Parameter Specification / Description Manufacturer & Model Eaton DG4V-5-2CJ-M-U-H6-20 Valve Type Servo-Proportional Directional Control Valve (Wet-Armature) Series DG4V (Servo-Proportional Line) Size / Interface Size 05 (Mounts to ISO 4401-05 / NFPA D05 subplate) Port Size Primary ports: 3/4"-16 UNF, 7/8"-14 UNF, or M22x1.5 typical. Spool Type M (Specific notched spool for proportional flow control. Flow characteristics defined by Eaton.) Spool Overlap Zero Lap / Servo Lap (For precise, linear control around null) Actuator Type -2CJ- : Linear Force Motor (Torque Motor) with integral LVDT feedback. Electrical Connector -U- : Standard denotes a specific connector type, commonly a 10-pin or 12-pin military-style connector. Coil / Electronics Version -H6- : High-performance coil/electronics package. Specifics (current, impedance) defined by Eaton. Nominal Supply Voltage Typically ±10 VDC for command signal. Power supply for electronics is often +24 VDC. Must verify with datasheet. Input Signal Proportional command: Typically ±10 VDC or ±20 mA. Feedback Signal LVDT output: Typically ±10 VDC representing actual spule position. Maximum Operating Pressure Up to 350 bar (5,000 psi) Rated Flow (ΔP = 35 bar) Approx. 19 - 40 l/min (5 - 10.6 US gpm) depending on spool "M" specifics. Critical to check catalog curve. Frequency Response (-3 dB, 100% signal) High, typically > 70 Hz for the -H6- 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 current Recommended Fluid Mineral-based hydraulic oils to ISO 11158 (e.g., HV46). Filtration critical. Required Filtration Extremely High Cleanliness Required. Typically ISO 4406 16/13/11 or better for reliable long-term operation. Fluid Temperature Range -20°C to +80°C (-4°F to +176°F) for standard seals. Weight (Approx.) ~ 4.0 kg (8.8 lbs)