Fluid flow control apparatus

摘要

An apparatus for controlling a fluid flow rate includes a main body having a fluid flow passage and a cavity adapted to receive a flow control body having two or more flow channels therethrough. The flow control body may be moved within the cavity to two or more positions, each position corresponding to fluid communication between the flow passage of the main body and a different one of the flow channels of the flow control body. The flow control body may be held in each position by a detent feature that resists movement of the flow control body until a movement force acting upon the flow control body exceeds a threshold.