IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0333139
(2014-07-16)
|
등록번호 |
US-9416879
(2016-08-16)
|
우선권정보 |
DE-10 2012 107 992 (2012-08-29) |
발명자
/ 주소 |
- Fath, Matthias
- Stark, Heiko
- Neuhauser, Frank
|
출원인 / 주소 |
|
대리인 / 주소 |
ST Onge Steward Johnston and Reens LLC
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
7 |
초록
▼
An aseptic double seat valve has a housing, which has connections for two pipe conduits. A first valve seat and a second valve seat are arranged spaced apart from one another in the direction of a longitudinal axis in the housing between the connections for the two pipe conduits. A first closing bod
An aseptic double seat valve has a housing, which has connections for two pipe conduits. A first valve seat and a second valve seat are arranged spaced apart from one another in the direction of a longitudinal axis in the housing between the connections for the two pipe conduits. A first closing body interacts in a sealing manner with the first valve seat, and a second closing body interacts in a sealing manner with the second valve seat. A first elongate valve stem, which is of hollow design is connected to the first closing body, and a second elongate valve stem, which extends through the interior of the first valve stem, is connected to the second closing body. A diaphragm, which has a radially inner opening, serves to seal off a gap present between the first valve stem and the second valve stem. An outer rim of the diaphragm is fixed in a sealing manner on the second closing body, and the inner rim of the diaphragm is fixed in a sealing manner on the first valve stem.
대표청구항
▼
1. An aseptic double seat valve, comprising: a housing, which has connections for two pipe conduits,a first valve seat and a second valve seat, the first and second valve seats arranged spaced apart from one another in direction of a longitudinal axis in the housing and between the connections for t
1. An aseptic double seat valve, comprising: a housing, which has connections for two pipe conduits,a first valve seat and a second valve seat, the first and second valve seats arranged spaced apart from one another in direction of a longitudinal axis in the housing and between the connections for the two pipe conduits,a first closing body which interacts in a sealing manner with the first valve seat,a second closing body which interacts in a sealing manner with the second valve seat,a first elongate valve stem connected to the first closing body and having a hollow interior,a second elongate valve stem extending through the interior of the first valve stem and connected to the second closing body,a diaphragm having a radially inner opening and serves to seal off a gap between the first valve stem and the second valve stem,an outer rim of the diaphragm being fixed in a sealing manner on the second closing body,an inner rim of the diaphragm being fixed in a sealing manner on the first valve stem at a distance from the first closing body. 2. An aseptic double seat valve, comprising: a housing, which has connections for two pipe conduits,a first valve seat and a second valve seat, the first and second valve seats arranged spaced apart from one another in direction of a longitudinal axis in the housing and between the connections for the two pipe conduits,a first closing body which interacts in a sealing manner with the first valve seat,a second closing body which interacts in a sealing manner with the second valve seat,a first elongate valve stem connected to the first closing body and having a hollow interior,a second elongate valve stem extending through the interior of the first valve stem and connected to the second closing body,a diaphragm having a radially inner opening and serves to seal off a gap between the first valve stem and the second valve stem,an outer rim of the diaphragm being fixed in a sealing manner on the second closing body, andan inner rim of the diaphragm being fixed in a sealing manner on the first valve stem at a distance from the first closing body,wherein the first valve stem has a hollow extension extending from the first closing body towards the second closing body and is releasably connected to the first closing body, an end of the second valve stem which faces the second closing body extending through the extension, the inner rim of the diaphragm being fixed in a sealing manner on the extension. 3. The double seat valve of claim 2, wherein the extension has two sleeve-shaped sections, which are connected releasably to one another, the inner rim of the diaphragm being clamped between the two sleeve-shaped sections. 4. The double seat valve of claim 2, wherein, on a side of the first closing body which faces the second closing body, the extension has a disc, an outer rim of the disc resting in a sealing manner against a side of the first closing body which faces the second closing body, in interaction with a sealing element of the first closing body. 5. The double seat valve of claim 4, wherein there is a gap for leakage monitoring between the disc and the first closing body, which gap for leakage monitoring communicates with the gap between the first and the second valve stem. 6. An aseptic double seat valve, comprising: a housing, which has connections for two pipe conduits,a first valve seat and a second valve seat, the first and second valve seats arranged spaced apart from one another in direction of a longitudinal axis in the housing and between the connections for the two pipe conduits,a first closing body which interacts in a sealing manner with the first valve seat,a second closing body which interacts in a sealing manner with the second valve seat,a first elongate valve stem connected to the first closing body and having a hollow interior,a second elongate valve stem extending through the interior of the first valve stem and connected to the second closing body,a diaphragm having a radially inner opening and serves to seal off a gap between the first valve stem and the second valve stem,an outer rim of the diaphragm being fixed in a sealing manner on the second closing body, andan inner rim of the diaphragm being fixed in a sealing manner on the first valve stem at a distance from the first closing body,wherein the second closing body is in the form of a cup, an open side of the cup facing away from the first closing body, and a base of the cup facing the first closing body and having a radially inner opening, the first valve stem projecting into the radially inner opening of the base, an outer rim of the cup interacting in a sealing manner with the second valve seat, the outer rim of the diaphragm being clamped between a rim of the radially inner opening of the base of the cup and a counter holder connected releasably to the cup. 7. The double seat valve of claim 6, further comprising a removable cap closing the open side of the cup in a sealed manner, an outer rim of the cap resting in a sealing manner against the outer rim of the cup in interaction with a sealing element of the second closing body. 8. The double seat valve of claim 6, wherein an interior of the cup communicates with the gap between the first and the second valve stem. 9. The double seat valve of claim 2, wherein the extension, the second closing body, a counter holder and the diaphragm fixed between the second closing body and the extension form a cartridge which can be preassembled and can be exchangeable as a whole. 10. The double seat valve of claim 9, wherein the extension is screwed to the first closing body. 11. The double seat valve of claim 9, wherein the exchangeable cartridge is replaceable with a replacement cartridge having a seal designed as a corrugated bellows for the purpose of sealing off the gap between the first valve stem and the second valve stem. 12. The double seat valve of claim 1, wherein at least one of the first valve seat and the second valve seat are axial-radial valve seats.
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