Abstract: The present invention relates to a female coupling and the respective female-male connector, the female coupling being adapted to be connected to and disconnected from a corresponding male coupling by means of pushing and pulling actions, respectively, said female coupling and male couplings comprising a female valve assembly and a male valve assembly respectively, each of said female and male valve assemblies being adapted to be alternatively translated forwards and backwards between a first closing position and a second opening position, wherein the flow of a fluid is possible between the female coupling and male coupling with said female and male valve assemblies in the respective opening positions, wherein said female coupling comprises mechanical locking means adapted to prevent the accidental switching of said female valve assembly from its said second opening position to its first closing position even in case of fluid flow from the male connector to the female connector.

Abstract: The present invention relates to a female coupling and the respective female-male connector, the female coupling being adapted to be connected to and disconnected from a corresponding male coupling by means of pushing and pulling actions, respectively, said female coupling and male couplings comprising a female valve assembly and a male valve assembly respectively, each of said female and male valve assemblies being adapted to be alternatively translated forwards and backwards between a first closing position and a second opening position, wherein the flow of a fluid is possible between the female coupling and male coupling with said female and male valve assemblies in the respective opening positions, wherein said female coupling comprises mechanical locking means adapted to prevent the accidental switching of said female valve assembly from its said second opening position to its first closing position even in case of fluid flow from the male connector to the female connector.