Key Parameters Item Parameter / Description Maximum pressure (ports P, A, B) 350 bar (≈ 5075 psi) Maximum tank (T port) pressure 210 bar (≈ 3045 psi) Maximum flow rate Up to 80 L/min (≈ 21 US gpm) Minimum pressure drop ≈ 2.5 bar at 30 L/min Spool type (for “2C”) Closed‑center spool, spring‑centered arrangement Valve function / flow direction 4‑way directional control (P ↔ A/B ↔ T) Actuation / Electrical connection Solenoid‑operated; DIN 43650 (ISO 4400) coil/connector Electrical spec (common variant) 110 V AC (50 Hz) / 120 V AC (60 Hz) coil — for 60‑design version Operating temperature range –20 °C to +70 °C (–4 °F to +158 °F) Valve size / series DG4V‑3 series, ISO 4401‑03 / D03 / CETOP 3

Key Parameters Item Parameter / Description Maximum Pressure (P, A, B ports) 350 bar (≈ 5000 psi) Tank Port (T) Pressure Rating 100 bar (≈ 1450 psi) Maximum Flow Rate Up to 80 L/min (≈ 21 US gpm) Spool Type Spool “0” Spring Arrangement Spring offset end-to-end Mounting Type Subplate / manifold mounted Actuation Solenoid operated, single-stage Coil / Electrical 24 V DC, ISO 4400 (DIN 43650) connector Coil Power 30 W Operating Temperature Range –20 °C to +70 °C (–4 °F to +158 °F) Valve Series / Size DG4V-3 series, ISO 4401-03 / D03 / NG6

Parameter Description / Value Notes Product Line Eaton DG4V Second Generation Type Proportional Directional Control Valve 4-way, 3-position Porting Size NG03 (CETOP 3 / NFPA D01) Standard subplate interface Maximum Operating Pressure 350 bar (5,075 psi) Maximum Flow Rate Approx. 19 L/min (5 US gpm) *Dependent on spool and pressure drop (e.g., Δp = 10 bar).* Spool Type 0B (O-spool with critical center overlap) Provides a blocked center with minimal leakage at neutral, ideal for holding loads. Center Position M (Closed Center / All Ports Blocked) In the center (neutral) position, all work ports (A, B) and the pressure port (P) are blocked, and the tank port (T) is open. This effectively holds an actuator in place. Solenoid Type Proportional Solenoid Wet armature design Electrical Connector U (DIN 43650 Form A, 4-pin) Standard industrial connector Integrated Electronics H7 On-board amplifier card for open-loop control Input Signal ±10 VDC or 4-20 mA Selectable via internal dip-switches Supply Voltage (to amplifier) 12-30 VDC For the H7 amplifier Coil Voltage Derived from internal amplifier Typically 12-24 VDC pulsed Hysteresis < 3% Typical for open-loop proportional valves IP Rating IP65 (with connector properly installed) Dust-tight and protected against water jets Hydraulic Fluid Mineral-based hydraulic oil to ISO 11158 Fluid Viscosity Range 10 to 400 cSt (50 to 2000 SUS) Operating Temperature Range -20°C to +70°C (-4°F to +158°F)

Key Parameters Item Parameter / Description Actuation Type Solenoid operated (single-stage) Coil Voltage 24 V DC (standard) Valve Size / Interface ISO 4401‑05 / NFPA D05 / CETOP 5 (NG10) Maximum Operating Pressure (P, A, B ports) 315 bar (≈ 4565 psi) Tank Port (T) Pressure Rating 210 bar (≈ 3045 psi) Maximum Flow Rate Up to 120 L/min (≈ 31.7 US gpm) Seal Material Viton (standard) Spool Type Spool “2AJ” Spring Arrangement Spring-centered spool Fluid Compatibility Petroleum-based hydraulic oils Fluid Cleanliness (Filtration) Recommendation 19/17/14 (micron) Operating Temperature Range –20 °C to +70 °C (–4 °F to +158 °F) Mounting Type Subplate / manifold mounted Power Consumption (Coil) 35 W

Key Parameters Item Parameter / Description Actuation Type Solenoid operated (single-stage) Coil Voltage 24 V DC (standard) Valve Size / Interface ISO 4401‑03 / NFPA D03 / CETOP 3 (NG6) Maximum Operating Pressure (P, A, B ports) 350 bar (≈ 5075 psi) Tank Port (T) Pressure Rating 210 bar (≈ 3045 psi) Maximum Flow Rate Up to 80 L/min (≈ 21 US gpm) Seal Material Viton (standard) Spool Type Spool “8C” Spring Arrangement Spring-offset spool Fluid Compatibility Petroleum-based hydraulic oils Fluid Cleanliness (Filtration) Recommendation 19/17/14 (micron) Operating Temperature Range –20 °C to +70 °C (–4 °F to +158 °F) Mounting Type Subplate / manifold mounted Power Consumption (Coil) 30 W

