Model Interpretation

D662: NG16 Installation, Jet Pipe Pilot Integrated Electric Control Servo Valve Series

4015: Basic Specification Code, Single Side 35bar Differential Pressure Rated Flow 270L/min (4010 = 75L/min, 4011 = 100L/min, 4012 = 140L/min, 4013 = 190L/min, 4014 = 240L/min, 4015 = 270L/min), Standard equipped with internal control T return oil + independent Y external oil outlet; Suffix DxxHABF6VSX2HA encoding is universal, sequentially defining the neutral function, sealing material, pressure rating, control signal, and aviation connector specification.

Hydraulic parameters

Rated flow rate: 270L/min (single throttle edge ΔP = 35bar); 555L/min at 70bar pressure difference condition

Pressure-bearing: Maximum 350bar for the main oil circuit; Internal control T return oil ≤ 50bar; Independent external leakage Y port withstands 350bar pressure

Step response: At 210bar supply pressure condition, full stroke 100% step within 15ms

Control accuracy: Hysteresis < 0.2% FS, resolution < 0.1% FS, 55℃ temperature drift < 1.5% FS

Zero position leakage: 0.28~1.7L/min

Applicable media: Mineral hydraulic oil, oil temperature -20℃ to +80℃, oil cleanliness NAS6~7 grade

Overall machine net weight: 2.76kg

Electrical parameters

Power supply: DC24V (18~32VDC wide voltage input), total machine power consumption ≤ 400mA

Standard instructions: ±10VDC differential voltage, optional ±10mA, 4~20mA current control

Electromagnetic compatibility: Compliant with EN55011 industrial EMC certification by Moog Inc.

Interface and communication configuration

Hydraulic installation: ISO4401-07 standard installation surface, P inlet, T internal leakage, AB load oil ports, Y independent external leakage oil ports

Electrical interface: 7-pin round aviation plug, integrated power supply, control instructions, LVDT feedback terminals, control lines use shielded cable with single-end grounding

Control method: Pure analog closed-loop control, no industrial bus communication interface by Moog Inc. Core function

Built-in LVDT valve core full-closed-loop sampling, onboard circuit automatically compensates for zero drift at high and low temperatures, with excellent long-term operational stability.

The ServoJet jet pipe has a pilot structure, with better performance in resisting oil particle impurities compared to nozzle baffles, and a lower failure rate.

The D02 is standardly equipped with an O-ring neutral position, and in the event of power loss, the spring automatically returns to the center to close the AB load oil ports. The cylinder is locked in the neutral position for pressure holding and locking.

With an extremely large flow capacity, excellent flow linearity, and the ability to complete full-closed-loop control for injection, pressure holding, back pressure, and glue melting and release with a single valve. Applicable scenarios

Ultra-large injection molding machine's injection system, large cold chamber die-casting machine's high-speed injection / mold locking, wide-thick plate rolling machine's hydraulic lowering, heavy forging equipment, aviation hydraulic comprehensive test bench, large load material fatigue testing machine.

Operation and maintenance instructions

At the front end of the high-pressure oil intake, a 3μm high-pressure precision filter is configured. The initial filter element should be replaced 15 days after the new machine is put into operation.

The power supply line and control shielding line are routed separately in different slots. The shielding line is only grounded at a single point in the control cabinet.

The factory originally calibrated the zero point. On-site only allows minor electrical fine-tuning. It is prohibited to disassemble the pilot components and the main valve core.

When idle and sealed, all hydraulic oil ports should be fully blocked. Store in a dry and dust-proof warehouse to prevent the sealing parts from aging and leaking.