Abstract :

The Design And Analysis Of A Circular Weld Neck Forged Flange With Its Bolted Joint Are Performed To Ensure Structural Integrity And Leak-proof Operation In Gas Pipeline Systems. This Study Follows The ASME Boiler And Pressure Vessel Code (BPVC), Section VIII, Division 1, With Primary Emphasis On Appendix 2, Which Governs Flange Design Through Gasket-seating Requirements, Bolt Load Calculations, And Flange Stress Evaluation. Material Selection And Allowable Stresses Are Based On ASME BPVC Section II, Part D, While Dimensional And Pressure-temperature Ratings Are Aligned With ASME B16.5. Bolt Loads Are Evaluated For Both Operating And Gasket Seating Conditions, Ensuring Adequate Sealing Performance. Stress Verification Is Carried Out To Maintain Safety Against Yielding, Leakage, And Excessive Flange Rotation. Analysis Using PVElite 2008 Confirms All Stresses Within Allowable Limits For SA-516 Grade 60 (flange) And SA-193 Grade B7 (bolts). The Flange Rigidity Index J = 0.681 ≤ 1.0, And MAWP Of 7.3 Bar Exceeds The 6.0 Bar Design Pressure By 21.7%. All ASME Code Checks Pass

Published:

11-4-2026

Issue:

Vol. 26 No. 4 (2026)

Page Nos:

1330 - 1335

Section:

Articles

License:

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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