| 摘要 |
PURPOSE: A bag for isolating a pipe is provided to safely execute the work although the very outer bag is broken in a piping work by composing the bag of several layers. CONSTITUTION: A bag for isolating a pipe is composed of a bag(10), a first fixing part(20), a second fixing unit(30), a central rod, a gas pipe, and a gas injection port(60). The bag houses nitrogen gas. The bag has elasticity and is composed of two or more layers. The first fixing unit fixes one side of the bag. The second fixing unit fixes the other side of the bag. One end of the central rod is inserted into the first fixing unit. The gas pipe is combined to the other end of the central rod and is formed within the second fixing unit. The gas injection port is combined to the other end of the gas pipe.
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