In a meter-out flow control circuit, which statements apply?

In a meter-out flow control circuit, which statements apply?

• A. Is used to control aiding loads
• B. Builds back pressure at the actuator
• C. Is used to control opposing loads
• D. All of the above

Answer: (D)

Meter-out flow control works by throttling the fluid as it leaves the actuator and returns to the reservoir. When the cylinder moves, the oil must flow out, and restricting that flow creates back pressure in the actuator circuit. This back pressure slows the piston, meaning speed is controlled in the direction of movement. Because the throttling is on the discharge path, it affects motion in either direction, so it can accommodate loads that aid the motion or oppose it. That’s why all the statements apply: it can control aiding loads, it builds back pressure at the actuator, and it can control opposing loads.

Meter-out flow control works by throttling the fluid as it leaves the actuator and returns to the reservoir. When the cylinder moves, the oil must flow out, and restricting that flow creates back pressure in the actuator circuit. This back pressure slows the piston, meaning speed is controlled in the direction of movement. Because the throttling is on the discharge path, it affects motion in either direction, so it can accommodate loads that aid the motion or oppose it. That’s why all the statements apply: it can control aiding loads, it builds back pressure at the actuator, and it can control opposing loads.