ABC-pipe closed system for use in rescue practices of brake pipe at seabed, has pipe connecting piece exposed to undestroyed pipe shaft piece of approximately specific meters height, sawed off horizontally and freed from sharp ridges

摘要

The system has a pipe connecting piece exposed to an undestroyed pipe shaft piece of approximately 0.80 to 1.20 meters height. The pipe connecting piece is sawed off horizontally and freed from sharp ridges. A pipe collet is lowered with a funnel collar and pushed over the pipe connecting piece. The pipe collet is vertically adjusted to height of a pipe. An upper edge of the pipe connecting piece and an upper edge of the pipe collet form height below the funnel collar. A funnel desk is fixedly mounted with a funnel.