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公开(公告)号：US20130327974A1
公开(公告)日：2013-12-12
申请号：US13490073
申请日：2012-06-06
IPC分类号： F16K1/42
CPC分类号： F16K15/03 , E21B34/10 , E21B2033/005 , E21B2034/005 , F16K1/42
摘要： A recess is provided at the periphery of the flapper so that a corner that defines this recess engages an o-ring seal in a seat for the flapper. A reduced contact area of the flapper on the o-ring seal results in increased pressure over the actual contact area. The pressure applied over the contact area also forces a distortion in the o-ring that has a part of the o-ring not restrained due to the presence of the recess moving out of the surrounding o-ring groove so that the corner on the flapper pinches the o-ring that now is partly in and partly extending from its surrounding groove. Sealing is obtained at lower differential pressures and the o-ring is better fixated as a result of the pinch effect of the corner on the flapper.
摘要翻译： 在挡板的周边处设置有凹部，使得限定该凹部的角部与用于挡板的座中的O形环密封接合。 挡板在O形环密封圈上的减小的接触面积导致比实际接触面积增加的压力。 施加在接触区域上的压力也会导致O形环中的变形，O形环的一部分由于存在从周围的O形环凹槽移出而不被限制，使得挡板上的角部 夹住现在部分位于其中并部分地从其周围的凹槽延伸的O形环。 在较低的压差下获得密封，并且由于拐角在挡板上的夹紧效应，O形环更好地固定。
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公开(公告)号：US20130240051A1
公开(公告)日：2013-09-19
申请号：US13423711
申请日：2012-03-19
申请人： Wade A. Miller , Robert J. Dyer , Michael L. Hair , Thomas S. Myerley , Leonard D. Medill , Matthew P. Presley
发明人： Wade A. Miller , Robert J. Dyer , Michael L. Hair , Thomas S. Myerley , Leonard D. Medill , Matthew P. Presley
CPC分类号： F16K27/0227 , F16K15/03 , Y10T137/0486 , Y10T137/0497 , Y10T137/6028 , Y10T137/7903 , Y10T137/8359
摘要： A valve assembly, including a seat and a flapper complementarily formed with respect to the seat for creating a seal at an interface therebetween. At least one shim is operatively disposed in the valve assembly for altering a position of the flapper relative to the seat in at least one direction for aligning the flapper and the seat at the interface. A method of aligning the flapper and seat of a valve assembly is also included.
摘要翻译： 一种阀组件，包括相对于所述座部互补形成的座和挡板，用于在它们之间的界面处产生密封。 至少一个叶片可操作地设置在阀组件中，用于在至少一个方向上改变挡板相对于座椅的位置，以便在接口处对准挡板和座椅。 还包括一种对准阀组件的挡板和阀座的方法。
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公开(公告)号：US09068661B2
公开(公告)日：2015-06-30
申请号：US13490073
申请日：2012-06-06
CPC分类号： F16K15/03 , E21B34/10 , E21B2033/005 , E21B2034/005 , F16K1/42
摘要： A recess is provided at the periphery of the flapper so that a corner that defines this recess engages an o-ring seal in a seat for the flapper. A reduced contact area of the flapper on the o-ring seal results in increased pressure over the actual contact area. The pressure applied over the contact area also forces a distortion in the o-ring that has a part of the o-ring not restrained due to the presence of the recess moving out of the surrounding o-ring groove so that the corner on the flapper pinches the o-ring that now is partly in and partly extending from its surrounding groove. Sealing is obtained at lower differential pressures and the o-ring is better fixated as a result of the pinch effect of the corner on the flapper.
摘要翻译： 在挡板的周边处设置有凹部，使得限定该凹部的角部与用于挡板的座中的O形环密封接合。 挡板在O形圈密封圈上的减小的接触面积导致在实际接触面积上的压力增加。 施加在接触区域上的压力也会导致O形环中的变形，O形环的一部分由于存在从周围的O形环凹槽移出而不被限制，使得挡板上的角部 夹住现在部分位于其中并部分地从其周围的凹槽延伸的O形环。 在较低的压差下获得密封，并且由于拐角在挡板上的夹紧效应，O形环更好地固定。
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公开(公告)号：US08863767B2
公开(公告)日：2014-10-21
申请号：US13423711
申请日：2012-03-19
申请人： Wade A. Miller , Robert J. Dyer , Michael L. Hair , Thomas S. Myerley , Leonard D. Medill , Matthew P. Presley
发明人： Wade A. Miller , Robert J. Dyer , Michael L. Hair , Thomas S. Myerley , Leonard D. Medill , Matthew P. Presley
CPC分类号： F16K27/0227 , F16K15/03 , Y10T137/0486 , Y10T137/0497 , Y10T137/6028 , Y10T137/7903 , Y10T137/8359
摘要： A valve assembly, including a seat and a flapper complementarily formed with respect to the seat for creating a seal at an interface therebetween. At least one shim is operatively disposed in the valve assembly for altering a position of the flapper relative to the seat in at least one direction for aligning the flapper and the seat at the interface. A method of aligning the flapper and seat of a valve assembly is also included.
摘要翻译： 一种阀组件，包括相对于所述座部互补形成的座和挡板，用于在它们之间的界面处产生密封。 至少一个叶片可操作地设置在阀组件中，用于在至少一个方向上改变挡板相对于座椅的位置，以便在接口处对准挡板和座椅。 还包括一种对准阀组件的挡板和阀座的方法。
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