Model Code Definition

D662 = NG16 ISO4401-07 mounting, ServoJet jet-pilot design, built-in electronic control module seriesMoog Inc.

4307 = customized flow coding, rated flow 380 L/min at ΔP=35bar per metering land, internal T return plus separate Y external drain configuration

K = custom factory-calibrated spool lap & gain trim for special application tuning; standard full suffix configuration D02HYABN6VSF3-K, O-center spool, FKM fluorocarbon seal, ±10VDC differential analog command, 7-pin circular military connector, full-travel LVDT feedback, matched pilot component D061 pilot valve assembly.

Technical Specifications

Hydraulic Parameters

Rated Flow: 380 L/min @ 35bar single land pressure drop; approx. 665 L/min maximum flow under 70bar differential pressure

Max Working Pressure: 350 bar for P/A/B main ports; internal T drain ≤50bar; independent Y drain port rated 350bar

Dynamic Response: Full 0~100% step response ≤28ms at 210bar supply pressure

Control Accuracy: Hysteresis <0.2%FS, Resolution <0.1%FS, total thermal drift -20℃~+55℃ <2.4%FS

Null Leakage: 0.6~3.2 L/min

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

Net Weight: 3.78kg

Electrical Parameters

Power Supply: 24VDC (18~32VDC wide input range), static operating current ≤690mA

Standard Control Signal: ±10VDC differential analog input; optional ±10mA /4~20mA current input upon request

EMC Certification: EN55011 industrial compliance; electrical connector IP65 protection grade.

Port & Connection Configuration

Hydraulic Interface: Standard ISO4401-07 NG16 mounting hole layout; P supply, internal T return, A/B actuator ports, standalone Y external drain port

Electrical Interface: 7-pin round military receptacle integrating power supply, analog command and LVDT feedback wiring; double-shielded control cable with single-point cabinet grounding

Control Mode: Pure analog closed-loop regulation, no fieldbus communication interface.

Core Functions

Patented ServoJet jet-pipe pilot construction delivers superior anti-contamination performance against nozzle-flapper pilot, stable continuous operation under moderate-polluted hydraulic oil in industrial harsh environmentsMoog Inc..

Embedded LVDT full-spool closed-loop plus onboard amplifier automatically compensates ambient-temperature induced null shift, supporting 24/7 nonstop full-load running.

D02 O-center spool configuration: spring-centered at power loss to lock A/B actuator chambers for load holding, conforming to equipment fail-safe shutdown standard.

Optimized internal flow passage ensures linear flow gain; single valve supports flexible switching of position, velocity and pressure closed-loop control modes.

Typical Application

Precision metal strip rolling mill tension control, medium-tonnage hydraulic forging press, automotive component hydraulic forming machine, multi-channel material fatigue test bench, injection molding precision clamping system, small-size composite hot pressing equipment.

Installation & Maintenance Instructions

Install 3μm high-pressure inline filter on upstream supply pipeline; replace initial filter cartridge after 15 working days after commissioning startup.

Route power cable and shielded control wire inside separated cable trunking to isolate frequency converter harmonic interference on analog control signals.

Null offset and gain preset at MOOG factory; only slight on-site electrical trimming allowed; complete disassembly of ServoJet pilot and main spool assembly is forbidden.

Fully plug all hydraulic ports during long-term spare storage; store inside dry dustproof warehouse to prevent seal degradation and oil leakage.