Transparent preliminary model
All main influencing quantities are shown as inputs or intermediate results. Check factors, material data and boundary conditions against the complete standard.
Determine normalised flow of one component from sonic conductance C, critical back-pressure ratio b, subsonic index m and pressure ratio.
C, b and m come from the test report or catalogue of the actual valve. The result is a steady component characteristic, not a full network or dynamic simulation.
Enter C, b and m from the component's ISO 6358 test data.
All main influencing quantities are shown as inputs or intermediate results. Check factors, material data and boundary conditions against the complete standard.
The local standards provide terminology and series values. This tool deliberately identifies its simplified scope and does not claim conformity.
Use the result as a starting point for selection and plausibility; then verify manufacturer data, load spectra and safety requirements.