Bosch Rexroth | 4WH6D5XV5
4WH6D5X//V/5
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The 4WH6D5X//V/5 directional spool valve is produced by Bosch Rexroth for the WEH Directional Spool Valves series and directs flow paths in hydraulic automation. It uses hydraulic actuation so pilot oil shifts the internal spool. A nominal size 6 passage defines the flow section, and subplate mounting permits quick removal from a manifold. The ISO 4401-03-02-0-05 porting pattern aligns with common base plates, while four radial control ports keep piping compact. Spool symbol D fixes the flow positions needed for typical cylinder control, and a return spring re-centers the spool when pilot force drops.
The valve carries up to 60 l/min to serve medium-flow actuators and withstands 315 bar on ports a, b, and p, with port T limited to 160 bar to protect the tank line. The pilot stage accepts 200 bar, and a pilot volume of 1.23 cm³ gives fast shifts, supporting a switching frequency of 7200 cycles per hour. FKM seals hold fluid between −20 °C and +80 °C so leakage is controlled across standard operating temperatures. These characteristics establish the valve as a stable element for directional control in automated hydraulic equipment.
Technical Specifications
Actuation Type
Hydraulic
Control Ports
Radial
Max Flow
60 l/min
Max Hydraulic Fluid Temp (fkm)
+80 °C
Max Operating Pressure (a/b/p)
315 bar
Max Pilot Pressure
200 bar
Max Pressure Port T
160 bar
Max Switching Frequency
7200 1/h
Min Hydraulic Fluid Temp (fkm)
-20 °C
Mounting Type
Subplate
Nominal Size
6
Pilot Volume
1.23 cm³
Porting Pattern
ISO 4401-03-02-0-05
Ports
4
Return Spring
Yes
Seal Material
FKM
Spool Symbol
D
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