Bosch Rexroth | 4WP6J6XNV5
4WP6J6X/N/V/5
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The 4WP6J6X/N/V/5 spool valve is manufactured by Bosch Rexroth as part of the WP Pneumatic Spool Valves series and is intended to shift hydraulic flow paths in automated machinery via a pneumatic pilot. Its valve size of 6 fits standard sub-plate layouts while the ISO 4401-03-02-0-05 porting pattern aligns the pressure, tank, and work connections for interchangeable mounting. Four main ports give two service lines plus supply and return, and a maximum flow of 60 l/min lets the valve serve medium-capacity actuators without excessive pressure loss. Working ports A, B, and P can be loaded up to 315 bar, so the component manages high system pressures common in industrial hydraulics, whereas the tank port tolerates up to 160 bar to protect return circuits. Spool movement is controlled by a pneumatic pilot that must stay between 4 and 10 bar; this range ensures reliable shifting without overstressing the pilot seals. A switching frequency ceiling of 7 200 cycles per hour supports rapid, repetitive duty in servo-controlled sequences.
Continuous service is supported in environments from −20 °C to +80 °C, and the same +80 °C limit applies to hydraulic fluid, reflecting the thermal capability of the FKM seal set. The cleanliness requirement of ISO 4406 20/18/15 limits particulate contamination so the spool lands do not stick or erode during high-cycle use. The valve includes a manual override, allowing technicians to actuate the spool directly during setup or when the pneumatic pilot is unavailable. Pneumatic actuation keeps electrical components out of the hydraulic manifold, and the FKM elastomers maintain sealing integrity against oils across the stated temperature range. These features, combined with the pilot pressure window and high switching rate, make the 4WP6J6X/N/V/5 suitable for precise, high-duty hydraulic control where clean oil and tight thermal limits are maintained.
Technical Specifications
Ambient Temperature Max (fkm)
+80 °C
Ambient Temperature Min (fkm)
-20 °C
Cleanliness Class
ISO 4406 (c) 20/18/15
Hydraulic Fluid Temperature Max (fkm)
+80 °C
Main Ports
4
Manual Override
Yes
Max Flow
60 l/min
Operating Pressure Max (a, B, P)
315 bar
Pilot Pressure Max
10 bar
Pilot Pressure Min
4 bar
Porting Pattern
ISO 4401-03-02-0-05
Seal Material
FKM
Switching Frequency Max
7200 1/h
Tank Port Pressure Max (t)
160 bar
Type Of Actuation
Pneumatic
Valve Size
6
1620 Old Apex Road
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