Selector – Free software for calculations and selection of flange joints

Program KRAJ SELEKTOR is a useful tool for design and calculation of flange-bolt circular connections. The program allows you to use databases of standard flanges according to EN PN and ASME standards, as well as for the analysis of your own designed structures.

Free program for calculation of bolted and flanged connections

The user can use data contained in extensive databases or enter data not included in the databases. The system allows data and results to be saved in PDF format to a selected medium or directory.

Program highlights:

  • gasket selection support system
  • procedures to optimize tightening torque
  • database of gaskets, flanges, buttresses and mechanical sizes of materials

Computing standards: WUDT-UC-WO/19 i /20 , ASME Code s. VIII , EN 1591-1:2013

Technical support:
Janusz Kapuściński | tel. kom.: 721 540 840 | e-mail:

User registration in the KRAJ SELEKTOR support system allows you to download the current version of the program and obtain technical support.

Read more at: Principles of personal data processing for the program.