively higher.

Craftsmanship

Good manifold, the outside of the exquisite fine, size alignment and other aspects of the implementation of strict standards. Both beautiful and practical. If a product looks like a mess, then the practical application must also be poor.

Weight

Compliance with the material with a fixed density. There is no forgery of raw materials, the manifold must reach the appropriate weight. Many unscrupulous merchants add weight to the manifold bracket, as the manifold itself tonnage, to deceive consumers. So separate weighing.

Main pipe thickness

According to the home heating needs, determine the thickness of the main manifold. The thicker the main pipe, the greater the water flow, the faster the bad cycle, the easier it is to warm up the room. The thickness of the main pipe of domestic manifold is generally DN25, DN32.

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