The invention proposes a needle free connector (20) for fluid passage, comprising: a valve body comprising : a first port (26) a second port (46) a hollow resilient membrane (30) disposed in the valve body and having: a first end (32) and a second end (34) a flank (38) extending between the first end (32) and the second end (34) fitting with the internal surface of the valve body, a slit (36) of the first end (32) being: closed when the first end (32) is disposed in the first port (26) or opened when the first end (32) is pushed into the valve body.The invention also proposes a drug recipient comprising a bottle or a bag designed to store drug, and the needle free connector.The invention offers a needle free connector with a slitted resilient membrane having reduced priming volume.
