D663 = Core D660 series, NG10 ISO4401-05 installation, ServoJet jet-pipe pilot structure, built-in amplifier + full-travel LVDT spool closed-loop feedback architectureZ = Custom special factory modification prefix for non-standard trim configuration2787 = Exclusive factory fixed trim number defining rated flow, amplifier gain, factory preset null offset; base four-way spring-centered critical zero-overlap spool designB = Special option: Viton high-temperature resistant seal set, improved internal amplifier anti-vibration layout, optimized thermal null drift compensation for wide temperature fluctuation working environment.

Rated Flow:158 L/min @35bar single-side differential pressure; peak instantaneous flow 226 L/min @70bar supply differential pressureMax Working Pressure:P/A/B main control ports up to 350bar; internal T drain ≤210bar; independent external Y drain withstand full 350bar system pressureFull Stroke Step Response:≤25.8ms under standard 210bar supply hydraulic pressureControl Precision:Hysteresis＜0.22%FS, Resolution＜0.075%FS, overall thermal drift(-20~+80℃)＜2.15%FSNull Leakage:0.75~1.82 L/min based on critical zero-overlap spool structureWorking Medium:Mineral anti-wear hydraulic oil, fluid cleanliness NAS6~7 / ISO4406 17/14/11, permissible fluid temperature -20℃~+85℃Net Weight:3.55kg

Input Power Supply:24VDC wide input range(18~32VDC), static standby current ≤790mAStandard Control Command:Factory preset ±10VDC differential voltage input; ±10mA /4~20mA current signal configurable via factory recalibrationEMC Compliance:Satisfy EN55011 industrial EMC standard; standard 7-pin military circular connector, IP65 protection after complete cable assemblyMoog Inc..

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

1.Patented ServoJet jet-pipe pilot owns superior anti-contamination capability compared to conventional nozzle-flapper pilot, ensuring long-term stable operation under moderately polluted hydraulic medium.2.Critical zero-overlap main spool delivers ultra-low null leakage characteristic, ideal for high-precision closed-loop pressure/position regulation; onboard LVDT closed-loop dynamically compensates spool displacement drift caused by ambient temperature variation, B suffix further optimizes high & low temperature zero stability for continuous long-time running.3.Spring-centered fail-safe neutral design: main spool automatically returns to center upon power loss to cut off A/B oil circuit and lock hydraulic actuator for equipment safety protection.4.Factory fixed amplifier gain matched for medium-flow high-precision closed-loop control condition; ±10VDC analog input provides outstanding anti-interference for medium-long wiring installation.

Precision hydraulic material tensile fatigue test bench position & force closed-loop control, medium-tonnage precision hydraulic forming press, metallurgical precise strip thickness rolling control system, aerospace component hot forming hydraulic control equipment, high-precision injection molding clamping & injection hydraulic drive unit.

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 troughs to avoid frequency converter harmonic interference to analog control signal; fasten valve with standard flat washers per factory specified tightening torque during installation.3.Flow gain and null offset parameters are fully pre-calibrated at MOOG factory; only slight on-site potentiometer fine adjustment allowed; complete disassembly of ServoJet pilot and main spool assembly is strictly prohibited.4.All unused hydraulic ports shall be sealed with original factory blank plugs for spare part storage; store inside dry dustproof warehouse to prevent Viton seal ageing and oil leakage.