Bosch Rexroth | 4WRZE16E150-7X6EG24ETK31A1D3M
4WRZE16E150-7X/6EG24ETK31/A1D3M
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The 4WRZE16E150-7X/6EG24ETK31/A1D3M valve is manufactured by Bosch Rexroth and belongs to the WRZ Proportional Directional Valves series. It meters hydraulic flow to automate cylinders or motors and mounts on a subplate that follows the ISO 4401-07-06-0-94 pattern, allowing direct substitution within standardized manifolds. A nominal flow of 150 l/min at a 10 bar pressure drop supports medium-size actuator circuits, while the main stage tolerates up to 350 bar so system pressure can be fully utilized. The internal drain line may reach 30 bar at port T, a figure that guides tank line sizing. Operation is permitted between -20 °C and 50 °C ambient, covering most plant climates, and NBR seals maintain leakage control with common mineral oils. An IP65 enclosure prevents dust ingress and low-pressure water jets, and the assembly weighs 13.6 kg, which determines manifold reinforcement and lifting method during installation.
The unit’s on-board electronics are powered by a 24 V DC supply, drawing up to 1.8 A, while the proportional solenoid accepts a separate peak current of 2.5 A to generate the required spool force. Command signals arrive as a ±10 V differential input, enabling closed-loop controllers to dictate spool position over the full stroke. The solenoid winding measures 2 Ω at 20 °C, so current rise can be predicted during driver design, and the insulation system withstands coil temperatures as high as 150 °C, preventing thermal degradation under continuous duty. Electrical hookup is made through a connector conforming to DIN EN 175201-804, simplifying harness selection. These electrical characteristics integrate with the hydraulic parameters described earlier to deliver proportional flow control without mechanical feedback devices.
Technical Specifications
Command Input
±10 V (A1)
Electrical Connection
DIN EN 175201-804
Max Ambient Temperature
50 °C
Max Coil Temperature
150 °C
Max Main Valve Pressure
350 bar
Max Port T Pressure (internal Drain)
30 bar
Max Solenoid Current
2.5 A
Min Ambient Temperature
-20 °C
Mounting Pattern
ISO 4401-07-06-0-94
Nominal Flow (10 Bar Δp)
150 l/min
Obe Max Current Consumption
1.8 A
Protection Class
IP65
Seal Material
NBR
Solenoid Resistance (20 °c)
2 Ω
Supply Voltage
24 V DC
Weight
13.6 kg
1620 Old Apex Road
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