Bosch Rexroth | 4WRZE25E1-325-7X6EG24K31A1D3M
4WRZE25E1-325-7X/6EG24K31/A1D3M
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The 4WRZE25E1-325-7X/6EG24K31/A1D3M valve belongs to the WRZ Proportional Directional Valves series manufactured by Bosch Rexroth for closed-loop hydraulic automation. It meters flow based on an analog reference signal; a ±10 V command value input lets motion controllers dictate spool position while a proportional detachable coil interprets the signal. The coil draws up to 1.8 A from a 24 V DC supply, and continuous 100 % duty cycle operation is allowed because the winding tolerates 150 °C. A nominal flow of 325 l/min is achieved at a 10 bar differential, and the body is rated for 350 bar system pressure. Subplate mounting aligns the valve with the ISO 4401-08-07-0-94 porting pattern, and a pilot stage size 6 helps maintain stable modulation during high-flow shifts.
The electrical interface relies on a DIN EN 175201-804 K31 connector, and no manual override is provided, so every shift must be commanded electronically. Port T can handle 250 bar when drained externally, while port Y is limited to 30 bar, guiding the design of return lines and case drains. The assembly weighs 18.4 kg in subplate form, which affects lifting practice and manifold support. With these limits on return-line pressure, flow, and mass, the valve offers predictable throttling accuracy and reliable service in modern hydraulic machinery.
Technical Specifications
Command Value Input
±10 V
Duty Cycle
100%
Electrical Connection
DIN EN 175201-804 (K31)
Manual Override
None
Max Coil Temperature
150 °C
Max Current Consumption
1.8 A
Max Operating Pressure
350 bar
Max Port T Pressure (external)
250 bar
Max Port Y Pressure
30 bar
Mounting Type
Subplate Mounting
Nominal Flow (Δp=10 Bar)
325 l/min
Pilot Valve Size
6
Porting Pattern
ISO 4401-08-07-0-94
Solenoid Type
Proportional (Detachable Coil)
Supply Voltage
24 V DC
Weight (subplate Mounting)
18.4 kg
1620 Old Apex Road
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