发明名称 VALVE SEAL WITH PRESSURE RELIEF CHANNELS AND EXPANSION VOIDS
摘要 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.
申请公布号 WO2005017397(A3) 申请公布日期 2005.07.14
申请号 WO2004US23549 申请日期 2004.07.21
申请人 VICTAULIC COMPANY OF AMERICA;BANCROFT, PHILIP, W.;WESTON, RICHARD, R.;WORTMANN, STEVEN, A. 发明人 BANCROFT, PHILIP, W.;WESTON, RICHARD, R.;WORTMANN, STEVEN, A.
分类号 F16J15/16;F16K1/226 主分类号 F16J15/16
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