Pressurization groups

Pressurisation units: efficiency and reliability in water management

Pressurisation units are essential to ensuring a constant and reliable water supply at the appropriate pressure in residential, commercial, and industrial buildings. These systems, primarily composed of pumps, regulation valves, and control systems, are designed to maintain stable water pressure regardless of fluctuations in demand.
As energy efficiency and sustainability become increasingly important, pressurisation units play a crucial role in ensuring continuous water service while reducing operating costs and environmental impact.

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How pressurisation units work

The operation of a pressurisation unit is relatively simple but highly effective. When water is distributed through a water supply network, it is necessary to maintain consistent pressure to meet end-user needs, such as faucets, showers, and fire protection systems. The pressurisation unit activates by increasing or maintaining water pressure using one or more pumps.
These systems can operate in automatic or manual mode, with pressure sensors continuously monitoring the network and activating the pumps only when pressure drops below a preset threshold. This prevents continuous pump operation, reducing energy consumption and extending the system's lifespan.
The most advanced pressurisation units also feature Variable Frequency Drive (VFD) technology, which adjusts pump speed based on actual demand, further optimizing energy efficiency.
 

Types of pressurisation units

There are different types of pressurisation units, each designed to meet specific operational and application needs. The main categories include:

  • Single-pump pressurisation units: these systems consist of a single pump that manages the entire pressure demand. They are ideal for small buildings or residential applications where water demand remains relatively stable. While they are more cost-effective and easier to install, they have a single point of failure, which can be a risk in case of mechanical issues.

  • Multi-pump pressurisation units: these systems feature two or more pumps operating in parallel to ensure continuous and reliable water supply. Multi-pump systems are commonly used in larger buildings, such as residential complexes, offices, and industrial facilities, where water demand can fluctuate significantly throughout the day. The presence of multiple pumps ensures greater redundancy, reducing the risk of service interruptions in the event of a pump failure.

  • VFD pressurisation units (variable frequency drive): these systems use variable frequency drive (VFD) technology to regulate pump speed based on real-time demand. This approach not only enhances energy efficiency but also reduces pump wear, increasing the system’s overall lifespan. VFD-equipped systems are particularly suitable for applications with highly variable water demand, such as hotels, hospitals, and shopping centers.

  • Fire protection pressurisation units: designed for maximum reliability in emergency situations, these systems feature high-power pumps and redundant control mechanisms. They are used to supply water at adequate pressure for fire suppression systems in public and industrial buildings. Fire protection pressurisation units are subject to strict regulations, requiring regular inspections and preventive maintenance to ensure the system is always ready for operation