JP2006181469A - Water purifying cartridge - Google Patents

Water purifying cartridge Download PDF

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JP2006181469A
JP2006181469A JP2004377320A JP2004377320A JP2006181469A JP 2006181469 A JP2006181469 A JP 2006181469A JP 2004377320 A JP2004377320 A JP 2004377320A JP 2004377320 A JP2004377320 A JP 2004377320A JP 2006181469 A JP2006181469 A JP 2006181469A
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hollow fiber
fiber membrane
prefilter
membrane bundle
case
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JP4511921B2 (en
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Yoshitaka Kobayashi
義孝 小林
Masakazu Kitagawa
雅一 北川
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Kurita Creation Co Ltd
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Kurita Creation Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a water purifying cartridge having a simple structure and allowing the possibility of incurring a fall in filtration efficiency to be suppressed. <P>SOLUTION: A hollow fiber membrane module 11 is configured by a bundle of hollow fiber membranes 13 and a case 14. A pre-filter unit 12 is configured by a pre-filter member 17 and a support 18. The bottom plate part 14a of a closed-end cylindrical case 14 includes a threaded hole 25. The support 18 is configured by a cap part 18a abutting on the end face of the pre-filter member 17 and a support rod part 18b inserted into the hollow part 17a of the pre-filter member 17, and provides a thread part 24 at the tip end of the support rod part 18b. By screwing the thread part 24 on the threaded hole 25, the hollow fiber membrane module 11 and the pre-filter unit 12 are connectedly fixed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

この発明は、例えば家庭用の浄水器等に組み込まれる浄水カートリッジに関するものである。   The present invention relates to a water purification cartridge incorporated into, for example, a household water purifier.

従来、この種の浄水カートリッジとしては、例えば図４に示すような構成のものが知られている。この従来の浄水カートリッジには、中空糸膜束モジュール３１とプレフィルタユニット３２とが装備されている。中空糸膜束モジュール３１は、中空糸膜束３３とその中空糸膜束３３を収容する円筒状のケース３４とから構成されている。プレフィルタユニット３２は、円筒状の活性炭よりなるプレフィルタ部材３５とそのプレフィルタ部材３５の両端面に接着剤にて固定されたキャップ３６及び接続部材３７とから構成されている。そして、ケース３４の端部に接続部材３７が嵌着されることにより、中空糸膜束モジュール３１とプレフィルタユニット３２とが連接固定されている。   Conventionally, as this type of water purification cartridge, for example, one having a structure as shown in FIG. 4 is known. This conventional water purification cartridge is equipped with a hollow fiber membrane bundle module 31 and a prefilter unit 32. The hollow fiber membrane bundle module 31 includes a hollow fiber membrane bundle 33 and a cylindrical case 34 that accommodates the hollow fiber membrane bundle 33. The prefilter unit 32 includes a prefilter member 35 made of cylindrical activated carbon, and a cap 36 and a connection member 37 fixed to both end faces of the prefilter member 35 with an adhesive. The hollow fiber membrane bundle module 31 and the pre-filter unit 32 are connected and fixed by fitting the connection member 37 to the end of the case 34.

しかしながら、この従来構成においては、プレフィルタ部材３５が両端からキャップ３６及び接続部材３７により挟着保持されているのみで、軸線方向には保持されていない。そのため、この浄水カートリッジを浄水器の本体内等に組み込む際に、プレフィルタ部材３５に軸線方向への荷重が加わると、プレフィルタ部材３５が座屈するという問題があった。また、接着剤を使用してプレフィルタ部材３５の両端面にキャップ３６及び接続部材３７が接着固定されているため、プレフィルタ部材３５の両端面付近に接着剤が浸透して、その接着剤浸透部分は濾過機能が低下または消滅して、プレフィルタ部材３５の濾過効率が低下するという問題もあった。   However, in this conventional configuration, the pre-filter member 35 is only sandwiched and held by the cap 36 and the connection member 37 from both ends, and is not held in the axial direction. Therefore, when this water purification cartridge is incorporated in the main body of the water purifier or the like, there is a problem that the prefilter member 35 is buckled when a load in the axial direction is applied to the prefilter member 35. Further, since the cap 36 and the connection member 37 are bonded and fixed to both end faces of the prefilter member 35 using an adhesive, the adhesive permeates near the both end faces of the prefilter member 35, and the adhesive penetration There is also a problem that the filtration function of the portion is reduced or eliminated, and the filtration efficiency of the pre-filter member 35 is lowered.

