1. General Description

• Series: D634 (ISO 4401‑05 / NG10)

• Model 1042: Max flow + fastest dynamics in D634; low internal leakage

• Typical applications: High‑flow & high‑speed hydraulic presses, dynamic test benches, material fatigue systems, and closed‑loop controls requiring max flow + ultimate dynamics + low leakage.

2. Hydraulic Specifications

• Max working pressure (P, A, B): 350 bar (5,000 psi)

• T‑port pressure: 50 bar (no Y‑port); 350 bar (with Y‑port)Moog Inc.

• Rated flow (Δp = 35 bar per land): 100 L/min (26.4 gpm)

• Max flow: approx. 190 L/min (50.2 gpm)

• Internal leakage: ≤0.55 L/min

• Fluid: mineral oil per ISO 11158 / DIN 51524

• Fluid temp: −20 °C to +80 °C

• Filtration: ISO 4406 17/14/11 or better

3. Performance Characteristics

• Step response (0→100% stroke): 11–13 ms (fastest in D634)

• −3 dB bandwidth: 105–115 Hz (highest in D634)

• Hysteresis: <0.40% FS

• Resolution: <0.10% FS

• Null drift (60 K change): <0.9% FS

• Repeatability: ≤0.25% FS

4. Electrical Specifications

• Supply voltage: 24 VDC (18–32 VDC range)Moog Inc.

• Max operating current: 3.5 A

• Command signals (jumper‑selectable): ±10 V, ±10 mA, 4–20 mAMoog Inc.

• Spool position feedback: 0–10 VDC (standard)

• Connector: M18, 6‑pin + PE, IP65Moog Inc.

• Ambient temp: −20 °C to +60 °C

• EMC: compliant with CE directives

5. Mechanical & Installation

• Mounting: ISO 4401 Size 05 (NG10) pattern

• Weight: approx. 6.3 kg (13.9 lb)

• Installation: horizontal recommended; clean mounting surface; bleed air from valve and lines before commissioning

6. Pinout (M18 Connector)

1. +24 VDC

2. Power GND

3. Command +

4. Command −

5. Spool position feedback (0–10 V)

6. Feedback GND

   PE: Protective Earth (chassis ground)

7. Key Differences (vs 1035/1036/1037/1040/1041)

• Flow: 1042 = 100 L/min (tied with 1040/1041 for highest)

• Speed: 1042 = 11–13 ms (fastest in D634)

• Bandwidth: 1042 = 105–115 Hz (highest in D634)

• Leakage: 1042 = ≤0.55 L/min (same as 1040/1041; higher than 1036/1037)