The video here illustrates how the BECH-AFD valve behaves compared to a standard static ICD. The demonstration is based on flowing fluids through both type of valves, exposing them to same inflow pressure.
As one can see, reducing the pressure across the valves (simulating pressure depletion in a reservoir section outside a AFD or ICD) causes the standard ICD to reduce flow rate while the unique features built into the BECH-AFD maintains the flow rate

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