Bosch Rexroth | 4WP6FB6XV5
4WP6FB6X/V/5
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The 4WP6FB6X/V/5 is a spool valve in the WP Pneumatic Spool Valves series produced by Bosch Rexroth for directional control in hydraulic automation. It uses pneumatic actuation to shift the internal spool, allowing four main ports to exchange flow between actuator and supply lines. Spool position B determines the default flow path, while spool symbol F identifies the functional logic for circuit diagrams. The valve handles a maximum flow of 60 l/min so it can service medium-sized cylinders without excessive pressure drop. Ports A, B, and P tolerate operating pressures up to 315 bar, and the tank port sustains 160 bar to suit high-pressure return circuits. Fast response is supported by a switching frequency of 7200 cycles per hour, maintaining precise motion control during rapid sequences.
Pilot control requires a pressure between 4 and 10 bar, and a pilot volume of 4.24 cm³ ensures the spool shifts fully at each command. A clamping length of 42 mm matches standard manifold cavities for compact block mounting. Radial connections orient the port fittings outward, simplifying line routing in dense assemblies. The valve can be installed in any position, giving freedom to place it wherever space permits on the machine frame. An ISO 4406 cleanliness class of 20/18/15 is specified for the working fluid to protect internal lands from abrasion. FKM seals are used to resist mineral oil and elevated temperature common in hydraulic power units.
Technical Specifications
Actuation Type
Pneumatic
Clamping Length
42 mm
Connections Orientation
Radial
Fluid Cleanliness Class
ISO 4406 20/18/15
Installation Position
Any
Main Ports
4
Maximum Flow
60 l/min
Maximum Operating Pressure (ports 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
Seal Material
FKM
Spool Position
B
Spool Symbol
F
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