发明名称 |
Seal assembly |
摘要 |
<p>A seal assembly for sealing an annular space between an inner and an outer pipe in a double-walled subsea pipeline which seal assembly comprises an annular member (1) and moveable blocking means (2, 3) and: (a) under normal operating conditions is in a non-sealing position which allows the passage of a gas through said seal assembly; and (b) is actuatable from a non-sealing position to a sealing position in response to the entry of liquid into said annular space.</p> |
申请公布号 |
GB2391281(B) |
申请公布日期 |
2005.11.02 |
申请号 |
GB20020017295 |
申请日期 |
2002.07.26 |
申请人 |
* COFLEXIP STENA OFFSHORE LIMITED;* COFLEXIP SA |
发明人 |
* COFLEXIP STENA OFFSHORE LIMITED;* COFLEXIP SA;DAVID * BROCKLEBANK;SYLVAIN * DENNIEL;MICHAEL ANTOINE JOSEPH CAROLINE * BELL |
分类号 |
F16L7/02;(IPC1-7):F16K17/34;F16L55/10 |
主分类号 |
F16L7/02 |
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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