Bosch Rexroth | 4WRPEH6CB40L-3XM24A1
4WRPEH6CB40L-3X/M/24A1
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The 4WRPEH6CB40L-3X/M/24A1 proportional directional valve is part of the 4WRP Solenoid Valves series produced by Bosch Rexroth. It meters hydraulic flow for closed-loop automation tasks. The valve accepts a ±10 V analog command signal, and the input circuit presents more than 100 kΩ resistance to the control electronics. A 24 V DC supply energizes the onboard electronics through a 7-pin (6+PE) connector that follows EN 175201-804. The component weighs 2.9 kg, which makes handling manageable during manifold assembly. A linear flow characteristic and a rated flow of 40 l/min at a 35 bar control edge support precise actuator speed control. The spool is designated by symbol C, and it mounts on a subplate with the ISO 4401-03-02-0-05 porting pattern.
System limits include a maximum pressure of 350 bar at ports p, a, and b, while the tank port tolerates up to 250 bar. For continuous duty at 40 l/min, pressure drop should stay within a 160 bar limit. The solenoid surface may reach 150 °C during operation, so wiring must be heat-rated. Clean hydraulic oil meeting ISO 4406 class 18/16/13 cleanliness is required to prevent wear on the NBR seals. A position transducer is installed on side B to relay spool position to the drive electronics and close the control loop. The valve body carries a linear flow path that remains stable within the stated limits, rounding out the performance data.
Technical Specifications
Cleanliness Class
ISO 4406 (c) 18/16/13
Command Input
±10 V (A1)
Command Input Resistance
>100 kΩ
Electrical Connector
7-pin (6+PE) per EN 175201-804
Flow Characteristic
Linear
Limitation Of Use Δp (c, 40 L/min)
160 bar
Mass
2.9 kg
Max Pressure (p,a,b)
350 bar
Max Pressure (t)
250 bar
Max Solenoid Surface Temperature
150 °C
Porting Pattern
ISO 4401-03-02-0-05
Position Transducer Side
B
Rated Flow
40 l/min (Δp=35 bar/control edge)
Seal Material
NBR
Spool Symbol
C
Supply Voltage
24 V DC
1620 Old Apex Road
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