Bosch Rexroth | Z4WEH10E63-4X6EW110NETK4B10
Z4WEH10E63-4X/6EW110NETK4/B10
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The Z4WEH10E63-4X/6EW110NETK4/B10 valve is part of the Z4WE Solenoid Actuation Spool Valves series produced by Bosch Rexroth for directional control in hydraulic automation systems. Its electrohydraulic actuation converts an electrical signal into pilot oil movement so the main spool can shift under system pressure. A 110 VAC 50/60 Hz coil energizes the high-power 6E pilot valve, delivering rapid response for circuit changes. The pilot oil supply is internal, labeled ET, which eliminates external lines and simplifies manifold assembly. Pilot oil is also returned internally to keep leakage paths inside the housing. The NG10 nominal size matches standard subplates for medium-flow circuits. The ISO 4401-05-04-0-05 porting pattern aligns the valve with widely used stack dimensions for quick interchangeability. An E63 spool symbol defines the flow paths that open or block pressure and return lines in two discrete positions.
The valve handles a maximum flow of 160 l/min to accommodate mid-range actuators without excessive pressure drop. Its main stage tolerates up to 315 bar operating pressure, allowing use on high-pressure supply lines, while the pilot stage is limited to 250 bar for safe control pressure on the solenoid section. A Ø1.0 mm throttle insert, coded B10, meters pilot oil to damp sudden shifts and reduce shock. Acceptable ambient temperatures range from −20 °C to +50 °C when NBR seals are fitted, supporting typical mobile and industrial environments. Hydraulic fluids may vary between 2.8 mm²/s and 500 mm²/s viscosity so the unit can run on light or heavy oils without sticking. The electrical interface is an EN 175301-803 K4 plug, providing standardized pin layout for quick wiring. A manual override is present to allow spool actuation during commissioning or power loss.
Technical Specifications
Actuation
Electrohydraulic
Ambient Temp Range
-20 to +50 °C (NBR)
Coil Voltage
110 VAC (50/60 Hz)
Electrical Connection
EN 175301-803 (K4)
Manual Override
Present
Max Flow
160 l/min
Max Operating Pressure
315 bar
Max Pilot Pressure
250 bar
Nominal Size
NG10
Pilot Oil Return
Internal (ET)
Pilot Oil Supply
Internal (ET)
Pilot Valve
6E High-Power
Porting Pattern
ISO 4401-05-04-0-05
Spool Symbol
E63
Throttle Insert
Ø1.0 mm (B10)
Viscosity Range
2.8 to 500 mm²/s
1620 Old Apex Road
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