Bosch Rexroth | 4WP10D3XV
4WP10D3X//V
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The 4WP10D3X//V valve belongs to the WP Pneumatic Spool Valves series and is produced by Bosch Rexroth for hydraulic automation tasks such as directional control of cylinders and motors. Its porting pattern follows ISO 4401-05-04-0-05, allowing direct mounting on standard subplates in modular manifolds. The sealing system uses FKM, so compatibility with common mineral oils and elevated temperatures is maintained. Permissible ambient conditions reach up to 70 °C, which supports installation near heat sources. Approved hydraulic fluid temperatures range from −15 °C to 80 °C, ensuring stable spool movement during cold starts and continuous high-temperature service. The recommended oil cleanliness is ISO 4406 20/18/15 to protect the precision edges of the spool from wear. A maximum operating pressure of 350 bar can be applied to ports A, B, and P, providing high force output for connected actuators. The minimum kinematic viscosity allowed is 2.8 mm²/s, which prevents excessive leakage at elevated oil temperatures.
The unit passes up to 160 l/min, so it can supply large volume actuators without excessive pressure loss. Tank port T is limited to 210 bar, which defines the back-pressure the return circuit may impose. Functional safety is supported by a mean time to dangerous failure of 150 years, reducing the frequency of mandatory replacement in critical machinery. Control oil is supplied through a G1/4 pilot port, simplifying the connection of standard fittings. The pilot stage accepts pressures between 8 bar and 160 bar, so users can match the signal pressure to available auxiliary circuits. A pilot volume of 6.9 cm³ must be filled to shift the spool, which influences response time when long hoses are used. Viscosity may reach 500 mm²/s in cold start conditions, allowing the valve to function with high-grade lubricants of varying weight.
Technical Specifications
Ambient Temp Max (fkm)
70 °C
Cleanliness Class
ISO 4406 20/18/15
Hydraulic Fluid Temp Max (fkm)
80 °C
Hydraulic Fluid Temp Min (fkm)
-15 °C
Maximum Flow
160 l/min
Maximum Operating Pressure (a/b/p)
350 bar
Maximum Tank Port Pressure (t)
210 bar
Mttfd
150 years
Pilot Oil Port Thread
G1/4
Pilot Pressure Max
160 bar
Pilot Pressure Min
8 bar
Pilot Volume
6.9 cm3
Porting Pattern
ISO 4401-05-04-0-05
Seal Material
FKM
Viscosity Max
500 mm2/s
Viscosity Min
2.8 mm2/s
1620 Old Apex Road
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