Bosch Rexroth | 4WRZ16E150-7X6EG24N9ETK4D3M-674
4WRZ16E150-7X/6EG24N9ETK4/D3M-674
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The 4WRZ16E150-7X/6EG24N9ETK4/D3M-674 valve is manufactured by Bosch Rexroth within the WRZ Proportional Directional Valves series and is intended to modulate hydraulic flow in automated machinery. It operates on a DC supply, with a coil resistance of 4.8 Ω at 20 °C that permits a continuous 100 % duty cycle while drawing up to 1.5 A for proportional actuation. Thermal endurance reaches a maximum coil temperature of 150 °C. Electrical connection is made through a DIN EN 175301-803 plug, and the housing is sealed to IP65 for protection against dust and low-pressure water jets. Installation aligns with the ISO 4401-07-06-0-94 mounting pattern to fit standard sub-plates.
Hydraulic ratings confirm a maximum main flow of 460 l/min and a nominal flow of 150 l/min at a 10 bar differential, allowing high-capacity circuit control. The valve withstands operating pressures up to 350 bar, with return limits of 250 bar at the external T port, 30 bar at the internal T port, and 30 bar at the Y port. Pilot operation demands 5.5 l/min of oil for full-scale command and displaces 4.6 cm³ in the process, supporting smooth spool movement. These limits define safe operating envelopes for proportional directional control in heavy-duty hydraulic systems.
Technical Specifications
Coil Resistance (20°c)
4.8 Ω
Duty Cycle
100%
Electrical Connection
DIN EN 175301-803
Ingress Protection
IP65
Max Coil Temperature
150 °C
Max Current
1.5 A
Max Main Flow
460 l/min
Max Operating Pressure
350 bar
Max Return Pressure (port T, Ext)
250 bar
Max Return Pressure (port T, Int)
30 bar
Max Return Pressure (port Y)
30 bar
Mounting Pattern
ISO 4401-07-06-0-94
Nominal Flow (Δp=10 Bar)
150 l/min
Pilot Oil Flow (0→100%)
5.5 l/min
Pilot Oil Volume (0→100%)
4.6 cm³
Type Of Voltage
DC
1620 Old Apex Road
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