Model Code Definition

D662 = NG16 ISO4401-05 mounting size, ServoJet jet-pipe pilot structure, internal embedded electronic amplifier base series

Z4310 = Exclusive factory trim calibration code, pre-set rated flow, fixed null offset, customized pilot component and amplifier gain parameter

K = Low-temperature optimized modification version, improved internal runner & anti-drift circuit for wide ambient temperature fluctuation

P02 = Pilot supply oil configuration code, external independent pilot oil feed design, separate pilot pressure regulation port

J = Max rated supply pressure 315bar specification

XMF6 = Spool characteristic + seal option: zero-lap linear spool, FKM fluorocarbon sealing, special medium compatible design for anti-wear mineral oil

VSX2 = Drain & port layout: separated Y external drain, reinforced drain channel, standard military pin electrical interface

-A = Factory final inspection batch code, EU origin certified variant

Technical Specifications

Hydraulic Parameters

Rated Flow: 262 L/min @35bar single land differential pressure; maximum 442 L/min at 70bar supply differential pressure

Max Working Pressure: P/A/B main ports 350bar; internal T drain ≤50bar; independent Y external drain up to 350bar

Step Response: Full 0~100% spool stroke step response ≤26.5ms under 210bar supply pressure

Control Precision: Hysteresis＜0.17%FS, Resolution＜0.07%FS, full range (-20℃~+55℃) temperature drift＜2.05%FS

Null Leakage: 0.48~3.02 L/min

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

Net Weight: 3.79kg

Electrical Parameters

Input Power: 24VDC (18~32VDC wide input), static standby current ≤690mA

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

EMC Standard: EN55011 industrial EMC compliance; military circular connector IP65 protection after cable wiringMoog Inc.

Port & Connection Configuration

Hydraulic Interface: ISO4401 NG16 standard bolt layout; P supply port, A/B actuator control ports, built-in T internal drain, standalone Y external drain, extra external pilot oil inlet matching P02 specification

Electrical Interface: 7-pin military circular receptacle integrating power, command signal and full-range LVDT feedback wiring; double-shielded control cable with single-point cabinet grounding; pure analog control, no fieldbus communication port

Core Functions

Patented ServoJet jet-pipe pilot owns superior anti-contamination performance versus nozzle-flapper pilot, stable continuous operation under moderately contaminated hydraulic oil for severe industrial working conditions

Full-spool LVDT closed-loop together with onboard amplifier automatically compensates temperature-induced null drift; K-version optimized circuit enhances low-temperature stability under fluctuating ambient environment

Spring-centered fail-safe spool design: spool returns to neutral automatically during power failure to lock A/B oil chambers and fix load position for equipment safety protection

P02 independent external pilot oil supply separates main circuit pressure fluctuation from pilot stage, improving valve dynamic stability under sudden load shock

Linear optimized internal flow path supports free switching of position, velocity and pressure closed-loop control on single valve unit

Typical Application

Heavy automotive stamping line, large hot forging hydraulic press, wide strip steel mill tension control system, aerospace composite hot-forming equipment, high-load hydraulic fatigue test bench, large precision die-casting clamping hydraulic system

Installation & Maintenance Instructions

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

Lay high-power power cables and shielded control wires inside separated wiring ducts to avoid inverter harmonic interference to analog control signal

Flow gain and null offset are fully pre-calibrated at MOOG factory; only minor potentiometer fine trimming permitted on site; full disassembly of ServoJet pilot assembly and main spool is strictly forbidden

Seal all hydraulic ports with dedicated blocking plugs during long-term spare storage; store in dry dustproof warehouse to prevent FKM seal ageing and oil leakage