| 摘要 |
An apparatus for isolating elbow fittings includes a fluid containing elbow housing comprised of cooperating components. The elbow housing has a first opening for a first branch of an elbow, a second opening for a second branch of an elbow and a tool insertion opening in axial alignment with the first opening. Means are provided for securing the cooperating components of the elbow housing around an elbow. A seal seals the first opening, the second opening, and the cooperating components. An isolation valve controls the tool insertion opening.
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