1 Spool Solenoid 12V DC Hydraulic Control Valve Double Acting 13 GPM 3600 PSI. Model p40(20)-ODU1-M1. Key SpecificationsType: Monoblock directional control valveSeries: P40, known for middle-high pressure applicationsNominal Flow Rate: 40 L/min (10.6 GPM), typical for P40 seriesMaximum Pressure:P (Pressure Port): 315 bar (4568 PSI) standard, though some models are rated at 250 bar (3625 PSI)A/B (Work Ports): 300 bar (4350 PSI)T (Tank Port): 25-50 bar (362-725 PSI)Spool Configuration:Number of Spools: 1 spool, inferred from “U1″ and typical P40 single-spool modelsSpool Type:O: Likely indicates an open center spool, allowing fluid to return to the tank in neutral, suitable for fixed-displacement pumpsD: May denote a motor spool (D-type), designed for hydraulic motors to prevent cavitation, or a detent mechanismU1: Likely a single-acting spool for one-way cylinders e. Lift-only applications or a custom spool function. Without exact documentation, U1 may indicate a specialized control or centering mechanism. M1: Likely specifies manual control with a spring-centered mechanism (3-position, spring return to neutral). M1 could also denote a specific handle or mounting configuration.