The triple eccentric butterfly valve has metal sheet and this study about butterfly valve ceiling is an innovative approach. But it is affected by the static pressure as well as cross-current. The damage at the valve on the pipe resulted from the reflux is due to valve leakage. This study is investigated on the triple eccentric disk and it is applied with angle and the static pressure in all cases to develop cross-current triple eccentric butterfly valves. The disc with the diameter of 300A is valve against flow velocity. The entrance pressure by flow characteristics is performed with numerical analysis. As the result, valve torque production is reduced more than the conventional triple eccentric valve and entrance pressure is decreased on the increase of valve open angle. And flow coefficient can be known to be increased.

Abstract
 1. 서론
 2. 해석모델
  2.1 버터플라이 밸브
  2.2 해석 모델
  2.3 격자 생성 및 수치해석 방법
 3. 유동해석 결과
  3.1 밸브 유동해석
  3.2 밸브 압력 분포
 4. 결론
 참고문헌

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