このような問題点に対処するため、例えば、特許文献１に開示されるような構成の浄水カートリッジも従来から提案されている。この従来構成においては、図５に示すように、前記図４の従来構成とほぼ同様で、中空糸膜束モジュール３１が中空糸膜束３３とケース３４とから構成されるとともに、プレフィルタユニット３２がプレフィルタ部材３５とキャップ３６と接続部材３７とから構成されている。   In order to cope with such a problem, for example, a water purification cartridge having a configuration as disclosed in Patent Document 1 has also been proposed. In this conventional configuration, as shown in FIG. 5, the hollow fiber membrane bundle module 31 is composed of a hollow fiber membrane bundle 33 and a case 34, and is similar to the conventional configuration of FIG. Is composed of a prefilter member 35, a cap 36 and a connecting member 37.

また、前記キャップ３６の内面中央には、プレフィルタ部材３５の中空部に一端側から挿通可能な支柱部３８が突設されている。接続部材３７の内面中央には、プレフィルタ部材３５の中空部に他端側から挿通可能な筒状部３９が突設されている。そして、支柱部３８の先端が筒状部３９に嵌合されることにより、プレフィルタ部材３５の両端にキャップ３６及び接続部材３７が接合固定されている。さらに、接続部材３７の端部には爪部４０が形成されるとともに、ケース３４の外周には係止突起４１が形成されている。そして、この爪部４０が係止突起４１に係合されることにより、中空糸膜束モジュール３１とプレフィルタユニット３２とが着脱可能に連結されている。
特開２００４−２６７８３９号公報 Further, a column portion 38 that protrudes from one end into the hollow portion of the pre-filter member 35 is projected from the center of the inner surface of the cap 36. At the center of the inner surface of the connection member 37, a cylindrical portion 39 that can be inserted into the hollow portion of the pre-filter member 35 from the other end side protrudes. Then, the cap 36 and the connecting member 37 are bonded and fixed to both ends of the pre-filter member 35 by fitting the front end of the column portion 38 to the cylindrical portion 39. Further, a claw portion 40 is formed at the end of the connection member 37, and a locking projection 41 is formed on the outer periphery of the case 34. The hollow fiber membrane bundle module 31 and the prefilter unit 32 are detachably connected by engaging the claw portion 40 with the locking projection 41.
JP 2004-267839 A

ところが、この従来の浄水カートリッジにおいては、筒状部３９に対する支柱部３８の嵌合のみでは、プレフィルタ部材３５の両端にキャップ３６及び接続部材３７を堅固に接合固定することができない。よって、この場合にも前述した図４の従来構成と同様に、接着剤を用いてキャップ３６及び接続部材３７をプレフィルタ部材３５の両端に接着固定する必要があって、プレフィルタ部材３５の濾過効率の低下を招くという問題が残った。   However, in this conventional water purification cartridge, the cap 36 and the connecting member 37 cannot be firmly fixed to both ends of the pre-filter member 35 only by fitting the column portion 38 to the cylindrical portion 39. Therefore, in this case as well, the cap 36 and the connecting member 37 need to be bonded and fixed to both ends of the prefilter member 35 using an adhesive as in the conventional configuration of FIG. The problem of reducing efficiency remained.

また、中空糸膜束モジュール３１及びプレフィルタユニット３２が、接続部材３７を介装した状態で、介装及び爪部４０と係止突起４１との係合により着脱可能に連結されている。このため、構造が複雑で部品点数が多くなるという問題もあった。   Further, the hollow fiber membrane bundle module 31 and the pre-filter unit 32 are detachably coupled by the engagement of the interposition and the claw portion 40 and the locking projection 41 with the connection member 37 interposed. Therefore, there is a problem that the structure is complicated and the number of parts is increased.

