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The 4WRL10V85M-3X/G24ETZ4/M valve is manufactured by Bosch Rexroth as part of the 4WRL Solenoid Valves series. Designed for servo-grade hydraulic automation, it converts an electrical command into proportional spool displacement to meter pressure and flow. The coil presents a resistance of 2.5 Ω at 20 °C, so a controller can predict heating effects and maintain stability. Operation is based on a 24 V DC supply, and the solenoid can draw up to 2.7 A without exceeding its limits. Electrical load is capped at 40 VA, letting standard industrial power supplies drive the device. A 100 % duty cycle permits continuous energization with no enforced cooling pauses. Connection to the coil is made through a DIN 43650/ISO 4400 plug, while an IP65 enclosure rating prevents dust ingress and water jets during machine wash-down. The assembly weighs 8.35 kg, a consideration for manifold support structures.
The valve mounts on sub-plates that follow the ISO 4401-05-05-0-94 pattern, enabling straightforward interchange with other size-10 components. With a pressure drop of 5 bar across one control edge, it delivers a nominal flow of 85 l/min; the main spool can pass up to 170 l/min when ports are fully open. The integrated pilot stage routes 4 l/min to shift the spool, providing fast response without excessive pump demand. Pilot control passages tolerate pressures to 250 bar, and the same 250 bar limit applies to the t, x, and y return lines. Working pressure on the primary p, a, and b ports reaches 350 bar to suit high-pressure circuits. Closed-loop position feedback is routed through a Pg7 four-pin transducer connector, completing the interface between hydraulic power and electronic control systems.
Coil Resistance (20 °c)
2.5 Ω
Degree Of Protection
IP65
Duty Cycle
100%
Max Flow
170 l/min
Max Pilot Pressure
250 bar
Max Power Consumption
40 VA
Max Pressure (t,x,y)
250 bar
Max Solenoid Current
2.7 A
Max Working Pressure (p,a,b)
350 bar
Mounting Pattern
ISO 4401-05-05-0-94
Nominal Flow (Δp 5 Bar/edge)
85 l/min
Pilot Valve Nominal Flow
4 l/min
Solenoid Connector
DIN 43650/ISO 4400
Supply Voltage
24 V DC
Transducer Connector
Pg7 (4P)
Weight
8.35 kg
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