Bosch Rexroth | 4WRZ25E325-7X6EG24N9TK4D3M
4WRZ25E325-7X/6EG24N9TK4/D3M
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The 4WRZ25E325-7X/6EG24N9TK4/D3M proportional directional valve belongs to the WRZ Proportional Directional Valves series from Bosch Rexroth and modulates flow and pressure in automated hydraulic drives. With size 25 ports, it delivers up to 325 l/min at a differential pressure of 10 bar, allowing high-volume actuation of cylinders or motors. The main stage tolerates working pressures to 350 bar, so it can be installed in heavy-duty power units. External pilot oil supply keeps the control stage decoupled from load pressure, while an internal pilot oil drain routes pilot fluid back without extra plumbing. Return flow from port T is limited to 250 bar when piped externally and 30 bar when routed internally, preventing undue back-pressure on tank lines. These flow and pressure limits let the valve maintain consistent actuator speed and directional control in presses, injection machines, and similar equipment.
The valve accepts a DIN EN 175301-803 electrical plug, and its solenoid draws a maximum of 1.5 A, matching common industrial drivers. A coil temperature limit of 150 °C protects winding insulation during continuous duty, and the IP65 housing rating shields internal parts from dust and water jets. A concealed manual override permits emergency positioning without exposing moving parts. Fluid cleanliness must not exceed class 20/18/15 according to ISO 4406, and the recommended medium is mineral oil type HL or HLP conforming to DIN 51524, which preserves spool clearances. The ISO 4401-08-07-0-94 porting pattern simplifies stacking with subplates, and an integrated D3 pressure-reducing valve stabilizes pilot pressure for smooth proportional response.
Technical Specifications
Cleanliness Class (main Valve)
20/18/15 (ISO 4406)
Electrical Connection
DIN EN 175301-803
Hydraulic Medium
Mineral Oil (HL, HLP) to DIN 51524
Manual Override
Concealed
Max Coil Temperature
150 °C
Max Current
1.5 A
Max Operating Pressure (main)
350 bar
Nominal Flow (∆p = 10 Bar)
325 l/min
Pilot Oil Drain
Internal
Pilot Oil Supply
External
Porting Pattern
ISO 4401-08-07-0-94
Pressure Reducing Valve
D3 Included
Return Flow Pressure (port T, External)
250 bar
Return Flow Pressure (port T, Internal)
30 bar
Size
25
Type Of Protection
IP65
1620 Old Apex Road
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