A port device (10) for a fluid storage bag (46) comprises a housing (12) having a bottom wall (14) and opposing sidewalls (16, 18), and a connective opening (20) in said housing (12) opposite to said bottom wall (14). The connective opening (20) is adapted to be connected with said fluid storage bag (46) and has an elongate surface area shaped by a wide center portion (22) and peaked longitudinally opposing ends (24). A port device (10) further comprises at least one access port (26) in said bottom wall (14) adapted to communicate with the interior of said fluid storage bag (46) through said connective opening (20). In order to be fixable to the fluid storage bag (46) in a safe and easy manner, said port device (10) further comprises at least one bridge element (32) supporting said sidewalls (16, 18) and oriented transversely to the longitudinal direction (34).
