Valve and reservoir(s) for pressurized fluid

A valve for pressurized fluid comprising a body housing a fluid circuit having an upstream end configured to be placed in communication with a reserve of pressurized fluid and a downstream end configured to be placed in communication with a user of fluid, the circuit comprising a collection of valve shutters comprising at least two shutoff valve shutters allowing the circuit to be closed or opened, the valve comprising a control member for manually controlling the collection of valve shutters, the control member being mounted with the ability to move on the body between a rest position in which the collection of valve shutters is in a position in which the circuit is closed and an active position in which the control member actuates the collection of valve shutters into a position in which the circuit is open with a first bore section, the valve comprising a mechanism for locking the control member in the rest position, the locking mechanism comprising a manual actuator mounted with the ability to move on the body between a locked first position that locks the control member to prevent movement moving from the rest position toward the active position, and a second position in which the control member is unlocked allowing movement from the rest position toward the active position, in the unlocked second position, the manual actuator placing the collection of valve shutters in a position in which the circuit is open to a second bore section, further comprising a return member returning the manual actuator toward the locked first position.