An end member (3A) for a spiral separation membrane element includes: an inner annular portion (31); an outer annular portion (32) surrounding the inner annular portion (31) at a distance from the inner annular portion (31); a plurality of connecting portions (33) connecting the inner annular portion (31) and the outer annular portion (32); and a shield plate (34) disposed between at least one pair of the connecting portions (33) and forming an opening (41) between the shield plate (34) and the outer annular portion (32). According to this configuration, a radially outwardly spreading flow is formed by the shield plate (34), and therefore suspended solids in a feed liquid can be effectively directed to the peripheral region.

An oil mist filter includes: a filter body having a tubular shape, the filter body causing processing-target gas supplied to a hollow in the filter body pass through an outer peripheral surface to capture oil mist contained in the processing-target gas; and an end plate disposed at one end surface of the filter body the end plate projecting outward beyond an outer peripheral edge of the one end surface of the filter body. A plurality of ventholes are formed at a portion of the end plate projecting beyond the outer peripheral edge of the one end surface of the filter body. The processing-target gas blown out from the outer peripheral surface of the filter body passes through the ventholes.

Filter assemblies, filter modules, and filtration systems and methods.

Filter assemblies, filter modules, and filtration systems and methods.

A gravity-based filter cartridge having a cup-shaped upper part and a cup-shaped lower part, the upper part having a main axis (X), a first rim at a first axial end, a hole-free section at a second axial end, and at least one water inlet between the hole-free section and the first rim, the lower part having a second rim and at least one water outlet, wherein filter media is arranged in the lower part, the filter cartridge further including a mesh fixated to the upper part along a closed path, wherein the mesh is further fixated to the hole-free section radially inwards of the closed path as well as a method for manufacturing the same.