The 3-Spool P40 Hydraulic Directional Control Valve is a high-performance monoblock fluid power management system engineered for precise manual control of up to three independent hydraulic circuits. Built for demanding agricultural, construction, and material handling machinery, this valve features a rugged cast iron chassis treated with a protective phosphating layer to ensure maximum resistance against impacts, scratches, and severe environmental wear. Delivering a rated flow rate of 40 liters per minute (8.8 GPM) and operating efficiently within a wide temperature range of -20°C to 80°C, it provides smooth, coordinated hydraulic distribution. Security and longevity are reinforced by an integrated adjustable safety overflow valve (5–31.5 MPa range), a unidirectional internal check valve to prevent backflow, and precision-machined anti-leak sealed grooves that isolate individual oil chambers. Outfitted with ergonomic manual levers and an automatic spring-return safety mechanism, this 1/2" BSPP ported valve ensures responsive, fatigue-free operational control for heavy-duty engineering tasks. Key FeaturesMulti-Circuit Coordination: Controls up to three separate hydraulic cylinders or motors independently or simultaneously, optimizing fluid distribution and boosting overall machine efficiency. Cast Iron Phosphated Architecture: Molded from premium-grade cast iron treated with a specialized phosphating layer, offering superior impact, scratch, and wear resistance in harsh outdoor environments. Adjustable Pressure Regulation: Features an integrated safety overflow valve that allows mechanics to tune system pressure easily by removing the protective plug and adjusting the internal screw (clockwise to increase, counterclockwise to decrease pressure). Anti-Leak Sealed Grooves: Designed with precision-machined internal grooves that isolate individual oil chambers, preventing internal cross-leakage and maintaining solid pressure parameters. Ergonomic Spring-Return Controls: Lever control mechanics are fitted with a spring-return safety mechanism that snaps back to the neutral position upon release, mitigating operational errors and reducing physical operator fatigue. Built-in Circuit Protection: Features an internal check valve to guarantee one-way fluid movement, protecting delicate pumps and lines from sudden pressure drops or reverse-flow damage. SpecificationsItem Type: 3-Spool Hydraulic Directional Monoblock Control Valve Model Baseline: P40 Series Material Composition: Cast Iron with Phosphating Surface Treatment Control Configuration: Manual Control Levers with Spring Return Rated / Maximum Flow Rate: 40 L/min (8.8 GPM) Safety Overflow Valve Range: 5 – 31.5 MPa (Adjustable) Port Sizes (A, B Working Ports): 1/2" BSPP System Port Sizes (P Inlet, T Tank, N Power Beyond): 1/2" BSPP Filtration Accuracy Rating: Less than or equal to 10 μm Operating Temperature Limits: -20°C to 80°C (-4°F to 176°F) Product Weight: Net Weight: 5.89 kg (12.99 lbs) | Gross Weight: 6.2 kg (13.67 lbs) Physical Footprint: 21.1 x 17.8 x 27 cm (8.31 x 7.01 x 10.63 in) Package Dimensions: 23 x 19 x 10 cm (9.06 x 7.48 x 3.94 in) Included Components1 x 3-Spool P40 Hydraulic Directional Control Valve Block assembly (Levers and fittings integrated or packaged as standard)