Powerstop_slider
Powerstop© is a popular and proven expanding stopper in sizes 3”, 4”, 5”, 6”, 8”, 10” and 12” Used by many Gas Utilities and Water companies, it has two distinct advantages: The rubber seals expand 20mm in range and takes up ovality or build up within the pipeline. The mechanical special seal allows new sections of pipe to be pressure tested between the stops.