Model Code Decoding

• D634: Series, ISO 4401‑05 (NG10) size

• Z: High‑flow 4‑way (enhanced flow paths, no pilot oil)

• 510: Rated flow 250 L/min (Δp=35 bar/land)Moog Inc.

• (No suffix C/Y): Standard industrial revision, no Y‑port (T=50 bar max)

Technical Specifications

• Part Number: D634‑Z510

• Valve Size: ISO 4401‑05 (Size 05 / NG10)穆格中国

• Control Function: 4‑way flow control, spring‑centered

• Rated Flow (Δp=35 bar/land): 250 L/min (±10% tolerance)Moog Inc.

• Max Flow: 275 L/min

• Operating Pressure:

  • P/A/B ports: 350 bar (5,000 psi)穆格中国

  • T port (without Y): 50 bar穆格中国

  • Y port: Not available

• Response Time (0→100% step): ≤25 ms穆格中国

• Hysteresis: <0.2%Moog Inc.

• Null Shift (ΔT=55 K): <1.5%Moog Inc.

• Electrical:

  • Supply: 24 VDC (18–32 VDC), 3.0 A maxMoog Inc.

  • Signal: ±10 V, ±10 mA, or 4–20 mAMoog Inc.

  • Connector: 6+PE (EN 175201), IP65 (mated)Moog Inc.

• Fluid: Mineral oil (DIN 51524), viscosity 15–100 mm²/s

• Temperature:

  • Ambient: −20°C to +60°CMoog Inc.

  • Fluid: −20°C to +85°C

• Mass: ~9.0 kg

• Seals: FPM (Viton, high‑temp resistant)

Interface & Communication Configuration

• Electrical Interface: Analog command (±10 V / ±10 mA / 4–20 mA) + 24 VDC powerMoog Inc.

• Feedback: Integrated spool position sensor (closed‑loop); optional 2–10 V actual‑value output

• Mounting: 4‑bolt ISO 4401‑05 (M6 screws, 11–13 Nm torque)Moog Inc.

• Porting: P, A, B, T (no Y port)Moog Inc.

Core Functions

1. 250 L/min Ultra‑High‑Flow: Highest flow in D634Z series, for extra‑large actuatorsMoog Inc.

2. Direct‑Drive Linear Motor: No pilot flow, pressure‑independent dynamics

3. Integrated Closed‑Loop: Onboard spool feedback for precision control

4. High‑Flow Optimized Spool: Minimizes turbulence at max flowMoog Inc.

5. Industrial Grade: FPM seals, enhanced EMC, wide temp range

6. Fail‑Safe Spring Center: Spool centers on power loss

Application Scenarios

• Heavy Industrial: Large die‑casting, metal forming presses (250+ L/min demand)

• Large Test Systems: Full‑scale structural simulators, high‑force vibration benches

• Hydraulic Actuation: Precision control of extra‑large‑bore cylinders

• High‑Flow Processes: Continuous high‑volume hydraulic circuits

Compatibility & Key Differences

• Series Compatibility: Interchangeable with D634Z 180/210 L/min models (same ISO 05 mounting)Moog Inc.

• 510 vs 351C/359CY/360C:

  • 351C: 180 L/min, zero overlap, no Y‑port

  • 359CY: 180 L/min, 9‑spool, Y‑port (210 bar T)

  • 360C: 210 L/min, standard 0‑spool, no Y‑port

  • 510: 250 L/min, highest flow, no Y‑portMoog Inc.

• Replacement: Drop‑in upgrade for lower‑flow D634Z models or pilot‑operated 250+ L/min valvesMoog Inc.