Bosch Rexroth | 4WRZ25E325-7X6EG24N9K4M
4WRZ25E325-7X/6EG24N9K4/M
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The 4WRZ25E325-7X/6EG24N9K4/M valve is produced by Bosch Rexroth within the WRZ Proportional Directional Valves series and is applied to regulate flow direction in hydraulic automation systems. It bolts to manifolds that follow the ISO 4401-08-07-0-94 mounting interface, and its port diameters are 25 mm on A, B, and T with 24 mm on P to match common pipe sizes. The unit meters a nominal flow of 325 l/min at a 10 bar differential and tolerates main line pressures up to 350 bar while restricting the return line to 250 bar. A pilot oil flow of 7 l/min moves the spool from zero to full command, and maximum hysteresis is held within 6 percent for consistent positioning. A concealed manual override permits local shifting during power loss, and the subplate-mounted body weighs 18.2 kg.
Electrical integration uses a DIN EN 175301-803 connector, and the coil housing carries IP65 protection to prevent dust ingress and water spray from affecting operation. The solenoid accepts up to 1.5 A, allowing proportional control with standard amplifiers. The valve is intended for mineral oil of the HL or HLP classes defined in DIN 51524, and system cleanliness must not exceed ISO 4406 code 20/18/15 to preserve internal clearances. NBR seals contain the fluid and resist the working pressure range stated earlier. These characteristics combine electrical compatibility, fluid specification, and sealing performance to support reliable service in high-duty hydraulic circuits.
Technical Specifications
Electrical Connection
DIN EN 175301-803
Electrical Protection
IP65
Fluid Cleanliness (main)
ISO 4406 20/18/15
Hydraulic Fluid
Mineral Oil (HL, HLP) DIN 51524
Hysteresis (max)
6%
Manual Override
Concealed
Max Coil Current
1.5 A
Max Operating Pressure (main)
350 bar
Max Return Pressure (port T)
250 bar
Mounting Interface
ISO 4401-08-07-0-94
Nominal Flow (Δp = 10 Bar)
325 l/min
Pilot Oil Flow (0 To 100% Step)
7 l/min
Port A/b/t Diameter
25 mm
Port P Diameter
24 mm
Seals
NBR
Weight (subplate Mounting)
18.2 kg
1620 Old Apex Road
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