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Alfa Laval Pressosmart is a complete line of pressurisation sets designed to maintain stable pressure in a closed water loop.

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The  Pressosmart range automatically fills the installation when there is not enough water in the closed loop of the building and also protects against overflow. It contains pump(s), pressure relief valve(s) and Alfa Laval's multi-functional control box for accurate control. The units perform 3 main functions:

  1. Maintain of a constant and steady pressure
  2. Expansion
  3. Filling-up

Pressosmart is a split system which needs to be piped up to Alfa Laval's Open or Closed Expansion vessels:

Pressosmart with Open expansion vesselPressosmart with Closed expansion vessel


Pressosmart units are suitable for heating and air conditioning systems in collective buildings and several industrial applications.



Open Expansion vessel

  • Good value for money
  • Excellent corrosion resistance
  • Large choice of volumes (200 - 5000L)

Closed Expansion vessel

  • Water loop is not in contact with air
  • Good and safe performance with Pressosmart settings below 3 bar
  • Possibility to have several vessels in serie

This range can be configured and selected using the AlfaSelect selection tool. Please contact Alfa Laval for more information.

A selection table is available in the product leaflet.

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