In this study, temperature and pressure of guided wave radar products are transmitted at high temperature and high pressure. In the case of transmission of temperature pressure, high temperature and high pressure steam leak from the guide rod part to the atmosphere causes the failure. Therefore, in this study, structural analysis and thermal flow analysis of the product are performed to identify the problem of the product, so as to prevent leakage in the product development by grasping the cause of the leakage of the product. In this study, if the method of assembling the lower end of the piston rod and the gasket is changed from line contact to face contact,

Abstract
1. 서 론
2. 제품 파손 분석
3. 접시 스프링 유무에 따른 응력 해석
4. 열응력 해석
5. 유동해석
6. 결과 및 고찰
References

• 나완용(Shinsung University) | Rha Wan Yong Corresponding Author
• 양흠(中國日照職業技術大學) | Yang Heum