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- Release announcement - click here
| Applies To | |
| Product(s): | AutoPIPE |
| Version(s): | ALL |
| Area: | Readme |
| Date Logged & Current Version |
Dec. 2025 25.00.01.213 |
| What is New & Changed in AutoPIPE® |
AutoPIPE 2025 is a yearly release which gets updated by occasional minor releases for security, critical fixes, and improvements. The details of the releases and timelines are provided below:
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- Piping Codes
- Added the 2024 edition of ASME B31.1 Power Piping. This edition does not introduce any changes from the 2022 edition that affect AutoPIPE design calculations.
- Added the 2024 edition of ASME B31.3 Process Piping. This edition of B31.3 now requires that B31J General Note D is applied. Occasional stress indices now follow the same rules as sustained stress, equation 23a.
- User Interface
- User-customizable settings such as ribbon commands, themes, and viewport colors can now be easily exported, imported, or reset.
- Added the AutoPIPE API Documentation command to the Landing Page (Help > Help > AutoPIPE API Documentation) and the Ribbon (Help > Help > AutoPIPE API Documentation), which can be used to access the documentation for the AutoPIPE API.
- Import/Export
- AutoPIPE can now import structural models from Revit using iTwin Services.
- PCF Import: Tap Connections can now be imported through PCF. Also, default stiffness values can now be defined for Flexible Joint import.
- Extended support for importing Caesar II v13 and v14 neutral files.
- Analysis
- The number of modes for modal analysis has been extended to 9,999 modes (previously 999 modes).
- Piping Codes
| AutoPIPE® Requirements |
More detailed installation information can be found in the AutoPIPE Quick Start Guide.
Product Version
| Product | AutoPIPE |
| Version | 25.00.01.213 |
| Language |
|
Included Applications Versions
| PCF Translator | 1.5.1.213 |
| PDS Translator | 6.0.0.31 |
| ADL Pipe Translator | 1.0.0.37 |
| ME101 Translator | 1.0.0.20 |
| iTwin Analytical Synchronizer | 23.01.15.015 |
| Bentley DGN Preview Handler | 10.17.02.013 |
| Bentley DGN Thumbnail Provider | 10.17.20.11 |
| Structural Property Catalog Server | 10.00.07.003 |
| iTwin Service Add in V2 | 25.00.02.01 |
| Connection Client | 25.00.02.19 |
| Microsoft SQL Server Compact 3.5 SP2 x64 ENU | 3.5.8080.0 |
Installation Requirements
Access to the Internet required for product installation. The minimum system configuration for installation:
| Operating System |
Microsoft Windows 10 x64 Professional or higher |
| .NET Framework |
4.8.1 |
When installing the product through the installer program, the required components will be installed automatically. The contents of the Desktop Prerequisite Pack include:
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- Microsoft® .NET Framework 4.8.1
- Microsoft® VC++ 2015-2022 Redistributable (x64)
- CONNECTION Client - 25.00.02.19
NOTE: AutoPIPE uses the following fonts on dialogs and in reports. These fonts are pre-installed with Microsoft Windows. If any of these font are missing, the text on dialogs and in reports may appear smaller/larger than usual. To install missing fonts, please repair or reinstall Microsoft Windows.
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- Arial
- Calibri
- Consolas
- Courier New
- Georgia
- Microsoft Sans Serif
- MS Sans Serif
- Segoe UI
- Times New Roman
Minimum Profile
The minimum recommended workstation profile for running AutoPIPE is:
| Memory | 8 GB recommended. |
| Hard Disk | 4 GB free disk space (not including Restore Point space requirements). |
| Video Graphics Card | Any industry-standard video card which supports OpenGL 3D graphics. |
| ProjectWise |
ProjectWise Server 10.00.03.299 with ProjectWise Explorer 10.00.03.453, Note: ProjectWise Server and ProjectWise Explorer are only required if Bentley's ProjectWise is used to manage project documents. |
| OpenPlant Isometrics Manager |
OpenPlant Isometrics Manager 2024 - 24.00.03.09 Note: Users can use OpenPlant Isometrics Manager (OPIM) to review Stress Isometrics created by AutoPIPE without an entitlement for OPIM, provided it is opened from within AutoPIPE. Direct use of OPIM without an entitlement will log usage and may lead to charges. Click here for more information. |
|
Word processing, |
Microsoft® Office 64-bit. |
| Download, Installation, and Licensing |
Refer to Knowledgebase article here for information on downloading, installing, and licensing AutoPIPE.
