A tube connector for attachment to a tube of a pressurized fluid system, wherein the tube connector comprises a housing , a main sealing element , a gripping element and a cone element , wherein the housing comprises a receptacle for receiving the tube , wherein the receptacle is delimited by an insertion end from which the tube can be inserted into the receptacle and an abutment end delimiting the maximum insertion of the tube into the housing , wherein the main sealing element is provided for preventing a fluid from flowing out of a pressurized fluid system at a connection of the tube and the tube connector , wherein the gripping element comprises a passage for receiving the tube , is arranged in the receptacle and comprises a gripping edge for engaging with an outer surface of the tube received in the passage of the gripping element , wherein the cone element is arranged in the receptacle for delimiting a movement of the gripping element towards the insertion end , wherein the tube connector further comprises an integrated release element arranged at least partially in the receptacle and movable along a direction pointing from the insertion end to the abutment end , wherein the release element comprises a passage for the tube , a tubular part and an environmental sealing element , wherein a release edge of the tubular part is adapted for engaging with the gripping element and moving the gripping element , such that the gripping element releases the tube inserted into the passage of the gripping element , and wherein the environmental sealing element provides a sealing of the receptacle from an environment, characterized in that the environmental sealing element is adapted for sealing the release element towards an inner surface of the housing and towards an outer surface of the tube inserted into the passage of the release element . wherein the housing comprises a receptacle for receiving the tube , wherein the receptacle is delimited by an insertion end from which the tube can be inserted into the receptacle and an abutment end delimiting the maximum insertion of the tube into the housing , wherein the main sealing element is provided for preventing a fluid from flowing out of a pressurized fluid system at a connection of the tube and the tube connector , wherein the gripping element comprises a passage for receiving the tube , is arranged in the receptacle and comprises a gripping edge for engaging with an outer surface of the tube received in the passage of the gripping element , wherein the cone element is arranged in the receptacle for delimiting a movement of the gripping element towards the insertion end , wherein the tube connector further comprises an integrated release element arranged at least partially in the receptacle and movable along a direction pointing from the insertion end to the abutment end , wherein the release element comprises a passage for the tube , a tubular part and an environmental sealing element , wherein a release edge of the tubular part is adapted for engaging with the gripping element and moving the gripping element , such that the gripping element releases the tube inserted into the passage of the gripping element , and wherein the environmental sealing element provides a sealing of the receptacle from an environment, characterized in that the environmental sealing element is adapted for sealing the release element towards an inner surface of the housing and towards an outer surface of the tube inserted into the passage of the release element . <EOS>