Patent ID: 8714521

Claim:
A butterfly valve seat retainer comprising: a valve seat retainer body having an annular ring formed therein for receiving a valve seat therein, the valve seat retainer body configured to be positioned opposing a shaft of a butterfly valve, the annular ring comprising: a first channel proximate a radially inward edge of the annular ring; and a second channel between the first channel and the radially inward edge of the annular ring, wherein a depth of the first channel and a depth of the second channel are configured to receive an entire valve seat therein; the first channel separated from the second channel by a first protrusion, wherein a height of the first protrusion is less than the depth of the first and second channels; the second channel bound by a second protrusion, wherein the height of the second protrusion is less than the height of the first protrusion, and wherein the radially inward edge of the second protrusion forms a portion of the radially inward edge of the annular ring.