
42-Inch Double Block and Bleed (DBB) Line Stop on AWWA C303 Pipe
Pacific Flow Control recently completed a 42-inch Double Block and Bleed (DBB) line stop on AWWA C303 pipe, providing the additional level of pipeline isolation required for downstream confined-space work. This project is a good example of how the requirements of the work taking place downstream can determine the type of line stopping solution needed. Installing a line stop is







