Invention Grant
- Patent Title: Double seat valve
- Patent Title (中): 双座阀
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Application No.: US11659108Application Date: 2006-02-18
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Publication No.: US07905253B2Publication Date: 2011-03-15
- Inventor: Jens Burmester , Matthias Südel
- Applicant: Jens Burmester , Matthias Südel
- Applicant Address: DE Büchen
- Assignee: TUCHENHAGEN GmbH
- Current Assignee: TUCHENHAGEN GmbH
- Current Assignee Address: DE Büchen
- Agency: Merek, Blackmon & Voorhees, LLC
- Priority: DE102005054123 20051112; DE102005056624 20051125; DE102005059709 20051212
- International Application: PCT/EP2006/001483 WO 20060218
- International Announcement: WO2007/054131 WO 20070518
- Main IPC: F16K11/20
- IPC: F16K11/20

Abstract:
The invention relates to a double seat valve with cleanable seats, the valve including first and second closing elements (3, 4) and a leakage cavity (5). An intermediate seal (8) seals the closing elements (3, 4) in their opening and closing movements and in the open position against each other, is arranged in the second closing element (4). The second closing element (4) abuts in its closed position at a transition area (2e, 2e*) with a stop face (4e) arranged at a front face of a cylindrical lug (4*) and that directly adjacent to a first seat (2a, 2g), a central recess (4d) is provided in a front face of a second cylindrical lug (4*).
Public/Granted literature
- US20090008594A1 Double seat valve Public/Granted day:2009-01-08
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