D634-547
Brand: MOOG
Model: D634-547
Series: D634
Structure: Pilotless single-stage direct drive servo valve
Mounting Standard: ISO4401-05 (NG10)
Drive Mode: Permanent magnet linear force motor
Feedback: Integrated LVDT spool position closed-loop feedback
Power Supply: 24VDC, 18-32VDC, max 2.5A
Control Signal: ±10V, ±10mA, 4-20mA
Protection Class: IP65
Weight: 6.3-7.2kg
Description
Detailed Specifications
Hydraulic Parameters
Max working pressure: 350barMax T-port pressure: ≤50bar, 350bar optional with Y portRated flow at 35bar pressure drop: 60L/minPeak flow: 110L/minNull leakage: 2.5-7L/minWorking fluid: ISO11158 mineral hydraulic oilFluid temperature: -20℃ ~ 80℃
Electrical Parameters
Max operating current: 2.5AConnector type: 6-core plus PE terminal
Dynamic Performance
Full stroke step response: ≤20ms-3dB bandwidth: 20-35HzHysteresis: ＜0.25% full scaleResolution: ＜0.10% full scaleTemperature drift: ＜1.5% full scale
Structure & Working Principle
No pilot oil required, simplifying hydraulic pipelines and cutting leakage.Linear force motor directly drives spool, stable performance unaffected by pressure fluctuation.Built-in LVDT sensor delivers real-time position feedback for high precision and repeatability.Spring centering design enables automatic neutral reset to ensure operational safety after power failure.
Main Features
Adaptable to high-pressure industrial hydraulic working conditions.Quick response and excellent control accuracy.High stability, anti-pollution capacity and low maintenance demand.Standard mounting size, convenient for installation and replacement.
Application Fields
Hydraulic press and forging equipmentInjection molding and die casting machinesVibration and fatigue test benchesHeavy industrial hydraulic control systemPrecision automatic closed-loop control devices
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