Bosch Rexroth | H-4WEH52L5X10CW110N9S2DALV
H-4WEH52L5X/10CW110N9S2DAL/V
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The H-4WEH52L5X/10CW110N9S2DAL/V valve is manufactured by Bosch Rexroth for the WEH Directional Spool Valves series and directs flow in hydraulic automation circuits. It is arranged as a 4-way unit so one pressure line, one return line, and two actuator lines can be switched. Electro-hydraulic actuation converts an electrical pilot signal into spool movement to reduce required manual force. The spool identified by symbol L sets a defined crossover path that suits common cylinder functions. A maximum operating pressure of 350 bar permits use in high-pressure industrial systems. Fluid viscosities between 2.8 and 500 mm²/s are accepted, allowing reliable operation with a broad range of oil grades. Subplate mounting combined with an ISO 4401 porting pattern simplifies installation on standardized manifolds.
The remaining parameters establish environmental and maintenance limits. An ambient temperature window of -15 to +50 °C covers most factory floors, while fluid can run from -15 to +80 °C before seal performance is affected. System cleanliness must stay within ISO 4406 code 20/18/15 to prevent abrasive wear in the spool lands. A concealed N9 manual override lets technicians shift the valve during power loss without exposing the mechanism to dirt. The pilot return port Y tolerates up to 160 bar back pressure, supporting remote tank routing. FKM seals marked by the V option resist heat and many synthetic additives. Discharge control S2 enables switching time adjustment so response speed matches specific circuit demands.
Technical Specifications
Actuation Type
Electro-Hydraulic (WEH)
Ambient Temperature Range (fkm)
-15 to +50 °C
Cleanliness Class
ISO 4406 (20/18/15)
Hydraulic Fluid Temperature Range (fkm)
-15 to +80 °C
Manual Override
Concealed (N9)
Maximum Operating Pressure
350 bar
Mounting Type
Subplate
Pilot Return Y Max Pressure (ac)
160 bar
Porting Pattern
ISO 4401
Seal Material
FKM (V)
Spool Symbol
L
Switching Time Adjustment
Discharge Control (S2)
Viscosity Range
2.8 to 500 mm²/s
Way Configuration
4-Way
1620 Old Apex Road
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