Domestic Water Sizer

Domestic Water Sizer

Fast and correct sizing of the main components of domestic water systems

domestic water sizer Caleffi
Fast and correct sizing
  • Size fastly and correclty the main components of domestic water systems
  • Save the design report in PDF format, showing the inserted data, the calculated data and technical documentation with example schematics in attachment
  • Use the app in several languages, without any kind of subscription required

What can you do with Domestic Water Sizer?

Domestic Water Sizer allows you to quickly size the following components:

Pressure reducing valves

By inserting the functional parameters (upstream pressure, downstream setting pressure, working temperature) and the design flow rate (which can be calculated by a specific tool according to different user types), thanks to the automatic calculation of the medium velocity the codes of Caleffi components, optimal for the application, are proposed.

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Mixing valves

As for the pressure reducing valves, the flow rate, if unknown, can be calculated by means of the specific tool. After choosing the mixing valve type among thermostatic, electronic and for solar thermal systems, codes of Caleffi components are proposed according to the optimal head loss calculation in order to guarantee correct water mixing and temperature adjustment.

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Domestic water storage

In case of domestic hot water production with storage, the app makes it possible to size the water storage volume according to the most common user categories. The calculated volume can be taken into consideration for the expansion vessel selection with the dedicated sizer.

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Expansion vessel

The expansion vessel can be calculated by inserting the functional parameters (inlet pressure at the water storage, setting pressure of the safety relief valve, temperature of the water storage). Solutions are proposed with single or double expansion vessel.

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SIZING OF HYDRAULIC AND DOMESTIC WATER SYSTEMS: Mixing valves and pressure reducing valves

Try Domestic Water Sizer



"Great for a quick pre-sizing, very convenient, thank you."

"Practical and functional"

"Useful but for some functions it is not possible to download the pdf but... with note and pen you can solve it"