Bosch Rexroth | 4WRZE16W6-150-7X6EG24N9ETK31A1V
4WRZE16W6-150-7X/6EG24N9ETK31/A1V
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The 4WRZE16W6-150-7X/6EG24N9ETK31/A1V proportional directional valve belongs to the WRZ Proportional Directional Valves series and is built by Bosch Rexroth for closed-loop hydraulic automation. It meters flow and switches direction by moving a precision spool that is positioned by an internal pilot stage. The valve is offered in size 16 to match medium-frame manifolds, and it delivers a nominal flow of 150 l/min when the differential pressure across the metering lands is 10 bar. A main stage housing rated for 350 bar operating pressure handles high-pressure circuits, while the mounting interface follows ISO 4401-07-06-0-94 for direct stacking. The pilot stage receives a ±10 V command signal and a 24 V DC power supply, and its solenoid can remain energized continuously because the duty cycle is 100%. Both the pilot oil supply and the pilot return are routed internally, simplifying external piping.
Contaminant control is defined by a cleanliness class of 20/18/15 according to ISO 4406, so filtration must keep particles below those limits for reliable spool motion. The product runs on mineral-based HL or HLP hydraulic oil, and the T port can tolerate up to 30 bar when the drain is internal. Environmental sealing meets IP65, and electrical hookup is made through a rectangular connector that conforms to DIN EN 175201-804. Dynamic sealing elements are produced from FKM to withstand elevated temperatures and aggressive additives found in modern fluids. The valve weighs 13.6 kg, allowing single-person handling during installation, and its compact envelope is compatible with cabinet or machine-side mounting.
Technical Specifications
Cleanliness Class (main)
20/18/15 (ISO 4406)
Command Signal Input
±10 V
Duty Cycle
100%
Electrical Connection
DIN EN 175201-804
Hydraulic Fluid
Mineral Oil (HL, HLP)
Max Operating Pressure (main)
350 bar
Max T Port Pressure (int Drain)
30 bar
Mounting Interface
ISO 4401-07-06-0-94
Nominal Flow (Δp=10 Bar)
150 l/min
Pilot Oil Drain
Internal
Pilot Oil Supply
Internal
Protection Class
IP65
Seal Material
FKM
Supply Voltage
24 V DC
Valve Size
16
Weight
13.6 kg
1620 Old Apex Road
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