Valve for controlling a fluid flow comprising: - a valve body comprising a fluid inlet, a fluid outlet, a fluid circulation channel, which extends in a direction, called axial direction, between said fluid inlet and said fluid outlet, - a shutter component arranged in said fluid circulation channel and configured to be able to transition from an open position allowing fluid to circulate in said circulation channel between the fluid inlet and the fluid outlet or vice versa, to a closed position preventing fluid from circulating in the circulation channel between the fluid inlet and the fluid outlet or vice versa, - an actuator of said shutter component adapted to be able to control the position of said shutter component in said fluid circulation channel, - a fixed conical support integral with the valve body and having a tip oriented towards said fluid inlet of said valve body, - a conjugate conical flap rotationally movable relative to the fixed support and having a tip oriented towards said fluid inlet of said valve body, - at least one fluid passage aperture arranged in said conical flap and at least one conjugate fluid passage aperture arranged in said fixed support so as to allow fluid to circulate through said shutter component when said apertures (33a, 33b) are opposite one another and defining said open position, and - a gasket seal axially arranged between said conical flap and said fixed conical support, characterized in that said shutter component comprises: - means for spontaneous axial movement of the conical flap against the fixed support, which means comprise at least one spring configured to allow the conical flap to be kept away from the fixed support when said shutter component is in said open position or in an intermediate position and to be compressed when said shutter component is in said closed position, so as to allow axial movement of said flap that compresses said gasket seal. - a valve body comprising a fluid inlet, a fluid outlet, a fluid circulation channel, which extends in a direction, called axial direction, between said fluid inlet and said fluid outlet, - a shutter component arranged in said fluid circulation channel and configured to be able to transition from an open position allowing fluid to circulate in said circulation channel between the fluid inlet and the fluid outlet or vice versa, to a closed position preventing fluid from circulating in the circulation channel between the fluid inlet and the fluid outlet or vice versa, - an actuator of said shutter component adapted to be able to control the position of said shutter component in said fluid circulation channel, - a fixed conical support integral with the valve body and having a tip oriented towards said fluid inlet of said valve body, - a conjugate conical flap rotationally movable relative to the fixed support and having a tip oriented towards said fluid inlet of said valve body, - at least one fluid passage aperture arranged in said conical flap and at least one conjugate fluid passage aperture arranged in said fixed support so as to allow fluid to circulate through said shutter component when said apertures (33a, 33b) are opposite one another and defining said open position, and - a gasket seal axially arranged between said conical flap and said fixed conical support, - means for spontaneous axial movement of the conical flap against the fixed support, which means comprise at least one spring configured to allow the conical flap to be kept away from the fixed support when said shutter component is in said open position or in an intermediate position and to be compressed when said shutter component is in said closed position, so as to allow axial movement of said flap that compresses said gasket seal.