Patent ID: 7143774

Claim:
A fluid flow control system, comprising: a fluid inlet to receive a flow of process fluid; a plurality of fluid outlets including a first fluid outlet to provide a first predetermined portion of the flow of process fluid received at the fluid inlet and at least one second fluid outlet to provide a remaining portion of the flow of process fluid received at the fluid inlet; a pressure sensor, to measure a pressure of the process fluid in the fluid inlet and provide a pressure signal indicative of the pressure of the process fluid; a first flow controller, fluidly coupled to the fluid inlet and the first fluid outlet, to receive a first setpoint indicative of the first predetermined portion of the flow of process fluid received at the fluid inlet to be provided by the first fluid outlet; and a pressure regulating device, fluidly coupled to the fluid inlet and the at least one second fluid outlet, to receive the pressure signal and a pressure setpoint indicative of a desired pressure of the process fluid in the fluid inlet, and to provide the remaining portion of the flow of process fluid received at the fluid inlet to the at least one second fluid outlet.