Valves are pressure and flow control devices, that plays an essential role in water distribution networks. Some of their main functions are to allow the isolation of sectors, avoid overpressure, prevent the emptying of pipes and keep the flow direction and in a single phase.The ability of the valves to perform these functions depends, not only of their structural features, but also on their correct and strategic positioning in the network, taking into account factors such as the system safety, costs related to the installation and maintenance and the homogenization of pressures, among others.
