Development of new three way valve using vacuum for liquid transfer

Yasuo, Kiyoshi ; Seto, Nobuhiko; Watahiki, Seiichi; Fukuari, Yoshihiro

The nitric acid solution including nuclear fuel material is transferred by the three way valve called VCV (VCV: vide-casse-vide in Fr.) using vacuum in the Tokai Reprocessing Plant. The reliability of initial three way valve was not obtained because failure occurred by use for one or two years. The cause of failure was damage of the plastic diaphragms in the moving parts. Then, the new three way valve with stainless-steel bellows was developed. there is no failure in moving parts, reliability improved significantly.

Language	:	Japanese
Journal	:	Nihon Hozen Gakkai Dai-5-Kai Gakujutsu Koenkai Yoshishu
Volume	:
Number	:
Pages	:	p.385 - 387
Publication Year/Month	:	2008/07
Meeting title	:	日本保全学会第5回学術講演会
Held date	:	2008/07
Location (city)	:	水戸
Location (country)	:	日本
Patent information	:
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DOI for research data	:
Keywords	:	no keyword
Research Facility	:	再処理施設
Press Release	:
Article of JAEA R&D Review	:
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Registration No. : BB20080542
JAEA Abstracts No. : 36001131
Paper Submission No. : 4451

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