公开(公告)号：WO2005017397A2

公开(公告)日：2005-02-24

申请号：PCT/US2004/023549

申请日：2004-07-21

Applicant: VICTAULIC COMPANY OF AMERICA ,  BANCROFT, Philip, W. ,  WESTON, Richard, R. ,  WORTHMANN, Steven, A.

Inventor： BANCROFT, Philip, W. ,  WESTON, Richard, R. ,  WORTHMANN, Steven, A.

IPC: F16K

CPC classification number: F16K1/2261 ,  F16J15/164 ,  F16K1/2263

Abstract: A flexible, resilient incompressible seal for a butterfly valve is disclosed formed from a loop having a perimeter mounting surface and a perimeter sealing surface with first and second oppositely disposed axial surfaces extend between the perimeter sealing and mounting surfaces. Channels are positioned in the axial surfaces in spaced relation around the seal. The channels extend from the perimeter mounting surface toward the perimeter sealing surface and provide fluid communication to the perimeter mounting surface allowing fluid trapped against the perimeter mounting surface to escape when compressed by closing of the valve. A void space is positioned in the perimeter mounting surface in the form of grooves or dimples allowing the perimeter sealing surface to deform under compression when the seal is captured within the valve and substantially restrained from deforming.

Abstract translation: 公开了一种用于蝶形阀的柔性的弹性不可压缩密封件，其由具有周边安装表面和周边密封表面的环形成，第一和第二相对设置的轴向表面在周边密封表面和安装表面之间延伸 。 通道围绕密封件以间隔关系定位在轴向表面中。 通道从周边安装表面朝向周边密封表面延伸并且提供与周边安装表面的流体连通，从而允许在周边安装表面上被封闭时被压缩的流体逸出。 空隙空间以凹槽或凹坑的形式定位在周边安装表面中，从而当密封件被捕获在阀内并且基本上被限制变形时允许周边密封表面在压缩下变形。