Patent ID: 8220775

Claim:
A flow connector for a valve, comprising: a body having a flow channel, the body including a first port, a second port, an opening area to receive a movable plug and a plurality of guide webs arranged in the opening area; wherein the first and second ports are capable of being flow-connected through the opening area; wherein the cross section surface area of the flow channel in the opening area is configured to be constant along a first height of lift and to be variable along a second height of lift; wherein the constant cross section surface area along the first height of lift allows for a constant flow rate through the flow channel independent of the height of lift, and wherein the variable cross section surface area along the second height of lift allows for a variable flow rate through the flow channel dependent on the height of lift; and wherein said guide webs taper in at least one direction and are arranged in the opening area along the second height of lift.