Model Code Definition

D662 = Base series: NG16 ISO4401-07 mounting, ServoJet jet-pipe pilot, onboard integrated servo amplifier

Z4336 = Exclusive factory flow trim code: fixed rated flow, preset null bias, locked amplifier gain and customized pilot component specification

K = Low-temperature optimized revision: improved internal oil gallery + thermal compensation circuit to reduce null shift under -20℃~+55℃ ambient swing

P01 = Electronic board version: P01 customized amplifier board, ±10VDC analog main command, factory fixed gain parameter setting

JX = Fail-safe mechanical configuration: spring centered neutral return on power loss, zero-spool-shift fail-safe structure

MF6 = Seal specification: FKM fluorocarbon sealing grade MF6, compatible with standard mineral hydraulic oil, wide temp resistant seal set

VSX2 = Electrical connector spec: 7-pin circular military plug VSX2, double-shield cable matching, IP65 protection after wiring

-A = Final factory calibration batch code, unique full-set null & flow calibration mark from MOOG original workshop

Technical Specifications

Hydraulic Parameters

Rated Flow:315 L/min @35bar single orifice differential pressure; peak instantaneous flow 510 L/min @70bar supply differential pressure

Max Working Pressure:P/A/B main ports 350bar; inner T drain ≤50bar; independent Y external drain full 350bar withstand

Full Stroke Step Response:≤25.8ms under 210bar supply pressure(210bar standard test condition)

Control Precision:Hysteresis＜0.18%FS, Resolution＜0.07%FS, overall thermal drift(-20~+55℃)＜2.1%FS

Null Leakage:0.52~3.2 L/min

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

Net Weight:3.82kg

Electrical Parameters

Power Input:24VDC wide range(18~32VDC), static standby current ≤700mA

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

EMC Standard:EN55011 industrial electromagnetic compatibility, VSX2 7-pin circular connector

Port & Connection Configuration

Hydraulic Interface:Standard ISO4401-07 NG16 mounting hole layout; P supply, A/B actuator control, inner T drain, separated Y external drain ports

Electrical Interface:VSX2 specified 7-pin military circular receptacle, integrates power supply, analog command and full-range LVDT feedback wiring; double-shielded control cable with single-point cabinet grounding

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

Core Functions

1.Patented ServoJet jet-pipe pilot owns superior anti-pollution performance vs traditional nozzle-flapper pilot, stable continuous operation under moderately contaminated hydraulic fluid in harsh production environmentMoog Inc..

2.P01 customized built-in amplifier cooperates with full-travel LVDT closed loop to auto compensate temperature-induced null offset; K optimized circuit plus MF6 high temp seal ensures stable performance in large temperature variation.

3.JX spring-centered fail-safe design:spool mechanically locks to mid-position once power cuts off, seals A/B oil cavity to fix load position for equipment safety protection.

4.Optimized internal flow channel maintains linear flow gain, flexible switching among position, speed and pressure three closed-loop control modes.

Typical Application

Heavy hot forging hydraulic press, automotive large sheet stamping line, steel strip mill tension control system, heavy-load fatigue test bench, aerospace composite hot-press forming equipment, large-tonnage die-casting mold clamping hydraulic system.

Installation & Maintenance Instructions

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

2.Separate power wire and shielded control cable inside independent wiring duct to avoid inverter harmonic interference on analog command signal.

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

4.Block all unused hydraulic ports with dedicated blank plugs during spare storage; stock inside dry dustproof warehouse to prevent MF6 FKM rubber seal ageing and oil leakage.