Quick connection for the removable join of pipes

Quick connection for the removable join of two pipes through which a pressurized fluid passes, said connection comprising two elements, male and female, adapted to fit axially in each other, the body of the female element being equipped with a loaded bolt, mounted to slide in said body and pierced with a central opening for fit of said male element, the wall of the opening of the bolt being equipped with three teeth offset with respect to one another along a median axis of said opening, while said male element is provided with a shoulder adapted to rest selectively against one of said teeth, characterized in that said connection comprises means for placing the downstream pipe in communication with the ambient atmosphere when said male element rests by its shoulder against the intermediate tooth.