Torque reduction valve with separate static and dynamic seals

A valve assembly (10) includes a plug (123) extending along a central axis (C) and including a plug body (127) having an external plug surface (129). The outer plug surface tapers radially outward in a first direction along the central axis. The valve assembly also includes a sleeve (101) having an inner sleeve surface (109) defining an inner cavity (111). The inner sleeve surface tapers radially outward in the first direction. The plug body is positioned within the interior cavity of the sleeve. The plug is rotatable relative to the sleeve about the central axis, and the plug is also translatable relative to the sleeve along the central axis. 一种阀门组件(10)包括插塞(123)，插塞(123)沿中心轴线(C)延伸且包括具有外部插塞表面(129)的塞体(127)。所述外部插塞表面沿所述中心轴线在第一方向上径向向外锥化。所述阀门组件还包括套筒(101)，套筒(101)具有限定内部腔体(111)的内部套筒表面(109)。所述内部套筒表面在所述第一方向上径向向外锥化。所述塞体定位在所述套筒的内部腔体内。所述插塞可围绕所述中心轴线相对于所述套筒旋转，且所述插塞还可沿所述中心轴线相对于所述套筒平移。