DISK VALVES TO PROVIDE AN EQUAL PERCENTAGE FLUID FLOW CHARACTERISTIC

摘要

Disk valves to provide an equal percentage fluid flow characteristic are disclosed. An example apparatus includes a disk body (102), a sealing surface (108) of the disk body to form a seal with a valve body in a closed position, and a wall (120) protruding from the disk body. The wall includes an outer surface (122) adjacent a portion of the sealing surface and a depression (126) defined by the outer surface of the wall. The outer surface and the depression provide a substantially equal percentage fluid flow characteristic when the disk body transitions between the closed position and an open position.