Abstract: A gas valve is adapted for controlling the flow of a medical gas for oxygen therapy in case of spontaneous breathing. The gas valve comprises a connection component for connecting the gas valve to an external supply; and a regulating system configured for selecting and supplying a pulsating flow of medical gas or a continuous flow of medical gas, in which the regulating system comprises a first sub-regulating system for supplying a pulsating flow and a second sub-regulating system for supplying a continuous flow.

Abstract: A gas valve is arranged for controlling the flow of medical gas for oxygen therapy in case of spontaneous breathing. An embodiment of the gas valve contains a connection component to connect the gas valve to an external supply such as for example an external supply network for medical gases at a pressure lower than 50 bars. The gas valve may contain a regulating system configured to select and supply a pulsating or continuous flow of medical gas in which the regulating system contains a flow rate regulator to controllable set the flow rate of the continuous flow.