If you have not yet registered on the Valsir web site fill in the form with your details and obtain free access to the download area where you will be free to download our price lists and technical brochures. You will also have the possibility of receiving our periodic newsletter: the best way to remain up-to-date on all the latest developments in Valsir.

Forgotten your password?

Valsir S.p.a
Waste and water
supply systems, underfloor heating system
and flush cisterns

Excellent air quality for greater comfort in buildings and
a better quality of life

panoramica-gamma-vmc

Air quality determines the condition of a building, influences the health and the well-being of its occupants.

Today, energy efficiency regulations have resulted in increasingly insulated buildings, thus reducing energy expenditure but at the same time preventing the natural flow of air.

For this reason a controlled mechanical ventilation system is required to introduce fresh air into buildings in a constant and controlled manner, while monitoring and diluting indoor pollutants such as moisture, CO2, Radon, VOC, (volatile organic compounds) and formaldehyde.


Download the documentation


What controlled mechanical ventilation is

Building regulations on energy efficiency, applied primarily to new buildings, have caused modern buildings to provide low energy consumption.
In this way, properties have improved in terms of insulation, and energy requirements have been significantly reduced.

At the same time, however, buildings are consequently less ventilated and periodically opening a window is not enough because air renewal is not constant.

Air quality is a fundamental aspect in determining health in buildings, especially as today we spend longer time indoor: it is estimated that we spend between 75% and 90% of our time in closed environments.

The excessive reduction in oxygen and significant increase in components and gas such as Radon, carbon monoxide, ozone, formaldehyde, VOC can prove harmful to our health.

Controlled mechanical ventilation with heat recovery is a system that takes in fresh air from the outside, which, once filtered, guarantees the well-being and hygienic conditions of the building.

The ventilation units feature two fans, one to take out air and the other to bring in fresh air contemporarily. A cross flow, countercurrent heat exchanger recovers the energy contained in the outgoing air and transfers it to the incoming air guaranteeing an efficiency of over 90%. In this way the energy consumption of the building is reduced while at the same time the air in the house in purified by removing pollutants and moisture.


Advantages and benefits

Improved health and hygiene: constant renewal of air, monitoring of indoor pollutants, non-proliferation of mould and the reduction of pollutants from the outside.

Cost saving: reduction of energy consumption.

Improvement of comfort: air is always healthy with controlled temperature and moisture, without drafts and temperature changes. Moreover, stagnation of stale air and formation of mould in the rooms is avoided.

Preserved over time, thereby maintaining a higher value.

Sustainability: reduction of CO2 emissions and protection of the environment.

Energy efficiency class: higher energy certification.


gamma-vmc

The range

Ventilation unit with heat recovery

Valsir supplies various types of heat recovery units, with and without thermal integration, with various installation possibilities and air volumes.

Discover more on HRV Range

componenti-vmc

System components

For the installation of the HRV system in buildings, Valsir supplies a wide range of accessories and components:

Discover more on HRV System components

 


recuperatori-calore-altissima-efficenza

Highly efficient heat recovery units

The Valsir HRV Aria system provides a wide range of highly efficient dual flow heat recovery units for all types of installations.

The Aria range is composed of two models in different sizes that can be installed in the ceiling or on the wall and four models in different sizes that can be installed on the floor with higher air attachment for surface areas from 40 m² to 250 m² (suitable for apartments, villas and small commercial spaces).

Discover more...

recuperatori-calore-deumidificatore

Heat recovery units with dehumidifier

The HRV system with dehumidifier for radiant systems consists of a range composed of two models equipped with highly efficient dual flow heat recovery units for horizontal or vertical installations.

All the units are available in a version with internal cooling circuit (with cooling integration or isothermal dehumidification only) or with water coil and they are equipped with remote panel with multifunction control.

Discover more...

 

tubo-isolato-epe

Insulated round EPE pipe

Insulated pipe in polyethylene foam (EPE) available in diameters 125, 160 and 180 mm (thickness  16 mm/30 kg/m³).
Simple and rapid installation with a perfect seal, it is used to connect the fan unit to the outside to enable the flow of inbound and outbound air.
Ideal for controlled mechanical ventilation plants, thanks to the insulation that reduces heat loss avoiding the formation of condensation.

Discover more...

tubo-flex-vmc-nudo

HRV bare flex hose

Flexible duct available in diameters 127, 160, 180 and 203 mm, made from additive polyolefin resin film, antibacterial and anti-mould and spiral in spring steel wire.
Suitable for controlled mechanical ventilation and air conditioning systems.

Discover more...

tubo-flex-vmc-isolato

HRV insulated flex hose

Flexible duct available in diameters 127, 160, 180 and 203 mm, made from additive polyolefin resin film, antibacterial and anti-mould and spiral in spring steel wire.
Thermally insulating cover in polyester fibre (thickness 25 mm/16 kg/m3). Exterior protection in aluminate film (flame retardant). The robust thermo-bonded polyester fibre avoids dispersion of the microfibers during the passage of air thus remaining intact over time.
Suitable for controlled mechanical ventilation and air conditioning.
Reduction of condensation and heat loss.

Discover more...

tubo-flex-vmc-isolato-alufonico

HRV insulated Al Phon flex hose

Flexible duct available in diameters 127, 160, 180 and 203 mm, made with a wall in AL/PET/AL (aluminium/polyester/aluminium) that is micro perforated to reduce the noise of the air, and spiral in spring steel wire.  Thermally insulating cover in polyester fibre (thickness 25 mm/16 kg/m3).
The robust thermo-bonded polyester fibre avoids dispersion of the microfibers during the passage of air thus remaining intact over time. Exterior protection in aluminate polyolefin film (flame-retardant).
Ideal for controlled mechanical ventilation and air conditioning.
Reduction of condensation and heat loss.

Discover more...

ariatube-tubo-tondo-corrugato-vmc

Ariatube: HRV round corrugated pipe

Developed in collaboration with Sanitized, a Swiss company and world leader in the production of antimicrobial and antibacterial materials, guarantees maximum performance and service life of HRV plants.
Compliance to regulations has been certified by the German hygiene institute HY.

  • Available in diameters 63, 75 and 90 mm.
  • Prevents the onset of allergies and asthma.
  • Guarantees a reduction of over 99% of the bacteria commonly present on the internal surface of pipes.
  • Prevents the formation of bacteria and fungi.
  • Prevents the onset of bad odours thanks to the use of zinc pyrithione, biocidal active ingredient.

Discover more...

tubo-ovale-corrugato-vmc

HRV oval corrugated pipe

Corrugated semi-rigid oval pipe made of high density polyethylene, antibacterial and antistatic. Available in sizes 50x102 and 60x132 mm.
The radial system allows less pressure loss as compared with traditional systems and the mechanical connections ensure seal and a clean, homogenous and quality installation.

Discover more...


Grids and valves

When designing a HRV plant, aesthetic must also be taken into account. For this reason, Valsir supplies a complete range of grids and valves for indoors and outdoors, for inbound and outbound air.

Made of ABS, paintable PVC or inox steel and available in various sizes, they guarantee a perfect integration in all types of environments.

Griglie e valvole