Bosch Rexroth | 4WRZE16W8-150-7X6EG24N9EK31A1D3M
4WRZE16W8-150-7X/6EG24N9EK31/A1D3M
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The 4WRZE16W8-150-7X/6EG24N9EK31/A1D3M is a proportional directional valve produced by Bosch Rexroth for the WRZ Proportional Directional Valves series. It modulates flow and direction in hydraulic automation circuits that require precise actuation. The unit is built in valve size 16, and it incorporates a W8 spool to define its metering characteristics. At a differential pressure of 10 bar the nominal flow reaches 150 l/min, while the maximum attainable flow is 460 l/min. The valve tolerates operating pressures up to 350 bar so it can be installed on high-pressure manifolds. Return lines are limited to 250 bar at port T and 30 bar at port Y, which protects the housing against backpressure. Installation follows the ISO 4401-07-06-0-94 porting pattern to ensure interchangeability with standardized subplates.
The electronic section is powered from a 24 VDC supply and accepts a ±10 V command input signal to proportionally shift the spool. A cold coil resistance of 2 Ω defines the initial current draw, and current consumption does not exceed 1.8 A during full-stroke operation. The coil may run safely up to 150 °C, allowing short-term overloads without damage. Electrical connection is made through a DIN EN 175201-804 plug, which maintains an IP65 protection rating when the counterpart connector is properly seated. The assembly weighs 13.6 kg, a consideration for mounting hardware and support structures.
Technical Specifications
Coil Resistance (cold)
2 Ω
Command Input Signal
±10 V
Connector Type
DIN EN 175201-804
Current Consumption (max)
1.8 A
Max Coil Temperature
150 °C
Maximum Flow
460 l/min
Nominal Flow
150 l/min (∆p=10 bar)
Operating Pressure (max)
350 bar
Porting Pattern
ISO 4401-07-06-0-94
Protection Rating
IP65
Return Pressure Port T (max)
250 bar
Return Pressure Port Y (max)
30 bar
Spool Type
W8
Supply Voltage
24 VDC
Valve Size
16
Weight
13.6 kg
1620 Old Apex Road
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