Fluids & Co and PASS Team are pleased to announce the release of PASS/Start-Prof version 4.88, delivering major updates for smart piping stress analysis and extended support for modern design standards and workflows.
This release significantly expands code coverage, improves material databases, enhances element modeling capabilities, and strengthens interoperability with CAD and third-party systems — helping engineers work more confidently and efficiently across a wider range of projects.
Key highlights of version 4.88 include:
Expanded and Updated Codes & Standards
- Added ASME B31E-2008 with B31Ea-2010 addenda
- Added ASME NM.1-2022 for thermoplastic piping systems
- Added ASME NM.2-2020 for glass-fiber-reinforced thermosetting resin piping
- Added ASME NM.3.3-2020 nonmetallic materials to the material database
- Added GB/T 34275-2024 for gas and oil pipelines
- Updated ASME B31.1-2024 Power Piping
- Updated ASME B31.3-2024 Process Piping
- Updated ASME B31.8-2025 Gas Transmission and Distribution Piping Systems
- Updated EN 13480-2024 Metallic Industrial Piping
- Updated ASME B31J-2023 stress intensification and flexibility factors
- Updated ASME B31G-2023 for remaining strength assessment of corroded pipelines
Material databases for ASME B31.1, B31.3, B31.4, and GB/T 34275-2024 have been revised with updated allowable stresses, elastic moduli, and Poisson’s ratios.
Modeling & Analysis Enhancements
- Added EN 13941 soil model
- New project setting for coordinate system selection (Z-axis up or Y-axis up), plus north direction indicator in graphics
Start Elements
Support temperature calculation for column skirts, supports, trunnions, and connected components
New ASME B31 flexibility check to determine whether stress analysis is required
New custom restraints:
- Single-directional spring
- Double-acting bilinear
- Single-directional bilinear restraints
Reporting, Interoperability & Productivity
- Added PASS/NOZZLE-FEM nozzle stress calculation links to Word reports
- Added complete Bill of Materials export to Excel
- Improved CAESAR II import, including correct handling of node numbers above 31,999
- All pipe and fitting databases updated across supported standards
- Added IFC export and import
- StressISO 3D: added support for BricsCAD
- Extended CAD compatibility:
- AutoCAD 2020–2026
- BricsCAD 2023–2026
For a detailed list of changes, please refer to the Knowledge Base.
We recommend all users with active Maintenance Support to download the latest software release 4.88 R1.
To know more contact us.