この発明は、このような従来の技術に存在する問題点に着目してなされたものである。その目的は、構造が簡単で部品点数を削減することができるとともに、プレフィルタ部材の濾過効率の低下を招くおそれを抑制することができる浄水カートリッジを提供することにある。   The present invention has been made paying attention to such problems existing in the prior art. An object of the present invention is to provide a water purification cartridge that has a simple structure, can reduce the number of parts, and can suppress the risk of reducing the filtration efficiency of the prefilter member.

上記の目的を達成するために、請求項１に記載の発明は、中空糸膜束及びその中空糸膜束を収容するケースからなる中空糸膜束モジュールと、筒状のプレフィルタ部材及びそのプレフィルタ部材を保持する保持体からなるプレフィルタユニットとを備えた浄水カートリッジにおいて、前記ケースを有底筒状に形成するとともに、その底板部にはネジ孔を設け、前記保持体をプレフィルタ部材の端面に当接されるキャップ部とプレフィルタ部材の中空部に挿通される支柱部とから構成するとともに、支柱部の先端にはネジ部を設け、そのネジ部をネジ孔に螺合することにより、中空糸膜束モジュールとプレフィルタユニットとを連接固定したことを特徴とするものである。   In order to achieve the above-mentioned object, the invention described in claim 1 includes a hollow fiber membrane bundle module comprising a hollow fiber membrane bundle and a case for accommodating the hollow fiber membrane bundle, a cylindrical prefilter member, and a prefilter member thereof. In a water purification cartridge comprising a prefilter unit comprising a holding body for holding a filter member, the case is formed in a bottomed cylindrical shape, a screw hole is provided in a bottom plate portion thereof, and the holding body is attached to the prefilter member. It is composed of a cap part that is in contact with the end face and a support part inserted through the hollow part of the prefilter member, and a screw part is provided at the tip of the support part, and the screw part is screwed into the screw hole. The hollow fiber membrane bundle module and the pre-filter unit are connected and fixed.

（作用）
請求項１に記載の発明においては、組み付け時にネジ部をネジ孔に螺合させることにより、接続部材を介装することなく、中空糸膜束モジュールとプレフィルタユニットとを直接的に連接固定することができる。そして、この状態ではプレフィルタ部材がケースの底板部と保持体のキャップ部との間で挟着保持されるため、従来構成に比較して構造が簡単で部品点数を削減することができる。また、プレフィルタ部材の固定に接着剤を使用していないため、プレフィルタ部材の濾過効率が低下するおそれを抑制することもできる。 (Function)
In the first aspect of the present invention, the hollow fiber membrane bundle module and the prefilter unit are directly connected and fixed without interposing a connecting member by screwing the screw portion into the screw hole at the time of assembly. be able to. In this state, since the prefilter member is sandwiched and held between the bottom plate portion of the case and the cap portion of the holding body, the structure is simple and the number of parts can be reduced as compared with the conventional configuration. In addition, since no adhesive is used to fix the prefilter member, it is possible to suppress the possibility that the filtration efficiency of the prefilter member is reduced.

以上のように、この発明によれば、構造が簡単で部品点数を削減することができるとともに、プレフィルタ部材の濾過効率の低下を招くおそれを抑制することができる。   As described above, according to the present invention, the structure is simple and the number of parts can be reduced, and the risk of reducing the filtration efficiency of the prefilter member can be suppressed.

以下に、この発明の一実施形態を、図１〜図３に基づいて説明する。
図１に示すように、この実施形態の浄水カートリッジは、中空糸膜束モジュール１１とプレフィルタユニット１２とを備えている。中空糸膜束モジュール１１は、中空糸膜束１３と、その中空糸膜束１３を収容する有底円筒状のケース１４とから構成されている。中空糸膜束１３はＵ字状に折り曲げられた多数の中空糸膜１３ａからなり、ポッティング部材１５に両端部において吊下固定されるとともに、不織布１６にて被覆されている。なお、中空糸膜束１３は、その両端部がポッティング部材１５に埋設固定されているが、両端開口はポッティング部材１５の外方（図１の上方）に向かって開放され、この両端開口から浄水が吐出される。 Below, one Embodiment of this invention is described based on FIGS. 1-3.
As shown in FIG. 1, the water purification cartridge of this embodiment includes a hollow fiber membrane bundle module 11 and a prefilter unit 12. The hollow fiber membrane bundle module 11 includes a hollow fiber membrane bundle 13 and a bottomed cylindrical case 14 that accommodates the hollow fiber membrane bundle 13. The hollow fiber membrane bundle 13 is composed of a number of hollow fiber membranes 13a bent in a U shape, and is suspended and fixed to the potting member 15 at both ends and covered with a nonwoven fabric 16. Both ends of the hollow fiber membrane bundle 13 are embedded and fixed in the potting member 15, but both end openings are opened toward the outside of the potting member 15 (upward in FIG. 1). Is discharged.

