Which valve type does not depend on load to regulate flow?

Which valve type does not depend on load to regulate flow?

• A. Flow regulating valves
• B. Meter-in
• C. One-way control valve
• D. Restrictor

Answer: (A)

Flow regulating valves keep a preset flow constant regardless of the load pressure. They use a compensated metering mechanism that adjusts the flow path to compensate for changes in load resistance, so the actuator speed stays roughly the same even as the load varies. This makes their flow independent of the load, which is why they are the best choice for regulating flow without relying on load conditions. A meter-in valve controls how much flow enters the actuator, but the actual flow still varies with downstream pressure and load, so it’s not load-independent. A one-way control valve mainly blocks or permits flow in one direction and doesn’t set a constant rate. A restrictor simply throttles flow, and the flow through it depends on the pressure difference across it, changing with load rather than staying fixed.

Flow regulating valves keep a preset flow constant regardless of the load pressure. They use a compensated metering mechanism that adjusts the flow path to compensate for changes in load resistance, so the actuator speed stays roughly the same even as the load varies. This makes their flow independent of the load, which is why they are the best choice for regulating flow without relying on load conditions.

A meter-in valve controls how much flow enters the actuator, but the actual flow still varies with downstream pressure and load, so it’s not load-independent. A one-way control valve mainly blocks or permits flow in one direction and doesn’t set a constant rate. A restrictor simply throttles flow, and the flow through it depends on the pressure difference across it, changing with load rather than staying fixed.