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The 4WP6GA6X/N/5 valve is part of the WP Pneumatic Spool Valves series manufactured by Bosch Rexroth for directional flow control in hydraulic automation. This model uses pneumatic actuation and, with valve size 6, handles a maximum flow of 60 l/min. Ports a, b, and p tolerate operating pressures up to 315 bar when mineral oil in the HL or HLP classification is the working medium. The pilot stage engages at a minimum of 4 bar and accepts up to 10 bar, with an internal pilot volume of 4.24 cm³ to ensure consistent shift forces under dynamic conditions.
All hydraulic and pneumatic connections are arranged radially, allowing compact block mounting, and the valve can be installed in any position. A manual override is provided for local spool actuation during setup or fault recovery. System oil cleanliness must reach ISO 4406 class 20/18/15 to maintain sealing surfaces. The return port T is rated for 160 bar to cope with elevated back-pressure, while the design supports a switching frequency of 7 200 cycles per hour for high-throughput machines.
Actuation
Pneumatic
Cleanliness Class (iso 4406)
20/18/15
Connections Orientation
Radial
Hydraulic Fluid
Mineral Oil (HL, HLP)
Installation Position
Any
Manual Override
Yes
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 Pilot Pressure
4 bar
Pilot Volume
4.24 cm³
Valve Size
6
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