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Valsir delivers a series of packages that meet all the possible system requirements inside civil and industrial buildings and for the elimination of snow and ice from outdoor areas.
The use of a heat transfer fluid at low temperatures and the particular stratification of the heat in the room results in significant energy savings both in the heating and cooling mode.
The components of the Valsir radiant systems are made to high quality standards and in respect for the product and design standards of radiant systems.
Floor heating today is without doubt the most technically valid heating solution for the residential, commercial and industrial sector.
The various system solutions available allow maximum flexibility and adaptability to all types of buildings and construction requirements.
Greater energy saving as compared with traditional systems.
Uniform distribution of room temperatures.
Less heat loss as compared with a traditional heating system.
No limits of an architectural nature. Great reliability and flexibility to all types of building and construction requirements.
Elevated heating surface.
No irritated throats thanks to the optimum hygienic conditions.
Elimination of mildew on walls and deterioration of wooden floors or window frames.
The so-called “thermal well-being”, that is, the sensation of comfort, which is created within a room, is present when the temperature takes on a particular distribution in relation to the height of the room. Such a temperature distribution is defined as the ideal curve of thermal well-being.
Floor heating systems do not favour the formation of damp areas on the floor and therefore, conditions are not generated that would favour the formation of dust mites or bacteria or of mildew on the walls.
There are no architectural limits linked to the presence of radiators/fan heaters, hence there is total freedom in furnishing a room. Wall mildew is eliminated as is deterioration of wooden floors and window frames.
The thermal gradient that is generated with floor heating systems is such that heat loss is less than in a traditional heating system.
Unlike traditional systems, floor heating offers the possibility of recovering heat that is usually wasted due to the stratification effect of the air, which reaches higher temperatures near the ceiling; the higher the ceiling the greater the heat recovery.
A modern system with reduced environmental impact as compared with traditional heating systems.
Radiant panel systems allow an average energy saving of 25% depending on the climatic conditions of the surroundings.
This important energy saving can be attributed to the fact that the large surface area of the floor is heated with a low temperature heating fluid.
| V-ESSE SYSTEMS |
V-ERRE SYSTEMS |
V-ENNE SYSTEMS |
V-ELLE SYSTEMS |
V-ZETA SYSTEMS |
V-RAIL SYSTEMS |
|
| Resistance | Class 150 | Class 200 - 150 | Class 200 | Class 200 - 250 | Class 200 | - |
| Surface type | Pre-formed | Pre-formed | Smooth | Smooth | Pre-formed | - |
| Minimum pipe spacing (mm) | 75 | 50 | 50 | 50 | 75 | 50 |
| Insulation thickness(mm) | 20 - 30 | 10 - 20 - 30 | 30 | - | 20 | - |
The heating and cooling system designed specifically for residential buildings and offices where the laying height is at least 90 mm.
The heating and cooling system designed specifically for residential buildings and offices where the laying height is at least 72 mm.
For industrial situations where an elevated load resistance is requested due to heavy vehicles or industrial machines.
The ideal system employed for the creation of floor heating systems in industrial buildings without renouncing the ease of installation of the Valsir multilayer pipe on socketed panels.
This solution has been designed specifically for industrial environments in which the pipe is anchored to the surface by means of the special V-RAIL fixing bars made of a plastic material and equipped with biadhesive.
Pexal® is composed of multilayer pipes and different types of fittings that are chosen according to the installation technique adopted. There are various applications: from the distribution of hot and cold drinking water to centralised water supply systems, from radiator and fan heating systems to radiant floor, wall and ceiling heating and cooling systems, from compressed air systems to industrial plants.
Mixal® is composed of multilayer pipes and different types of fittings that make it suitable for all plumbing and heating systems. Thanks to its extreme flexibility it is the ideal product for the construction of radiant floor, wall and ceiling heating and cooling systems and due to its excellent performance it is used for the distribution of hot and cold drinking water, in radiator and fan heating systems and in industrial systems including systems for the distribution of compressed air.
The comfort and technology of our radiant systems installed in great buildings all over the world.
The so-called “thermal well-being”, that is, the sensation of comfort, which is created within a room, is present when the temperature takes on a particular distribution in relation to the height of the room. Such a temperature distribution is defined as the ideal curve of thermal well-being.
To create “thermal well-being” there must be slightly warmer areas near the floor and slightly cooler areas near the ceiling.
A temperature distribution curve can be traced for all heating systems.
With floor heating, the particular positioning of the radiant panels and the heat transfer by radiation generates a temperature stratification, which is the closest to the ideal curve.
Floor heating systems do not favour the formation of damp areas on the floor and therefore, conditions are not generated that would favour the formation of dust mites or bacteria or of mildew on the walls.
