Abstract: A filtration element for filtering a fluid medium comprising a rigid porous support of cylindrical shape having a longitudinal central axis (A) and comprising a plurality of channels for the circulation of the fluid medium to be filtered with a view to recovering a filtrate at the periphery of the support. The channels are parallel to a central axis of the support. The channels have at least three filtration crowns, characterized in that at the three crowns closest to the periphery of the support there is at least a substantial alignment of 3 adjacent axes among the axes of the flow and connection paths and the axes of the channels, which favors the mechanical strength of the support.

Abstract: The invention provides a filter module comprising an outer casing provided at each end with a respective support plate for supporting at least one filter element for obtaining a filtrate that is recovered via an outlet passage provided in the vicinity of each support plate. According to the invention, each support plate is extended at right angles by an assembly skirt for assembling to the casing.

Abstract: The invention provides a sealing gasket for mounting in a passage (5) of a support plate (4) to surround the end of a tubular-shaped filter element (3) provided with at least one fluid flow channel (31), the channel lying within a flow section Sc, the gasket being constituted in the form of a sleeve: possessing a height h not less than the height hps of the passage (5) in the support plate (4); and presenting an overlap bore (15) for the filter element (3) defined between one end (16) of the sleeve and a shoulder (17) which co-operates with the other end of the sleeve to define a channel bore (19) for the fluid, the shoulder (17) possessing a surface for acting as an abutment for the terminal portion of the filter element and presenting dimensions that are adapted to extend outside the flow section Sc so as to avoid impeding fluid circulation, the overlap bore (15) being provided with a groove (28) adjacent to the shoulder (17) in order to allow the gasket to creep.

Abstract: The invention relates to a device for using various types of coupling system to connect together a tube (2) and a filter housing (3). According to the invention, the device comprises: a head plate (21) independent of the type of coupling system, the head plate being fixed to the housing (3) and being provided with passages (22) opening out into a bearing face (23) of the head plate; for each backing-plate (Pi) of given type, a first bearing face (25) complementary to the bearing face (23) of the head plate (21) and a second bearing face (29) adapted to co-operate with a flange (B1) of corresponding type; a sealing gasket (28) interposed between the first bearing face (25) of a backing-plate (Pi) of a given type and the head plate (21); and releasable connection means (30) between the head plate (21) and each backing-plate (P1) of a given type in order to provide sealing between them.

Abstract: The invention provides a membrane for cross-flow filtering of a fluid to be treated, said membrane comprising an inorganic rigid porous support defining at least one flow channel for the fluid to be treated flowing in a given direction, the surface of the channel being covered in at least one separator layer separating out from the fluid to be treated a fraction referred to as the permeate which passes through the layer and the support. According to the invention, the separator layer presents a thickness gradient that decreases in the flow direction of the fluid to be treated.

Abstract: The invention provides a membrane for cross-flow filtering of a fluid to be treated, said membrane comprising an inorganic rigid porous support defining at least one flow channel for the fluid to be treated flowing in a given direction, the surface of the channel being covered in at least one separator layer separating out from the fluid to be treated a fraction referred to as the permeate which passes through the layer and the support. According to the invention, the separator layer presents a thickness gradient that decreases in the flow direction of the fluid to be treated.

Abstract: The invention provides a membrane for cross-flow filtering of a fluid to be treated, said membrane comprising an inorganic rigid porous support defining at least one flow channel for the fluid to be treated flowing in a given direction, the surface of the channel being covered in at least one separator layer separating out from the fluid to be treated a fraction referred to as the permeate which passes through the layer and the support. According to the invention, the separator layer presents a thickness gradient that decreases in the flow direction of the fluid to be treated.