図１及び図２に示すように、前記プレフィルタユニット１２は、円筒状のプレフィルタ部材１７と、そのプレフィルタ部材１７を保持する保持体１８とから構成されている。プレフィルタ部材１７は、両端を開放した通水ケース内に粒状活性炭を充填したもの、繊維状活性炭を充填したもの、あるいは全体として多孔質をなすように活性炭を固形化したもの等、各種のものが採用される。保持体１８は、プレフィルタ部材１７の端面に当接されるキャップ部１８ａと、プレフィルタ部材１７の中空部１７ａに挿通される支柱部１８ｂとから構成されている。支柱部１８ｂの外周には、複数のリブ１９が所定間隔おきに突設されている。そして、支柱部１８ｂがプレフィルタ部材１７の中空部１７ａに挿通された状態で、これらのリブ１９間に軸線方向に延びる導通路２０が形成されるようになっている。   As shown in FIGS. 1 and 2, the prefilter unit 12 includes a cylindrical prefilter member 17 and a holding body 18 that holds the prefilter member 17. The pre-filter member 17 is of various types, such as a case in which granular activated carbon is filled in a water flow case with both ends open, a case in which fibrous activated carbon is filled, or a case in which activated carbon is solidified so as to be porous as a whole. Is adopted. The holding body 18 includes a cap portion 18 a that is in contact with the end face of the prefilter member 17 and a support column portion 18 b that is inserted through the hollow portion 17 a of the prefilter member 17. A plurality of ribs 19 project from the outer periphery of the column 18b at predetermined intervals. In the state where the column portion 18 b is inserted into the hollow portion 17 a of the pre-filter member 17, a conduction path 20 extending in the axial direction is formed between the ribs 19.

図１及び図３に示すように、前記中空糸膜束モジュール１１側におけるケース１４の底板部１４ａの内面中央にはボス部２１が突設されている。ボス部２１の外周面とケース１４の内周面との間には、複数のリブ２２が所定間隔おきに形成されている。ボス部２１の外周に沿って配列されるように、底板部１４ａには導通路２０に連通する複数の貫通孔２３が形成されている。   As shown in FIGS. 1 and 3, a boss portion 21 protrudes from the center of the inner surface of the bottom plate portion 14 a of the case 14 on the hollow fiber membrane bundle module 11 side. A plurality of ribs 22 are formed at predetermined intervals between the outer peripheral surface of the boss portion 21 and the inner peripheral surface of the case 14. A plurality of through holes 23 communicating with the conduction path 20 are formed in the bottom plate portion 14 a so as to be arranged along the outer periphery of the boss portion 21.

前記プレフィルタユニット１２側における保持体１８の支柱部１８ｂの先端には、ネジ部２４が形成されている。中空糸膜束モジュール１１側におけるケース１４の底板部１４ａ上のボス部２１内にはネジ孔２５が形成されている。そして、このネジ部２４がネジ孔２５に螺合されることにより、中空糸膜束モジュール１１とプレフィルタユニット１２とが連接固定されている。この状態で、プレフィルタ部材１７が保持体１８のキャップ部１８ａとケース１４の底板部１４ａとの間に挟着保持されるようになっている。   A screw portion 24 is formed at the tip of the support column 18b of the holding body 18 on the pre-filter unit 12 side. A screw hole 25 is formed in the boss portion 21 on the bottom plate portion 14a of the case 14 on the hollow fiber membrane bundle module 11 side. The thread portion 24 is screwed into the screw hole 25, so that the hollow fiber membrane bundle module 11 and the prefilter unit 12 are connected and fixed. In this state, the prefilter member 17 is sandwiched and held between the cap portion 18 a of the holding body 18 and the bottom plate portion 14 a of the case 14.

