The invention relates to a connector (10) for a fluid conduction system comprising: —a female coupling part (12); —a male coupling part (14) for inserting into the female coupling part (12) along a longitudinal axis (16) of the connector (10); and —controlling means for locking/unlocking the inserted male coupling part (12) within the female coupling part (14) and for controlling the fluidic coupling of the two coupling parts (12, 14) by rotating said two coupling parts (12, 14) against one another about the longitudinal axis (16); wherein a portion of each of the coupling parts (12, 14) is realized as a shut-off valve (18, 24) with a valve body (20, 26) and a rotatable slider element (22, 28), wherein the rotatable slider element (22, 28) of each shut-off valve (18, 24) is in a compulsory closed position when the two coupling parts (12, 14) are unlocked; and wherein the rotatable slider element (22, 28) of each shut-off valve (18, 24) is transferable between the closed position and an open position only if the two coupling parts (12, 14) are locked by use of the controlling means. The invention further relates to a corresponding fluid conduction system.