| 摘要 |
<p>A valve includes a fluid inlet passageway coupled to a fluid outlet passageway through an orifice and a valve plug that is moveable with respect to the orifice to vary the rate of fluid flow through the orifice. A seat ring (65) is disposed at the orifice and includes a structural member having three vanes (68) connected in a Y-shaped configuration extending into the fluid inlet passageway adjacent the orifice. The Y-shaped vane configuration prevents disturbances, such as intermittent vortices, from forming within the fluid in the fluid passageway and, thereby, provides a stable rate of fluid flow through the valve.</p> |
