D634-532 is a pilotless single-stage direct-drive servo valve conforming to ISO4401-05 (NG10). Equipped with 24VDC PWM drive and LVDT spool feedback, it applies to high-pressure closed-loop hydraulic control systems.

Brand: MOOGModel: D634-532Type: Pilotless electro-hydraulic direct drive servo valveMounting: ISO4401-05Drive: Permanent magnet linear force motor, no pilot oilPower supply: 24VDC, 18-32VDC, max 2.2AFeedback: Integrated LVDT closed-loop position detectionReset: Spring centering, fail-safe neutral returnProtection: IP65Weight: Approx 6.8kgConnector: M18 6-pin with PE terminal

Max working pressure: 350barMax T-port pressure: ≤50bar, 350bar available with Y portRated flow at 35bar pressure drop: 80L/minPeak flow: 150L/minNull leakage: 0.6-3.5L/minFluid: ISO11158 mineral oilFluid temperature: -20℃ ~ 80℃Cleanliness: ISO4406 17/14/11

Full stroke step response: ≤18ms-3dB bandwidth: 45-65HzHysteresis: ＜0.25% full scaleResolution: ＜0.10% full scaleTemperature drift: ＜1.5% full scale

Standard control signal: ±10VDCOptional signal: ±10mA, 4-20mAFeedback signal: 0-10VDCAmbient temperature: -20℃ ~ 60℃Certification: CE compliant

High reliability without pilot oil structureAccurate control supported by LVDT closed-loop feedbackStable performance unaffected by pressure changesEnergy-saving 24VDC driving circuitSafe spring reset design for power failure

Hydraulic press and forging machineryInjection molding and die-casting equipmentVibration and fatigue test benchesHeavy-duty industrial hydraulic systemPrecision position, speed and pressure closed-loop control