Flange Bolt Torque Pro is a browser-based engineering tool that calculates bolt torque, verifies joint integrity, and manages assembly records for flanged pipe connections.
Built across four major versions through a rigorous audit cycle, it implements the full ASME PCC-1-2019 torque formula, a class-dependent ASME B16.5 bolt database covering NPS ½”–24″ across all six pressure classes, and the complete ASME VIII Division 1 Appendix 2 dual-load gasket model — computing both the seating load (W_seat = πGby) and the operating load under pressure (W_op = π/4·G²·P + 2b·π·G·m·P) and identifying which governs.
The tool back-calculates the minimum required bolt stress S_req = W_req/(n·As), checks the flange pressure-temperature rating against ASME B16.5 Table 2 with interpolation across three material groups, screens material compatibility per NACE MR0175 for sour service, and provides a torque wrench range checker with ISO 6789 extension correction. Assembly support includes an interactive cross-bolt sequence tracker, an 18-item ASME PCC-1 Appendix A pre-job checklist, a printable torque report, job history with full traceability, and CMMS export in Generic CSV, IBM Maximo, and SAP PM formats.
The engineering model treats bolt stress — not torque — as the primary design variable, making the tool’s outputs directly actionable rather than merely informational.
Pricing
Fleet plans for ship managers and maritime service providers: contact for volume pricing.
Technical Details
– Runs entirely in your browser — no install, no subscription, no cloud dependency
– Responsive design works on desktop, tablet, and laptop
– Dark and light mode
– All data stored locally on your device — nothing sent to external servers
FEATURES
Phase 1: Complete (v4.2)
1. Core torque calculations (ASME PCC-1, EN 1591-1 units)
2. ASME VIII App.2 dual-load gasket model
3. ASME B16.5 P-T rating check
4. Temperature de-rating (ASME II-D)
5. Bolt sequence tracking (all standard bolt counts)
6. Pre-job checklist (18 items, ASME PCC-1 App A)
7. Analytics dashboard
8. CMMS export (Generic, Maximo, SAP PM)
9. Material compatibility screening (NACE MR0175)
10. Torque wrench checker (ISO 6789)
Get Started
Contact us for further information or purchase directly online.