defined herein as the angle between contour 25 of the seat 22 and the center line of the seat 22 the seat angle 30 is one of several factors which determine the operating conditions of the ball valve 10 in addition to the seat angle 30 other factors may include without limitation the radius at which the ball valve 10 is located from its centerline of rotation the ball diameter 23 the density of the ball 24 the surface finish of the seat 22 the density of the fluid and the force of the spring 26 if applicable on the ball 24 in a preferred embodiment the dividing member is steel stamped to create a seat 22 having a pre determined seat angle 30 other method of forming the seat 22 include but are not limited to machining or molding the dividing member may also be finished using a hard steel pin to form the seat 22 in the preferred embodiment the cavity 14 of the housing 12 is wider than the seat 22 to permit the ball 24 to roll up the sides 25 and to permit more fluid between the walls of the cavity 14 and the ball 24 in the preferred embodiment 39 s operation fluid such as transmission fluid in.