Manufacturing Technology 2026, 26(1):78-87 | DOI: 10.21062/mft.2026.001

Design and Life of a Ball Valve as per the ASME BPVC Section VIII by the Elastic Stress Analysis Method

Anupama Routray ORCID...1, Ripendeep Singh2, Lenka Cepova ORCID...3, V. Sandeep4, B. Swarna B5, Elangovan Muniyandy6, Ankur Bansod7,8, Pavel Krpec3
3 Department of Machining, Assembly and Engineering Metrology, Faculty of Mechanical Engineering, VSB-Technical University of Ostrava, 70800 Ostrava, Czech Republic
4 Department of Mechanical Engineering, School of Engineering and Technology, JAIN (Deemed to be University), Bangalore, India
5 University Centre for Research & Development, Chandigarh University, Mohali 140413, India
6 Department of Biosciences, Saveetha School of Engineering. Saveetha Institute of Medical and Technical Sciences, Chennai 602105, India
7 Petro Valves Private Limited, Ahmedabad 382433, India
8 Lubi Industries LLP Limited, Ahmedabad, 382421, India

The fatigue assessment of a Class 300 valve body with a bore diameter of 450 mm under vari-ous pressures is discussed using Section VIII, Division 2 of the ASME BPVC. Finite element analysis (FEA) results are compared to fatigue test results, and correlations are obtained. The material used for the valve is A216 WCB, which is widely used for making API ball valves. Elastic stress analysis was used to study the influence of various parameters on the results. This method is widely accepted and is used for static components. The body and flange de-signs were performed in accordance with ASME and API standards. Various pressure loads were applied to the inner surface of the valve body, ranging from 4 MPa to 6 MPa. The defor-mation, equivalent stress and stress intensity over the critical areas were analyzed using AN-SYS Workbench. As the pressure increases, the maximum compressive stress over the valve body surface also increases. However, the design of the valve for a pressure of 5.1 MPa (for a Class 300 valve) remained within the safe limit. Increasing the pressure beyond 5.1 MPa also indicates a safe design; the valve can withstand pressure up to 6 MPa (beyond the design pres-sure).

Keywords: Ball Valve, Fatigue life, ASME, BPVC, ASME elliptical mean stress theory
Grants and funding:

The authors extend their acknowledgment to the financial support of the European Union under the REFRESH-Research Excellence For REgion Sustainability and High-tech Industries project number CZ.10.03.01/00/22_003/0000048 via the Operational Programme Just Transition and has been done in connection with project Students Grant Competition SP2025/062 „Specific research on progressive and sustainable production technologies“ and SP2025/063 „Specific research on innovative and progressive manufacturing technologies“ financed by the Ministry of Education, Youth and Sports and Faculty of Mechanical Engineering V©B-TUO.

Received: August 11, 2025; Revised: December 19, 2025; Accepted: January 2, 2026; Prepublished online: January 9, 2026; Published: March 21, 2026  Show citation

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Routray A, Singh R, Cepova L, Sandeep V, Swarna BB, Muniyandy E, et al.. Design and Life of a Ball Valve as per the ASME BPVC Section VIII by the Elastic Stress Analysis Method. Manufacturing Technology. 2026;26(1):78-87. doi: 10.21062/mft.2026.001.
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