Bosch Rexroth | 4WRKE16E125L-3X6EG24K31A5D3M
4WRKE16E125L-3X/6EG24K31/A5D3M
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The 4WRKE16E125L-3X/6EG24K31/A5D3M directional valve is manufactured by Bosch Rexroth within the 4WRKE Directional Valves series and provides proportional flow control for hydraulic automation circuits. Its nominal size 16 defines the mounting interface and cavity dimensions used in NG16 manifolds. A linear characteristic curve L keeps flow proportional to spool position for predictable actuator movement. The valve supplies a nominal flow of 125 L/min at a 10 bar pressure drop so medium-capacity systems receive steady throughput, while a maximum main valve flow of 460 L/min covers short-term peak demands. Port pressures can reach 350 bar, allowing operation in high-pressure drives. External pilot oil supply and drain prevent tank backpressure from influencing the pilot stage, improving accuracy. A ±10 V command signal lets common analog controllers modulate the spool position, and a maximum response sensitivity of 0.5% means small input changes yield finely tuned flow adjustments.
The design limits hysteresis to 1%, reducing offset between increasing and decreasing commands so repeatability is maintained. A 6E solenoid with a removable coil allows coil replacement without disturbing hydraulic lines. The 24 V DC supply voltage aligns with standard machine control power rails, while the K31 component plug provides a sealed electrical connection suitable for industrial environments. Electrical demand peaks at 72 W, a figure used when sizing power supplies. A ZDR 6 DP0-4X/40YM-W80 pressure reducing valve in the pilot section stabilizes pilot pressure and ensures consistent actuation. Spool symbol E defines the internal flow paths that deliver four-way control for double-acting actuators. The unit weighs 11.2 kg, a factor considered when selecting mounting brackets and handling equipment.
Technical Specifications
Characteristic Curve
L (Linear)
Command Signal
+/- 10 V
Connector Type
K31 (Component Plug)
Hysteresis (max)
1%
Max Main Valve Flow
460 L/min
Max Port Pressure (p,a,b)
350 bar
Nominal Flow (10 Bar Pressure Drop)
125 L/min
Nominal Size
16
Pilot Oil Supply/drain
External/External
Power (max)
72 W
Pressure Reducing Valve
ZDR 6 DP0-4X/40YM-W80
Response Sensitivity (max)
0.5%
Solenoid Type
6E (Removable Coil)
Spool Symbol
E
Supply Voltage
24 V DC
Weight
11.2 kg
1620 Old Apex Road
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