A filtration element including a cylindrical housing enclosing a fluid filtration media extending along an axis (X) between opposing ends with a first and second end cap located at each end, wherein each end cap includes: i) an annular surface co-extensive with the housing, and ii) outer face laying in a plane perpendicular with the axis (X). The outer face of at least one end cap comprises an annular groove. A face seal including a base is located within the annular groove. A flexible lip extends axially from the base and axially beyond the outer face of the end cap and is adapted to engage with an abutting outer face of an end cap of an adjacently positioned filtration element.

A fixing device is adapted for installing on a water filter which includes a base seat and an outer shell. The fixing device includes first and second curved members adapted to be clipped on a junction between the base seat and the outer shell, and a fixing module. The fixing module includes a hook member and a fastener unit that includes a handle member and a ring member which is removably engaged with the hook member. The handle member is pivotable between a fastened position and a released position, where the ring member is permitted to be disengaged from the hook member to release the first and second curved members from the junction between the base seat and the outer shell. A water filter including the fixing device is also provided.

A filter assembly for an engine, has: a housing having a longitudinal axis and defining an internal volume, the housing having an open end; and a cartridge assembly receivable within the internal volume via the open end of the housing and securable to the housing, the cartridge assembly including a filter cartridge, a cover removably secured to the filter cartridge, and a sealing member between the cover and the filter cartridge, a locking engagement between the cover and the filter cartridge to limit an axial movement of the cover relative to the filter cartridge upon removal of the cartridge assembly from the housing.

A fluid-purifying element has a purifying medium delimiting an element interior. An end body is disposed at an axial end face of the purifying medium and has a radially outer circumferential side provided with an elastic annular seal element. The end body has an end body holding contour for the seal element that extends at least in sections continuously circumferentially at the radially outer circumferential side. The seal element has a seal holding contour arranged at a radially inner circumferential side thereof. The seal element has a seal surface extending at least across a portion of a radially outer circumferential side thereof. The end body holding contour has a protrusion extending at least part-circumferentially and radially outwardly. The protrusion tapers radially outwardly. The seal holding contour has a V-shaped depression extending at least part-circumferentially and radially outwardly. The end body holding contour engages the seal holding contour.

Certain embodiments include a screen assembly of a vessel, where the screen assembly includes a plurality of fixed elements and a retainer, and the retainer includes a ring, a plurality of wedges disposed about the ring, and a plurality of keyholes at spaced locations about the ring. Each keyhole includes a bore and a slot extending from the bore into an adjacent wedge of the plurality of wedges, the slots have a width less than the bores, and the retainer may receive the fixed elements through the bores and may be rotated in a relation with the plurality of fixed elements to bring the plurality of fixed elements into simultaneous engagement with the wedges.

A straining apparatus is provided for installation on a container, the container having a cavity and a rim. The straining apparatus includes a body portion defining a volume, the body portion made of a screen material configured for insertion into the cavity. A collar portion defines an opening to the body portion and is configured to fold over the rim when the body portion is disposed in the cavity. A closure mechanism is coupled to the collar portion. The closure mechanism is configured to face away from the container when the collar portion is folded over the rim, thereby allowing convenient access to the collar portion. The closure mechanism is lockably adjustable and configured such that it holds the collar portion against the container in a predetermined position below the rim.

A filter device has a filter housing and a filter element arranged in the filter housing. The filter element at least partially encloses an inwardly positioned flow chamber. A purified medium can be discharged from the filter device through a flow socket provided with a wall that has an opening. A fastening flange is arranged at the wall of the flow socket adjacent to the opening, wherein a purging gas pipe of a purging device can be detachably fastened by the fastening flange to the flow socket. The opening in the wall of the flow socket receives the purging gas pipe.

A filtration system comprises a housing and a shell housing removably coupled to the housing. A valve comprise a valve housing and a plunger. The plunger comprises a seal member structured to seal an opening in the valve housing. The plunger is axially movable between a closed position, in which the seal member seals the opening, and an open position, in which the seal member does not seal the opening, thereby permitting fluid to flow through the valve housing. A filter element comprises filter media and an endcap. The endcap comprises an alignment tab configured to rotationally secure the filter element with respect to the shell housing when the shell housing is received in the housing. The endcap comprise a valve interaction projection structured to transfer rotation of the filter element and the shell housing to the plunger during installation of the filter element.

An automatic self-cleaning filter that is driven by a submersible actuator and is configured to clean or filter one or more substances from a liquid.

A removable closure assembly has a cap making a liquid-tight seal with a tri-clamp assembly to the open end of a filter assembly body. The closure assembly has a filter which fits within the filter body. To aid in separating the closure assembly from the body, the cap has an outwardly extending shaft fixed thereto. The shaft is terminated by a radially protruding stop block. A handle is slidable on the shaft and functions as a slide hammer weight with an end wall facing the cap through which the shaft extends. The handle is movable to strike the shaft stop block and apply a force to the stop block and shaft for separating the cap from the body. The stop block has axial channels allowing a clean out of place system to exchange cleaning fluid with an interior volume of the handle.