A throttling valve that allows an operator to remove and replace the flow trim of the throttling valve without disassembling and/or removing the throttling valve from a flow line, and without removing an actuator, which eliminates the need to recalibrate said actuator. The throttling valve also allows drops in fluid pressure to be staged upstream and/or downstream of a main multi-port-disc trim within the same valve body to help prevent cavitation and freezing of fluids contained within the valve. The throttling valve also allows direct connection of actuators to a valve body.