Bosch Rexroth | 4WRZE25W8-325-7X6EG24N9ETK31A1D3V
4WRZE25W8-325-7X/6EG24N9ETK31/A1D3V
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The 4WRZE25W8-325-7X/6EG24N9ETK31/A1D3V valve belongs to the WRZ Proportional Directional Valves series from Bosch Rexroth and controls flow direction in hydraulic automation systems. Integrated electronics run on a 24 V DC supply, and spool movement follows a ±10 V command signal for precise modulation. A DIN EN 175201-804 connector forms the electrical interface, while an ISO 4401-08-07-0-94 mounting surface allows direct manifold installation. The unit passes 325 l/min at a 10 bar differential and tolerates operating pressures up to 350 bar. Compatible fluids may range from 20 to 380 mm²/s in viscosity, ensuring stable operation across typical oil grades.
The pilot valve is size 6 with both supply and drain routed internally, eliminating external pilot lines. Flow reaches the spool through a 24 mm P port and exits via 25 mm A, B, or T ports matched to the rated capacity. A ZDR 6 DP0-4X/40YM-W80 pressure reducing cartridge stabilizes pilot pressure, and overall hysteresis is limited to 6 % for repeatable flow control. A concealed manual override provides local actuation when needed, and FKM seals handle elevated temperatures and aggressive media. The assembled valve weighs 18.4 kg, a consideration for mounting and service.
Technical Specifications
Command Value Input
±10 V
Electrical Connection
DIN EN 175201-804
Hysteresis (max)
6%
Manual Override
Concealed
Max Operating Pressure
350 bar
Mounting Interface
ISO 4401-08-07-0-94
Nominal Flow (Δp 10 Bar)
325 l/min
Pilot Oil Supply/drain
Internal/Internal
Pilot Valve Size
6
Port A/b/t Diameter
25 mm
Port P Diameter
24 mm
Pressure Reducing Valve
ZDR 6 DP0-4X/40YM-W80
Seal Material
FKM
Supply Voltage
24 V DC
Viscosity Range
20 to 380 mm2/s
Weight
18.4 kg
1620 Old Apex Road
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