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Structural Analysis of 1000A Butterfly Valve Components  

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)
Publication Information
Journal of Ocean Engineering and Technology / v.23, no.1, 2009 , pp. 140-145 More about this Journal
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
Butterfly valve; Valve seat; Tensile strength; Structure safety; Safety factor; Disc;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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