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Caring for water and people’s health

Elements for safe water, with no waste

 

Water is a vital element and an asset that should be protected. 
In times like these, marked by rapidly evolving climate and social changes, ensuring everyone has access to drinking water has become an increasingly challenging and urgent mission. It is therefore of paramount importance that safe drinking water is guaranteed, always checked and protected from potential contamination, utilising all the instruments and devices that modern system solutions place at our disposal.

Encompassing perfect temperature management, circuit balancing and water sanitisation, our comprehensive range designed to care for water and people alike protects human health and reduces waste of this most precious resource.

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Solutions for controlling domestic water temperature and pressure

Pressure and temperature control

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Solutions for sanitising and disinfecting water

Electronic mixing valve with thermal disinfection

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Solutions for protecting the water mains

Backflow prevention devices

VODA: razpršene tlačne izgube
Caleffi Solutions

Our range of products designed to care for water and people’s health

Solutions for controlling domestic water temperature and pressure

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Controlling temperature and pressure

A fluctuating water temperature at a draw-off point can be extremely annoying. This means that domestic water distribution networks must be designed properly to ensure that, through correct regulation of the pressure inside domestic water systems, a stable response to hot and cold water requests is provided, while water and energy waste is reduced.

The combined unit for pressure control

Compact, flexible and easy to install, the combined unit for pressure control in domestic water systems is the ideal solution for all applications requiring precise temperature and pressure control. 
 

The unit combines three different devices in a single component:

  • a ball shut-off valve
  • a pressure reducing valve with strainer
  • an anti-pollution check valve, EA type

Installed on the pipe supplying hot or cold water to the users, the combined unit for pressure control reduces the pressure of the water coming from the network, prevents the backflow of water into the water mains and allows branch isolation during testing and maintenance procedures.

Read the monographic guide on pressure reducing valves
 

Solutions for sanitising and disinfecting water

Legiomix
Preventing Legionella through regular water disinfection

Legionella bacteria is a silent threat to health which can hide not only in domestic plumbing systems, but also in natural environments such as lakes and fountains.

The key elements in preventing Legionella within a domestic water system are:

  • Careful domestic water network design with particular emphasis on the proper insulation/positioning of pipes and the selection of materials that are suitable for the distribution network
  • Targeted thermal disinfection with devices selected to guarantee temperatures that are high enough to prevent the proliferation of the bacteria
  • Constant movement of the water through the recirculation network to prevent stagnation
  • Correct balancing of the recirculation system to reduce water waste and guarantee the correct temperatures at every point of the circuit

 

Electronic mixing valves with thermal disinfection

Legionella bacteria proliferates and becomes dangerous in the temperature interval between 25 °C and 45 °C, while it is effectively neutralised at temperatures above 50 °C.

The electronic mixing valve with thermal disinfection protects domestic hot water distribution systems from Legionella through a special regulator which manages specific programs for thermal disinfection of the DHW circuit. Plus, it keeps track of the actual temperatures reached and thermal disinfection times, making it possible to carry out targeted corrective procedures whenever necessary. All the parameters can be tracked as they are updated every day and logged, with temperatures recorded every hour.

Solutions for protecting the water mains

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Installing backflow prevention devices for mains water quality

Domestic water distribution networks should maintain the potability throughout the entire system.

In fact, users must be guaranteed safe water which is always checked and protected from all types of contamination, utilising all the instruments and devices that modern system solutions place at our disposal. Backflow prevention devices, developed in the 1960s are still the most effective devices used to achieve this goal today.
 

Backflow prevention devices

The backflow preventer is an essential solution in the protection of water mains. Each device is designed to prevent potentially contaminated water from returning to the mains network, a phenomenon which may occur due to pressure variations in the distribution system causing a reversal in flow direction.


Installed between the public main water system and the private network in water distribution systems, the backflow preventer creates a separation zone which prevents the water contained in the two systems from coming into contact.
 

Caleffi Solutions designed to care for water and people’s health