A characteristic analysis of high pressure and high temperature 3-way ball valve

Ball valves have been mostly used for high temperature/high pressure valves using in petrochemical carriers and oil tankers being built in Korea, which requires high quality products with confidentiality and durability. As a larger disaster may be generated by leakage of oil or gas from valves, thus the present research applied a numerical analysis method on thermal stress distribution and deformation, etc. In addition, the present research compared the performance test result with numerical analysis results. The Max stress by parts was confirmed through thermal-structural coupled field analysis of major parts to evaluate safety. And its performance was verified by carrying out the durability and leakage test for the manufactured valves.