D634-537A
D634-537A is a high-performance pilotless single-stage direct-drive servo valve of MOOG D634 series. Equipped with permanent magnet linear force motor, integrated LVDT spool closed-loop feedback and 24VDC PWM drive circuit, it is developed for high-pressure, high-dynamic and high-precision closed-loop hydraulic control.
Description
Basic Information
Brand: MOOGModel: D634-537AStructure: 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 2.2AProtection class: IP65Weight: About 6.8kg
Function & Positioning
Core Functions
Precisely adjust fluid flow and direction, achieve closed-loop control of position, speed, pressure and force.No pilot oil required, simplify hydraulic circuit and lower failure probability.Spring centering structure ensures safe neutral reset when power off.Dynamic performance keeps stable despite pressure changes.
Product Positioning
Key control part for medium-flow high-pressure hydraulic system.Upgrade substitute for traditional pilot servo valve, featuring high stability and easy maintenance.
Core Performance Parameters
Maximum working pressure: 350barMaximum T port pressure: ≤50barRated flow (35bar pressure drop): 60L/minPeak flow: 110L/minNull leakage: 0.8-4.0L/minFull stroke step response: ≤20ms-3dB frequency bandwidth: 40-60HzHysteresis: ＜0.25% full scaleResolution: ＜0.10% full scaleWorking fluid: ISO11158 mineral hydraulic oilFluid temperature: -20℃~80℃
Universal Matching Accessories
ISO4401-05 standard mounting manifoldM18 6-core electrical connectorHigh precision hydraulic filterSpecial sealing assemblyPressure detection sensor
Applicable Equipment Fields
Hydraulic press and forging equipmentInjection molding and die casting machinesVibration and fatigue test benchesIndustrial heavy hydraulic control systemPrecision automatic closed-loop control equipment
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