Bosch Rexroth | 4WRKE16E125L-3X6EG24K31A1D3M
4WRKE16E125L-3X/6EG24K31/A1D3M
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The 4WRKE16E125L-3X/6EG24K31/A1D3M directional valve belongs to the 4WRKE Directional Valves series and is manufactured by Bosch Rexroth for closed-loop hydraulic control tasks. It is built in nominal size 16 so it fits manifolds sized for medium flow circuits. With a nominal flow of 125 L/min at a 10 bar differential, the valve regulates actuator speed accurately, while a maximum permissible flow of 460 L/min allows short-term peak demands without excessive pressure drop. Working ports A and B withstand operating pressures up to 350 bar, matching high-pressure industrial systems. Pilot oil is supplied externally and drained externally, which isolates the pilot stage from main line pressure fluctuations. A 24 V DC supply powers the integrated electronics, and a ±10 V command signal drives the spool to the required position. Connection to the machine harness is made through a DIN EN 175201-804 plug.
The electronics return a ±10 V measurement output that reports actual spool position for closed-loop controllers. During dynamic shifts the amplifier draws up to 1.5 A, so the cabinet power supply must be sized accordingly. Mounting follows porting pattern ISO 4401-07-06-0-94, enabling direct substitution on standard subplates. Pilot pressure is stabilized by a ZDR 6 DP0-4X/40YM-W80 pressure reducing valve fitted in the pilot circuit. NBR seals contain mineral hydraulic oil and keep leakage low over long service intervals. The housing carries an IP65 protection rating, blocking dust and water jets encountered on mobile or wash-down equipment. A weight of 11.2 kg must be supported by the manifold or additional brackets during installation. These characteristics let the directional valve perform consistent proportional flow and pressure control in automated hydraulic machinery.
Technical Specifications
Command Signal (a1)
±10 V
Electrical Connection
DIN EN 175201-804 Plug
Max Current
1.5 A
Max Operating Pressure (p, A, B)
350 bar
Max Permissible Flow (main Valve)
460 L/min
Measurement Output (a1)
±10 V
Nominal Flow (Δp 10 Bar)
125 L/min
Nominal Size
16
Pilot Oil Drain
External
Pilot Oil Supply
External
Porting Pattern
ISO 4401-07-06-0-94
Pressure Reducing Valve
ZDR 6 DP0-4X/40YM-W80
Seals
NBR
Supply Voltage
24 V DC
Valve Protection
IP65
Weight
11.2 kg
1620 Old Apex Road
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