Bosch Rexroth | 4WRKE27W6-500L-3X6EG24EK31A1D3M
4WRKE27W6-500L-3X/6EG24EK31/A1D3M
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The 4WRKE27W6-500L-3X/6EG24EK31/A1D3M valve is manufactured by Bosch Rexroth within the 4WRKE Directional Valves series and regulates hydraulic flow and direction in automated machinery. The main stage requires oil cleaned to 20/18/15 according to ISO 4406 to protect the spool lands, while the pilot stage needs 17/15/12 ISO 4406 for its finer orifices. A ±10 V command and actual feedback interface allows closed-loop position control from standard motion cards. Wiring is completed through a DIN EN 175201-804 connector that streamlines field replacement. The coil tolerates impulse loads up to 3 A during switching events. An IP65 enclosure guards the electronics against dust ingress and water spray. Continuous current draw is limited to 1.5 A, easing demand on control power sources. Flow channels handle up to 1000 L/min so large actuators can be driven without excessive pressure loss.
The housing and spool withstand 210 bar on ports P, A, and B, enabling use in medium-pressure circuits. At a 10 bar differential the valve delivers a nominal 500 L/min, giving designers a dependable sizing reference. Pilot oil drains externally to prevent main line back-pressure from slowing the pilot spool. The pilot stage shifts with 11.7 L/min from step 0 to 100 percent, ensuring consistent response across the control range. Pilot supply is taken internally, removing the need for an additional feed line. Electrical consumption peaks at 72 W, keeping panel heat modest. NBR seals provide compatibility with common mineral oils and maintain elasticity over the service temperature range. The solenoid operates from a 24 V DC source that matches typical industrial power buses.
Technical Specifications
Cleanliness Class (main Valve)
20/18/15 (ISO 4406)
Cleanliness Class (pilot Valve)
17/15/12 (ISO 4406)
Command/actual Interface
±10 V
Connector Standard
DIN EN 175201-804
Impulse Load (max)
3 A
Ingress Protection
IP65
Max Current
1.5 A
Max Flow (main Valve)
1000 L/min
Max Operating Pressure (p, A, B)
210 bar
Nominal Flow (Δp=10 Bar)
500 L/min
Pilot Oil Drain
External
Pilot Oil Flow (step 0–100%)
11.7 L/min
Pilot Oil Supply
Internal
Power (max)
72 W
Seal Material
NBR
Supply Voltage
24 V DC
1620 Old Apex Road
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