A replacement filter element having a removable pin attached to the filter elements is described. The removable pin is attached to the filter element via a first interference fit. When the replacement filter element is installed into a filtration system having a drain valve with an internal draft, the removable pin seals onto the drain valve and forms a second interference fit between the drain valve and the pin. The pin seals an opening in the drain valve. The second interference fit is stronger than the first interference. Accordingly, when the replacement filter element is removed from the filter housing (e.g., during a service event of the replacement filter element), the pin detaches from the replacement filter element and remains positioned within the drain valve thereby preventing fluid from leaking from the housing when the filter element is removed. The pin permanently plugs the drain valve once installed.

A filter element is provided with a filter medium and a first end disk connected to the filter medium. A first bayonet protrusion is disposed on the first end disk and designed to engage behind a first bayonet receptacle of a filter housing of a filter. The first bayonet protrusion has a free end. The first bayonet protrusion projects at least over sections thereof in a radial direction relative to a filter element longitudinal axis of the filter element past the filter medium. The free end projects in the radial direction toward the filter element longitudinal axis. A filter with a filter housing provided with a first bayonet receptacle is provided and the filter element is arranged in the filter housing such that the first bayonet protrusion on the first end disk engages behind the first bayonet receptacle of the filter housing.

An air separator, fuel delivery system and installation set are provided. The air separator includes a vessel defining a hollow interior chamber having an inlet for receiving fuel from a fuel source and an outlet for fluidic communication with an engine. An air-bleed receives and removes a quantity of undesired gas, which is in fluidic communication with a discharge port. Further, a filter media for contact with fuel received and a conduit for delivering fuel passing through the filter media to the outlet. The air separator removes gas from the fuel prior to passage through the outlet to the engine, with the gas passing through the air-bleed. The air bleed includes a fluidic mixing alcove for passage of the gas through the discharge port. The air separator is between the transfer pump and the engine. Finally, installation sets for mounting the air separator to the fuel delivery system.

A water separation group is for a fuel filtration and separation assembly of a vehicle fuel circulation system. The assembly includes an assembly casing extending along a longitudinal axis positionable in the vehicle in a horizontal position and accommodating a filtration group for filtering dirty fuel. The water separation group is positionable in the assembly casing in fluidic connection with the filtration group and extends along a main axis parallel to and/or coincident with the longitudinal axis. The water separation group includes a separator and a blocking device below the separator to prevent return of separated water to the separator. The blocking device includes a blocking surface extending longitudinally forming an angle with the direction of the main axis that inclines at least a portion of the blocking surface to allow water separated from the fuel to flow towards the wall from which the blocking surface extends.

A water sensor for detecting water in gas oil filters is provided. It has a first and a second electrode; a first and a second earth connection for earthing the first electrode and the second electrode; a first switch arranged in the first earth connection; a second switch arranged in the second earth connection; a first and a second current connection for injecting a first current into the first electrode and a second current into the second electrode; and a current-generating circuit connected to the first electrode and to the second electrode by means of the first current connection and the second current connection respectively, and designed to inject the first current into the first electrode and the second current into the second electrode, the first current and the second current being the same.

A filter system including a designated filter cartridge having a geometric projection, a flow restriction valve that controls fluid flow out of a filter system, and a priming pump configured to prime the filter. The flow restriction valve. The flow restriction valve includes at least on fluid flow check valve configured to allow the priming pump to prime the filter system.

A drain for a fuel-water separator (FWS) bowl is disclosed. The drain may include a valve element configured to float in a first fluid and not in a second fluid, wherein the valve element is in a valve element chamber of the drain, wherein the valve element chamber includes an opening configured to drain the first fluid from the valve element chamber, and wherein the valve element seals the opening when the drain is in an open position and when the first fluid has been drained from the valve element chamber; and a member configured to unseal the valve element from the opening when the drain is in a closed position.

A filter element for a fuel filter has first and second end plates and a particle filter medium arranged between the first and second end plates. A bayonet protrusion on the first end plate is designed to engage a bayonet receptacle of the filter housing by rotation of the filter element about a filter element longitudinal axis. An internal sealing element on the second end plate is designed to separate a raw side from a water collecting chamber of the fuel filter. The filter housing has a filter housing body and a cover screwed onto the filter housing body. The filter housing has a bayonet receptacle arranged on its inner side. By rotating the filter element about a filter element longitudinal axis of the filter element, the bayonet protrusion engages the bayonet receptacle of the filter housing when the cover is unscrewed from the filter housing body.

A discharge control device for a filter system and a filter system for filtering a media flow of a first and a second medium is provided with a collecting chamber that collects the second medium separated from the media flow. A sensor arrangement with a first sensor unit, a second sensor unit, a first shut-off valve having a closure body, and a second shut-off valve is provided. The first sensor unit is operatively connected to the first shut-off valve. The first sensor unit has a float that purely mechanically actuates the closure body of the first shut-off valve. The second shut-off valve is arranged in series in flow communication with the first shut-off valve. The second shut-off valve has an electromagnetically actuatable valve controlled by the second sensor unit as a function of a fill level of second medium in the collecting chamber.

A filter assembly may include a canister and a filter element received in the canister. The filter element may include filter media configured to promote separation of a first fluid from a second fluid having different characteristics than the first fluid as fluid passes through the filter media. The filter element may further include a first end cap, a second end cap, and a tubular member extending between the first and second end caps. The filter assembly may further include a flow cap associated with the first end cap of the filter element. The flow cap may include an inlet portion configured to provide flow communication between an inlet port of a filter base and the tubular member of the filter element, and an outlet portion configured to provide flow communication between an outlet port of the filter base and an exterior portion of the filter element.