Bosch Rexroth | 4WP6D6XN
4WP6D6X/N
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The 4WP6D6X/N valve belongs to the WP Pneumatic Spool Valves series from Bosch Rexroth and directs oil flow in hydraulic automation when pilot air shifts the internal spool. Its size 6 body suits compact manifolds, and a D-coded spool forms the required four-way flow pattern. The porting pattern follows DIN 24340 Form A for standardized mounting, while pneumatic actuation removes the need for electrical control gear. Four main ports connect pressure, tank, and actuator lines, and radial connections let hoses or tubes enter from the sides of the block. The pilot chamber volume is 4.24 cm³, so air demand stays low yet response is quick. Switching can repeat up to 7 200 times per hour, supporting high-cycle machinery.
The pilot supply must reach at least 4 bar and can rise to 10 bar; once shifted, ports A, B, and P withstand 315 bar while port T is limited to 160 bar. The metering lands pass up to 60 l/min, providing adequate flow for medium actuators. Cleanliness class ISO 4406 20/18/15 defines the filtration level needed to protect the spool. NBR seals retain fluid and air without swelling. A manual override lets technicians move the spool during setup or troubleshooting, even if pilot air is absent. These features make the valve suitable for repetitive, high-pressure motion tasks in industrial hydraulic systems.
Technical Specifications
Actuation Type
Pneumatic
Cleanliness Class
ISO 4406 20/18/15
Connections
Radial
Main Ports
4
Manual Override
Yes
Max Flow
60 l/min
Max Operating Pressure (a/b/p)
315 bar
Max Pilot Pressure
10 bar
Max Port T Pressure
160 bar
Max Switching Frequency
7200 1/h
Min Pilot Pressure
4 bar
Pilot Volume
4.24 cm3
Porting Pattern
DIN 24340 Form A
Seal Material
NBR
Size
6
Spool Symbol
D
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