To complete the licensing process, you must have the appropriate roles assigned by your Site Administrator. If you have not been assigned these roles, you will need to contact your Site Administrator.
If you are experiencing problems logging into your Bentley account, please contact Bentley's Licensing department at 1-800-BENTLEY (1-800-236-8539). Outside the United States +1 610-458-5000.
Network Considerations - Network drives are only supported for data files. AutoPIPE software must be installed on a local client workstation. AutoPIPE data files must have full read/write access to be opened and edited.
| Documentation |
Program Help: Detailed feature information may be accessed directly from within AutoPIPE by selecting the Help command, or by pressing the Help button from any of the application dialogs. Be sure to explore the program Help for answers to your questions. A set of supplemental How To, Tutorial, and Reference Information documents in PDF format are provided in the Supplemental Documentation folder (Bentley AutoPIPE > Supplemental Documentation) of the main Program Help file (autopipe.chm).
Tutorials: AutoPIPE's help menu includes tutorials in Adobe.pdf format. Information and how to download a FREE copy of the Adobe Acrobat Reader can be obtained from http://www.adobe.com/.
It is highly recommended that you obtain the latest version of the Adobe Acrobat Reader.
| Piping Codes |
This sections contains the list of piping codes, code editions supported and AutoPIPE license edition (Standard, Advanced or Nuclear) for which these items are supported.
Standard Edition Piping Codes
| Piping Code | Description |
| B31.1 Power | Power Piping |
| B31.3 Process Piping | Process Piping |
| B31.4 Liquid Trans. | Liquid Transportation Systems for Hydrocarbons, Liquid Petroleum Gas, Anhydrous Ammonia and Alcohols |
| B31.8 Gas Trans. & Dist. | Gas Transmission and Distribution Piping Systems |
| EN 13480 | European Piping Code for Metallic Industrial Piping |
| General | General Piping Code |
| ASME B31J |
Stress intensification factors, flexibility factors, and sustained stress factors used in B31 piping analysis |
Extra Codes Available in AutoPIPE Advanced Edition
AutoPIPE Advanced includes all codes available in AutoPIPE Standard, as well as the following codes.
| Piping Code | Description |
| CSA-Z662 | Canadian Standards Association, Oil and Gas Pipeline System |
| CSA-Z662 Offshore | Canadian Standards Association, Offshore Steel Pipelines |
| BS 806 | Design and Construction of Ferrous Piping Installations for and in Connection with Land Boilers |
| BS 7159 | Design and Construction of Glass Reinforced Plastics (GRP) Piping Systems for Individual Plants or Sites |
| SPC-2 | Swedish Piping Code, Method 2 |
| TBK5-6 | General Rules for Piping, The Norwegian Pressure Vessel Committee |
| STOOMWEZEN | Dutch Piping Rule D1101 of the Rules for Pressure Vessels |
| DNV Offshore | Det Norske Veritas, Rules for Submarine Pipelines |
|
MITI 501 3-1980 |
MITI 501 Class III Piping Code |
| KHK | KHK E 012 Piping Code, Seismic Level 1 or 2 (Seismic Level 2 requires a KHK 2 Add-On license) |
| RCC-M | French Piping Code for Power Industry |
| SNCT | French Piping Code for Process Industry |
| SNIP Russian 2.05.06-85 Oil & Gas | Russian SNIP piping code for oil and gas |
| ISO 14692 | Petroleum and Natural Gas Industries - Glass Reinforced Plastics (GRP) Piping |
| B31.4 Offshore | Offshore Liquid Piping Systems |
| B31.8 Offshore | Offshore Gas Transmission |
| B31.12 Hydrogen Industrial Piping | ASME B31.12 Hydrogen Pipelines (Section IP) |
| B31.12 Hydrogen Pipelines | ASME B31.12 Hydrogen Pipelines (Section PL) |
| ASME NM-2 | ASME Fiber-Reinforced Thermosetting-Resin Piping Systems |
Extra Codes Available in AutoPIPE Nuclear Edition
AutoPIPE Nuclear includes all codes available in AutoPIPE Standard and AutoPIPE Advanced, as well as the following codes.
