发明名称 |
High pressure ball valve seal assembly |
摘要 |
A ball design for withstanding high differential pressures without leakage features a circumferential groove near the circle of contact on the ball with a surrounding seat. High differential forces are transmitted beyond the circle of contact so that deflection due to applied differential pressures results in flexing in the groove area while maintaining full circumferential seat contact to prevent leakage. |
申请公布号 |
GB2445509(A) |
申请公布日期 |
2008.07.09 |
申请号 |
GB20080007266 |
申请日期 |
2006.09.28 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
JAMES R ZACHMAN;STEVE L CROW;STEVEN HAYTER |
分类号 |
F16K5/20;F16K5/06 |
主分类号 |
F16K5/20 |
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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