FLOW STRAIGHTENING SEAT RING AND CONTROL VALVE HAVING FLOW STRAIGHTENING SEAT RING

摘要

A seat ring (20) for a control valve (10) has a valve body (12) defining an inlet (22), an outlet (26), and a gallery (30). The seat ring includes an annular body (44) and a flow separator (46). The annular body is adapted to be disposed in the gallery of the valve body and includes an interior sidewall (54) defining a port (56)for accommodating fluid flow through the gallery. The flow separator is disposed within the port and includes a flow straightening portion (80) defining a plurality of separate passageways (86). Each of the plurality of separate passageways has a hydraulic diameter (Dh) and a length (L) that is larger than the hydraulic diameter. As such, the passageways separate the flow of fluid through the port into a plurality of separate flow paths (78) to interrupt turbulence adjacent to the port.