The Parker Hannifin MV661S-3-8NPT Metering Valve is a hydraulic metering valve from Parker Hannifin’s MV661S series. It is used to regulate hydraulic flow by adjusting throughput through a metering orifice, enabling controlled flow in hydraulic circuits. The model designation MV661S-3-8NPT specifies the valve’s size and port configuration within the MV661S family.
