Bosch Rexroth | 4WP6D6XOFV5
4WP6D6X/OF/V/5
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The 4WP6D6X/OF/V/5 valve belongs to the WP Pneumatic Spool Valves series and is manufactured by Bosch Rexroth. It directs mineral oil classified as HL or HLP to actuators in hydraulic automation systems. The porting pattern of ISO 4401-03-02-0-05 allows direct mounting to standard subplates used in machinery. A maximum operating pressure of 315 bar on pressure and work ports enables control of high-pressure circuits. The tank port withstands up to 160 bar so return line backpressure does not compromise function. A maximum flow rate of 60 l/min supports medium-capacity cylinders without excessive pressure drop. The spool can cycle up to 7 200 times per hour to accommodate rapid sequence operations. Remote actuation is provided through a G1/4 pilot port, and the pilot volume of 4.24 cm³ ensures stable shifting.
The valve operates within an ambient range of −20 °C to +80 °C when equipped with FKM seals, permitting installation in cold or warm environments. Hydraulic fluid temperature is also limited to the same −20 °C to +80 °C window to keep viscosity and seal compatibility within safe margins. System oil must meet ISO 4406 cleanliness class 20/18/15, reducing the likelihood of abrasive contamination. The pilot stage requires at least 4 bar to move the spool against spring and flow forces. It tolerates pilot pressures up to 10 bar, giving designers flexibility in selecting the control supply. Adhering to the specified temperature limits prevents seal swelling and preserves metering accuracy. The mandated oil purity minimizes silting, allowing the spool to sustain its high switching frequency across long maintenance intervals. Combining the defined pilot pressure band with controlled cleanliness helps the valve deliver consistent direction control when integrated into compact manifolds.
Technical Specifications
Ambient Temperature Max (fkm)
+80 °C
Ambient Temperature Min (fkm)
-20 °C
Cleanliness Class
ISO 4406 (c) 20/18/15
Hydraulic Fluid
Mineral Oil (HL, HLP)
Hydraulic Fluid Temp Max (fkm)
+80 °C
Hydraulic Fluid Temp Min (fkm)
-20 °C
Maximum Flow
60 l/min
Maximum Operating Pressure (a, B, P)
315 bar
Maximum Pilot Pressure
10 bar
Maximum Switching Frequency
7200 1/h
Maximum Tank Port Pressure (t)
160 bar
Minimum Pilot Pressure
4 bar
Pilot Port
G1/4
Pilot Volume
4.24 cm3
Porting Pattern
ISO 4401-03-02-0-05
1620 Old Apex Road
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