Bosch Rexroth | 4WP6V6XNV5
4WP6V6X/N/V/5
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The 4WP6V6X/N/V/5 valve is a pneumatic spool valve from Bosch Rexroth in the WP Pneumatic Spool Valves series. It directs hydraulic flow in automated circuits where compressed air operates the spool. Its porting matches ISO 4401-03-02-0-05, so it fits standard sub-plates. Pneumatic actuation handles flow rates up to 60 l/min, supporting medium-size actuators. Working ports a, b, and p tolerate pressures to 315 bar, while the tank port is rated for 160 bar. The internal pilot stage functions between 4 and 10 bar, enabling stable switching within typical air supply ranges. A maximum switching frequency of 7 200 cycles per hour supports rapid duty cycles, and a manual override is included for local operation when air control is unavailable.
The valve operates in ambient air from −20 °C to +80 °C, allowing installation in unconditioned machine halls. Hydraulic oil can also start at −20 °C, provided its viscosity stays within 2.8 to 500 mm²/s. An FKM seal set maintains elasticity across those temperatures and resists common mineral oils. Cleanliness requirements follow ISO 4406 code 20/18/15 to protect the spool from wear. Pneumatic actuation keeps electrical components outside the fluid path, reducing ignition sources in sensitive zones. Because the pilot and main stages rely on clean, correctly pressurized air and filtered oil, the valve sustains consistent performance across continuous shifts without exceeding the stated limits.
Technical Specifications
Ambient Temperature Max (fkm)
+80 °C
Ambient Temperature Min (fkm)
-20 °C
Cleanliness Class
ISO 4406 20/18/15
Hydraulic Fluid Temp Min (fkm)
-20 °C
Manual Override
Yes
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
Porting Pattern
ISO 4401-03-02-0-05
Seal Material
FKM
Type Of Actuation
Pneumatic
Viscosity Maximum
500 mm2/s
Viscosity Minimum
2.8 mm2/s
1620 Old Apex Road
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