Patent ID: 7963503
Filing Date: 2011-06-21
Classification: F16J,F16K

Abstract:
1. A rotary valve comprising: a valve body having an inlet, an outlet, a flow passage extending between the inlet and the outlet, and a first surface; a rotating control element disposed within the valve body for selectively opening and closing the flow passage; a retainer ring mounted to the valve body, and having a second surface generally facing the first surface; and a seal carrier ring having an annular mounting flange mounted between the valve body and the retainer ring, the mounting flange having two sides and engaged on one side by the first surface and on the other side by the second surface, the seal carrier ring including a seal carrier cartridge having a cartridge attachment face on an exterior surface of the seal carrier cartridge, the cartridge attachment face abutting a corresponding attachment surface on a curvilinear flexible portion, the curvilinear flexible portion extending from the corresponding attachment surface to the mounting flange; wherein a first groove surface in the retainer ring and a second groove surface in the valve body cooperate to define an area sized to receive the flexible portion, and wherein the area is sized so that the seal carrier cartridge resides approximately at a midpoint between the valve body and the retainer ring.