Abstract: A breast pump for connection to a pair of funnel-like breast bodies via a corresponding pair of vacuum conduits in order to pump mother's milk into a milk collection container, the pump comprising a source of vacuum including pumping devices. A conduit system leads from the vacuum source at one end and comprises a pair of connection portions to be connected to the vacuum conduits at the other end. A pair of valve devices are arranged within the conduit system to distribute the vacuum to the connection portions, the pair of valve devices including a pair of valve bodies separated from each other so as to move independently from each other, a pair of valve chambers each housing one of the pair of valve bodies and each having an inlet opening communicating with the source of vacuum, and an outlet opening communicating with one of the pair of connection portions.