Bosch Rexroth | 4WRKE16W6-125L-3X6EG24ETK31A1D3M
4WRKE16W6-125L-3X/6EG24ETK31/A1D3M
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The 4WRKE16W6-125L-3X/6EG24ETK31/A1D3M belongs to the 4WRKE Directional Valves series from Bosch Rexroth and is intended to regulate flow and pressure in automated hydraulic systems. It is built in nominal size 16, establishing the port geometry for manifold installation, and it delivers a nominal flow of 125 L/min so actuators receive a stable volume rate under rated conditions. Ports p, a, and b tolerate operating pressures up to 350 bar, allowing the device to serve high-pressure circuits without additional pressure relief devices. A ±10 V command and feedback interface converts controller signals into spool displacement for closed-loop positioning, while the onboard electronics operate on 24 V DC. Electrical consumption peaks at 72 W and 1.5 A, parameters that guide power-supply sizing. Connection to the control cabinet is made through a DIN EN 175201-804 plug, simplifying field wiring.
Hydraulic fluid supplied to this unit must satisfy ISO 20/18/15 cleanliness to avoid contaminant-related wear. When required, the assembly can pass up to 460 L/min, a capability that supports rapid cylinder motion beyond its nominal rating. Response sensitivity is limited to 0.5% of the command signal, and hysteresis does not exceed 1%, so small input changes translate into predictable spool shifts. Internal pilot oil supply and internal pilot oil drain eliminate external pilot lines, reducing plumbing complexity. The enclosure carries an IP65 rating, protecting the electronics against dust ingress and water jets encountered in industrial environments. A mass of 11.2 kg influences bracket design and makes single-person handling feasible during installation.
Technical Specifications
Cleanliness Class (main)
ISO 20/18/15
Command/actual Value Interface
±10 V
Electrical Connection
DIN EN 175201-804
Hysteresis
1% max
Max Operating Pressure (p,a,b)
350 bar
Max Permissible Flow
460 L/min
Max Power
72 W
Max Supply Current
1.5 A
Nominal Flow
125 L/min
Nominal Size
16
Pilot Oil Drain
Internal
Pilot Oil Supply
Internal
Response Sensitivity
0.5% max
Supply Voltage
24 V DC
Valve Protection
IP65
Weight
11.2 kg
1620 Old Apex Road
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