• Series: D634 (ISO 4401 Size 05 / NG10)

• Type: Single‑stage direct‑drive servo valve, integrated 24 VDC electronics, LVDT spool closed‑loopMoog Inc.

• Model 1012: High‑response version, optimized for fast step response and high dynamic accuracy; for high‑speed, high‑precision industrial applications.

Hydraulic Data

• Max pressure P, A, B: 350 bar (5,000 psi)Moog Inc.

• Port T (no Y): 50 bar; (with Y): 350 barMoog Inc.

• Rated flow (Δp = 35 bar/land): 60–100 L/min

• Max flow: ≈185 L/min

• Internal leakage: ≤0.45 L/min

• Fluid: Mineral oil ISO 11158 / DIN 51524

• Fluid temp: −20 … +80 °C

• Cleanliness: ISO 4406 18/15/12 (recommended 17/14/11)

Performance (typical for 1012)

• Step response (0→100%): ≤12 msMoog Inc.

• Hysteresis: <0.3% FS

• Resolution: <0.08% FS

• Null drift (ΔT = 60 K): <0.8%

• Frequency response (−3 dB): ≥110 Hz

Electrical Data

• Supply: 24 VDC (18–32 VDC)Moog Inc.

• Max current: 2.2 A

• Control signals (jumper select): ±10 V, ±10 mA, 4–20 mAMoog Inc.

• Spool feedback output: 0–10 VDC

• Connector: M18, 6+PE, IP65Moog Inc.

• Ambient temp: −20 … +60 °C

Key Features

• Fast 12 ms step response for high‑speed cyclesMoog Inc.

• Closed‑loop LVDT ensures high repeatabilityMoog Inc.

• Spring‑centered, fail‑safe on power lossMoog Inc.

• Integrated EMC electronics, reduced external wiringMoog Inc.

• High pressure rating 350 bar for heavy‑duty systemsMoog Inc.

Applications