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Valves are grouped into critical components of the system. It is necessary to analyze the performance of valve before it actually being used in system. Parts of valve operating at higher temperature expands which improves sealing and leakage rate is reduced, but in case of valves operating at cryogenic temperature valve parts are subjected to nonuniform contraction which leads to disturbed geometry and causes more leakage. In this paper analysis of 3/4" needle valve at cryogenic temperature isdoi:10.14741/ijcet/22774106/spl.5.6.2016.22 fatcat:h2y5ay72k5bjho5b7uvenswqyy