次に、前記のように構成された浄水カートリッジの作用を説明する。
さて、この浄水カートリッジが浄水器等に組み込まれた使用状態においては、図１に矢印で示すように、水がプレフィルタユニット１２のプレフィルタ部材１７の外周から中空部１７ａ内に流入して、そのプレフィルタ部材１７により水に含まれるカルキ等が濾過される。その後、水が導通路２０内から貫通孔２３を介して、中空糸膜束モジュール１１のケース１４内に流れるとともに、中空糸膜束１３を通過してケース１４外に流出し、その中空糸膜束１３によって水に含まれる雑菌等が濾過される。 Next, the operation of the water purification cartridge configured as described above will be described.
Now, in a use state in which this water purification cartridge is incorporated in a water purifier or the like, as shown by an arrow in FIG. 1, water flows into the hollow portion 17a from the outer periphery of the prefilter member 17 of the prefilter unit 12, The pre-filter member 17 filters the chlorine and the like contained in the water. Thereafter, water flows from the inside of the conduction path 20 into the case 14 of the hollow fiber membrane bundle module 11 through the through hole 23, passes through the hollow fiber membrane bundle 13, and flows out of the case 14. The bacteria 13 contained in the water are filtered by the bundle 13.

以上のように、この実施形態の浄水カートリッジにおいては、中空糸膜束モジュール１１とプレフィルタユニット１２との組み付け時に、ネジ部２４をネジ孔２５に螺合させることにより、プレフィルタ部材１７をケース１４の底板部１４ａと保持体１８のキャップ部１８ａとの間で挟着保持することができる。よって、従来構成とは異なり、接続部材を介して中空糸膜束モジュールとプレフィルタユニットとを連接固定する必要がなく、構造が簡単で部品点数を削減することができる。   As described above, in the water purification cartridge of this embodiment, the screw part 24 is screwed into the screw hole 25 when the hollow fiber membrane bundle module 11 and the prefilter unit 12 are assembled, whereby the prefilter member 17 is attached to the case. 14 can be held between the bottom plate portion 14 a and the cap portion 18 a of the holding body 18. Therefore, unlike the conventional configuration, it is not necessary to connect and fix the hollow fiber membrane bundle module and the pre-filter unit via the connecting member, and the structure is simple and the number of parts can be reduced.

また、この実施形態の浄水カートリッジでは、ネジ部２４とネジ孔２５との螺合により、プレフィルタ部材１７が底板部１４ａとキャップ部１８ａとの間で堅固に挟着保持されるため、プレフィルタ部材１７の固定に接着剤を使用する必要がない。このため、従来構成とは異なり、プレフィルタ部材の両端面に接着剤が浸透することにより、プレフィルタ部材の濾過効率が低下するおそれを抑制することもできる。
（変更例）
なお、この実施形態は、次のように変更して具体化することも可能である。 In the water purification cartridge of this embodiment, the prefilter member 17 is firmly held between the bottom plate portion 14a and the cap portion 18a by screwing the screw portion 24 and the screw hole 25. It is not necessary to use an adhesive to fix the member 17. For this reason, unlike the conventional configuration, it is also possible to suppress the possibility that the filtration efficiency of the prefilter member is reduced due to the penetration of the adhesive into the both end faces of the prefilter member.
(Example of change)
In addition, this embodiment can also be changed and embodied as follows.

・ 前記実施形態において、ネジ部２４をネジ孔２５に螺合させた後、その螺合部を接着剤により接着固定するように構成すること。
・ 前記実施形態において、プレフィルタ部材１７として、活性炭以外のもの、例えば、セラミックフィルタ，布フィルタ等を用いること。 In the embodiment, the screw portion 24 is screwed into the screw hole 25, and then the screwed portion is bonded and fixed with an adhesive.
-In the said embodiment, things other than activated carbon, for example, a ceramic filter, a cloth filter, etc. are used as the pre-filter member 17. FIG.

一実施形態の浄水カートリッジを示す断面図。Sectional drawing which shows the water purification cartridge of one Embodiment. 図１の２−２線における拡大断面図。The expanded sectional view in the 2-2 line of FIG. 図１の３−３線における拡大断面図。The expanded sectional view in the 3-3 line of FIG. 従来の浄水カートリッジを示す断面図。Sectional drawing which shows the conventional water purification cartridge. 従来の別構成の浄水カートリッジを示す断面図。Sectional drawing which shows the conventional water purification cartridge of another structure.

