A liquid separation constituent is used with being attached to a top plate to and from which a first element portion is attachable and detachable, and includes a second element portion having a fiber layer, an annular first attachment portion to which an upper end portion of the second element portion is attached, and a second attachment portion to which a lower end portion of a second element portion is attached. The first element portion includes an abutting portion abutting on the top plate and an insertion portion inserted into a through hole of the top plate. The first attachment portion includes a hole portion into which the insertion portion of the first element portion removed from the top plate is insertable, and an annular abutting portion abutting on a lower surface of the top plate from which the first element portion is removed.

A water purification device includes a housing having an outlet for dispensing purified water; a filtration system for purifying water, and a pump mounted to the housing and fluidly coupled between the filtration system and the outlet; and a bladderless accumulator coupled to the pump for accumulating the water. The pump is mounted to the housing via a pump mount that is suspended above the housing. The combination of a bladderless accumulator and pump mount ensures that pulsations generated by the pump are greatly reduced.

The invention is configured for water-supply and comprises the vertically oriented hydraulic accumulator; inlet and outlet connections; connected to a hydraulic accumulator filter with a removable cartridge, located in the casing; the hydraulic accumulator made in a suspended manner and equipped with the commutator with a flange for attachment to the hydraulic accumulator, located in its lower part. The commutator is made with channels, connected with the inlet and outlet connections, and with holes for attached controlling and regulating equipment. Filter casing is installed on the thread at the commutator. The invention reduces the size, and simplifies the structure of the device due to minimizing the number of transitions and connections, while simultaneous improving the conditions for monitoring and controlling water supply modes from one work placefrom the commutator, which is the set of equipment for the device control automation in general.

Described are high pressure filter housings and apparatuses that are useful to contain a fluid under high pressure, with example housings including first and second pieces having complimentary tapered joint surfaces that can form a fluid-tight seal without a gasket located between the surfaces, and methods of making and using the high pressure filter apparatuses.

The present invention relates to an oil filtration unit (1) for removal of solid contaminants from contaminated oil, the oil filtration unit (1) comprising a housing (2) which comprises a housing inlet (3) adapted to receive contaminated oil from the surroundings and to release the contaminated oil to an inner opening (4) of the housing (2) at a first pressure (p1) and a housing outlet (12) adapted to release filtered oil to the surroundings, and an oil filter (6) for filtering the contaminated oil, the oil filter (6) being arranged in the inner opening (4) of the housing (2) and comprising a filter inlet defined by an outer surface (7) of the oil filter (6), an inner filter volume (8) adapted to receive filtered oil at a second pressure (p2), where the second pressure (p2) is lower than the first pressure (p1), and a filter outlet inside the housing (2) providing fluid/liquid communication between the inner filter volume (8) and the housing outlet (12) in order to release the filtered oil from the inner filter volume (8), where the filter outlet comprises a hydraulic resistance providing a fluid/liquid flow restriction between the inner filter volume (8) and the housing outlet (12) in order to increase the second pressure (p2) inside the inner filter volume (8) and to release the filtered oil from the inner filter volume (8) to the housing outlet (12) at a third pressure (p3), where the third pressure (p3) is lower than the second pressure (p2).

The present invention relates to an oil filtration unit (1) for removal of solid contaminants from contaminated oil, the oil filtration unit (1) comprising a housing (2) which comprises a housing inlet (3) adapted to receive contaminated oil from the surroundings and to release the contaminated oil to an inner opening (4) of the housing (2) at a first pressure (p1) and a housing outlet (12) adapted to release filtered oil to the surroundings, and an oil filter (6) for filtering the contaminated oil, the oil filter (6) being arranged in the inner opening (4) of the housing (2) and comprising a filter inlet defined by an outer surface (7) of the oil filter (6), an inner filter volume (8) adapted to receive filtered oil at a second pressure (p2), where the second pressure (p2) is lower than the first pressure (p1), and a filter outlet inside the housing (2) providing fluid/liquid communication between the inner filter volume (8) and the housing outlet (12) in order to release the filtered oil from the inner filter volume (8), where the filter outlet comprises a hydraulic resistance providing a fluid/liquid flow restriction between the inner filter volume (8) and the housing outlet (12) in order to increase the second pressure (p2) inside the inner filter volume (8) and to release the filtered oil from the inner filter volume (8) to the housing outlet (12) at a third pressure (p3), where the third pressure (p3) is lower than the second pressure (p2).

A filter cartridge for a delivery device for a reducing agent includes at least one filter wall and at least one supporting wall together forming an interior space. The at least one supporting wall has an outflow opening and a bypass opening. The outflow opening can be coupled to the delivery device and the bypass opening bypasses the filter wall. A delivery device and a motor vehicle having a filter cartridge are also provided.

A treatment solution supply apparatus for supplying a treatment solution to a treatment solution discharge unit that discharges the treatment solution to a treatment body, includes: a temporary storage apparatus that temporarily stores the treatment solution supplied from a treatment solution supply source that stores the treatment solution; a filter that removes a foreign substance in the treatment solution from the temporary storage apparatus; and a pump that sends the treatment solution from which the foreign substance has been removed by the filter to the treatment solution discharge unit, wherein the temporary storage apparatus has a pressure-feeding function of pressure-feeding the treatment solution stored in the temporary storage apparatus.

An air filter is provided with a built-in air pressure sensor that enables pressure drop measurement of the filter when installed. The air filter includes a frame structure and a filter media disposed in the frame structure and forming a plurality of V-banks or pockets. A static pressure tip mounted to extend upstream within one of the plurality of V-banks or pockets.

Oil filtration unit for removal of contaminants from oil including a housing with an inlet to receive contaminated oil from surroundings and release oil to an inner opening at a first pressure, an outlet adapted to release filtered oil to surroundings, and an oil filter for filtering oil in the inner opening of the housing. The oil filter includes an inlet with an outer surface, an inner volume to receive filtered oil at a second pressure lower than the first pressure, and an outlet inside the housing providing fluid/liquid communication between the inner volume and the housing outlet. The filter outlet includes a hydraulic resistance providing a fluid/liquid flow restriction between the inner volume and the housing outlet to increase the second pressure inside the inner filter volume and release the oil from the inner filter volume to the housing outlet at a third pressure lower than the second pressure.