A coupler (R) female element (4) able to be coupled with a male element (2) for the removable fluid junction of two pipes. The female element body (20) centered on a first longitudinal central axis (X20) with an inner volume (V20) for receiving the male element. Additionally, the female element has a central plunger (44) longitudinally secured to the body and positioned within the inner volume, with a slide valve (46) movable within the inner volume around the central plunger between a forward closing position, in which the slide valve (46) cooperates tightly with the body (20) and the central plunger (44), and a withdrawn open position. The female element body (20) including an outer flange ring (22) positioned around the inner volume and having an outer radial surface. The outer flange ring has at least two passages (32), each passage being arranged through the outer flange ring and linking the outer radial surface and the inner volume.