Bosch Rexroth | 4WEH10G4X6EG24N9S2DK25L
4WEH10G4X/6EG24N9S2DK25L
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The 4WEH10G4X/6EG24N9S2DK25L valve is produced by Bosch Rexroth within the WEH Directional Spool Valves series. It directs pressure fluid toward or away from actuators in automated hydraulic circuits. The unit uses a nominal size of NG10, giving passage dimensions suited to medium flow machinery. A porting pattern of ISO 4401-05-05-0-05 aligns the subplate interface with standard manifold blocks, while the G three-position spool provides the necessary center logic for directional control. When energized by a 24 V DC coil, the two solenoids shift the spool, and discharge control S2 offers switching-time adjustment to match cylinder response. At ports P, A, and B the valve tolerates up to 280 bar and handles a maximum flow of 130 l/min under that limit. External pilot operation works between 12 bar and 250 bar, and the pilot return line Y withstands 210 bar, enabling remote control in high-pressure systems without overloading internal seals.
Fluid cleanliness must meet ISO 4406 20/18/15 so the sliding spool maintains repeatable positioning without accelerated wear. A concealed manual override identified as N9 lets maintenance staff shift the spool mechanically when electrical power is unavailable. The two-solenoid, spring-centered assembly weighs 6.8 kg, supporting direct mounting on compact power packs while remaining light enough for single-person servicing. Installation uses four M6 × 45 bolts tightened to 12.5 Nm; this clamp force keeps the subplate gasket compressed during peak line pressures. The mean time to dangerous failure is 100 years, offering long-term reliability in safety-related machines such as presses or die-casting cells.
Technical Specifications
Cleanliness Class
ISO 4406 (c) 20/18/15
Coil Voltage
24 V DC
Manual Override
Concealed (N9)
Mass (2-solenoid, Spring-centered)
6.8 kg
Max Flow (280 Bar, Symbol G)
130 l/min
Max Operating Pressure (p, A, B)
280 bar
Max Pilot Pressure
250 bar
Min Pilot Pressure (x External)
12 bar
Mounting Bolt Size
M6 x 45
Mounting Bolt Torque
12.5 Nm
Mttfd
100 years
Nominal Size
NG10
Pilot Return Y Max Pressure (external, Dc)
210 bar
Porting Pattern
ISO 4401-05-05-0-05
Spool Symbol
G (3-position)
Switching Time Adjustment
Discharge Control (S2)
1620 Old Apex Road
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