Bosch Rexroth | 4WP6L6XN
4WP6L6X/N
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The 4WP6L6X/N valve belongs to the WP Pneumatic Spool Valves series from Bosch Rexroth and directs hydraulic flow in automated machinery. Its actuation is pneumatic, allowing the spool to shift by compressed air rather than by an electric coil. Size 6 defines the internal passage dimensions so the valve can handle the specified flow range. The ISO 4401-03-02-0-05 (NFPA D03) porting pattern matches standard subplates for quick installation. Radial connections bring the pressure, work, and tank lines out to the sides, simplifying manifold routing. A clamping length of 42 mm fixes the stack height within modular blocks. The valve may be mounted in any position, which eases layout in tight panels. NBR seals contain mineral oil without swelling, and the cleanliness class of 20/18/15 keeps particulate levels low for dependable switching.
A manual override lets technicians shift the spool by hand during setup or fault recovery. The valve passes up to 60 l/min, giving enough capacity for medium-sized actuators. Ports a, b, and p endure 315 bar, while the tank port remains safe at 160 bar, preserving return-line components. The pilot stage works between 4 bar and 10 bar, so standard shop air can control the main spool without overstressing it. Pilot volume is 4.24 cm³, limiting air consumption while still moving the spool quickly. A maximum switching frequency of 7200 cycles per hour supports fast, repetitive motions in automated duty.
Technical Specifications
Actuation Type
Pneumatic
Clamping Length
42 mm
Cleanliness Class (iso 4406)
20/18/15
Connections
Radial
Installation Position
Any
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
Pilot Volume
4.24 cm3
Porting Pattern
ISO 4401-03-02-0-05 (NFPA D03)
Seal Material
NBR
Size
6
1620 Old Apex Road
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