Abstract: A ball valve includes a housing which has at least two connector holes defined therein which communicate to a hollow space in which a plug is rotatably disposed, the plug has at least two recesses defined therein and each of the recesses has a sealing element disposed therein for covering the corresponding connector hole when rotating the plug to a closed position, the plug has a hole defined therein which is in alignment with the connector holes of the housing when the valve is in an open state, the plug is actuated by a lever which is connected to a selector shaft extending from the plug by disposing a nut to the selector shaft.