Bosch Rexroth | 4WEH25J6X6EG24N9ETSK4B10V
4WEH25J6X/6EG24N9ETSK4/B10V
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The 4WEH25J6X/6EG24N9ETSK4/B10V valve is part of the WEH Directional Spool Valves series from Bosch Rexroth and provides electro-hydraulic actuation to shift flow paths in automated hydraulic machinery. This NG25 size, 4-way configuration handles large circuit volumes and can direct pressure to two working lines or block all ports when centered. A J-type 3-position spool establishes the required mid-position logic, while the ISO 4401-08-08-0-05 porting pattern aligns with standardized subplates for straightforward mounting. Electrical control relies on a 24 V DC coil, and the DIN EN 175301-803 K4 connector offers quick plug-in wiring. For maintenance or emergency movement, a concealed N9 manual override lets personnel shift the spool without energizing the solenoid.
The integrated pilot stage carries the 6E high-power rating to assure rapid shifting even against high loads, and an internal ET oil supply and return removes the need for external pilot lines. Operating ports p, a, and b tolerate pressures up to 280 bar, while the pilot circuit withstands 250 bar and still functions down to 13 bar when the spool is spring-centered. Supply-side adjustment marked S allows fine tuning of switching time to match machine dynamics. A 1.0 mm b10 throttle orifice moderates pilot flow for stable motion, and FKM seals resist high-temperature hydraulic fluids to maintain long-term leak tightness.
Technical Specifications
Actuation
Electro-Hydraulic
Coil Voltage
24 V DC
Electrical Connector
DIN EN 175301-803 (K4)
Manual Override
Concealed (N9)
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
250 bar
Min Pilot Pressure (spring-centered)
13 bar
Pilot Oil Supply/return
Internal (ET)
Pilot Valve Rating
High-Power (6E)
Porting Pattern
ISO 4401-08-08-0-05
Seal Material
FKM (V)
Spool Symbol
J (3-Position)
Switching Time Adjustment
Supply Control (S)
Throttle Orifice (b10)
1.0 mm
Valve Size
NG25 (W.H 25)
Valve Version
4-Way
1620 Old Apex Road
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