Bosch Rexroth | 4WP6D6XV5
4WP6D6X/V/5
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The 4WP6D6X/V/5 valve belongs to the WP Pneumatic Spool Valves series manufactured by Bosch Rexroth. It shifts hydraulic flow paths in automated machinery while being actuated pneumatically, allowing compressed air to command oil circuits. The unit is built in nominal size 6 and provides four working ports for routing pressure and return lines. Internal springs return the spool automatically when pilot air is vented. A pilot pressure window from 4 bar to 10 bar controls actuation, and the pilot chamber holds 4.24 cm³ of air to achieve consistent timing. Ports A, B, and P withstand operating pressures up to 315 bar without functional loss.
The valve passes up to 60 l/min of hydraulic fluid and keeps the T port safe up to 160 bar during continuous duty. It can cycle as often as 7 200 times per hour, supporting high-frequency positioning routines. Operation remains reliable between –20 °C and +80 °C, a range matched by the FKM sealing elements that resist heat and common fluids. System oil must meet ISO 4406 cleanliness code 20/18/15 to protect the spool from abrasion and sticking.
Technical Specifications
Actuation Type
Pneumatic
Cleanliness Class
ISO 4406 20/18/15
Max Ambient Temperature (fkm)
+80 °C
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 Ambient Temperature (fkm)
-20 °C
Min Pilot Pressure
4 bar
Nominal Size
6
Number Of Ports
4
Pilot Volume
4.24 cm3
Seal Material
FKM
Spring Return
Yes
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