| Piping Code | Description |
| ASME NB Nuclear | Boiler and Pressure Vessel Code, Rules for Construction of Nuclear Power Plant Components; Division 1, Subsection NB, Class 1 Components |
| ASME NC Nuclear | Boiler and Pressure Vessel Code, Rules for Construction of Nuclear Power Plant Components; Division 1, Subsection NC, Class 2 Components |
| ASME ND Nuclear | Boiler and Pressure Vessel Code, Rules for Construction of Nuclear Power Plant Components; Division 1, Subsection ND, Class 3 Components |
| ASME NCD Nuclear | Boiler and Pressure Vessel Code, Rules for Construction of Nuclear Power Plant Components; Division 1, Subsection NCD, Class 2 and Class 3 Components |
| JSME PPC Nuclear | JSME S NC1: Rules on Design and Construction for Nuclear Power Plants, Class 2 Piping |
| Error History |
The following outline identifies all major errors fixed in AutoPIPE 2025 (25.0.0) yearly release and occasional minor updates:
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- Defect 1666326: ASME NM-2: Allowable SH(2:1) field on Operating Pressure and Temperature dialog may incorrectly get updated if the Auto checkbox for Allowable SA(2:1) field is unchecked
- The value of the Allowable SH(2:1) field on the Operating Pressure & Temperature dialog may get updated to an incorrect value if the Auto checkbox for the Allowable SA(2:1) field is unchecked. The incorrect Allowable SH(2:1) value may be lower than the initially entered/correct value and may lead to unconservative allowable stress results. This defect will only impact the ASME NM-2 piping code and will occur only if the input unit for the Allowable Stresses is not PSI (pounds-per-square-inch).
- Defect 1711339: ASME B31.1 [2020 and later editions] - Building settlement category does not include bending stresses
- In the ASME B31.1 building settlement load category, the acceptance criteria for piping system stresses are defined in "ASME Pressure Vessel and Piping Codes and Standards - 1998, PVP-Vol. 360 ", under the section "Building Settlement Loads". These criteria include stresses from both axial forces and bending moments. In AutoPIPE, for ASME B31.1 [2020 and later editions], the calculation of building settlement loads does not include stress due to bending moments. This omission results in incomplete and unconservative stress evaluations for building settlement loads.
- Defect 1625727: Mapped Spectral Accelerations Ss and S1 for regions Alaska, Hawaii, and Puerto Rico are incorrectly high in AutoPIPE
- The mapped spectral response accelerations Ss and S1 provided by AutoPIPE, when modeling an ASCE 2010 Static Earthquake Load or an IBC 2006 Response/Force Spectrum Load, are incorrectly high. The values provided by AutoPIPE are in factors of %g (percentage gravity) whereas they should be in factors of g (gravity).
- Defect 1751855: ASME B31J: Determination of rigid length between tee intersection to run pipe surface always assumes the branch is perpendicular to the run
- The rigid length from tee intersection to run pipe surface along the branch centerline as mandated by ASME B31J (2017 and 2023) Figure 1-6 is not performed correctly for junctions whose branch is not perpendicular to the run. Instead, the calculated length always assumes the branch is perpendicular to the run, which resolves to one-half outside diameter of the run pipe.
- Defect 1719295: PRCI Soil Stiffness Calculations: Program does not limit the Maximum Transverse Horizontal Soil Resistance equal to the Maximum Transverse Vertical Down Soil Resistance as per Equation A.2
- Equation A.2, in Appendix A Section A.1.2 of the "Guidelines for constructing natural gas and liquid hydrocarbon pipelines through areas prone to landslide and subsidence hazard" report published in January 2009 by Pipeline Research Council International (PRCI), is used to calculate the Maximum Transverse Horizontal Soil Resistance in AutoPIPE. The equation limits the calculated Maximum Transverse Horizontal Soil Resistance to a maximum value which is equal to the Maximum Transverse Vertical Down Soil Resistance. However, the program does not limit the Maximum Transverse Horizontal Soil Resistance and allows it to be greater than the Maximum Transverse Vertical Down Soil Resistance, which is incorrect.
- Defect 1797704: ASME B31J: Incorrect Forces and Moments for SAM Load Case with ASME B31J-Enabled
- When analyzing a model with ASME B31J enabled, AutoPIPE produces incorrect forces and moments for SAM (Seismic Anchor Movement) load cases. This issue occurs because AutoPIPE does not properly consider SAM load cases during B31J analysis. Although SAM load cases are not applicable under B31J, the program still processes SAM load cases using the B31J flexibility analysis, which leads to incorrect and potentially unconservative computed forces and moments.
