Technical Parameters / Specifications Parameter Specification / Description Manufacturer & Model Eaton DG4V-3-2C-M-U-H7-60 Valve Type Servo-Proportional Directional Control Valve (Wet-Armature, with LVDT) Series / Size DG4V-3 (Size 03) Mounting Interface ISO 4401-03 (CETOP 3, NFPA D03) subplate Port Size (Main) Typically 3/8"-24 UNF, 7/16"-20 UNF, or M18x1.5 Port Size (Drain) Typically 7/16"-20 UNF or M14x1.5 Spool Type M – Specific Eaton proportional spool designation. Exact flow characteristics are defined by Eaton's performance curves. Spool Overlap Zero Lap / Servo Lap (For precise linear control around null) Actuator Type -2C- : Force Motor with integral LVDT position feedback. Electrical Connector -U- : Standard multi-pin connector (commonly a 10-pin or 12-pin military-style connector). Coil / Electronics Version -H7- : High-performance version with optimized dynamics. Command Signal Typically ±10 VDC or ±20 mA. LVDT Feedback Signal Typically ±10 VDC (representing actual spool position). Power Supply (for Electronics) Typically +24 VDC ±10%. Must be verified with datasheet. Maximum Operating Pressure Up to 350 bar (5,000 psi) Rated Flow (ΔP = 35 bar) Approx. 8 - 15 l/min (2.1 - 4.0 US gpm). Critical to check exact value from catalog flow curves for spool type "M". Frequency Response (-3 dB, 100% signal) High, typically > 70 Hz or higher for the -H7- version. Exact value depends on test conditions (amplitude, pressure). Hysteresis Very Low, typically < 1.0% Linearity Typically < ±2.0% Null Bias / Threshold Typically < 1% of rated signal Required Fluid Cleanliness Extremely Critical. Minimum ISO 4406 16/13/11 or better is mandatory for reliable long-term operation. Recommended Fluid Mineral-based hydraulic oils to ISO 11158 (e.g., HV32 or HV46). Fluid Temperature Range -20°C to +80°C (-4°F to +176°F) for standard seals. Weight (Approx.) ~ 2.0 kg (4.4 lbs)