Model Code Definition

D662 = Base model: NG16 ISO4401 mounting dimension, ServoJet jet-pipe pilot structure, embedded integrated servo drive amplifier

Z5001 = Exclusive factory trim code, defines fixed rated flow value, preset null offset parameter, factory locked amplifier gain and matched internal pilot assembly specification

No suffix = Standard industrial control circuit + conventional FKM elastomer sealing for normal indoor ambient application

Technical Specifications

Hydraulic Parameters

Rated Flow:252 L/min @35bar single-side differential pressure; peak instantaneous flow 392 L/min under 70bar supply differential pressure

Max Working Pressure:P/A/B main control ports 350bar; built-in T internal drain ≤50bar; standalone Y external drain withstand full 350bar rated pressureMoog Inc.

Full Stroke Step Response:≤24.8ms at standard 210bar supply oil pressure

Control Precision:Hysteresis＜0.18%FS, Resolution＜0.072%FS, overall thermal drift(0~+55℃)＜2.25%FS

Null Leakage:0.50~3.05 L/min

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

Net Weight:3.78kg

Electrical Parameters

Input Power Supply:24VDC wide range(18~32VDC), static standby quiescent current ≤675mA

Standard Command Signal:±10VDC differential analog input; ±10mA /4~20mA current signal configurable via factory special order

EMC Compliance:Conforms to EN55011 industrial electromagnetic compatibility standard; 7-pin military circular connector with IP65 protection after complete cable fitting

Port & Connection Configuration

Hydraulic Interface:Standard ISO4401 NG16 mounting hole layout, separated P supply port, A/B actuator control ports, built-in T internal drain and independent Y external drain port

Electrical Interface:7-pin circular receptacle integrates power supply, analog command signal and full-range LVDT feedback wiring; double-shielded control cable with single-point grounding inside control cabinet

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

Core Functions

1.Patented ServoJet jet-pipe pilot delivers outstanding anti-pollution capability superior to traditional nozzle-flapper structure, ensures long-term stable continuous operation under moderately contaminated workshop hydraulic fluid condition.

2.Integrated matched amplifier paired with full-stroke LVDT closed-loop automatically offsets mild neutral drift induced by regular ambient temperature variation, standard circuit meets stable continuous industrial production requirement.

3.Spring-centered mechanical fail-safe spool:main spool returns to middle position automatically once power supply fails to cut off A/B oil path and lock hydraulic actuator position for equipment safety protection.

4.Optimized internal runner maintains excellent linear flow gain, supports flexible switching among position, velocity and pressure three closed-loop control modes.

Typical Application

Large tonnage hot forging hydraulic press, automotive heavy plate stamping production line, medium-large steel rolling mill tension control system, high-load hydraulic component fatigue test bench, large composite material hot-press forming equipment, big-spec injection molding clamping hydraulic system.

Installation & Maintenance Instructions

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

2.Arrange power cable and shielded control wire inside independent wiring troughs to avoid frequency converter harmonic interference to analog control command.

3.Null bias and flow gain are fully pre-calibrated at MOOG original factory; only tiny on-site potentiometer fine tuning permitted; complete disassembly of ServoJet pilot and main spool assembly is strictly forbidden.

4.Seal all unused hydraulic ports with dedicated blank plugs during spare parts storage; preserve inside dry dustproof warehouse to avoid FKM fluororubber seal ageing and hydraulic medium leakage.