Moreover, floor heating operates at low temperatures and does not alter the relative humidity of the air, maintaining the best conditions for personal health.
There are no architectural limits linked to the presence of radiators/fan heaters, hence there is total freedom in furnishing a room. Wall mildew is eliminated as is deterioration of wooden floors and window frames.
Underfloor heating systems allow the owner to make use of all available space; it is also valuable in the case of buildings of architectural and artistic importance where it is fundamental that the surroundings do not undergo change.
The presence of the aluminium layer, its thickness and position, result in excellent heat conductivity characteristics.
With Pexal® and Mixal® pipes it is possible to carry out floor heating systems with higher heat outputs.
In fact the greater conductance generates higher temperatures on the pipe surface as compared with all-plastic pipes (PE-X and PERT) and this advantage is reflected, for example in the possibility of obtaining relatively low supply temperatures.
The greater performance of Pexal® and Mixal® pipes compared with all-plastic pipes means greater system output at equal flow conditions. An example: the 16x2 Mixal® pipe has the same thermal output as the 17x2 PE-X pipe.
The mechanical characteristics of the Pexal® and Mixal® pipes make them ideal for use in floor heating systems. The bending radius corresponds to 2.5 times the pipe diameter and the circular section at the bend remains constant.
The pipe, once bent, remains in the desired position like a metal pipe; hence the use of anchor clips is not required as with all-plastic pipes.
The inner layer in aluminium acts as a perfect barrier against the passage of gaseous molecules thus avoiding the danger of corrosion due to oxygen infiltration and damage caused by exposure to UV rays
The table shows a comparison of the oxygen transmission coefficients (Oxygen Transmission Rate) of aluminium, of EVOH (the material used as an oxygen barrier in all-plastic pipes) and of crosslinked polyethylene (PE-X).
Many PEX pipes sold today are manufactured with the oxygen barrier on the outside of the pipe.
This layer is hence notably exposed, not only to superficial damages, but also to the negative effect of humidity, which drastically increases the porosity of the pipe.
| Material | Oxygen transmission coefficient OTR at 25°C and 0% |
| Aluminium | 0 |
| barrier EVOH | 0,21 |
| PE-X | 12.000 |
The thermal gradient that is generated with floor heating systems is such that heat loss is less than in a traditional heating system.
Unlike traditional systems, floor heating offers the possibility of recovering heat that is usually wasted due to the stratification effect of the air, which reaches higher temperatures near the ceiling; the higher the ceiling the greater the heat recovery.
With a floor heating system the condition of wellbeing achieved at an average room temperature, which is generally 1°C below the temperature achieved with traditional systems and therefore, at equal comfort, energy saving is possible.
Furthermore, the use of insulating panels to hold the pipe, significantly reduces heat loss and contributes to the increase of system output; traditional heating systems do not require such panels, from a design point of view, and therefore they are never used.
A modern system with reduced environmental impact as compared with traditional heating systems.
Radiant panel systems allow an average energy saving of 25% depending on the climatic conditions of the surroundings.
This important energy saving can be attributed to the fact that the large surface area of the floor is heated with a low temperature heating fluid.
It is therefore convenient to use heat sources whose performance increases as the temperature required decreases, such as heat pumps, condensation boilers, solar panels, heat recovery systems, zone heating systems.
| V-ESSE SYSTEM |
V-ERRE SYSTEM |
V-ENNE SYSTEM |
V-ELLE SYSTEM |
V-ZETA SYSTEM |
V-RAIL SYSTEM |
|
| Resistance | Class 150 | Class 200 - 150 | Class 200 | Class 200 - 250 | Class 200 | - |
| Surface type | Pre-formed | Pre-formed | Smooth | Smooth | Pre-formed | - |
| Minimum pipe spacing (mm) | 75 | 50 | 50 | 50 | 75 | 50 |
| Insulation thickness (mm) | 20 - 30 | 10 - 20 - 30 | 30 | - | 20 | - |
The heating and cooling system designed specifically for residential buildings and offices where the laying height is at least 90 mm.
The heating and cooling system designed specifically for residential buildings and offices where the laying height is at least 72 mm.
For industrial situations where an elevated load resistance is requested due to heavy vehicles or industrial machines.
The ideal system employed for the creation of floor heating systems in industrial buildings without renouncing the ease of installation of the Valsir multilayer pipe on socketed panels.
This solution has been designed specifically for industrial environments in which the pipe is anchored to the surface by means of the special V-RAIL fixing bars made of a plastic material and equipped with biadhesive.
Valsir S.p.A.
Località Merlaro, 2
25078 Vestone (BS - Italy)
Tel. +39 0365 877 397
Fax +39 0365 81 268
valsir@valsir.it
