Abstract: Drop line devices for the supply of fluid cargo to the bottom of a tank, especially in combination with cargo circulation units comprising pump means for driving the cargo from and back to the tank. The devices comprise a conduit for arrangement substantially vertically in the tank. The upper end of the conduit is for connection to a pressure source of the cargo. The lower end is connected to a discharge head formed with stationary guide surfaces adapted to direct the outflow of cargo over a predetermined angle in a plane along the bottom of the tank.