Pressure Vessel Design Calculator (ASME VIII Div.1)

ASME Section VIII Division 1 Pressure Vessel Design Calculator

A production-grade engineering tool for preliminary pressure vessel design per ASME BPVC Section VIII Division 1 (2023 Edition).

Key Capabilities

• Shell thickness calculation per UG-27(c)(1): t = PR/(SE – 0.6P)
• 5 dished head types (2:1 Semi-Elliptical, Hemispherical, F&D, Flat bolted, Conical) per UG-32
• 16 ASME-approved materials with full II-D allowable stress tables interpolated across 13 temperature points
• UCS-66 MDMT exemption analysis with curves A, B, C, and D
• ASME B16.5 Table 2 flange auto-rating (150 to 2500 lb classes)
• NACE MR0175 sour service warnings and PWHT triggers
• Vessel weight estimation (empty, operating, hydrotest)
• Support type recommendation (Zick saddles, legs, skirt)
• Print-friendly output for project calculation records

Built For

Process engineers, mechanical engineers, EPC project teams, plant engineers, vendor evaluators, and consultancies needing fast preliminary vessel sizing.