Parameter Specification / Description Manufacturer & Model Eaton DGMPC-5-ABK-BAK-30 Valve Type Modular, Hydraulically Pilot-Operated Directional Control Valve (Main Valve) Series DGMPC (Modular Pilot-Operated) Size / Interface Size 05 (Mounts to ISO 4401-05 / NFPA D05 subplate) Port Size Main ports: Typically 3/4"-16 UNF, 7/8"-14 UNF, or M22x1.5. Pilot ports: Smaller (e.g., 1/4" or M12x1.5). Main Spool Type 4-Way, typically Closed Center or other custom design. The spool type is defined separately and not in this basic model code. Pilot Valve 1 Configuration ABK： Specific Eaton code for a solenoid-operated pilot valve with spring return and possibly a “K” function (e.g., check, orifice, etc.). Exact symbol must be checked. Pilot Valve 2 Configuration BAK： Mirror image or complementary function to ABK, controlling the opposite end of the main spool. Pilot Pressure Requirement Typically requires a separate, clean pilot pressure supply of 100 - 250 bar (1,450 - 3,625 psi) to effectively shift the main spool against spring and flow forces. Pilot Flow Consumption Small, typically < 1-2 l/min per shift. Main Valve Maximum Operating Pressure Up to 350 bar (5,000 psi) on main ports (P, A, B, T). Main Valve Rated Flow (ΔP = 10 bar) Approx. 75 - 120 l/min (20 - 32 US gpm) depending on main spool. Critical to check catalog. Pilot Valve Solenoid Voltage Common: DC12V, 24V, or 110V (Must be specified separately for each ABK/BAK unit). Response Time (Main Spool Shift) Slower than direct solenoid valves due to pilot fluid filling time. Typically tens to hundreds of milliseconds, depending on pilot pressure and flow. Spring-Centered Option Main spool may be spring-centered (if both pilot valves are de-energized) or detented (if one pilot valve has a detent function), depending on configuration. Recommended Fluid Mineral-based hydraulic oils to ISO 11158. Pilot supply should be well-filtered. Required Filtration Main system: ISO 4406 18/16/13. Pilot supply: Highly recommended ISO 4406 17/15/12 or better. Fluid Temperature Range -20°C to +80°C (-4°F to +176°F) for standard seals. Weight (Approx.) ~ 8-12 kg (17.6 - 26.5 lbs) depending on exact modules attached.