Bosch Rexroth | 4WHD10Q3X12
4WHD10Q3X/12
Request a Quote
Call For Quote
What Happens Next?
Email Confirmation
You will get an email confirming we have received your inquiry.
Dedicated Account Manager
A team member will review your request and be in touch concerning any questions or specifications.
Quote Delivered
You will receive a comprehensive quote tailored to your specific needs.
The 4WHD10Q3X/12 valve is produced by Bosch Rexroth within the WHD Directional Spool Valves series. It directs hydraulic flow in automated circuits and handles a maximum flow rate of 120 l/min to accommodate medium-capacity actuators. The control volume of 3.83 cm³ defines the pilot oil required for each switching event, while a spool stroke of 5.5 mm shifts the flow paths between ports. A cross-section of 5.5 mm² between ports A or B and T limits pressure drop when the valve is opened. The main ports A and B can be pressurized up to 315 bar, and the tank port T withstands up to 160 bar, allowing operation in high-pressure systems. The pilot stage accepts pressures from 10 to 100 bar, so a wide range of pilot sources can actuate the spool.
The valve mounts to subplates with an ISO 4401-05-04-0-05 interface, and the retaining screws require 9 N·m of torque to secure leak-free sealing. Approved hydraulic media include HL, HLP, HETG, HEPG, and HEES, offering compatibility with mineral and biodegradable oils. Viscosity may vary between 2.8 and 500 mm²/s, giving flexibility in fluid selection without compromising switching speed. Service temperatures can range from −20 °C to +80 °C, enabling outdoor or elevated-temperature installations. Delivered cleanliness is ISO 4406 class 20/18/15, which minimizes spool wear and ensures reliable movement.
Technical Specifications
Control Volume
3.83 cm3
Cross-section (symbol Q)
5.5 mm2 (A/B->T)
Fastening Torque
9 Nm
Flow Rate Max
120 l/min
Fluid Temperature Max
+80 °C
Fluid Temperature Min
-20 °C
Hydraulic Fluids
HL, HLP, HETG, HEPG, HEES
Max Operating Pressure (p, A, B)
315 bar
Max Operating Pressure (t)
160 bar
Mounting Interface
ISO 4401-05-04-0-05
Pilot Pressure Max
100 bar
Pilot Pressure Min
10 bar
Purity Class
ISO 4406 (c) 20/18/15
Spool Stroke
5.5 mm
Viscosity Max
500 mm2/s
Viscosity Min
2.8 mm2/s
1620 Old Apex Road
Shipping & Payment Options
