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公开(公告)号：EP0461741B1
公开(公告)日：1994-09-21
申请号：EP91300976.7
申请日：1991-02-06
发明人： Burton, James A.
CPC分类号： F16L27/12 , F16L55/1608
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公开(公告)号：EP0461741A2
公开(公告)日：1991-12-18
申请号：EP91300976.7
申请日：1991-02-06
发明人： Burton, James A.
CPC分类号： F16L27/12 , F16L55/1608
摘要： An improved length compensating joint suitable for use in repairing pipelines includes an inner tubular member (12), an outer tubular member (14) which receives the inner member in close fitting engagement, seals disposed radially and axially between the inner and outer members define annular piston areas for providing selective relative between the inner and outer members, a pressure responsive locking piston (40) with a camming surface (82) for urging gripping elements (58) into locking engagement with the inner member, a metal-to-metal seal (148, 154) between the inner and outer members which can be deenergized during extension or retraction operations and a test port (128) for verifying the integrity of the metal-to-metal seal after installation. Additionally, a second embodiment provides an alternative metal-to-metal seal configuration which can also be deenergized during extension and retraction operations.
摘要翻译： 适于用于修理管道的改进的长度补偿接头包括内部管状构件（12），以紧密配合的方式容纳内部构件的外部管状构件（14），径向和轴向地设置在内部构件和外部构件之间的密封件限定环形 用于在内部构件和外部构件之间提供选择性相对的活塞区域，具有用于将夹紧元件（58）推动到与内部构件锁定接合的凸轮表面（82）的压力响应锁定活塞（40），金属到金属密封 （148,154），其在延伸或缩回操作期间可以断电的内部和外部构件之间，以及用于在安装之后验证金属对金属密封件的完整性的测试端口（128）。 另外，第二实施例提供了替代的金属对金属密封结构，其也可以在伸展和缩回操作期间被断电。
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公开(公告)号：EP0461741A3
公开(公告)日：1992-02-26
申请号：EP91300976.7
申请日：1991-02-06
发明人： Burton, James A.
CPC分类号： F16L27/12 , F16L55/1608
摘要： An improved length compensating joint suitable for use in repairing pipelines includes an inner tubular member (12), an outer tubular member (14) which receives the inner member in close fitting engagement, seals disposed radially and axially between the inner and outer members define annular piston areas for providing selective relative between the inner and outer members, a pressure responsive locking piston (40) with a camming surface (82) for urging gripping elements (58) into locking engagement with the inner member, a metal-to-metal seal (148, 154) between the inner and outer members which can be deenergized during extension or retraction operations and a test port (128) for verifying the integrity of the metal-to-metal seal after installation. Additionally, a second embodiment provides an alternative metal-to-metal seal configuration which can also be deenergized during extension and retraction operations.
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