Parameter Description / Value Notes Product Line Eaton DG4V Second Generation Valve Type Two-Stage Proportional Directional Valve 4-way, 3-position Pilot Stage Size NG05 (CETOP 5 / NFPA D02) Main Valve Size NG10 (35 Series Body, CETOP 7/ NFPA D05 equivalent flow) The "35" indicates a larger main valve body for higher flows. Maximum Operating Pressure 350 bar (5,075 psi) Maximum Flow Rate Approx. 150 - 200 L/min (40 - 53 US gpm) Solenoid Type Proportional Solenoid (on pilot valve) Wet armature design. Feedback Type VM LVDT (Linear Variable Differential Transformer) on the main spool for closed-loop position control. Electrical Connector U (DIN 43650 Form A, 4-pin) Standard industrial connector. Integrated Electronics H6 On-board amplifier card designed for LVDT feedback valves. Input Signal ±10 VDC or 4-20 mA Selectable via internal dip-switches. Supply Voltage (to amplifier) 12-30 VDC For the H6 amplifier. IP Rating IP65 (with connector properly installed) Dust-tight and protected against water jets. Hydraulic Fluid Mineral-based hydraulic oil to ISO 11158 Fluid Viscosity Range 10 to 400 cSt (50 to 2000 SUS) Operating Temperature Range -20°C to +70°C (-4°F to +158°F)

Key Parameters Item Parameter / Description Actuation Type Solenoid operated (single-stage) Coil Voltage 24 V DC (standard) Valve Size / Interface ISO 4401‑05 / NFPA D05 / CETOP 5 (NG10) Maximum Operating Pressure (P, A, B ports) 315 bar (≈ 4565 psi) Tank Port (T) Pressure Rating 210 bar (≈ 3045 psi) Maximum Flow Rate Up to 120 L/min (≈ 31.7 US gpm) Seal Material Viton (standard) Spool Type Spool “6CJ” Spring Arrangement Spring-centered spool Fluid Compatibility Petroleum-based hydraulic oils Fluid Cleanliness (Filtration) Recommendation 19/17/14 (micron) Operating Temperature Range –20 °C to +70 °C (–4 °F to +158 °F) Mounting Type Subplate / manifold mounted Power Consumption (Coil) 35 W

Key Parameters Item Parameter / Description Valve Type Proportional directional control valve Actuation Solenoid operated Valve Size / Interface ISO 4401‑08 / NFPA D08 / CETOP 8 (NG25) Maximum Operating Pressure (P, A, B ports) 250 bar (≈ 3625 psi) Tank Port (T) Pressure Rating 100 bar (≈ 1450 psi) Maximum Flow Rate Up to 250 L/min (≈ 66 US gpm) Seal Material Viton (standard) Spool Type Direct-acting, C‑type spool Fluid Compatibility Petroleum-based hydraulic oils Fluid Cleanliness Recommendation 18/16/13 (micron) Operating Temperature Range –20 °C to +70 °C (–4 °F to +158 °F) Mounting Type Subplate / manifold mounted Electrical Connector Standard ISO 4400 / DIN 43650

Key Parameters Item Parameter / Description Actuation Type Solenoid operated (single-stage) Coil Voltage 24 V DC (standard) Valve Size / Interface ISO 4401‑03 / NFPA D03 / CETOP 3 (NG6) Maximum Operating Pressure (P, A, B ports) 350 bar (≈ 5075 psi) Tank Port (T) Pressure Rating 210 bar (≈ 3045 psi) Maximum Flow Rate Up to 80 L/min (≈ 21 US gpm) Seal Material Viton (standard) Spool Type Spool “6C” Spring Arrangement Spring-centered spool Fluid Compatibility Petroleum-based hydraulic oils Fluid Cleanliness Recommendation 19/17/14 (micron) Operating Temperature Range –20 °C to +70 °C (–4 °F to +158 °F) Mounting Type Subplate / manifold mounted Power Consumption (Coil) 30 W

Key Parameters Item Parameter / Description Valve Type Cartridge directional control valve Actuation Mechanical / Solenoid-assisted (depending on variant) Valve Size / Interface ISO / NG10 standard cartridge cavity (typical for XG2V-8 series) Maximum Operating Pressure (P, A, B ports) 350 bar (≈ 5075 psi) Tank Port (T) Pressure Rating 100 bar (≈ 1450 psi) Maximum Flow Rate Up to 100 L/min (≈ 26 US gpm) Seal Material Viton (standard) Spool Type 2-position, 4-way (FW) Fluid Compatibility Petroleum-based hydraulic oils Fluid Cleanliness Recommendation 19/17/14 (micron) Operating Temperature Range –20 °C to +70 °C (–4 °F to +158 °F) Mounting Type Subplate / manifold mounted