Servo gas valve for a gas control device, comprising a gas inlet connection; a servo gas connection; a bleed gas connection; a valve body; first and second valve seats (21, 22) acting together with the valve body in such a way that in a first position of the valve body, when a first section of the valve body is pressed against the first valve seat, the gas inlet connection is closed and the servo gas connection and the bleed gas connection are in communication with each other, while in a second position of the valve body, when a second section of the valve body is pressed against the second valve seat, the gas inlet connection is opened and is in communication with servo gas connection while the bleed gas connection and the servo gas connection are not in communication with each other; a valve stem carrying the valve body, wherein the valve stem is moveable in a linear direction to allow a movement of the valve body relative to the valve seats (21, 22); wherein the valve stem provides as an integral part of the valve stem a valve plunger, said valve plunger acting together with an actuator in such a way that when the actuator is activated or energized, the valve stem that provides as integral part the valve plunger presses the second section of the valve body against the second valve seat, while when the actuator is deactivated or not energized, the valve stem that provides as integral part the valve plunger presses the first section of the valve body against the first valve seat, the first section of the valve body and the valve stem allow a self-alignment of the first section of the valve body relative to the first valve seat when the first section of the valve body is pressed against the first valve seat; characterized in that the valve body is provided by a hat-like element having an inner cap-like section and an outer brim-like section, wherein the first section of the valve body acting together with the first valve seat is provided by the inner cap-like section, and wherein the second section of the valve body acting together with the second valve seat is provided by the outer brim-like section. a gas inlet connection; a servo gas connection; a bleed gas connection; a valve body; first and second valve seats (21, 22) acting together with the valve body in such a way that in a first position of the valve body, when a first section of the valve body is pressed against the first valve seat, the gas inlet connection is closed and the servo gas connection and the bleed gas connection are in communication with each other, while in a second position of the valve body, when a second section of the valve body is pressed against the second valve seat, the gas inlet connection is opened and is in communication with servo gas connection while the bleed gas connection and the servo gas connection are not in communication with each other; in a first position of the valve body, when a first section of the valve body is pressed against the first valve seat, the gas inlet connection is closed and the servo gas connection and the bleed gas connection are in communication with each other, while in a second position of the valve body, when a second section of the valve body is pressed against the second valve seat, the gas inlet connection is opened and is in communication with servo gas connection while the bleed gas connection and the servo gas connection are not in communication with each other; a valve stem carrying the valve body, wherein the valve stem is moveable in a linear direction to allow a movement of the valve body relative to the valve seats (21, 22); wherein the valve stem provides as an integral part of the valve stem a valve plunger, said valve plunger acting together with an actuator in such a way that when the actuator is activated or energized, the valve stem that provides as integral part the valve plunger presses the second section of the valve body against the second valve seat, while when the actuator is deactivated or not energized, the valve stem that provides as integral part the valve plunger presses the first section of the valve body against the first valve seat, the first section of the valve body and the valve stem allow a self-alignment of the first section of the valve body relative to the first valve seat when the first section of the valve body is pressed against the first valve seat; wherein the valve stem is moveable in a linear direction to allow a movement of the valve body relative to the valve seats (21, 22); wherein the valve stem provides as an integral part of the valve stem a valve plunger, said valve plunger acting together with an actuator in such a way that when the actuator is activated or energized, the valve stem that provides as integral part the valve plunger presses the second section of the valve body against the second valve seat, while when the actuator is deactivated or not energized, the valve stem that provides as integral part the valve plunger presses the first section of the valve body against the first valve seat, the first section of the valve body and the valve stem allow a self-alignment of the first section of the valve body relative to the first valve seat when the first section of the valve body is pressed against the first valve seat; characterized in that the valve body is provided by a hat-like element having an inner cap-like section and an outer brim-like section, wherein the first section of the valve body acting together with the first valve seat is provided by the inner cap-like section, and wherein the second section of the valve body acting together with the second valve seat is provided by the outer brim-like section.