The Italian regulatory landscape on this topic has undergone a significant transformation in 2025: Legislative Decree 102/2025, which came into force on July 19, 2025, made mandatory certain Guidelines drawn up by the Ministry of Health in May 2015. The new obligations for prevention and control established in the Legionella Decree 2025 include:

• Mandatory monitoring activities. Activities are now classified according to a Priority code. Water monitoring is now mandatory in facilities beyond the previous regulations, such as hotels, sports centers, and restaurants.
• Preparation of the Water Safety Plan (PSA). The Water Safety Plan (PSA) is a mandatory risk assessment and management model for managers of internal building water systems.
• Appointment of the Internal Water Distribution Manager (GIDI). For Priority facilities, the role of the Internal Water Distribution Manager (GIDI) has been introduced. The GIDI is responsible for the building’s internal drinking water system and must be appointed. He or she is responsible for verifying that analyses and the PSA are performed.

Finally, penalties have also been increased, with fines of up to 30.000 euro for failure in compliance with monitoring parameters.

L'articolo New monitoring requirements for Legionella prevention proviene da Tempco Blog.

The evaporative towers built by Tempco are in modular package type, and were supplied in a special version, with collection tanks designed to be installed at high altitude with gravity drains to collect the cooled water in the existing reinforced concrete tanks, with the aim to contain the costs of civil works and reduce the commissioning times of the new plant.

The supply of the cooling towers was complete with control panels, equipped with inverters for the energy management of the fans, allowing a significant energy saving thanks to a smart and effective use of power.

L'articolo Modular package evaporative towers in pharmaceutical production proviene da Tempco Blog.

This development therefore allows the use of air-cooled condensers, the classic dry-coolers, adopting a solution that also offers the advantage of eliminating the water consumption involved with evaporative towers and ensuring a much simpler overall maintenance of the plant. In fact, there is no longer the risk of legionella implications due a poor water management or scaling due to the presence of carbonates.

The cooling solutions for the production of expanded polystyrene developed by Tempco therefore use special heat exchangers equipped with stainless steel tubes, a material chosen with the aim of increasing their durability and reliability over time.

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L'articolo Dry cooler in expanded polystyrene production cooling proviene da Tempco Blog.

A thermal machine that can be a dry cooler, or a refrigerating group, or a cooling tower. In this case, there are indeed four parameters required for the proper sizing of the machinery: the kind of fluid to be cooled and its flow rate; the inlet temperature, which is the temperature of the fluid as it comes from the process; the outlet temperature, which is the temperature of the fluid required when it goes back to the process; the design ambient air temperature.

Ambient air temperature that in case of a chiller is related to the condensation process, in case of a dry cooler is the temperature of the air that will cool the fluid. And finally, in case of an evaporative tower is the wet-bulb temperature, a key value for the evaporation process.

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The line is intended to cool the furnaces that provide the thermal treatment of the discs of carbon ceramic brakes. The Tempco solution ensures the cooling of the furnaces, because in case of an improper, or even absent cooling process, the whole brakes batch could go wasted. But also the furnaces themselves could be damaged, with obviously an even greater loss.

The treatment achieved within the furnaces is therefore a critical step in this kind of application, as well as the accuracy and reliability of the cooling system. In order to ensure always the maximum reliability, the cooling plant has been equipped with redundant security systems, using tower water that feeds a heat exchanger and pumps providing the circulation of the water within the furnaces. With water in a closed circuit among the tower, the exchanger and the furnaces. In case of power failure, an emergency generator starts automatically with a valves circuit automatically opening, allowing mains water to flow within the plant decreasing the temperature of the furnaces, saving both the machinery and the production.

Finally, the customer is already planning a further expansion of the system with the addition of a fourth cooling line for the furnaces.

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L'articolo Third line of carbon ceramic brakes furnaces cooling proviene da Tempco Blog.

The References section includes a complete series of success cases deployed by Tempco over the years for the Food and beverage industry, the Automotive sector, chemical and oil & gas, applications for renewable energy, pharmaceutical production, rubber and plastics industry, paper, metallurgy, power generation, research and engineering and the textile industry.

A very wide and complete amount of applications is featured in the section, classified by industrial sector of destination and employing the whole range of thermal energy management equipments and machinery offered by Tempco: plate heat exchangers, shell and tube exchangers and dimple jacket exchangers, thermoregulating units and chillers, evaporative towers, free cooling and energy recovery solutions, high efficiency cooling and heating equipments.

Each applications is completed with a description of the kind of industrial process involved and its requirements in terms of temperature regulation, the solution that was designed and the machines and equipments employed in the making of the plant. An overview sheet, that can be downloaded in PDF format, offers then a summery of the characteristics of each application, providing a complete view of the several solutions for thermal energy management in all industrial sectors in which Tempo operates.

We therefore gladly invite you to discover the wide range of industrial thermoregulation and temperature regulation applications developed by Tempco, always being updated, and enjoy the navigation!

Tempco References of thermal energy management and temperature regulation in industrial production

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The basic concept of all these applications remains anyway the same, being it to maintain these systems at a certain temperature to prepare the product inside them thanks to a series of increasing or descending ramps of temperatures, with controlled cycles of heating and cooling.

