Provided are a central tube for a filter cartridge and a filter device having same. The central tube (100) comprises a first half tube (1), a second half tube (2) and a membrane element (3), wherein the first half tube (1) has a first mating surface, and the first mating surface is grooved to form a first flow channel (111); the second half tube (2) has a second mating surface, the second mating surface is grooved to form a second flow channel (21), and the first half tube (1) and the second half tube (2) are butt-jointed to form a hollow, straight tube shape; and the membrane element (3) is arranged between the first half tube (1) and the second half tube (2) and seals the first flow channel (111) and the second flow channel (21), respectively.

A filtration arrangement for a filtration device having a container is provided. The filtration arrangement includes at least two hollow shafts rotatably mounted in a machine frame and on which a plurality of membrane filter disks are arranged. The at least one or the plurality of hollow shafts being assigned at least one drive device, the discharge of permeate from the container being possible through the hollow shafts, and it being possible to insert each hollow shaft at one of its ends with the plurality of membrane filter disks into the container, such that its opposite end projects out of the container. A rotatable pump disk, which forms part of a centrifugal pump arrangement for pumping permeate, is arranged or formed at the opposite end of each rotatable hollow shaft.

A humidifier has a stack unit having a plurality of water-vapor-permeable membranes which are arranged parallel one above the other and spaced apart from one another. The membranes are enclosed at the edges at least in sections by an enclosing part, wherein the enclosing parts of membranes lying one above the other are directly connected to one another in a flow-tight manner.

An in vitro release testing (IVRT) device for orally inhaled drug products, for use in an IVRT apparatus, the device having an air-permeable filter loaded with particulate material representing a dose of an orally inhaled drug product. The device has an upper filter support element and a lower filter support element, the loaded filter being circumferentially retained between the upper and lower support elements, a filter cover to cover the upper surface of the loaded filter, and a filter cover retainer provided to assemble and seal the IVRT device.

A hollow-fiber membrane module according to an embodiment of the present disclosure includes a rectangular tubular outer casing with at least one sidewall being open, the outer casing having a plurality of open ports, and an inner casing configured such that a plurality of hollow-fiber membranes aligned in a longitudinal direction of the outer casing are placeable in the inner casing and configured to be insertable into the one sidewall.

A membrane assembly includes a membrane film, and a plurality of tensile support members. The membrane film is configured to transfer heat and moisture between a liquid and air flowing through a LAMEE. The tensile support members are connected to the membrane or a substrate connected to the membrane. And, the tensile support members are in spaced relation to 5 one another and oriented perpendicular to a direction of flow of liquid through the LAMEE.

The present disclosure provides apparatus and methods for processing liquids or fluids. Such apparatus and methods are convenient and efficient for low-cost separation, filtration, capture, collection, and/or storage of biologics and related materials. Provided apparatus and methods are designed for point-of-care use and offer advantages for patients and medical practitioners, including advantages in diagnosis and long-term monitoring of conditions.

A potting material for membrane modules which is formed of an epoxy resin composition, in which the mass change ratio of a cured product of the epoxy resin composition after being immersed in diethylene glycol methyl ethyl ether at 40? C. for one week is ?10% or less, and the mass change ratio thereof after being immersed in tetrahydrofurfuryl acrylate at 40? C. for one week is ?5% or less, and a hollow fiber membrane module which uses the potting material for membrane modules.

The present invention relates to a separation membrane module including: a pressure vessel; a plurality of separation membrane elements which are provided in the pressure vessel and each includes: a wound membrane body in which a separation membrane, a liquid-to-be-treated channel member and a permeated liquid channel member are spirally wound around a permeated liquid collection tube; and anti-telescoping plates disposed on both ends of the wound membrane body; and a thrust load holding member which holds a thrust load generated when water passes through the separation membrane elements, in which a thrust load adjustment holding member which is capable of adjusting the thrust load by adjusting a total length of the separation membrane elements in the pressure vessel, is provided on at least one end of the thrust load holding member in an axial direction of the separation membrane elements.

A filtration assembly includes a membrane housing and at least one membrane fixture device disposed in the housing. Each membrane fixture device has a plurality of membrane fixture members extending from fixture device inner surface, and each membrane fixture device has membrane openings between the membrane fixture members. The filtration assembly further includes a plurality of ceramic membranes each extending from a first membrane end portion to a second membrane end portion, and each first membrane end portion is disposed in one of the membrane openings, where the membrane fixture members fixture the membranes therein.