Model Code Definition

D663 = D660 core series, NG10 ISO4401-05 installation dimension, ServoJet jet-pipe pilot construction, onboard amplifier + full-stroke LVDT spool displacement closed-loop feedback design

5002 = exclusive factory fixed trim code determining rated flow, amplifier gain and null offset; base configuration four-way spring-centered spool with 10% positive overlap, standard NBR sealing; optional customized 7-pin connector, Viton fluorine seal and drain port structure modification per special orderMoog Inc.。

Technical Specifications

Hydraulic Parameters

Rated Flow:365 L/min @35bar single-side differential pressure; peak instantaneous flow 518 L/min @70bar supply differential pressure

Max Working Pressure:P/A/B main ports up to 350bar; internal T drain ≤210bar; standalone external Y drain withstand full 350bar system pressure

Full Stroke Step Response:≤29.5ms under 210bar nominal supply hydraulic pressure

Control Precision:Hysteresis＜0.25%FS, Resolution＜0.085%FS, overall thermal drift(-20~+80℃)＜2.52%FS

Null Leakage:0.35~2.35 L/min based on 10% positive overlap spool design

Working Medium:Anti-wear mineral hydraulic oil, fluid cleanliness NAS6~7 / ISO4406 17/14/11, operating fluid temperature -20℃~+80℃

Net Weight:3.52kg

Electrical Parameters

Input Power Supply:24VDC wide-range input(18~32VDC), static standby current ≤810mA

Standard Control Command:Factory preset ±10VDC differential voltage input; ±10mA /4~20mA current signal available via factory parameter recalibration

EMC Compliance:Meet EN55011 industrial EMC; standard 7-pin military circular connector with IP65 protection after full cable assemblyMoog Inc.。

Port & Connection Configuration

Hydraulic Interface:ISO4401-05 NG10 standard hole layout with independent P supply port, A/B actuator control ports, split internal T drain and dedicated external Y drain, factory pre-installed NBR mounting face gaskets

Electrical Interface:7-pin circular receptacle integrating 24V power supply, ±10VDC control command and full-stroke LVDT feedback signal; double-shielded control cable required with single-point cabinet grounding, no fieldbus digital communication interface。

Core Functions

1.Patented ServoJet jet-pipe pilot features outstanding anti-pollution performance compared with conventional nozzle-flapper pilot, ensuring stable continuous operation under moderately contaminated hydraulic fluid conditionMoog Inc.。

2.10% positive overlap main spool optimized for ultra-high flow steady pressure/force closed-loop regulation; onboard LVDT closed-loop dynamically compensates spool position drift induced by wide-range ambient temperature variation。

3.Spring-centered fail-safe neutral structure: main spool automatically returns to center upon power loss to block A/B oil passages and lock hydraulic cylinder for equipment overload safety protection。

4.Factory fixed amplifier gain matched for ultra-high flow heavy-load variable working conditions; ±10VDC analog input delivers superior anti-interference performance for medium-long wiring precision closed-loop control。

Typical Application

Large heavy-load hydraulic forging press master cylinder force closed-loop control, super-large metallurgical hot rolling mill hydraulic actuator positioning control, oversized fatigue test bench high-flow hydraulic drive system, heavy-duty die-casting machine mold clamping & injection precision control, large-size composite thermal forming hydraulic equipment。

Installation & Maintenance Instructions

1.Mount 3μm high-pressure precision inline filter on upstream supply pipeline; replace initial filter cartridge after 15 working days of equipment commissioning startup。

2.Arrange power cable and shielded control wire inside separated wiring ducts to avoid inverter harmonic interference on analog control signal; fix valve with standard flat washers following factory specified tightening torque during installation。

3.Flow gain and null offset parameters are fully pre-calibrated at MOOG factory; only minor on-site potentiometer fine adjustment allowed; complete disassembly of ServoJet pilot and main spool assembly is strictly prohibited。

4.Seal all unused hydraulic ports with original factory blank plugs for spare part storage; preserve inside dry dustproof warehouse to prevent NBR seal ageing and hydraulic oil leakage。