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公开(公告)号：US20180051813A1
公开(公告)日：2018-02-22
申请号：US15557959
申请日：2016-03-10
Applicant: VAT Holding AG
Inventor： Klaus Albrecht
CPC classification number: F16K3/0236 , F16K1/12 , F16K3/0263 , F16K3/029 , F16K3/04 , F16K3/06 , F16K3/12 , F16K3/18 , F16K3/188 , F16K25/005 , F16K51/02
Abstract: A valve (1), in particular a vacuum valve, having at least one valve housing (2), at least one closure element (3), and at least one valve seat (4). The valve seat (4) surrounds at least one valve opening (5) of the valve (1), and the closure element (3) can be moved back and forth between at least one open position, in which the closure element (3) at least partly releases the valve opening (5), and a closed position, in which a sealing surface (8) of the closure element (3) is pressed against the valve seat (4) in order to close the valve opening (5), by at least one closure element drive (6, 7). At least one surface (9) of the valve (1) has an average surface roughness RZ less than or equal to 0.4 um, preferably less than or equal to 0.25 um.
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公开(公告)号：US10364899B2
公开(公告)日：2019-07-30
申请号：US15557959
申请日：2016-03-10
Applicant: VAT Holding AG
Inventor： Klaus Albrecht
Abstract: A valve (1), in particular a vacuum valve, having at least one valve housing (2), at least one closure element (3), and at least one valve seat (4). The valve seat (4) surrounds at least one valve opening (5) of the valve (1), and the closure element (3) can be moved back and forth between at least one open position, in which the closure element (3) at least partly releases the valve opening (5), and a closed position, in which a sealing surface (8) of the closure element (3) is pressed against the valve seat (4) in order to close the valve opening (5), by at least one closure element drive (6, 7). At least one surface (9) of the valve (1) has an average surface roughness RZ less than or equal to 0.4 um, preferably less than or equal to 0.25 um.
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