Pipeline plugging airbags work by inserting the deflated airbag into the pipeline and then inflating it with compressed air to expand and seal off the pipe. This process effectively isolates the section of the pipeline, allowing work to be carried out safely without the need to shut down the entire pipeline system.

Pipeline plugging airbags come in various sizes and configurations to accommodate different pipeline diameters and pressure ratings. They are often equipped with inflation valves and pressure gauges to control the inflation process and ensure a secure seal.