NozzlePRO 2025: Advanced Nozzle & Structural FEA Software for Pressure Vessels
NozzlePRO 2025 is Paulin Research Group’s (PRG) industry-leading finite element analysis (FEA) software for evaluating local stresses in pressure vessels and piping components. The latest version adds full ASME 2025 code support, CSA B51:24 Annex J validation reporting, and expanded modeling for flat head attachments and nonlinear analysis .
The 2025 release line includes builds 2025.4 (April 2025) and 2025.9 (October 2025), with the latter as the most comprehensive update for year-end compliance . All updates require an active maintenance agreement and are immediately available to licensed users .
Key New Features in 2025.9.0.3066 (October 2025)
The October 2025 build represents the major year-end release, incorporating final 2025 code requirements and new validation tools:
| Feature Category | Description |
|---|---|
| ASME B16.5/B16.47 2025 | Hub height limits updated per latest code revisions for flange analysis |
| CSA B51:24 Annex J | New FEA validation report for NozzlePRO, PVPTPro, and BoxPRO; structured documentation for CSA compliance |
| ASME VIII-2 Part 5 Fatigue | Smooth bar fatigue allowable stress and cycles recalibrated to 2025 criteria |
| Flexible Shell Element (FSE) | Flanged and Flued functionality updated to 2025 ASME VIII-2 revisions |
| Saddle Contact Angle Fix | Reported saddle contact angle no longer defaults to 0 when performing Zick analysis |
Key New Features in 2025.4.0.2787 (April 2025)
The April 2025 build introduced foundational enhancements that set the stage for the year-end release:
| Feature Category | Description |
|---|---|
| Nonlinear Ratcheting Analysis | Shell element ratcheting analysis per ASME VIII-2 now available in NozzlePRO, PVPTPro, FEPipe, FEBend, BoxPRO, and FETee |
| Structures on Flat Head | Support for modeling structural attachments on flat heads; enhanced nozzle orientation import from COMPRESS via VesselLink/Konnect |
| Meshing Optimization | Improved accuracy for large offset nozzles on heads; optimized performance for models with 10+ nozzles |
