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DOUBLE-BLOCK AND BLEED (DBB) LINE-STOPPING TOOL, SEALS THEREFOR, AND METHODS OF LINE ISOLATION
DOUBLE-BLOCK AND BLEED (DBB) LINE-STOPPING TOOL, SEALS THEREFOR, AND METHODS OF LINE ISOLATION
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机译:双块和排线(DBB)停线工具,密封垫和线隔离方法
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摘要
Provided is a double-block and bleed (DBB) line-stopping tool for use in line isolation operations, as well as seals to be used with line-stopping tools and methods of line isolation employing the DBB tool.
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