D634-533 is a pilotless single-stage direct-drive servo valve with ISO4401-05 (NG10) mounting. It adopts 24VDC PWM drive and built-in LVDT spool feedback, suitable for high-pressure closed-loop hydraulic control.

Brand: MOOGModel: D634-533Type: Pilotless electro-hydraulic direct drive servo valveMounting Standard: ISO4401-05Drive Mode: Permanent magnet linear force motor, no pilot oil requiredPower Supply: 24VDC, 18-32VDC operating range, max 2.2APosition Feedback: Integrated LVDT closed-loop detectionReset Mode: Spring centering, fail-safe neutral returnProtection Grade: IP65Weight: Approx 6.8kgConnector: M18 6-pin with PE terminal

Max working pressure: 350barMax T-port pressure: ≤50bar, up to 350bar with Y portRated flow at 35bar pressure drop: 60L/minPeak flow: 110L/minNull leakage: 0.5-3.0L/minApplicable fluid: ISO11158 mineral oilFluid temperature: -20℃ ~ 80℃Fluid cleanliness: ISO4406 17/14/11

Full stroke step response: ≤16ms-3dB bandwidth: 50-70HzHysteresis: ＜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

Pilotless design improves operational stabilityHigh precision control via LVDT closed-loop feedbackConsistent performance regardless of pressure fluctuationLow power consumption 24VDC driving systemSpring reset mechanism ensures safe operation during power failure

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