Valve seat retainer having a full uninterrupted gasket face.

摘要

A recessed seat retainer (51) for a valve is secured in an annular recess on the face of a valve body (12) by a totally internally disposed key system which odes not create an external leak path. An annular keyway (54) is formed in the cylindrical sidewall of a seat retainer (51). A key (52) extends from the cylindrical sidewall of an annular recess formed in an axial face of the valve body. The key (52) is received in the keyway (54) and locks the retainer (51) against axial dislodgement from the valve body (12).