符号の説明Explanation of symbols

１１…中空糸膜束モジュール、１２…プレフィルタユニット、１３…中空糸膜束、１４…ケース、１４ａ…底板部、１７…プレフィルタ部材、１７ａ…中空部、１８…保持体、１８ａ…キャップ部、１８ｂ…支柱部、２１…ボス部、２４…ネジ部、２５…ネジ孔。   DESCRIPTION OF SYMBOLS 11 ... Hollow fiber membrane bundle module, 12 ... Pre filter unit, 13 ... Hollow fiber membrane bundle, 14 ... Case, 14a ... Bottom plate part, 17 ... Pre filter member, 17a ... Hollow part, 18 ... Holding body, 18a ... Cap part , 18b: support column, 21: boss, 24 ... screw, 25 ... screw hole.

Claims (1)

中空糸膜束及びその中空糸膜束を収容するケースからなる中空糸膜束モジュールと、筒状のプレフィルタ及びそのプレフィルタを保持する保持体からなるプレフィルタユニットとを備えた浄水カートリッジにおいて、
前記ケースを有底筒状に形成するとともに、その底板部にはネジ孔を設け、前記保持体をプレフィルタ部材の端面に当接されるキャップ部とプレフィルタ部材の中空部に挿通される支柱部とから構成するとともに、支柱部の先端にはネジ部を設け、そのネジ部をネジ孔に螺合することにより、中空糸膜束モジュールとプレフィルタユニットとを連接固定したことを特徴とする浄水カートリッジ。 In a water purification cartridge comprising a hollow fiber membrane bundle and a hollow fiber membrane bundle module comprising a case for housing the hollow fiber membrane bundle, and a prefilter unit comprising a cylindrical prefilter and a holder for holding the prefilter,
The case is formed in a bottomed cylindrical shape, and a screw hole is provided in the bottom plate portion thereof, and the support body is inserted into the cap portion that contacts the end surface of the prefilter member and the hollow portion of the prefilter member. The hollow fiber membrane bundle module and the pre-filter unit are connected and fixed by providing a screw part at the tip of the support part and screwing the screw part into the screw hole. Water purification cartridge.
JP2004377320A 2004-12-27 2004-12-27 Water purification cartridge Expired - Fee Related JP4511921B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011050880A (en) * 2009-09-02 2011-03-17 Inax Corp Water purifier
WO2019101541A1 (en) * 2017-11-27 2019-05-31 Sartorius Stedim Biotech Gmbh Disposable device for filtering a large medium volume

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0217229U (en) * 1988-07-21 1990-02-05
JPH08309388A (en) * 1995-05-18 1996-11-26 Kurita Water Ind Ltd Nitrating device
JP2000288314A (en) * 1999-04-02 2000-10-17 Osaka Gas Co Ltd Water purifying filter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0217229U (en) * 1988-07-21 1990-02-05
JPH08309388A (en) * 1995-05-18 1996-11-26 Kurita Water Ind Ltd Nitrating device
JP2000288314A (en) * 1999-04-02 2000-10-17 Osaka Gas Co Ltd Water purifying filter

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011050880A (en) * 2009-09-02 2011-03-17 Inax Corp Water purifier
WO2019101541A1 (en) * 2017-11-27 2019-05-31 Sartorius Stedim Biotech Gmbh Disposable device for filtering a large medium volume
CN111405938A (en) * 2017-11-27 2020-07-10 赛多利斯司特蒂姆生物工艺公司 Disposable device for filtering large media volumes
KR20200089313A (en) * 2017-11-27 2020-07-24 사토리우스 스테딤 바이오테크 게엠베하 Disposable device for filtering large volume medium
KR102524254B1 (en) * 2017-11-27 2023-04-24 사토리우스 스테딤 바이오테크 게엠베하 Disposable device for filtering large volumes of medium
US11633697B2 (en) 2017-11-27 2023-04-25 Sartorius Stedim Biotech Gmbh Disposable device for filtering a large medium volume

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