Bosch Rexroth | 4WEH10D4X6EW110NETK4B10V
4WEH10D4X/6EW110NETK4/B10V
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The 4WEH10D4X/6EW110NETK4/B10V valve belongs to the WEH Directional Spool Valves series and is produced by Bosch Rexroth for hydraulic automation tasks that require reliable directional control of pressure and flow. It is supplied in nominal size NG10 so it fits mounting patterns common to mid-range manifolds, and it carries spool symbol D to establish a specific flow path when actuated. The unit tolerates operating pressures up to 280 bar on ports P, A, and B, allowing it to manage high-pressure circuits, while a maximum flow capacity of 160 l/min maintains adequate volume for actuators of matching size. Directional shifting is generated by a 6E high-power pilot solenoid for fast response, and the pilot channels use the ET configuration so both pilot supply and return are taken internally. Stable pilot operation is maintained between a minimum pilot pressure of 10 bar and a maximum of 250 bar, and when the solenoid is de-energized the control spool is returned to its neutral position by springs.
The electrical interface is a K4 connector in accordance with DIN EN 175301-803, providing standardized wiring for the pilot coil, and a manual override is present to allow local actuation during commissioning or power loss. System cleanliness must be held to class 20/18/15 per ISO 4406 to prevent spool wear and sticking. The porting pattern follows ISO 4401-05-05-0-05 so the valve can be bolted to subplates or manifolds with that layout without alterations. Dynamic sealing is handled by FKM elastomers that tolerate high fluid temperatures and aggressive media, and a throttle insert coded B10 with a 1.0 mm orifice can be fitted to meter inlet flow and damp pressure shocks. Pilot return pressure is permitted up to 160 bar, which supports applications where the pilot drain is routed to a back-pressure line rather than an open tank.
Technical Specifications
Cleanliness Class
20/18/15 (ISO 4406 (c))
Control Spool Return
Springs
Electrical Connection
K4 (DIN EN 175301-803)
Manual Override
N (Yes)
Max Flow (ng10)
160 l/min
Max Operating Pressure (p, A, B)
280 bar
Max Pilot Pressure
250 bar
Max Pilot Return Pressure (y Internal, Ac)
160 bar
Minimum Pilot Pressure
10 bar
Nominal Size
NG10
Pilot Control Valve
6E (High-Power)
Pilot Oil Configuration
ET (Internal P, Internal T)
Porting Pattern
ISO 4401-05-05-0-05
Seal Material
FKM (V)
Spool Symbol
D
Throttle Insert
B10 (Ø1.0 mm)
1620 Old Apex Road
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