II. Model Meaning (Segmented Explanation)

D661: Basic Series, ISO4401-05, Integrated 24V Electronics, Sleeve Valve Core

4: High Flow Capacity Platform (400 L/min +)

47: Rated Flow Code → 470 L/min (Δp=35 bar)

2: Dynamic Grade → Medium-High Dynamic (Step 9–11 ms, Bandwidth ≥ 110 Hz)

C: Standard Electronics (Zero Offset Temperature Drift Small, Strong Anti-Interference)

G45: Valve Core Characteristics → Zero Cover (G), Flow 45 gpm (≈170 L/min), Linear

JOAB: Electrical / Interface Configuration

J: ±10 mA Control Signal, Moog Inc.

O: Fail-Safe

A: Standard Aviation Plug (6+PE), Moog Inc.

B: Standard Feedback (4–20 mA Valve Core Position)

6VSX2HA: Sealing / Pressure / Special Configuration

6: 350 bar High Pressure, Moog Inc.

V: Fluororubber (Viton) Sealing (Temperature Resistance - 20℃~+80℃)

S: Standard Return Oil (Internal Y=210 bar), Moog Inc.

X: External Control Pilot X Port (21–280 bar), Moog Inc.

2HA: Dual T Ports, Standard Flow Direction, Industrial Grade Anti-Vibration

III. Hydraulic Parameters (Official Standard Values)

Rated Flow: 470 L/min ±8% (Δp=35 bar)

Maximum Flow: 520 L/min (Dual T Ports)

Maximum Working Pressure (P/A/B): 350 bar (5000 psi), Moog Inc.

Pilot Pressure X: 21–280 bar (External X Supply), Moog Inc.

Return Oil T: Internal Y=210 bar; External Y=350 bar, Moog Inc.

Medium: Mineral Hydraulic Oil (DIN 51524), Fluororubber Sealing

Temperature: -20℃ ~ +80℃

Environmental Temperature: -20℃ ~ +60℃, Moog Inc.

Weight: Approximately 5.7 kg

Installation Size: ISO4401-05 (NG10)

IV. Electrical Parameters (Official Standard Values)

Power Supply: 24 VDC (18–32 VDC), Moog Inc.

Static Current: ≈230 mA; Dynamic Peak: ≈500 mA, Moog Inc.

Control Signal: ±10 mA (Standard); Optional ±10 V/4–20 mA, Moog Inc.

Feedback Signal: 4–20 mA (Valve Core Position)

Step Response (0→100%, 210 bar): 9–11 ms, Moog Inc.

Bandwidth (-3dB): ≥110 Hz, Moog Inc.

Electrical Interface: 6+PE Aviation Plug, Moog Inc.

Protection: Short Circuit, Overcurrent, Overvoltage, Overheat

V. Core Features

✅ ServoJet® Pilot: Anti-Pollution, Long Life, High Reliability (No Risk of Nozzle Blockage)

✅ Integrated 24V Electronics: Plug-and-Play, No Need for External Amplifier, Reduces Wiring and Fault Points

✅ Built-in LVDT Feedback: Valve Core Position Closed Loop, High Control Accuracy (Linearity ±0.2%)

✅ High Flow + High Dynamic: 470 L/min at the same time with 110 Hz Bandwidth, Suitable for Heavy-duty High-speed Equipment

✅ Fluororubber Sealing: Temperature Resistance, Oil Resistance, Anti-Aging, Suitable for Harsh Environments

VI. Application Scenarios

Metallurgy: Rolling Mill Hydraulic Pressing Down, Straightening Machine, Coil Taking Machine Heavy-duty presses: Forging, stamping, composite material forming, hydraulic presses

Injection molding / die casting: High-speed precision molding machines, large-scale die casters

Marine / marine engineering: Deck machinery, steering gear, anchor gear, platform lifting

Test benches: Dynamic load, fatigue testing, impact testing