Experimental Investigation of the Effect of Upstream Disturbances on Swing Check Valves

스윙형 역지 밸브에 미치는 상류측 교란요소 영향에 관한 실험적 연구

The experimental loop was designed and installed to measure the disc positions, disc back stop load and differential pressure with flow velocity for 3 inch and 6 inch swing check valves. The tests were performed at various conditions of upstream flow disturbance source and distance from the tested check valves to investigate the effect of the upstream flow conditions on the disc stability of the swing check valves. The selected disturbance sources were elbow, globe valve, and orifice. The experimental results are presented herein.