Reactors are usually jacketed, and a fluid can flow inside the jackets, hot or cold, in order to heat or cool the product on the inside. A simple primary solution is to let different fluids flow within the jacket, for example steam and cold water, to achieve the temperature regulation. But during the switch between the fluids, the jacket must be completely emptied, avoiding potential contaminations of the fluids, and the new fluid must be pumped to completely flow inside the reactor, involving additional technical times.

The best solution is therefore to employ mono fluid thermoregulation, using a unique fluid that continuously flows inside the jacket that step by step gets thermoregulated at the right temperature required to heat or cool the product, by means of heat exchangers and switching valves. Based on a set-point configured by the production of the customer on a PLC, which is connected with the thermogulating unit, valves on the steam exchanger are opened in order to achieve heating, or otherwise commanding the valves on the cold water to cool the fluid that keeps on circulating.

There are clearly several and diverse systems, for example thermoregulating units with electrical heating section and cooling with water, or multiple stage thermoregulating units, steam heating or cooling with tower water or icy cold water, if very low temperatures must be reached. In fact, these are extremely customized thermoregulating units, even considering the fact they often operate in safe or Atex environments, or they are intended for installation within the United States, requiring UL certification, or in the Russian market, needing to be compliant with EAC regulations.

But after all the working principle remains the same, a unique fluid that keeps on circulating on the reactor side, getting heated or cooled by utility fluids that are fed into the thermoregulation unit. The advantages of mono fluid thermoregulation is therefore to have a constant circulation of the fluid, no contamination of working thermal fluids, and finally the possibility to achieve a wide thermoregulation range. With a very precise regulation of temperature and a fine control of the set-points, with strict tolerances, thanks to the use of PID systems, switching valves and highly accurate regulation systems.

L'articolo High precision thermoregulation in mono fluid mode proviene da Tempco Blog.

Overall, the cooling plants is composed by:

• Cooling tower
• Water pumping system
• Brazed plate heat exchangers, especially re-sized in order to work with tower water
• Immersion TCOIL dimple-jacket exchangers, directly immersed inside the cooling tanks

After more than 10 years of operations, the customer needs to increase the production capacity of the plant. The intervention involved to double the cooling tower and the related water distribution system, due to the fact that the foundry will install new additional induction furnaces and also because the cooling system will have to serve also a new part of the plant aiming for the cooling of die casting machines.

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L'articolo Immersion cooling and towers in die casting foundry proviene da Tempco Blog.

The wind chill, or cooling effect caused by the wind, refers to that sensation of chilling coming out from a swim in the sea in the presence of wind. This sudden and intense sensation of cold is caused by the evaporation of water over our body, and this is due to the effect of evaporation of water on our skin that absorbs calories, energy.

This is exactly the same effect that happens in adiabatic coolers and evaporative towers, that allows to cool water at a temperature level lower than the temperature of ambient air. In fact, speaking about evaporative towers with customers, we always ask them the value of design wet bulb temperature, which is essential aimed to design and calculate the cooling tower.

Watching US’ standard ASHRAE tables, or also other climatic tables, there are always average dry bulb temperatures indicated referred to different geographical areas, both during the winter and summer season. These tables contain as well a column with the respective average values of wet bulb temperature.

Making it simple, wet bulb temperature is the temperature that is obtained wrapping the sensor, or bulb, of a common outdoor thermometer with a slightly humid rag. Suddenly it will be possible to see the temperature’s level going down, and this is the wet bulb temperature, that is the temperature of the bulb humidified, which is lower than ambient external air temperature. This is as well the reference temperature employed for the design of cooling towers, because that’s the lowest temperature that can be achieved, obtaining water coming out of the tower at a lower temperature. It happens taking advantage of the latent heat of vaporization, which is the energy that gets dissipated by water to evaporate, generating a decrease of the temperature of the water that gets cooled.

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L'articolo Wind chill and evaporative towers proviene da Tempco Blog.

In this context, the trend towards a more smart energy consumption in cooling plants leads to a growing employ of EC motors. This kind of motors have in particular to ensure the correct definition of the power absorbed at various rotation speed levels possible, as well as the evaluation of potential energy savings that can be achieved. The engineering of EC motors therefore requires accurate tests during the design step, in addition to the check of their effective performances: at this purpose, special test benches with a high sophistication level are employed. These test benches require at their turn an extremely accurate control of temperature and flow rate during the cooling/thermoregulation task, in order to guarantee the precision of the test process of EC motors.

The temperature range required in this kind of test benches is between 0° C and +90° C, involving two circuits. The first one is easier to realize, aimed to brakes cooling, while the second one is quite more sophisticated, aimed to the direct cooling/thermoregulation of motors, that undergo strict tests and thermal stresses.

The test bench for EC motors is then served by an air condensed chiller. The chiller provides refrigerated water for a thermoregulating unit, serving the plant water at the required temperature for each of the different steps of the testing. A series of equipments then provide water at the correct flow rate and temperature level as needed by the various components being tested. Finally, the overall system is equipped with instruments with an interface for remote control and monitoring of the plant.

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