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http://dx.doi.org/10.5293/kfma.2016.19.4.039

Study on the Fugitive Emissions of a PFA Lined Ball Valve through Helium Leak Detection  

Lee, Won-Ho (Graduate School of Automotive Engineering, Gangneung-Wonju National University)
Kim, Dong-Yeol (K2N Co., Ltd.)
Lee, Jong-Chul (School of Mechanical and Automotive Engineering, Gangneung-Wonju National University)
Publication Information
The KSFM Journal of Fluid Machinery / v.19, no.4, 2016 , pp. 39-42 More about this Journal
Abstract
A PFA lined ball valve, which is machined with fluorinated resin PFA to its inner part for improving corrosion resistance, non-stickness, heat-resistance, has been widely used to the chemical/pharmaceutical industries, the semiconductor/LCD manufacturing processes, etc. with the high purity chemicals as working fluid. EPA stated that 60% of all fugitive emissions come from the valve stem packing in a typical petroleum or chemical processing plant. They monitor regulated components for leaks and maintain seal performance at acceptable levels. Korean industrial standards only deals with the bubble test for in-line leakage of valves, which has the detectable leak rate of $10^{-4}$ [$mbar{\cdot}L{\cdot}s^{-1}$], therefore, it is not sufficient to check fugitive emissions. In this study, we conducted Helium leak detection from a PFA lined ball valve and evaluated fugitive emissions according to ISO 15848-1, which has the detectable leak rate of $10^{-9}$ [$mbar{\cdot}L{\cdot}s^{-1}$], for manufacturing the high-reliable PFA lined ball valves against fugitive emissions.
Keywords
Helium Leak Detection; Fugitive Emission; Leak Rate; PFA Lined Ball Valve; Pressurized Vacuum Method;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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