Sizing a centralized vacuum system requires analyzing airflow, vacuum pressure, and the characteristics of the collected material. The key steps are:

• Analysis of service points: Identify the stations to be served, the type of material (dust, chips, liquids), and how many will operate simultaneously.
• Airflow calculation: Add up the airflows needed for all active points, with a 10–20% safety margin.
• Pressure drop evaluation: Estimate the total vacuum pressure needed considering pipe length, bends, valves, and filters.
• Duct sizing: Choose diameters that maintain proper air velocity (15–35 m/s) to avoid clogs or excessive pressure losses.
• Selection of vacuum and filtration unit: Select a blower suitable for the airflow and vacuum level required, with appropriate filters (HEPA, cartridges, self-cleaning) and ATEX options if needed.

Proper sizing ensures system efficiency, safety, and durability.