Live pipe branch tee for branching of gas piping

摘要

This research is about the movable pipe branch of the gas pipeline used in the quarterly operation of the city gas pipeline without cutting off the gas flow.;This study.On the branch T-shirt used in the branch operation of urban gas pipeline,A jacket for quarterly use of a movable tube which can cover the upper part of an existing tube;The movable pipe branch is fixed at the lower part with the top cover, so as to fix the movable pipe branch of the perforation operation with the T-ara cover;The branch T-shirt of gas pipeline for branch operation was inserted with plug in the last quarter to maintain the confidentiality of the pipeline.;According to the above structure, the effect of this study is analyzed as follows:;On the same pipe diameter that cannot be carried out in the existing piping, branches can be carried out with sufficient depth, and the forward length of the crown hole calf generated during the perforation operation will also be longer.