Model Interpretation

D662: NG16 mounting surface, jet pipe pilot, built-in circuit board closed-loop servo valve series

4036: Flow encoding, single-sided ΔP = 35bar rated flow 410L/min, higher than 4032 (340L/min), standard internal control T return oil + independent Y external oil outlet; conventional suffix D02HABF6VSX2 continues to use O-type neutral position, 280bar pilot pressure resistance, nitrile seal, 210bar system calibration, 7-pin aviation plug, ±10V voltage command, LVDT closed-loop configuration. Technical Specifications

Hydraulic parameters

Rated flow rate: 410L/min (single throttle edge pressure difference 35bar); maximum flow capacity at 70bar pressure difference limit ≈ 835L/min

Pressure resistance: Maximum pressure at the main oil ports P/A/B is 350bar; internal control T return oil ≤ 50bar; external leakage Y oil port withstands 350bar pressure

Dynamic response: Supply pressure 210bar, full stroke 100% step change < 19ms

Control accuracy: hysteresis < 0.2% FS, resolution < 0.1% FS, zero point drift -20~55℃ ≤ 1.7% FS

Zero position leakage: 0.35~2.1L/min

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

Overall machine net weight: 3.1kg

Electrical parameters

Power supply: DC24V (18~32VDC wide voltage input), static power consumption ≤ 460mA

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

Electromagnetic compliance: EN55011 industrial EMC standard

Interface and communication configuration

Hydraulic interface: ISO4401-07 NG16 standard installation base, P inlet, T internal control return oil, A/B load oil ports, Y independent external leakage oil ports

Electrical interface: 7-pin round aviation socket, integrated power supply, control signal, LVDT feedback wiring, control line double-layer shielding, control cabinet single-point grounding

Control form: Pure analog closed-loop control, no industrial bus communication interface Core function

ServoJet jet pipe pilot, with excellent resistance to oil impurities, the failure rate in harsh conditions is lower than that of nozzle baffle structure.

Built-in LVDT valve core for full closed-loop, onboard circuit automatically compensates for temperature drift, and zero-point stability is strong during long-term continuous operation.

The D02 model is equipped with O-type neutral position, power-off spring for centering and sealing of A/B oil ports, cylinder locking and holding pressure, ensuring the safety of equipment during shutdown.

Super large flow + excellent flow linearity, a single valve can achieve multi-mode closed-loop switching control of position, speed and pressure. Applicable scenarios

Ultra-large cold chamber die-casting machine high-speed injection, ten-thousand-ton heavy-duty injection molding machine injection closing loop, wide and thick plate rolling machine AGC hydraulic lowering, large-scale forging hydraulic unit, hydraulic comprehensive test bench, heavy-duty component fatigue testing equipment.

Operation and maintenance instructions

Pre-install a 3μm high-pressure precision filter at the inlet pipeline. Replace the first set of filter elements after 15 working days of new machine commissioning

Separate the power cable and shielded control line for wiring in separate channels to avoid power harmonics interfering with the simulation of control signals

Original factory calibration of zero point and gain, only allow minor electrical fine-tuning on site, and strictly prohibit disassembling the pilot valve and main valve core of the jet pipe

Seal all P/T/A/B/Y oil ports for long-term storage and sealing, store dry and dust-proof to delay the aging and leakage of seals.