Question: Regarding a regulation station, is pressure regulation the same as flow control?
Answer: They’re not the same.
The regulator valve opens and closes as necessary to allow the amount of gas to flow that’s required to restore and maintain downstream pressure. Pressure regulation only controls pressure to maintain a pressure setpoint.
The flow control valve opens and closes as necessary to allow the specified amount of gas to flow, regardless of downstream pressure. Flow control only controls flow to maintain a volume setpoint.
Tip: Control valves normally respond to signals generated by independent devices such as flow meters or temperature gauges.