公开(公告)号：US09194501B2

公开(公告)日：2015-11-24

申请号：US13681756

申请日：2012-11-20

申请人： Dresser, Inc.

发明人： Thomas Henry Cunningham ,  Christopher Edward Wolfe ,  Nuo Sheng ,  Xuele Qi ,  Azam Mihir Thatte ,  James Albert Stares ,  Henry William Boger

IPC分类号： F16K31/12 ,  F16K1/34 ,  F16K39/02

CPC分类号： F16K1/34 ,  F16K39/022 ,  F16K39/024 ,  Y10T137/7937

摘要： An apparatus includes a cage and a main plug disposed in the cage. The main plug is movable between a main plug closed position and a main plug open position. A seal assembly disposed on the main plug, the seal assembly having a seal that is configured to contact the cage when the main plug is in the main plug closed position, and configured to reduce contact with the cage when a pressure differential across the seal is reduced. The apparatus includes a pressure balancing assembly movable between a closed position, an overtravel position and an open position. The pressure balancing assembly is configured to balance the pressure differential across the seal when in the overtravel and open position.

摘要翻译： 一种装置包括设置在保持架中的保持架和主插头。 主插头可在主插头关闭位置和主插头打开位置之间移动。 一种密封组件，其设置在所述主塞上，所述密封组件具有密封，所述密封构造成当所述主塞处于所述主塞闭合位置时与所述保持架接触，并且构造成当所述密封件两端的压力差为 减少 该装置包括可在关闭位置，超行程位置和打开位置之间移动的压力平衡组件。 压力平衡组件构造成在过行程和打开位置时平衡密封件两端的压差。

公开(公告)号：US20140137957A1

公开(公告)日：2014-05-22

申请号：US13681756

申请日：2012-11-20

申请人： DRESSER, INC.

发明人： Thomas Henry Cunningham ,  Christopher Edward Wolfe ,  Nuo Sheng ,  Xuele Qi ,  Azam Mihir Thatte ,  James Albert Stares ,  Henry William Boger

IPC分类号： F16K15/02

CPC分类号： F16K1/34 ,  F16K39/022 ,  F16K39/024 ,  Y10T137/7937

摘要： An apparatus includes a cage and a main plug disposed in the cage. The main plug is movable between a main plug closed position and a main plug open position. A seal assembly disposed on the main plug, the seal assembly having a seal that is configured to contact the cage when the main plug is in the main plug closed position, and configured to reduce contact with the cage when a pressure differential across the seal is reduced. The apparatus includes a pressure balancing assembly movable between a closed position, an overtravel position and an open position. The pressure balancing assembly is configured to balance the pressure differential across the seal when in the overtravel and open position.

摘要翻译： 一种装置包括设置在保持架中的保持架和主插头。 主插头可在主插头关闭位置和主插头打开位置之间移动。 一种密封组件，其设置在所述主塞上，所述密封组件具有密封，所述密封构造成当所述主塞处于所述主塞闭合位置时与所述保持架接触，并且构造成当所述密封件两端的压力差为 减少 该装置包括可在关闭位置，超行程位置和打开位置之间移动的压力平衡组件。 压力平衡组件构造成在过行程和打开位置时平衡密封件两端的压差。