Abstract: The invention relates to suction prehension devices without flap valves. In particular, it relates to a suction prehension device without flap valve of the type including a case (1) connected to a suction cluster and whose base (5) is constituted of a perforated plate having on its exterior face a layer of porous material (3), such as a plastic material foam having, facing the perforations of the said plate, openings (4,6) passing through it from one side to the other, characterized in that the internal surfaces of the openings (4,6) is covered by a sealing or semi-permeable layer (12). Preferably, the sealing or semi-permeable layer (12) is constituted of a bituminous or rubbery coating.