One gas flows in pipeline 1 and another gas in pipeline 2. The amount flowing in pipeline 2 is to be automatically maintained proportional to the flow rate in pipeline 1. Elastic measuring diaphragms 4 and 5 are mounted in pipelines 1 and 2. The pulse tubes of the diaphragms are connected to the corresponding membranes 6 and 7 of the regulator. If the forces developed by the membranes are equal, jet valve nozzle 8 will be in the central position. If the gas flow along pipeline 2 decreases, nozzle 8 is diverted to the left. The pressure of the fluid at the left side of piston 9 increases and it moves to the right, opening throttle valve 3 until the previous ratio is restored between the rates of flow of the two gases.
$4113$EHP,Rg$