Bosch Rexroth | 4WRZE16E150-7X6EG24N9ETK31A1D3V
4WRZE16E150-7X/6EG24N9ETK31/A1D3V
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The 4WRZE16E150-7X/6EG24N9ETK31/A1D3V proportional directional valve is produced by Bosch Rexroth for the WRZ Proportional Directional Valves series and serves to meter flow and set direction in hydraulic automation loops. A nominal size of 16 defines the working passage area and aligns the valve with medium-frame actuators. Its nominal flow reaches 150 l/min at a 10 bar differential pressure, giving adequate capacity for fast cylinder or motor movement. A main port can handle up to 350 bar, enabling use in high-pressure presses or injection machinery. The built-in electronics accept a ±10 V command signal so common motion controllers can issue position or velocity references. A 24 V DC supply powers the amplifier while drawing 1.8 A, which guides power-supply sizing. The solenoid circuit tolerates up to 2.5 A, and a coil resistance of 2 Ω at 20 °C defines the current rise profile during actuation.
Integration details further support field use. The ISO 4401-07-06-0-94 porting pattern lets the valve mount on standardized subplates without re-machining manifolds. An electrical connector built to DIN EN 175201-804 secures the control cable and seals the enclosure. With an IP65 rating, the housing resists dust ingress and low-pressure water jets often present near hydraulic power units. External drain ports may see up to 250 bar, whereas internal drain return is limited to 30 bar, so circuit designers can select the proper drainage scheme. The coil can withstand temperatures up to 150 °C, safeguarding performance during extended high-duty cycles. Dynamic behavior is characterized by a pilot oil flow of 5.5 l/min and a pilot volume of 4.6 cm³ for a full 0–100 % step, enabling predictable transition times in closed-loop motion systems.
Technical Specifications
Command Input Signal
±10 V
Electrical Connector
DIN EN 175201-804
Electronics Current Consumption
1.8 A
Max Coil Temperature
150 °C
Max Operating Pressure (main)
350 bar
Max Return Pressure (ext Drain)
250 bar
Max Return Pressure (int Drain)
30 bar
Max Solenoid Current
2.5 A
Nominal Flow (10 Bar Δp)
150 l/min
Nominal Size
16
Pilot Oil Flow (0-100% Step)
5.5 l/min
Pilot Oil Volume (0-100% Step)
4.6 cm3
Porting Pattern
ISO 4401-07-06-0-94
Solenoid Coil Resistance (20 °c)
2 Ω
Supply Voltage (electronics)
24 V DC
Type Of Protection
IP65
1620 Old Apex Road
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