Bosch Rexroth | 4WRZE16W6-150-7X6EG24N9EK31F1D3M
4WRZE16W6-150-7X/6EG24N9EK31/F1D3M
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The 4WRZE16W6-150-7X/6EG24N9EK31/F1D3M is a proportional directional valve produced by Bosch Rexroth within the WRZ Proportional Directional Valves series. It meters hydraulic flow and changes circuit direction in automated machinery. The valve is built in size 16, a dimension that defines the spool diameter and compatible sub-plate footprint. A porting pattern of ISO 4401-07-06-0-94 lets the unit bolt directly to standardized manifolds without adapters. Nominal flow reaches 150 l/min at a 10 bar pressure drop, so high-capacity actuators can move at their required speed. The main ports withstand operating pressures up to 350 bar, making the valve suitable for high-pressure systems. Return flow may see up to 250 bar on port t, allowing use with back-pressure-controlled tank circuits. Pilot drain pressure is limited to 30 bar on port y to protect the pilot stage. A pilot oil flow of 5.5 l/min and a related pilot oil volume of 4.6 cm³ for a 0–100 % step move the spool rapidly while keeping control energy low.
Control electronics receive a 4 to 20 mA command signal so the valve can follow standard process control loops. The solenoid coil operates from a 24 V DC supply, drawing a continuous current of up to 1.8 A during steady modulation. A 3 A power pulse is available at actuation to overcome initial static friction and shorten response time. Electrical connection is realized through a DIN EN 175201-804 plug, providing a secure seven-pin interface for power, feedback, and ground. Coil insulation tolerates temperatures up to 150 °C, permitting operation near hot manifolds. An IP65 protection rating shields internal parts from dust ingress and low-pressure water jets when the connector is properly installed. Total mass is 13.6 kg, so mounting surfaces must support this load without deflection while preserving alignment.
Technical Specifications
Command Signal
4 to 20 mA
Current Consumption (max)
1.8 A
Electrical Connection
DIN EN 175201-804
Max Coil Temperature
150 °C
Max Operating Pressure (main)
350 bar
Max Pilot Drain Pressure (y)
30 bar
Max Return Pressure (t)
250 bar
Nominal Flow @ 10 Bar
150 l/min
Pilot Oil Flow (0-100% Step)
5.5 l/min
Pilot Oil Volume (0-100% Step)
4.6 cm³
Porting Pattern
ISO 4401-07-06-0-94
Power Pulse Current
3 A
Size
16
Supply Voltage
24 V DC
Type Of Protection
IP65
Weight
13.6 kg
1620 Old Apex Road
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