A pipeline filter assembly comprising a base assembly, an outer wall, and a lid assembly. The outer wall has a lower end portion and an upper end portion, wherein the upper end portion comprises a lower collar, and the lower collar comprises at least one lock notch spaced around an exterior surface thereof. The lid assembly is configured to couple to the lower collar of the outer wall. The lid assembly has an upper collar configured to threadedly mate with the lower collar. The upper collar has at least one housing that projects from the upper collar, the housing having an interior surface, and at least one biasing clip pivotally mounted within the housing for releasable engagement with the lock notch. A pair of pipeline filter assemblies, wherein at least one connection plate is used.

A refrigeration system includes a water circulation system and a replaceable water filter. The refrigerator includes a sensor that determines if a water filter is present, and a user interface that prompts a user to purge a water filter upon installation of a new water filter in the refrigerator. The water filter may include a memory storage device that stores information concerning the allowable life of the water filter, the remaining life of the water filter, and other information. Information concerning the remaining life of the water filter and other information can be displayed or otherwise communicated to a user by the user interface.

Methods and systems for recovering retained filtered fluid are provided.

A filter device may include a filter housing and a filter element defining a longitudinal axis disposed in the filter housing. The filter element may be configured to be penetrated by a fluid flow in a radial direction from a raw end to a pure end of the filter element. A water separator may be disposed at the pure end of the filter element and arranged axially spaced from the same. The water separator may have a hydrophobic and annular diaphragm extending in an axial direction of the filter element configured to be penetrated by the fluid flow from a raw end of the water separator in a radially outward to a radially inward direction with respect to the longitudinal axis to separate water from the fluid flow.

A filter device may include a filter housing and a filter element defining a longitudinal axis disposed in the filter housing. The filter element may be configured to be penetrated by a fluid flow in a radial direction from a raw end to a pure end of the filter element. A water separator may be disposed at the pure end of the filter element and arranged axially spaced from the same. The water separator may have a hydrophobic and annular diaphragm extending in an axial direction of the filter element configured to be penetrated by the fluid flow from a raw end of the water separator in a radially outward to a radially inward direction with respect to the longitudinal axis to separate water from the fluid flow.

1. Filter apparatus. 2. The invention relates to a filter apparatus, in particular for the filtration of hydraulic media, comprising a filter housing (4) and a filter element (30) arranged therein, characterized in that air present in the filter housing (4) can be removed therefrom by suction by means of a degassing device (52) that generates a negative pressure.

A phase separation device having a device housing (2) accommodating at least one coalescer element (42), wherein said device housing (2) has an inlet (38) for the supply of an emulsion, which flows through the respective coalescer element (42) for separation into at least two of its constituents; an outlet (46) for a separated constituent; and a further outlet (22, 64) for a further separated constituent having a lower density than the one constituent and floating on the latter.

A fuel-water separator includes a cartridge assembly and a bowl. The cartridge assembly receives a fuel-water mixture and provides a fuel. The cartridge assembly includes an endplate. The bowl is configured to store water separated from the fuel-water mixture. The bowl is coupled to the endplate. The endplate includes an air vent that receives air from the bowl. The air vent establishes a pressure equilibrium within the bowl and the cartridge assembly.

An aqueous fluid filter assembly with aeration mitigation includes a cap, a bowl engaging the cap and defining a filter volume, and a filter element disposed in the filter volume. The filter element is sealed against an interior of the cap and an interior of the bowl to provide an unfiltered volume and a filtered volume. An inlet is in fluid communication with the unfiltered volume and an outlet is in fluid communication with the filtered volume via a pickup section. The pickup section has a pick-up section inlet extending into the filtered volume and an air-metering orifice, wherein the air-metering orifice has a diameter less than 30% of the diameter of the pick-up section inlet and the pick-up section inlet is located below the air-metering orifice.

Disclosed is a fuel pre-filter module for pre-filtering fuel for internal combustion engines, including but not limited to internal combustion engines for light trucks, buses, construction, and agricultural machines. Also disclosed is a filter element for use in the fuel pre-filter module.