Bosch Rexroth | 4WRKE16R200L-3X6EG24ETK31A1D3M
4WRKE16R200L-3X/6EG24ETK31/A1D3M
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The 4WRKE16R200L-3X/6EG24ETK31/A1D3M directional valve belongs to the 4WRKE Directional Valves series from Bosch Rexroth and controls actuator movement in hydraulic automation circuits. A nominal size of 16 defines the mounting envelope and port dimensions for mid-range flow tasks, while spool type R sets the metering geometry that shifts flow between work ports. The linear characteristic curve ensures proportional flow change relative to spool travel, simplifying closed-loop position control. At a pressure drop of 10 bar the valve passes a nominal flow of 200 L/min, allowing steady cylinder speeds in production equipment. Its operating pressure limit of 350 bar lets the unit work on high-pressure manifolds without external relief devices. A ±10 V command and actual feedback interface supports servo controllers that supervise position and force. The electronics are powered by a 24 V DC supply, and hysteresis is held to ≤1%, which improves repeatability during rapid directional changes.
The valve handles a maximum main flow of 460 L/min, giving additional headroom for transient peaks during acceleration phases. Internal pilot oil supply eliminates separate feed lines, and internal pilot oil drain returns fluid through the work ports, reducing external plumbing. An ISO 4401-07-06-0-94 porting pattern allows direct installation on standard subplates in modular hydraulic manifolds. Electrical connection is made via a DIN EN 175201-804 connector so wiring follows common industry pinouts. A built-in pressure reducing valve type ZDR 6 DP0-4X/40YM-W80 keeps the pilot stage stable when system pressure fluctuates. NBR sealing material resists common mineral oils and maintains leak integrity over temperature variations. The assembly weighs 11.2 kg, a factor considered when selecting mounting brackets and support structures.
Technical Specifications
Characteristic Curve
Linear (L)
Command/actual Interface
±10 V (A1)
Connector Standard
DIN EN 175201-804
Hysteresis
≤ 1%
Max Main Valve Flow
460 L/min
Max Operating Pressure (p/a/b)
350 bar
Nominal Flow (Δp=10 Bar)
200 L/min
Nominal Size
16
Pilot Oil Drain
Internal (ET)
Pilot Oil Supply
Internal (ET)
Porting Pattern
ISO 4401-07-06-0-94
Pressure Reducing Valve
ZDR 6 DP0-4X/40YM-W80
Seal Material
NBR (M)
Spool Type
R
Supply Voltage
24 V DC
Weight
11.2 kg
1620 Old Apex Road
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