In February 2014, Stockhoms city received the necessary permits from the Land and Environment Court to start work on the new underground facilities required for the giant project on traffic junction Slussen. A significant part of Stockholm’s real estates are using city gas and the gas network’s major supply lines passing through the city must get a new distance during the redevelopment.
Proco Services was assigned the contract to manage a part of the work. In order to connect a new pipeline, Proco Services started with a hot tapping on the main pipe (DN500) for installation of a branch connection (DN300). Then, the engineers performed a line stopping of the pipe with DN500, so the supply line could be disconnected. The work could be carried out without the hundreds of thousands of Stockholm residents who depend on gas to their homes suffered