Bosch Rexroth | 4WHD10C3XV12
4WHD10C3X/V/12
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The 4WHD10C3X/V/12 directional spool valve belongs to the WHD Directional Spool Valves series produced by Bosch Rexroth for hydraulic automation circuits. A nominal size of 10 (NG10) aligns its ports with standard manifold passages, and a maximum flow rate of 120 l/min permits medium-capacity actuator control. The valve sustains 315 bar on ports P, A, and B, allowing high-pressure operation. A spool stroke of 5.5 mm opens the flow paths fully, while a control volume of 3.83 cm³ specifies the pilot oil displaced for each shift. Reliable actuation starts at a pilot oil pressure of 10 bar and can be driven up to 100 bar, giving flexibility to low- or high-pressure pilot circuits.
The unit tolerates ambient temperatures up to 80 °C, so it can be mounted near heat sources. Fluid cleanliness must reach class 20/18/15 under ISO 4406 to limit wear. Because the installed position can be any, orientation does not affect performance. The mounting pattern ISO 4401-05-04-0-05 matches common subplates, streamlining installation. When fluid reaches 170 °C, internal passages are limited to 100 bar, and the T port may carry up to 160 bar when temperature stays at or below 80 °C. Acceptable viscosity ranges from 2.8 mm²/s to 500 mm²/s, covering most mineral and synthetic oils, and FKM seals resist heat and chemical attack within this envelope.
Technical Specifications
Ambient Temperature Max
80 °C
Control Volume
3.83 cm³
Flow Rate Max
120 l/min
Fluid Cleanliness (iso 4406)
20/18/15
Installed Position
Any
Mounting Pattern
ISO 4401-05-04-0-05
Nominal Size
10 (NG10)
Operating Pressure Max (170 °c)
100 bar
Operating Pressure Max (p,a,b)
315 bar
Pilot Oil Pressure Max
100 bar
Pilot Oil Pressure Min
10 bar
Seal Material
FKM
Spool Stroke
5.5 mm
T-port Pressure Max (≤80 °c)
160 bar
Viscosity Max
500 mm²/s
Viscosity Min
2.8 mm²/s
1620 Old Apex Road
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