It is a modern system to control fluids specially designed to optimize the operation of the citiespotable water networks. It is based on a control device and a system of internal lock that allows only authorized personnel to change its position. It is equipped by a diaphragm of high precision that allows to voluntarily graduate and regulate the volume of water that passes through it. Now cost and water saving are possible with FLU_CON. FLU_CON, is a flow or volume regulating valve working by a diaphragm system. Its manufactured with a special kind of brass so that in its body does not exist: