公开(公告)号：US11079034B2

公开(公告)日：2021-08-03

申请号：US16346465

申请日：2017-11-03

申请人： Franz Schuck GmbH

发明人： Elmar Mentzel

IPC分类号： F16K27/02 ,  F16K5/06 ,  F04B53/12 ,  F16K5/20 ,  F16K15/04

摘要： The invention relates to a ball valve (1) for a pipe system for conveying liquid or gaseous media, comprising a housing (3), which has a ball plug (4) and seat rings (5, 6). A hydraulic system (7), which is independent of the pressure of the liquid or gaseous medium flowing through the pipe system, is provided for changing the contact pressure of at least one of the seat rings (5, 6) against the ball plug (4).

公开(公告)号：US20200056716A1

公开(公告)日：2020-02-20

申请号：US16346465

申请日：2017-11-03

申请人： Franz Schuck GmbH

发明人： Elmar Mentzel

IPC分类号： F16K27/02 ,  F16K5/06

摘要： The invention relates to a ball valve (1) for a pipe system for conveying liquid or gaseous media, comprising a housing (3), which has a ball plug (4) and seat rings (5, 6). A hydraulic system (7), which is independent of the pressure of the liquid or gaseous medium flowing through the pipe system, is provided for changing the contact pressure of at least one of the seat rings (5, 6) against the ball plug (4).