MOOG 664-4383K D664 Series Proportional Hydraulic Servo Valve

Technical Specifications

Model:664-4383K

Brand:MOOG

Product type:D664 Series Two-stage Proportional Electro-hydraulic Servo Valve

Structure:Two-stage amplification,electro-hydraulic feedback

Max working pressure:350bar

Rated control signal:±10V analog signal

Working medium:Mineral hydraulic oil

Connector:Multi-pin aviation electrical connector

Function:Convert analog electric signal into proportional hydraulic flow,closed-loop position,force and pressure control

Dimension:260mm135mm105mm

Weight:5.2kg

Operating temperature:-20℃ ~ +120℃

Storage temperature:-40℃ ~ +130℃

Relative humidity:10~90% non-condensing

Certification:CE

System compatibility

664-4383K belongs to MOOG D664 series proportional servo valve.It applies to large material fatigue test bench,heavy load simulation equipment and large hydraulic press,widely used in high-flow electro-hydraulic closed-loop control system.It is spare part for legacy hydraulic equipment overhaul.

Function

664-4383K is two-stage proportional electro-hydraulic servo valve.It adopts integrated electro-hydraulic feedback design,features large rated flow and stable control performance.The valve spool position is fed back electrically to realize high precision proportional adjustment of hydraulic flow.

Installation

Mount valve on standard hydraulic manifold,tighten mounting bolts to specified torque.Connect hydraulic oil pipeline and electrical control wiring.Complete oil flushing,parameter calibration and performance test before commissioning.Keep clean during handling,prevent oil contamination.

Interface

‑Multi-pin aviation electrical connector

‑Hydraulic P,T,A,B oil ports

‑Valve identification label

Feature

MOOG D664 series high flow proportional servo valve.Typical faults:nozzle blockage,coil damage,spool sticking,internal leakage.Inspect oil cleanliness and wiring status before replacement.

Diagnostic

Fault phenomenon:output flow abnormal,zero drift,slow response,no action.Check oil contamination,electrical wiring,coil status and spool condition.

Product Brief

664-4383K is MOOG D664 series two-stage proportional electro-hydraulic servo valve with large flow and high control precision,used for heavy-duty test and simulation hydraulic equipment,suitable for industrial hydraulic system maintenance and replacement.Strict oil cleanliness control is required in service.