Patent ID: 7182100

Claim:
A mixing valve comprising: a spherical valve element insertable on the base and having flow control passages; a stem connected to said spherical valve element and extending therefrom; a support element having a surface on one face that embraces a portion of the spherical valve element, said support element having an opening though which the stem extends, the support element having a cam surface on the other face thereof for guiding movement substantially in a given plane; a key element received over said stem and co-acting with said cam surface to permit movement in said given plane, said key element having an elongated slot with parallel sidewalls; said stem having at least one surface co-acting with one of said parallel sidewalls to prevent rotation of said stem and said spherical valve element relative to said key element; and a keeper connected to said stem for retaining said key element, support element, and spherical valve element as a unit, and wherein said stein has a guide for limiting movement of said stem relative to said key in a direction substantially perpendicular to said given plane.