Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Structural Analysis of 1000A Butterfly Valve Components

1000A용 버터플라이 밸브 주요부품의 구조해석

  • Kong, Yu-Sik (School of Mechanical Engineering, Pukyong National University) ;
  • Kim, Seon-Jin (School of Mechanical Engineering, Pukyong National University) ;
  • Jung, Min-Hwa (R&D Center, Seong Il Precision Machinery Co., Ltd)
  • 공유식 (부경대학교 기계공학부) ;
  • 김선진 (부경대학교 기계공학부) ;
  • 정민화 ((주)성일하이테크 기술연구소)
  • Published : 2009.02.27
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Abstract

This paper deals with a stability evaluation of a butterfly valve using the body and disc of a valve seat. The experimental results of a strength evaluation are shown using STS316 stainless steel and spheroidal graphite cast iron (GCD450). The disc material was made from GCD450. The results of the strength analysis are as follows: Ultimate tensile strength 485MPa, Yield strength 370 MPa, Young's modulus $1.1{\times}10^5$, and Poisson's ratio v = 0.28. For the results of the disc analysis, the safety factor was about 4. This shows that a design was derived that satisfied the requirements of structural safety. However, some problems, such as the deflection and deformation of the disc, may occur when the sea water has back flow with a high pressure.

Keywords

References

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