Bosch Rexroth | 4WRZ25E325-7X6EG24N9TK4M
4WRZ25E325-7X/6EG24N9TK4/M
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The 4WRZ25E325-7X/6EG24N9TK4/M proportional directional valve belongs to the WRZ Proportional Directional Valves series and is produced by Bosch Rexroth for controlling flow and direction in hydraulic automation circuits. The body is built in valve size 25, which gives adequate passage area for demanding service, and it can deliver a nominal flow of 325 l/min at a 10 bar pressure drop. System pressure capability reaches 350 bar, allowing use in high-pressure installations. The mounting interface follows ISO 4401-08-07-0-94, so it bolts directly to standardized manifolds without adapters. Flow logic is defined by spool symbol E, establishing the metering relationship between supply and work ports. Both A, B, and T ports have a 25 mm diameter while the P inlet measures 24 mm to balance supply velocity with return capacity. A concealed manual override identified as N9 lets maintenance personnel shift the spool by hand when electrical power is unavailable.
The solenoid operates from a 24 V DC supply so the valve connects readily to common PLC outputs, and wiring is made through a DIN EN 175301-803 K4 connector that provides quick plug-in electrical termination. An IP65 ingress rating protects internal components against dust and low-pressure water jets encountered on machinery. The control stage receives pilot oil from an external source, which isolates spool positioning from main line pressure, while the pilot drain is routed internally to minimize external hoses. Port T can withstand up to 30 bar, setting the limit for back-pressure when the internal drain path is used. All dynamic seals are molded from NBR material, ensuring compatibility with standard mineral hydraulic fluids. The valve is supplied on a subplate that weighs 18.2 kg, a factor to consider for handling during installation and service.
Technical Specifications
Electrical Connection
DIN EN 175301-803 (K4)
Ip Rating
IP65
Manual Override
Concealed (N9)
Max Main Valve Pressure
350 bar
Max Port T Pressure (int Drain)
30 bar
Mounting Interface
ISO 4401-08-07-0-94
Nominal Flow (10 Bar Δp)
325 l/min
Pilot Drain
Internal
Pilot Supply
External
Port Diameter A/b/t
25 mm
Port Diameter P
24 mm
Seal Material
NBR (M)
Spool Symbol
E
Supply Voltage
24 V DC
Valve Size
25
Weight (subplate)
18.2 kg
1620 Old Apex Road
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