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Case Study
![36in-high-pressure-isolation-double-block-bleed](/sites/default/files/2021-01/TDW-36in-HighPressure-DoubleBlockBleed-CaseStudy.jpg)
36-Inch High Pressure Line Isolation Using Double Block and Bleed Technology
TDW uses double block and bleed (DBB) technology to achieve first-time isolation success, enabling a natural gas pipeline operator to tie in a pig launcher and receiver without interrupting service to an entire Canadian island.