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A Study on the Fluid Interception Valve According to Non Rubbing Top and Bottom operation Shaft  

Cho, Myung-Hyun (Seoil College Dept. Electrical Engineering)
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Abstract
Liquid valve is divided into cylinder and liquid part or composed of a single body structure. It becomes a connected structure to cylinder head after inserting stainless(STS) shaft to Teflon packing. In injecting and intercepting fluid, working efficiency becomes low because of the top and bottom round trip operation the friction between Teflon packing and STS shaft fluid leakage, decline of working environment, and each part replacement. And so target value is unattainable in productivity liquid valve design, quality, and structure change are studied. In this paper, designed to solve the existing problems basically, to prevent friction of Piston by developing diaphragm linked with piston, to satisfy long life, and to provide the prevention of leakage. The objective of the study is also to prevent remains fluid at nozzle tip after dispensing fluid, and bell close with the suction function in piston retreating.
Keywords
Stainless; Teflon; Viton; Polyurethane; Poly tetra fluoro ethylene;
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