Steel, Pipe and Flange Pro
Last updated: July 13, 2026
Introduction/Overview
SPF Pro (Steel, Pipe and Flange Pro) is a mobile engineering reference application designed for petrochemical engineers, piping engineers, fabricators, and design professionals. Built for Android, the app provides instant access to thousands of dimensional data points from engineering standards, including pipe dimensions, flange specifications, and a few basic engineering calculations—all available offline for on-site use.
Key Features
- Complete Pipe Dimensions: ASME B36.10 (Carbon Steel) and B36.19 (Stainless Steel) dimensional data with all schedules and sizes
- Comprehensive Flange Data: ASME B16.5 specifications for Weld Neck, Slip On, and Blind flanges with Raised Face and Flat Face options
- Unit Flexibility: Switch between Imperial, Metric, and Mixed-Metric unit presets to match project requirements
- Interactive Diagrams: Dynamic drawings with dimensions for clear visualization
- Engineering Calculations: Built-in corrosion allowance, milling tolerance, and pipe wall stress calculations
- Pressure-Temperature Ratings: Temperature-dependent pressure rating calculations for flanges
- Size Comparison Tool: USC to DN (Diameter Nominal) conversion utility for international projects and easy cross-reference
- Offline Access: All data available locally without requiring internet connection
Benefits
SPF Pro offers significant advantages for engineering professionals:
- Comprehensive Database: Access to thousands of standard pipe and flange dimensions from ASME standards
- Mobile Convenience: Engineering reference data available on-site without carrying heavy reference books or needing internet connectivity
- Unit Flexibility: Seamlessly switch between unit systems to match international project requirements
- Time-Saving: Quick lookups and calculations reduce design time and improve accuracy
- Basic Calculations: Built-in engineering calculations for corrosion allowance, milling tolerance, and design parameters
How it Works / Usage
SPF Pro features an intuitive interface designed for efficient workflow:
- Home Screen: Quick access to Pipe, Flanges, Fittings, and Structural sections with clear visual navigation
- Smart Selection: Dropdown selectors for size, schedule, pressure class, and flange type
- Real-Time Updates: Diagrams and calculations update instantly as you change selections
- Customizable Settings: Configure units, decimal places, diagram font sizes, and design parameters to match your preferences
- Premium Content: In-app purchase system to unlock extended data ranges
Screenshots/Demos
SPF Pro features a clean, professional interface optimized for mobile use:
- Home Screen: Intuitive navigation with icons for Pipe, Flanges, Fittings, and Structural sections
- Pipe Screen: Dropdown selection with intuitive cross-sectional pipe drawing with dimensions
- Flanges Screen: Detailed flange diagrams showing dimensions, bolt circles, and facing types
- Size Comparison: Visual tool for converting between USC and DN sizing systems
- Settings Panel: Comprehensive customization options for units, calculations, and display preferences
Screenshots coming soon - demonstrating the app's intuitive interface and powerful features.
Pricing/Plans
SPF Pro offers a flexible pricing model with both free and premium options:
Free Tier
- ASME B36.10 pipe sizes up to 6" (DN 150)
- ASME B16.5 flanges CL150 up to 6" (DN 150)
- Basic unit conversion and diagram viewing
Premium Packages
- B36.10 Full - $2.99
Extends B36.10 pipe dimensions to include all large bore sizes from 8" (DN 200) up to 48" (DN 1200) - B16.5 Core - $4.99
Extends B16.5 flange dimensions to include all pressure classes (CL150–CL2500) and sizes up to 24" (DN 600), for Weld Neck, Slip On and Blind flanges with Raised Face and Flat Face options - B36.19 - $2.99
ASME B36.19 (2022) Stainless Steel piping dimensions. All sizes from 1/8" (DN 6) up to 30" (DN 750)
Note: Premium packages are available as in-app purchases. One-time purchase with no subscription required.
Download/Call to Action
Get SPF Pro today and transform your mobile engineering workflow:
- Available on Android - Download from the Google Play Store
- Try Free First - Experience the core features with our generous free tier
- Upgrade When Ready - Purchase premium packages as needed for your specific projects
- Offline Access - No internet connection required for on-site work
Start simplifying your engineering reference work today with SPF Pro!
Contact Information
For support, inquiries, or feedback about SPF Pro:
- Developer: Lignia Digital
- Email: Contact through app store support or in-app feedback system
- Feedback: Use the built-in feedback feature in the app to report issues or suggest improvements
- Updates: Regular updates with new features, standards updates, and performance improvements
SPF Pro is committed to providing accurate, standards-based engineering data and responsive customer support to enhance engineering workflows.
Privacy Policy
Last updated: July 13, 2026
This Privacy Policy describes how Steel, Pipe and Flange Pro ("the App", "we", "us") handles information when you use our mobile application.
1. Information We Collect
We do not collect, store, transmit, or share any personal information. The App does not require an account, login, or any form of user registration.
The only data stored by the App is a single preference flag (whether you have acknowledged the in-app disclaimer). This flag is stored exclusively on your device using the device's secure local storage and is never transmitted to any server or third party.
2. Data Sharing
We do not sell, trade, rent, or otherwise transfer any data to third parties. There are no third-party analytics, advertising SDKs, or tracking libraries integrated into the App.
3. Third-Party Services
The App does not connect to any external servers or APIs. All dimensional data is bundled locally within the App and does not require an internet connection to function.
4. Children's Privacy
This App is intended for professional and educational use by adults. It is not directed at children under the age of 13. We do not collect any information from children under 13.
5. Security
Since no personal data is collected or transmitted, there is no risk of personal data exposure through use of this App. Your device's built-in security mechanisms protect any locally stored preferences.
6. Changes to This Policy
We may update this Privacy Policy from time to time. Any changes will be reflected by updating the "Last updated" date at the top of this page. Continued use of the App after any changes constitutes acceptance of the updated policy.
7. Governing Law
This Privacy Policy is governed by the laws of the Republic of South Africa, without regard to its conflict of law provisions.
8. Contact
If you have any questions about this Privacy Policy, please contact us at:
ligniadigital@proton.me
Disclaimer
Last updated: July 13, 2026
1. Important Notice & Liability Disclaimer
This application is an independent engineering productivity tool designed to streamline the retrieval of public dimensional data. It is not an official publication, product, or substitute for the standards issued by the American Society of Mechanical Engineers (ASME).
The data contained within this application consists entirely of objective physical dimensions extracted and compiled for user convenience. While every effort has been made to ensure the accuracy of the compiled data and calculation engines within this tool, all data is provided "as is" without warranty of any kind, either expressed or implied.
2. Professional Responsibility
Engineering designs, piping layouts, and material selections involve critical safety and structural requirements. The user of this application retains sole professional responsibility for verifying all dimensions, ratings, and calculations against official, up-to-date codebooks and manufacturer specifications before manufacturing, procurement, or installation.
The developer of this application shall not be held liable for any direct, indirect, incidental, or consequential damages, including but not limited to engineering errors, project delays, material failures, or financial losses resulting from the use or misuse of this software.
3. Trademark & Copyright Notice
- All product names, logos, and brands mentioned within this app are property of their respective owners.
- "ASME", "ASME B16.9", "ASME B36.10" and "ASME B16.5" are registered trademarks of the American Society of Mechanical Engineers.
- Use of these names does not imply any affiliation with, endorsement by, or licensing from them. This application is an independent utility utilizing compatible dimensional standards.
4. User Acknowledgment & Verification Agreement
By continuing to use this application, you explicitly acknowledge and agree to the following statement:
"I understand that this tool is for informational purposes only and agree to verify all data against official engineering codes."