CONTROL VALVE HAVING C SEAL

摘要

A control valve having a shiftable valve plug includes a valve body (12) having an inlet, an outlet, a flow passage extending between the inlet and the outlet, and defining a longitudinal axis, a generally cylindrical valve cage (26) disposed within the valve body and sized to receive the valve plug, with the valve cage including at least one aperture comprising at least a portion of the flow passage, a portion of the valve cage disposed adjacent a portion of the valve body at an interface. A seal (40) having a C-shaped cross section is provided and is disposed at the interface between the valve cage and the valve body, and a retainer (82) is disposed adjacent the interface and positioned to secure the seal against movement along the longitudinal axis.