Bosch Rexroth | 4WRTE16E1-200L-4X6EG24K31A1M
4WRTE16E1-200L-4X/6EG24K31/A1M
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The 4WRTE16E1-200L-4X/6EG24K31/A1M is a directional control valve in the 4WRTE Directional Control Valves series from Bosch Rexroth that meters flow and directs pressure in hydraulic automation circuits. It is built in nominal size 16, establishing the internal passage dimensions for medium-capacity manifolds. The valve tolerates a maximum operating pressure of 350 bar on ports P, A, and B so it can manage high-pressure service lines, while its pilot stage remains limited to 315 bar. During fast spool shifts at 315 bar the pilot stage draws 14 l/min, and a full 0–100 % stroke requires 2.9 cm³ of pilot oil, figures that influence pump sizing and response time. System efficiency is supported by a maximum recommended flow of 460 l/min through the main stage. Dynamic accuracy is aided by peak hysteresis of 0.1 % and a response sensitivity that does not exceed 0.05 %, allowing precise positioning in closed-loop control.
The valve operates on a nominal 24 V DC supply, with an acceptable range from 18 V DC to 35 V DC so power units with minor voltage deviation remain usable. Return flow can be routed externally at pressures up to 250 bar or internally when static back-pressure stays below 10 bar, providing flexibility for circuit layouts. Oil cleanliness must reach ISO 4406 class 18/16/13 to maintain spool clearances and prolong service life. Thermal stability is defined by a temperature drift limited to 0.3 % per 10 °C, ensuring minimal shift in flow characteristics as oil warms during duty cycles. A maximum zero-point deviation of 1 % keeps the neutral position consistent after installation, completing the specifications required for repeatable hydraulic motion.
Technical Specifications
Fluid Cleanliness
ISO 4406 18/16/13
Hysteresis
0.1% (max)
Max Operating Pressure (p, A, B)
350 bar
Max Pilot Pressure
315 bar
Max Recommended Flow
460 l/min
Max Return Pressure Port T (external)
250 bar
Max Return Pressure Port T (internal)
10 bar (static)
Nominal Size
16
Pilot Oil Flow (step @315 Bar)
14 l/min
Pilot Oil Volume (0–100%)
2.9 cm³
Response Sensitivity
0.05% (max)
Supply Voltage (nominal)
24 V DC
Supply Voltage Max
35 V DC
Supply Voltage Min
18 V DC
Temperature Drift
0.3%/10 °C (max)
Zero Point Deviation
1% (max)
1620 Old Apex Road
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