D634-545 is a pilotless single-stage direct-drive servo valve of MOOG D634 series with ISO4401-05 (NG10) mounting. Equipped with permanent magnet linear force motor, integrated LVDT spool closed-loop feedback and 24VDC PWM drive, it is applied to high-pressure, ultra-high flow and high-response hydraulic closed-loop control.

Brand: MOOGModel: D634-545Structure: Pilotless single-stage direct drive valveInstallation standard: ISO4401-05 (NG10)Drive mode: Permanent magnet linear force motorFeedback type: Integrated LVDT spool position feedbackPower supply: 24VDC, 18-32VDC, maximum current 2.5ASignal interface: ±10V, ±10mA, 4-20mAProtection class: IP65Weight: Approximately 7.2kg

Accurately regulate fluid flow and direction, realize closed-loop control of position, speed, pressure and force.Pilotless design simplifies hydraulic circuit and lowers leakage rate.Spring centering structure ensures spool reset safely when power cuts off.Stable dynamic performance free from system pressure fluctuation.

Core control component for ultra-high flow and high-pressure hydraulic system.Premium replacement of conventional pilot servo valve with low maintenance and high stability.Designed for industrial closed-loop working condition with 450L/min rated flow and 350bar pressure.

Maximum working pressure: 350barMaximum T-port pressure: ≤50bar, 350bar optional with Y portRated flow under 35bar pressure drop: 450L/minPeak flow: 530L/minNull leakage: 2.2-7.0L/minFull stroke step response: ≤30ms-3dB frequency bandwidth: 20-35HzHysteresis: ＜0.25% full scaleResolution: ＜0.10% full scaleWorking fluid: ISO11158 mineral hydraulic oilFluid temperature range: -20℃~80℃

ISO4401-05 standard mounting manifoldM18 6-core electrical connectorHigh-precision hydraulic filterSpecial sealing kits0-350bar pressure detection sensor

Super large tonnage hydraulic press and heavy forging equipmentLarge-scale injection molding and die casting machineryHigh-load multi-axis vibration and fatigue test benchesHeavy industrial hydraulic control systemHigh-precision automatic closed-loop control facilities