New Release 4.83R4 of Piping Stress Analysis Software PASS/START-PROF

START-PROF version 4.83 R4 released! See full Version History


  • Code updated: ASME B31.8-2018
  • Code updated: ASME B31.3-2018
  • Added ASME B36.10M-2015 and B36.19M-2004 standards into pipe database
  • Added Thermal Bowing effect modelling
  • Removed the limitation of static seismic analysis only for above ground piping. Now mixed above ground and buried piping can also be analyzed for seismic effects
  • Fixed problems with UNDO function
  • Added setting “zero projections for the new pipe”
  • Improved tee model. Now when you specify wall thickness of the branch pipe greater than connected pipe, it is modeled with a thicker pipe. The branch pipe stiffness become greater
  • Fixed some minor bugs

The Start-Prof users with valid warranty may download the new version from downloads page. To upgrade the current version the dongle updating is not needed. Contact us via or your regional dealer

Free 30-day demo can be automatically downloaded from website

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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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