- Defect 1750741: ASME B31J: Program may not set branch torsional SIF equal to branch out of plane SIF when branch pipe axis angle is greater than 5 deg normal to run pipe axis
- For B31J enabled models, the program may not set the branch torsional SIF (itb) equal to the branch out-of-plane SIF (iob) for ASME B31J table 1-1 sketches 2.2, 2.3, 2.5, and 2.6. This happens when the branch pipe axis angle is greater than 5 deg normal to run pipe axis, and either D/T ≥ 50 or d/D > 0.6. This results in incorrect torsional SIF values being used for these branch connections, leading to incorrect and potentially unconservative stress results. This defect impacts both B31J 2017 and 2023 editions.
- Defect 1746165: AutoPIPE incorrectly uses average yield strength instead of yield strength determined at average temperature
- AutoPIPE incorrectly considers average yield strength when evaluating thermal stress ratcheting allowable of the transient under consideration. ASME NB-3653.7 states that this allowable instead requires the yield strength taken at the average of the transient temperature.
- Defect 1926771: ASME NB: Equation 14 uses allowable stress intensity at design temperature but should use average allowable stress intensity at operating temperatures of transient
- When evaluating alternating stress as per equation 14 in section NB-3653.6(c), AutoPIPE considers allowable stress intensity at design temperature. The code requires that this allowable variable should be calculated as the average for the highest and lowest temperatures of the metal during transient instead.
- Defect 1301389: Program incorrectly considers cross-type junctions for tee moment summation calculations
- A bug in ASME NB, NC/ND (1983-2001), and JSME causes tee moment summation calculations (as described in section NB-3683.1) to be considered in stress equations for cross-type junctions with more than three legs. However, this code section does not support junctions with more than three legs, as tee moment summation requires a clearly defined branch leg and two runs of the junction as a cross-type junction does not have a clearly defined branch. For piping codes other than ASME NB, NC/ND (1983-2001), and JSME codes that does not require tee moment summation, the in-plane and out-plane moments are swapped incorrectly for cross junctions.
- Defect 1730805: ASME NM-2: Operating Pressure & Temperature dialog does not set user-defined values if different material property is encountered
- The Operating Pressure & Temperature dialog does not apply the user-defined values to the entire range of points, selected in a model, if the range of points have different pipe materials. The fields, for which the dialog does not apply the user-defined values to the selected range of points, include: Axial Hot Modulus E6, Hoop Hot Modulus E6, SA(0:1), SA(2:1), SH(2:1), SA(0:-1), and Poisson Vhl. This defect only impacts the ASME NM.2 piping code.
- Defect 1708423: Fuzz Testing: Program crashes on automatically modified models
- Fuzz testing was performed using multiple automatically modified models. In most cases, the program correctly detected that the model was corrupted. However, for some models, the program crashed due to memory access violations, which have since been fixed.
- Defect 1753703: Tee local axes may be determined incorrectly for tees for which the branch is not perpendicular to the header
- AutoPIPE adopts the approach of determining the tee local axes such that for header the local x-axis is always parallel to the header and the local y-axis is always parallel to the branch. A similar case can be applied to the branch local axes as well, where the branch local x-axis is always parallel to the branch and the local y-axis is always parallel to the header. This approach can cause issues in tees for which the branch is not perpendicular to the header resulting in the header and branch local x and local y axes not being perpendicular to each other.
- Defect 1666326: ASME NM-2: Allowable SH(2:1) field on Operating Pressure and Temperature dialog may incorrectly get updated if the Auto checkbox for Allowable SA(2:1) field is unchecked
| Copyright |
Bentley, the "B" logo, AutoPIPE, MicroStation, ProjectWise, SELECT, and MDL are either registered or unregistered trademarks or service marks of Bentley Systems, Incorporated, or one of its direct or indirect wholly-owned subsidiaries. Other brands and product names are trademarks of their respective owners.
© 2025, Bentley Systems, Incorporated. All Rights Reserved.
Including software, file formats, and audiovisual displays; may only be used pursuant to applicable software license agreement; contains confidential and proprietary information of Bentley Systems, Incorporated and/or third parties which is protected by copyright and trade secret law and may not be provided or otherwise made available without proper authorization.
Complete copyright information can be found in the product by choosing Help > About.
For reference, a copy of the End User License Agreement named "EULA.pdf" is included in the product installation folder.
|
Corporate Headquarters Bentley Systems, Incorporated |
Bentley EMEA Bentley Systems International Limited |
Bentley Asia Bentley Systems (Beijing) Co., Ltd. |
| Online Information |
requires access to the Internet
See Also
How do I download, install, and license AutoPIPE?
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