Bosch Rexroth | 4WE10HB3XCG125N9K4V
4WE10HB3X/CG125N9K4/V
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The 4WE10HB3X/CG125N9K4/V directional spool valve is manufactured by Bosch Rexroth and is part of the WE Directional Spool Valves series. It directs hydraulic oil to actuators in automated machinery. The nominal size 10 establishes the port dimensions for manifolds and subplates, and the spool symbol HB defines the internal flow pattern chosen for this application. A maximum operating pressure of 315 bar allows the valve to withstand high system loads, while a maximum flow of 120 l/min limits the volume that can pass without excessive pressure drop. The solenoid uses a wet-pin DC design that relies on hydraulic fluid for cooling, and the coil is energized by a 125 V DC supply suitable for industrial controllers. A switching capacity of 15 000 cycles per hour supports rapid positioning tasks.
Continuous operation is possible because the solenoid is rated for a 100 % duty cycle under S1 conditions. Electrical termination is handled through an EN 175301-803 Form A connector (K4), which simplifies wiring and replacement. The valve body achieves an IP65 protection class, preventing dust ingress and water jets from affecting the coil or terminals. A concealed manual override, coded N9, permits local shifting during commissioning or power loss without exposing moving parts. Tank port pressure is limited to 160 bar, so return lines must remain below this value. FKM sealing, indicated by the /V suffix, resists mineral oils and many synthetic fluids found in modern hydraulic systems.
Technical Specifications
Duty Cycle
100% (S1)
Electrical Connector
EN 175301-803 Form A (K4)
Manual Override
Concealed (N9)
Max Switching Frequency
15000 cycles/h
Maximum Flow
120 l/min
Maximum Operating Pressure
315 bar
Maximum Tank Port Pressure
160 bar
Nominal Size
10
Protection Class
IP65
Seal Material
FKM (/V)
Solenoid Type
Wet-Pin DC (Standard)
Spool Symbol
HB
Supply Voltage
125 V DC
1620 Old Apex Road
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