15.3: Meter-Out Flow Control Circuits

Fluids 1: Fluid Power and Pneumatics (NWTC) · LibreTexts

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    Meter-Out Flow Control Circuits

     

    A Pneumatic Schematic showing gage A, a flow control valve on top, gage B and a cylinder.
    Figure \(\PageIndex{1}\): A Pneumatic Schematic. (ISO 1219)
    A Pneumatic Schematic showing gage A, a flow control valve on bottom, gage B and a cylinder.
    Figure \(\PageIndex{2}\): A Pneumatic Schematic. (ISO 1219)

    Conversely, a meter-out flow control circuit restricts fluid leaving the actuator, controlling speed regardless of whether the load is aiding or opposing. This versatility makes meter-out configurations better suited for applications where load forces may aid cylinder movement. In a meter-out circuit, back pressure builds in the actuator, resisting the aiding load and ensuring smooth movement. A practical application is retracting a cylinder where the load assists movement; the meter-out control keeps movement stable by generating back pressure.

    A Pneumatic Schematic showing the DCV shifted up, the rod extending up, and the exiting flow.
    Figure \(\PageIndex{3}\): A Pneumatic Schematic. (ISO 1219)
    A Pneumatic Schematic showing the DCV shifted down, the rod retracting down, and the exiting flow.
    Figure \(\PageIndex{4}\): A Pneumatic Schematic. (ISO 1219)

    15.3: Meter-Out Flow Control Circuits is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts.