发明名称 |
VANNE DE SAS PERFECTIONNEE |
摘要 |
<p>The invention relates to an isolation chamber valve. The isolation chamber valve of the invention includes, for connecting its inlet passage and its outlet passage, a by-pass circuit of small section comprising at least a flap the opening and closing of which can be controlled as required. This isolation chamber valve is used in particular in the operation of shafts for deposits or the storage of gas or other fluids under pressure.</p> |
申请公布号 |
FR2606853(B1) |
申请公布日期 |
1989.03.03 |
申请号 |
FR19860015868 |
申请日期 |
1986.11.14 |
申请人 |
GAZ DE FRANCE |
发明人 |
DENIS DEVILLEGER;JEAN YVES LE GAC |
分类号 |
E21B33/068;E21B34/02;F16K39/04;F16K39/06;(IPC1-7):F16K5/06;F16K5/10;F16K47/08 |
主分类号 |
E21B33/068 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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