PASS/HYDROSYSTEM 4.3 is released

We are pleased to announce that PASS/HYDROSYSTEM 4.3 is released! The new version contains new features and significant enhancements:

  • Analysis of pipelines with different wall roughness has been added. The new option is important for pipeline reconstruction;
  • A new piping component ‘reservoir’ has been added to simplify modeling storage tanks and other equipment with liquid column;
  • The option of customizing the list of pipe diameters for diameters selection has been added;
  • The ability to more accurately enter properties and calculate the parameters of solid particles on “slurry” flow analysis added. Now you can model the size distribution of particles;
  • Starting from version 4.3, you can import data from the AVEVA E3D software through open format files. The plug-in is now supplied with PASS/HYDROSYSTEM;
  • Various graphic improvements have been added, including displaying lengths of piping components and their names on a piping diagram and others;
  • The ability to set and calculate gauge pressures along with absolute pressure added.

We recommend all customers with active Maintenance Support to download PASS/Hydrosystem 4.3. To update your dongle, please send a request to

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Alex Matveev

Alex Matveev is one of the authors of pipe stress analysis codes GOST 32388-2013 Process Piping, and GOST 55596-2013 District Heating Networks. He is also one of the developers of PASS/Start-Prof software, which is developed since 1965 and used in 95% of process, power, district heating, gas and oil transportation design companies in Russia and CIS countries; it is industry standard in that region. He is the head of the PASS/START-PROF pipe stress analysis software development team. Also, He offers technical support and training for users of their software that number already 3000+, developing since 1965, industry standard in several countries for 50+ years, translated into English in 2017, come out from their domestic market, and started sales for the international market since 2018.

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